U.S. Chart No. 1 Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts
12th Edition April 15, 2013
Prepared Jointly by
Department of Commerce National Oceanic and Atmospheric Administration
Department of Defense National Geospatial-Intelligence Agency
1 New in Edition 12: ECDIS Symbols and Other ECDIS Information ECDIS
Symbology for displaying Electronic Navigational Charts (ENCs) on an Electronic Chart Display and Information System (ECDIS) has been added to U.S. Chart No. 1. See the Preface and Introduction sections for more details. In addition to the ECDIS symbols shown in the traditional lettered sections of U.S. Chart No. 1, there are now several special pages devoted exclusively to providing important details about ECDIS. These pages are distinguished by the ECDIS icon, as shown in the top left corner of this page. The ECDIS pages are also listed in the table of contents in italic type.
One major difference in the use of paper charts and ENCs is the ability of ECDIS to display the same feature differently depending on user settings and other conditions, such as a ship’s draft. An important example is that ECDIS displays wrecks, rocks and other obstructions with their traditional “paper-chart” symbols if they are at or deeper than the depth of the safety contour set for the ship. Dangers that are shoaler are portrayed with the unique ECDIS “isolated danger” symbol shown at left. (See the ECDIS Portrayal of Depths page for more information about the ECDIS safety contour.)
Another advantage that ECDIS provides over paper charts is enabling users to obtain more information about a feature through a “cursor pick.” Some feature attribute values that can be obtained by cursor pick are noted throughout U.S. Chart No. 1. This is especially true if a particular value, such as height, vertical clearance or the like is included in the INT symbol description. The cursor pick icon, shown at left, is used to indicate when a reference to a cursor pick is made. There are many other attribute values that users may obtain through a cursor pick that are not specifi cally noted. These include, but are not limited to, the purpose, seasonality, periodicity, status, color, height, type of structure and the visual or radar conspicuousness of features; shape, color or color pattern of buoys; characteristics of lights; category of obstructions and wrecks; radar wave length, radio frequency, communication channel and call signs; the presence of AIS transmitted signals; information regarding pilotage services and many more.
No man is an island and no single reference document stands on its own. U.S. Chart No. 1 is a handy guide for ECDIS users, but it is no substitute for mandated ECDIS training.
The ECDIS user and developer communities are invited to help improve the presentation of ECDIS symbology and infor- mation in U.S. Chart No. 1. We want to know what you think works well, which parts are a little rocky, and what additional information you would like to have included in the next edition of U.S. Chart No. 1.
Please send any recommendations or corrections to: [email protected] or National Ocean Service, NOAA (N/CS2) Attention: U.S. Chart No. 1 1315 East West Highway Silver Spring, MD 20912-3282
2 SYMBOLS, ABBREVIATIONS AND TERMS Contents
Document Sections and ECDIS Pages Symbol Sections
Preface 5 GENERAL Introduction 5 A Chart Number, Title, Marginal Notes Schematic Layout 8 B Positions, Distances, Directions, Compass Day, Dusk and Night Color Palettes 9 TOPOGRAPHY Conspicuous and Non-Conspicuous Features 26 C Natural Features ECDIS Portrayal of Depths 45 D Cultural Features Examples of Routing Measures in ECDIS 66 E Landmarks Simplifi ed and Traditional “Paper Chart” Symbols 86 F Ports Index of Abbreviations 106 G (Not currently used) Index 112 Appendix 1, IALA Maritime Buoyage System 124 HYDROGRAPHY H Tides, Currents I Depths J Nature of the Seabed K Rocks, Wrecks, Obstructions, Aquaculture L Offshore Installations M Tracks, Routes N Areas, Limits O (Not currently used)
NAVIGATION AIDS AND SERVICES P Lights Q Buoys, Beacons R Fog Signals S Radar, Radio, Satellite Navigation Systems T Services U Small Craft (Leisure) Facilities
3 4 PREFACE INTRODUCTION Presentation of Two Symbology Sets New Column Headers This edition of U.S. Chart No. 1 has a new name and a new look. Its title is now Sym- The orientation of this edition of U.S. Chart No. 1 has been rotated 90° into a land- bols, Abbreviations and Terms used on Paper and Electronic Navigational Charts. For scape format to allow two additional columns to be added to the right side of the page. the fi rst time, U.S. Chart No. 1 presents both of the major symbology sets used for These columns hold the ECDIS symbols corresponding to the paper chart symbols marine navigation. shown on the left side. As in previous editions, the symbols used on paper nautical charts produced by the “INT 1” symbols, as specifi ed in the Regulations of the IHO for International (INT) National Oceanic and Atmospheric Administration (NOAA) and the National Geospatial- Charts and Chart Specifi cations of the IHO, appear in the second column from the Intelligence Agency (NGA) and digital raster representations of those charts, such left, after the symbol number. Any variations from INT 1 symbology that are used on as NOAA Raster Nautical Charts (NOAA RNCs®), are presented in lettered sections charts produced by NOAA or NGA are shown in the NOAA, NGA and the “Other NGA” organized in categories, such as Landmarks, Depths, and Lights. New in this edition columns (columns 4a, 4b, and 5 respectively). is the inclusion of the corresponding symbols used to portray Electronic Navigational ECDIS symbols and their descriptions are shown in columns 6 and 7 respectively. Chart (ENC) data on Electronic Chart Display and Information Systems (ECDIS) as The ECDIS description usually provides the generic symbol name given in the IHO specifi ed by the International Hydrographic Organization (IHO). Specifi cations for Chart Content and Display Aspects of ECDIS, although sometimes Other Non-ECDIS Digital Displays May Portray Data Differently other clarifying terms are also provided in column 7. The ECDIS symbols shown use Navigation systems certifi ed to meet the exacting performance standards established the day color palette (see page 9). by the International Maritime Organization (IMO) are said to be ECDIS “type approved.” When columns 4a and 4b are combined, this indicates that NOAA and NGA both use The symbology used to display ENCs or other non-ENC nautical navigational data on the same non-INT 1 symbol for that particular feature. When any of columns 4a, 4b, or non-ECDIS systems, such as geographic information systems, recreational GPS and 5 are blank, then the INT 1 symbol has been adopted for use by the organization for other chart display systems can differ signifi cantly from the symbology specifi ed for which that column applies. ECDIS type approved systems. U.S. Chart No. 1 only shows the symbology used on The schematic layout following this introduction shows a typical symbol table page. ECDIS. It provides details about the table headers and the types of information presented in each of the columns. Sample Chart Layouts Section A presents two schematics showing typical layouts of the major elements of NOAA and NGA charts.
INFORMATION ON SELECTED CHART FEATURES Soundings The sounding datum reference is stated in the chart title. Soundings on NOAA and NGA charts may be shown in fathoms, feet, fathoms and feet, fathoms and fractions, or meters and decimeters. In all cases the unit of depth used is shown in the chart title and outside the border of the chart in bold type (see item b in Section A). For ECDIS, the sounding datum is part of the ENC metadata, which can be retrieved through a cursor inquiry. Heights Heights of lights, landmarks, structures, etc. refer to the shoreline plane of reference. The unit of height is shown in the chart title. When the elevations of islets or bare rocks are offset into the adjacent water, they are shown in parentheses. For ECDIS, the unit of height is meters. Drying Heights For rocks and banks that cover and uncover, elevations are underlined and are ref- erenced to the sounding datum as stated in the chart title (or in the ENC metadata). When the heights of rocks that cover and uncover are offset into the adjacent water, they are shown in parentheses. 5 Shoreline Light Range (Visibility) Shoreline shown on charts represents the line of contact between the land and a A light’s range or visibility is given in nautical miles, except on the Great Lakes and selected water elevation. In areas affected by tidal fl uctuation, this line of contact is adjacent waterways, where light ranges are given in statute miles. For lights having usually the mean high water line. In confi ned coastal waters of diminished tidal infl u- more than one color, NOAA charts give only the shortest range of all the colors. On ence, a mean water level may be used. The shoreline of interior waters (rivers, lakes) NGA charts, multiple ranges may be shown using the following convention. For lights is usually a line representing a specifi ed elevation above a selected datum. Shoreline with two colors, the fi rst number indicates the range of the fi rst color and the second is symbolized by a heavy line (symbol C 1). Apparent shoreline is used on charts to number indicates the range of the second color. For example, Fl WG 12/8M means the show the outer edge of marine vegetation where the limit would be expected to appear range of the white light is 12 nautical miles and the range of green light is 8 nautical as the shoreline to the mariner or where it prevents the shoreline from being clearly miles. For lights with three colors, only the longest and shortest ranges are given and defi ned. Apparent shoreline is symbolized by a light line (symbols C 32, C 33, C p, the middle range is indicated by a dash. For example, Fl WRG 12-8M means that the C q and C r). range of the white light is 12 nautical miles, the range of green light is 8 nautical miles Landmarks and the range of the red light is between 8 to 12 nautical miles. The dash can appear in any of the three positions. A structure or a conspicuous feature on a structure may be shown by a landmark sym- bol with a descriptive label (see Section E). Prominent buildings that could assist the Aids to Navigation Positioning mariner may be shown by actual shape as viewed from above (see Sections D and E). The fi xed and fl oating aids to navigation depicted on charts have varying degrees of On NGA charts, landmark legends shown in capital letters indicate that a landmark is reliability. Floating aids are moored to sinkers by varying lengths of chain and may shift conspicuous; the landmark may also be labeled “CONSPICUOUS” or “CONSPIC.” due to sea conditions and other causes. Buoys may also be carried away, capsized On NOAA charts, all landmarks are considered to be conspicuous, and landmark leg- or sunk. Lighted buoys may be extinguished and sound signals may not function, ends shown in all capital letters indicate a landmark has been positioned accurately; because of ice or other causes. Therefore, prudent mariners will not rely solely on any legends using both upper and lower case letters indicate an approximate position. single aid to navigation, particularly on fl oating aids, but will also use bearings from fi xed objects and aids to navigation on shore. ECDIS portrays conspicuous features with black symbols and non-conspicuous fea- tures with brown symbols. Only the conspicuous version is shown in the lettered sec- Colors tions of U.S. Chart No. 1. See the ECDIS “Conspicuous and Non-Conspicuous Fea- Color conveys the nature and importance of features found on nautical charts. Chart tures” page in front of Section E for more information. elements signifi cant to marine navigation, such as lights, compass roses and regu- IALA Buoyage System lated areas, are emphasized with magenta. Lateral marks on NOAA charts are shown with a red or green fi ll. Shades of blue depict potential hazards to navigation, typically The International Association of Marine Aids to Navigation and Lighthouse Authorities shallow water and submerged obstructions. Areas of deeper water believed to be clear (IALA) Maritime Buoyage System is followed by most of the world’s maritime nations; of obstructions are shown as white. Land, and other features that are always dry, are however, systems used in some foreign waters may be different. IALA buoyage is depicted with buff on NOAA charts and gray on NGA charts. Foreshore and other divided into two regions: Region A and Region B. All navigable waters of the United intertidal features are portrayed with a green tint. Other colors may be used to provide States follow IALA Region B rules, except U.S. possessions west of the International additional information, such as protected areas, which are outlined in blue or green Date Line and south of 10° north latitude, which follow IALA Region A rules. and mineral lease blocks, which are outlined in red. The major difference between the two buoyage regions is the color of the lateral Traffi c Separation Schemes marks. Region A uses red to port and Region B uses red to starboard (red-right- returning). The shapes of the lateral marks are the same in both regions, can to port Traffi c separation schemes show recommended lanes to increase safety of naviga- and cone (nun) to starboard, when entering from seaward. Cardinal and other marks, tion, particularly in areas of high density shipping. These schemes are described in the such as those for isolated dangers, safe water and special marks are also the same International Maritime Organization (IMO) publication, Ships Routeing. Traffi c separa- in both regions. Section Q and Appendix 1 illustrate the IALA buoyage system for both tion schemes are generally shown on nautical charts at scales of 1:600,000 and larger. Regions A and B. When possible, traffi c separation schemes are plotted to scale and shown as depicted in Section M. U.S. Lateral Marks Conversion Scales Most of U.S. waters are in IALA Region B. In the U.S. system, on entering a channel from seaward, buoys and beacon dayboards on the starboard side are red with even Depth conversion scales are provided on all charts to enable the user to work in numbers and have red lights, if lit. Buoys and beacon dayboards on the port side are meters, fathoms or feet. green with odd numbers and have green lights, if lit. Preferred channel buoys have Correction Date red and green horizontal bands with the top band color indicating the preferred side The date of each new chart edition is shown below the lower left border of the chart. of passage. The date of the latest NGA issued U.S. Notice to Mariners applied to the chart is
6 shown after the edition date. NOAA charts also show the date of the latest U.S. Coast Guard Local Notice to Mariners applied to the chart.
ADDITIONAL RESOURCES Information on the use of nautical charts, aids to navigation, sounding datums and the practice of navigation in general is in The American Practical Navigator (Bowditch), available through the “Publications” link on the NGA Maritime Safety Information portal at msi.nga.mil/NGAPortal/MSI.portal. Tide and current data over U.S. waters is available from the NOAA Center for Opera- tional Oceanographic Products and Services at tidesandcurrents.noaa.gov. Detailed information about specifi c lights, buoys, and beacons and general information about the U.S. Aids to Navigation System and the Uniform State Waterway Marking Sys- tems is in the U.S. Coast Guard Light List, at navcen.uscg.gov/?pageName=lightLists. Information about aids to navigation in foreign waters is in the NGA List of Lights, avail- able through the “Publications” link on the NGA Maritime Safety Information portal at msi.nga.mil/NGAPortal/MSI.portal. Other important information that cannot be shown conveniently on nautical charts can be found in the NOAA U.S. Coast Pilot®, at www.nauticalcharts.noaa.gov/staff/ chartspubs.html and NGA Sailing Directions, available through the “Publications” link on the NGA Maritime Safety Information portal at msi.nga.mil/NGAPortal/MSI.portal. U.S. Nautical Chart Catalogs and Indexes NGA catalogs are available through the “Product Catalog” link on the NGA Maritime Safety Information portal at msi.nga.mil/NGAPortal/MSI.portal. NOAA catalogs are available at www.nauticalcharts.noaa.gov/mcd/ccatalogs.htm. A list of the dates of the latest editions of NOAA charts is at www.nauticalcharts.noaa.gov/mcd/dole.htm.
CORRECTIONS AND COMMENTS Corrections to U.S. Chart No. 1 will appear in the weekly U.S. Notice to Mariners, available through the “Notice to Mariners” link on the NGA Maritime Safety Information portal at msi.nga.mil/NGAPortal/MSI.portal. Users may send corrections or comments to [email protected] or by mail to: National Ocean Service, NOAA (N/CS2) Attention: U.S. Chart No. 1 1315 East West Highway Silver Spring, MD 20910-3282
7 Schematic Layout of U.S. Chart No. 1:
A B K Rocks, Wrecks, Obstructions D C Rocks Supplementary national symbol: a E Plane of Reference for Heights → H Plane of Reference for Depths → H No. INT Description NOAA NGA Other NGA ECDIS rock which covers and uncovers or is awash at low water
(06) Uncov 1m underwater hazard which Rock which covers and uncov- ()2 11 ()2 4 covers and uncovers with ers, height above chart datum ()0 6 drying height Uncov 1m isolated danger of depth less than the safety contour 1 2 3 4a 4b 5 6 7
A Section designation
B Section
C Sub-section
D Reference to “Supplementary national symbols” at the end of each section
E Cross-reference to terms in other sections
1 Column 1: Numbering system following the “Chart Specifi cation of the IHO”. A letter in this column indicates a supplementary national symbol or abbreviation for which there is no international equivalent.
2 Column 2: Representation that follows the “Chart Specifi cations of the IHO” (INT 1 symbol)
3 Column 3: Description of symbol, term, or abbreviation
4a * Column 4a: Representation used on charts produced by the National Oceanic and Atmospheric Administration (NOAA)
4b * Column 4b: Representation used on charts produced by the National Geospatial-Intelligence Agency (NGA)
5 Column 5: Representation of symbols that may appear on NGA reproductions of foreign charts
6 ** Column 6: Representation used to portray ENC data on ECDIS
7 ** Column 7: Description of ECDIS symbols
* When columns 4a and 4b are combined then NOAA and NGA both use the same symbol. When either column 4a or 4b is blank then the respective agency uses the INT 1 symbol shown in column 2. When columns 6 and 7 have several rows for the same symbol number, then ECDIS portrays this feature differently depending on the ship’s draft and other conditions as defi ned in ECDIS by the mariner (as is the ** case for K 11). When columns 6 and 7 combine rows to span across several symbol numbers then ECDIS portrays all of the grouped symbol numbers the same way (see C 5–C 7). † Signifi es that this representation is obsolete, but it may appear on older charts.
Signifi es that a feature attribute value, such as a height, distance or name, may be obtained through an ECDIS cursor pick report. There are many attribute values that may be obtained in this manner, but the cursor pick icon is only used to note values that are specifi cally referred to in the description of symbols column and that ECDIS does not display next to the symbol. Height of trees in C 14 is an example.
8 Day, Dusk and Night Color Palettes ECDIS
ECDIS allows the mariner to change the color palette that is used to display an ENC. Three different color tables have been designed to provide the maximum clarity and contrast between features on the display under three different lighting conditions on the bridge, namely Day, Dusk and Night.
Each symbol is rendered in a different color appropriate for the lighting condition that the color table is meant for. This design provides maximum contrast for the display on a sunny day, as well as preserving night vision on a dimly lit bridge in the evening. This allows the mariner to look back and forth between the chart on the ECDIS display and out to sea through the bridge window without the mariner’s eyes needing to readjust to a difference in light intensity.
DAY • The Day Color Table, meant to be used in bright sunlight, uses a white back- ground for deep water and looks the most like a traditional paper chart.
• The Dusk Color Table uses a black background for deep water and colors are subdued, but slightly brighter than those used in the Night Color Table.
• The Night Color Table, meant to be used in the darkest conditions, uses a black background for deep water and muted color shades for other features.
The images on the right show each of the three color palettes. DUSK The symbols shown in the remainder of this document use the day color palette.
NIGHT
9 10 Chart Number, Title, Marginal Notes A
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Note: thisisanexampleonlyandnottobeusedfornavigation
ƍƎ W NATIONALOCEANIC ANDATMOSPHERIC ADMINISTRATION U.S. DEPARTMENT OFCOMMERCE Published atWashington, D.C. NATIONAL OCEANSERVICE COAST SURVEY 4 12 13 North American Datumof1983 6FDOHDW/DWƍ (World GeodeticSystem1984) Mercator Projection 3 Tidal Data→H Magnetic Features 13 12 10 14 11 9 8 7 6 5 4 3 2 1 at astatedlatitude. Scale ofchart.Somechartshavescale Seal(s) etc. To bereadbeforeusing chart. Explanatory notesonchartconstruction, Chart title Corner coordinates Dimensions ofinnerborders Notice toMarinerscorrections Date ofcurrentedition Copyright note Publication note(imprint) Reference ellipsoidofthechart series (ifany) Chart numberininternational(INT) Chart numberinnationalchartseries Linear scaleonlarge scalecharts → B 11
A Chart Number, Title, Marginal Notes cation of a latticed chart (if any) Linear border scale on large charts. On smaller scales use latitude borders for sea miles. Cautionary notes (if any). Information on particular features, to be read before using chart. Source Diagram (if any). Navigators should be cautious where surveys are inadequate. Reference to a larger scale chart Reference to an adjoining chart of similar scale Conversion scales Reference to the units used for depth measurement Compass rose Bar code and stock number of words on chart Translation Glossary: that are not in English Identi fi Stream information Tidal and Tidal within the chart coverage f c a b e g d 15 16 17 18 19 B Positions, Distances, Directions, Compass
No. INT Description NOAA NGA Other NGA ECDIS
Geographical Positions
1 Lat Latitude
2 Long Longitude International Meridian 3 (Greenwich) 4 ° Degree(s)
5 ′ Minute(s) of arc
6 ″ Second(s) of arc
Position approximate
Point feature or area of Position approximate (not low accuracy 7 PA accurately determined or does PA (PA) not remain fi xed)
Sounding of low accuracy
Point feature or area of low accuracy Position doubtful (reported in PD PD (PD) 8 various positions)
Sounding of low accuracy
9 N North
10 E East
11 S South
12 W West
13 NE Northeast
14 SE Southeast
15 NW Northwest
16 SW Southwest
12 Positions, Distances, Directions, Compass B
No. INT Description NOAA NGA Other NGA ECDIS
Control Points
20 Triangulation point
21 † Observation spot Obs Spot
Position of an elevation Fixed point 22 or control point
23 † Benchmark BM
24 Boundary mark Bdy Mon
Distance along waterway, no Canal and distance point 25.1 7
visible marker St M 32 with no mark
7 Distance along waterway with Y Bn (46) Canal and distance point 25.2 visible marker
Note: ECDIS uses a magenta “km” symbol to represent distance marks. However, the distances shown along waterways on NOAA-produced ENCs are displayed in statute miles.
Symbolized Positions (Examples)
Symbols in plan: position is 30 center of primary symbol ECDIS follows the paper chart convention for the position of symbols, except for simplifi ed symbols for Symbols in profi le: position is at buoys and beacons (see Q 1). 31 bottom of symbol
Point symbols: accurate MAST Position of a point feature 32 positions
Point symbol: approximate ECDIS indicates approximate position only for Mast 33 † position wrecks, obstructions, islets and shoreline features.
Units Supplementary national symbols: a–m
40 km Kilometer(s)
41 m Meter(s)
42 dm Decimeter(s)
43 cm Centimeter(s)
44 mm Millimeter(s) International nautical mile(s) M Mi NMi NM 45 (1852m), sea mile(s) 46 Cable(s) (0.1M) cbl
13 B Positions, Distances, Directions, Compass
No. INT Description NOAA NGA Other NGA ECDIS
47 ft Foot/Feet
48 Fathom(s) fm
49 h Hour(s) hr
50 m min Minute(s) of time
51 s sec Second(s) of time
52 kn Knot(s)
53 t Ton(s), Tonnage (weight)
54 cd Candela(s)
Magnetic Compass Supplementary national symbols: n
60 Variation var VAR Varn Magnetic variation
61 Magnetic mag
62 Bearing brg
63 True T
64 Decreasing
65 Increasing
66 Annual change
67 Deviation dev
Cursor pick site for magnetic variation at a point
Note of magnetic variation, in 68.1 position Cursor pick site for magnetic variation over an area
Note of magnetic variation, out 68.2 of position
14 Positions, Distances, Directions, Compass B
No. NOAA / NGA ECDIS
Compass rose, normal pattern (smaller patterns of compass rose may be used)
Magnetic variation (example): VAR 4°15’W (2011) means magnetic variation was 4°15’W in 2011 ANNUAL DECREASE 8’ means annual change is 8’E or decreasing 8’ annually For 2012 the magnetic variation is 4°7’W
0 350 10 2 340 0 30 330
40 320 0
30 50 310 330
GNETIC MA 60
300 60 Cursor pick site for 7 0 0 0 9 0 70 2 3 magnetic variation at a point 4 15'W (2 80 011 AR ) 280 V
90 90
270
0
7 2
' A 8 260 N N S E
UAL E A
DE C R 100
1
2 2 5 0
0 10
1
40 2
240 0
2
1 150
230 0
13
210 220 180 140
210 150 20 0 160 19 0 180 170
Isogonic lines, Isogonals
Cursor pick site for 71 Varn - 3 magnetic variation along a line
15 B Positions, Distances, Directions, Compass
No. INT Description NOAA NGA Other NGA ECDIS
Local magnetic anomaly: Within the enclosed area the Cursor pick site for 82.1 magnetic variation may deviate magnetic anomaly along from the normal by the value a line or over an area shown
Local magnetic anomaly: LOCAL MAGNETIC LOCAL MAGNETIC Cursor pick site for Local Magnetic Anomaly LOCAL MAGNETIC DISTURBANCE Where the area affected cannot DISTURBANCE ANOMALY magnetic anomaly at a 82.2 (see Note) (see note) be easily defi ned, a legend only (see note) (see note) point is shown at the position
Supplementary National Symbols
a Square meter(s) m2
b Cubic meter(s) m3
c Inch(es) in
d Yard(s) yd
e Statute mile(s) St M St Mi
f Microsecond(s) μsec μs
g Hertz Hz
h Kilohertz kHz
i Megahertz MHz
j Cycles/second cps c/s
k Kilocycle(s) kc
l Megacycle(s) Mc
m Ton(s) (U.S. short ton) (2,000lbs) T
n Degree(s) deg
16 Natural Features C
No. INT Description NOAA NGA Other NGA ECDIS
Coastline Supplementary national symbols: a–e
Foreshore → I, J
1 Coastline, surveyed Coastline
Coastline or shoreline 2 Coastline, unsurveyed construction of low accuracy in position
Presence of cliffs coincident with coastline is obtained by cursor pick high low
Sloping ground crest line distant from coastline, Cliffs, Steep coast 3 radar or visually † conspicuous
Cliff as an area
†
Conspicuous hill or Hillocks 4 mountain top †
5 Flat coast
6 Sandy shore Nature of coastline is † obtained by cursor pick
7 Stony shore, Shingly shore †
Conspicuous hill or Sandhills, Dunes 8 mountain top †
17 C Natural Features
No. INT Description NOAA NGA Other NGA ECDIS
Relief Supplementary national symbols: e–g
Plane of reference for heights → H
Elevation contour with Contour lines with values and spot height, contour 109 m 10 spot height value is obtained by cursor pick
Position of an elevation Spot heights 119 m 11 or control point
Approximate contour lines with 12 values and approximate height Elevation contour with spot height, contour 109 m value is obtained by cursor pick
13 Form lines with spot height
135 TT 14 Approximate height of top of Approximate height of trees is trees (above height datum) obtained by cursor pick
Water Features, Lava
20 River, Stream
River
21 Intermittent river
18 Natural Features C
No. INT Description NOAA NGA Other NGA ECDIS
Rapids
22 Rapids, Waterfalls Waterfall
Waterfall, visually conspicuous
23 Lakes Lake
24 Salt pans
Continuous pattern for Glacier 25 an ice area (glacier, etc.)
26 Lava fl ow
†
Vegetation Supplementary national symbols: i–t
Line of trees
30 Woods in general Wooded Wooded area †
19 C Natural Features
No. INT Description NOAA NGA Other NGA ECDIS
31 Prominent trees (isolated or in groups)
31.1 Deciduous tree Tree 31.2 Evergreen (except conifer)
31.3 Conifer Vegetation, line of trees 31.4 Palm
31.5 Nipa Palm
31.6 Casuarina Wooded area 31.7 Filao
31.8 Eucalypt
Mangrove with coastline or shoreline construc- Mangrove 32 tion of low accuracy in position 0 0
Marsh with coastline or 33 Marsh, Swamp, Reed beds shoreline construction of low accuracy in position
Supplementary National Symbols
Chart sounding datum line Uncovers a (surveyed)
Approximate sounding datum b line (inadequately surveyed)
Foreshore; Strand (in general); c Stones; Shingle; Gravel; Mud; Mud Sand
Breakers Breakers d Breakers along a shore
(if extensive)
20 Natural Features C
No. INT Description NOAA NGA Other NGA ECDIS
e Rubble †
f Hachures
†
g Shading
†
i Deciduous woodland †
j Coniferous woodland †
k Tree plantation †
l Cultivated fi elds †
m Grassfi elds †
n Paddy (rice) fi elds †
o Bushes †
p Apparent shoreline Marsh
Vegetation or topographic q (Feature Area Limit-in general)
r Cypress Cypress
s Grass Grass
t Eelgrass Eelgrass
21 D Cultural Features
No. INT Description NOAA NGA Other NGA ECDIS
Settlements, Buildings
Height of objects → E Landmarks → E
1 Urban area Built-up area
Settlement with scattered 2 buildings
Settlement (on medium and 3 small scale charts) Name Built-up area as a point 4 Village Vil
Conspicuous single Buildings 5 building
Important building in built-up Conspicuous single 6 area building in built-up area
7 Street name, Road name Street name is obtained by cursor pick
Status of ruins is obtained by cursor Ruin, Ruined landmark 8 Ruins Ru pick
Roads, Railways, Airfi elds Supplementary National Symbols: a–c
10 Motorway, highway Road, track or path as a line
11 Road (hard surfaced)
Road as an area Track, Path (loose or 12 unsurfaced)
22 Cultural Features D
No. INT Description NOAA NGA Other NGA ECDIS
13 Railway, with station Railway, with station
14 Cutting Cutting
Embankment
15 Embankment Embankment, visually or radar conspicuous
Tunnel Tunnel 16 Tunnel with depth below the seabed encoded
Airport as a point
Runway as a line 17 Airport, Airfi eld Airport
Airport area, with runway area and visually con- spicuous runway area
Other Cultural Features Supplementary National Symbols: d–i clr 20.0 Vertical clearance VERT CL 6 M clr cl 20.0 Closed clearance 20 Vertical clearance above high water 6 clr op 20.0 Open clearance FIXED BRIDGE sf clr 20.0 Safe clearance HOR CL 25 FT VERT CL 20 FT HOR CL 8 M Horizontal clearance is obtained by Horizontal clearance 21 cursor pick 8
clr 20.0 Fixed bridge with vertical clr 20.0 Bridge 22 clearance
23 D Cultural Features
No. INT Description NOAA NGA Other NGA ECDIS
Opening bridge (in general) with 23.1 vertical clearance
clr cl 8.2 clr op 20.0 Swing bridge with vertical 23.2 clearance clr cl 8.2 Opening bridge clr op 20.0 Lifting bridge with vertical 23.3 clearance (closed and open)
Bascule bridge with vertical 23.4 clearance
clr 20.0
23.5 Pontoon bridge clr 20.0 Bridge
clr cl 8.2 clr op 20.0
Draw bridge with vertical 23.6 clr cl 8.2 Opening bridge clearance clr op 20.0
clr 20.0 Transporter bridge with vertical clr 20.0 Bridge 24 clearance below fi xed structure
clr 20.0 Aerial cableway
Overhead transporter, Aerial 25 cableway with vertical clearance clr 20.0 Aerial cableway, radar conspicuous
OVERHEAD POWER CABLE sf clr 20.0 AUTHORIZED CL 140 FT Transmission line Overhead power cable with pylons and safe vertical clearance sf clr 20.0 26 Transmission line, radar TOWER TOWER conspicuous
Note: The safe vertical clearance above the height datum, as defi ned by the responsible authority, is given in magenta where known; otherwise the physical vertical clearance is shown in black as in D 20 (also see diagram at H 20).
24 Cultural Features D
No. INT Description NOAA NGA Other NGA ECDIS
clr 20.0 Overhead cable Overhead cable, Telephone Tel 27 line, Telegraph line with vertical clearance clr 20.0 Overhead cable, radar conspicuous
clr 20.0 Overhead pipeline Overhead pipe with vertical OVHD PIPE 28 VERT CL 6FT clearance clr 20.0 Overhead pipeline, radar conspicuous
Oil, gas pipeline, 29 Pipeline on land submerged or on land
Supplementary National Symbols
a Highway markers
Same grade Railway (Ry) b (single or double track) Ry above Railroad (RR)
Ry below
c Abandoned railroad
d Bridge under construction
e Footbridge
Viaduct f Viaduct
g Fence
h Power transmission line
Approximate vertical clearance i abt 21
25 Conspicuous and Non-Conspicuous Features ECDIS
There are 25 features for which ECDIS displays either a black symbol, if the feature is visually conspicuous, or a brown symbol if is not. Only conspicuous landmarks Silo are depicted on NOAA paper charts and ENCs. Therefore, only the conspicuous Single building symbol versions are shown in the symbol tables of U.S. Chart No. 1. Both versions of the symbols for these features are shown on this page. Tank
Cairn Tank farm
Chimney
Tower
Dish aerial
Water tower
Dome Windmill Flare stack
Windmotor Fortifi ed structure
Wind generator farm Hill or mountain top
The seven symbols shown below represent features that only have a brown sym- Mast bol. There is no corresponding black, conspicuous symbol. The brown symbol is
displayed regardless of the conspicuousness of the feature.
Monument Cranes
Mosque or minaret Flagstaff, fl agpole
Position of a point feature
Mangrove
Radar scanner Mine, quarry
Radio, television tower Quarry
Refi nery Timber yard
Religious building, Christian Tree
Religious building, non-Christian
26 Landmarks E
No. INT Description NOAA NGA Other NGA ECDIS
Plane of Reference for Height → H Lighthouses → P Beacons → Q
General
Non-conspicuous point feature Non-conspicuous TANK MONUMENT 1 Examples of landmarks Tr building
Non-conspicuous water tower
Examples of conspicuous Conspicuous point landmarks (On NOAA charts, feature EMPIRE STATE SPIRE a large circle with dot and BUILDING 2 capitals indicates that position Conspicuous building is accurate; a small circle with RADAR MAST CHIMNEY lowercase indicates that position Conspicuous water is approximate.) tower The information symbol is displayed if a Pictorial sketches (in true supplemental image is 3.1 position) available, which may be accessed by cursor pick
Pictorial sketches (out of 3.2 position)
Height of top of a structure (30) 4 above height datum Height is obtained by cursor pick Height of structure above ground (30) 5 level Landmarks
Church as a point
10.1 Church Ch Church as an area
10.2 Church tower
Church tower, spire, or Church spire SPIRE Spire 10.3 dome
10.4 Church cupola CUPOLA Cup
11 Chapel Ch Chapel
27 E Landmarks
No. INT Description NOAA NGA Other NGA ECDIS
Position of a point Cross, Calvary 12 feature
13 Temple
14 Pagoda Religious building, non-Christian 15 Shinto shrine, Joss house
16 Buddhist temple or shrine
17 Mosque, Minaret Mosque or minaret
18 Marabout
Landmark area, type is Cemetery Cem 19 obtained by cursor pick
TOWER 20 Tower Tr Tower Tr
Water tower, Water tank on a STANDPIPE WTR TR 21 Water tower tower S’pipe Wtr Tr
CHIMNEY CHY 22 Chimney (208) (202) Chimney Chy
23 Flare stack (on land) FLARE Flare Flare stack
Monument (including column, MONUMENT Mon Monument 24 pillar, obelisk, statue)
25.1 Windmill WINDMILL Windmill Windmill, status of ruins is obtained by cursor pick 25.2 Windmill (without sails)
26.1 Wind turbine, Windmotor WINDMOTOR Windmotor Wind motor †
26.2 Wind farm WIND FARM Wind Farm Wind generator farm
FS FS 27 Flagstaff, Flagpole Flagstaff, fl agpole FP FP
28 Landmarks E
No. INT Description NOAA NGA Other NGA ECDIS
R MAST R Mast 28 Radio mast, Television mast Mast TV MAST TV Mast
R TR R Tr 29 Radio tower, Television tower Radio, television tower TV TR TV Tr
30.1 Radar mast RADAR MAST Radar Mast Mast
30.2 Radar tower RADAR TR Radar Tr Radar tower
30.3 Radar scanner Radar scanner
DOME (RADAR) RADOME 30.4 Radome Dome Dome (Radar) Radome
ANT (RADAR) 31 Dish aerial Dish aerial Ant (Radar)
Tank
32 Tanks TANK Tk Tank farm
SILO Silo 33 Silo Silo ELEVATOR Elevator
Fortifi ed structure (on large scale Fortifi ed structure 34.1 charts)
Castle, Fort, Blockhouse (on 34.2 small scale charts) Fortifi ed structure Battery, Small fort (on small 34.3 scale charts)
35.1 Quarry (on large scale charts) Quarry area
35.2 Quarry (on small scale charts) Quarry
36 Mine
29 E Landmarks
No. INT Description NOAA NGA Other NGA ECDIS
37.1 Recreational vehicle site
Camping site (including 37.2 recreational vehicles) Supplementary National Symbols
a Muslim shrine †
b Tomb †
c Watermill †
d Factory Facty
e Well Well
f School Sch Sch
g Hospital Hosp
h University Univ Univ
i Gable GAB Gab
Tel k Telegraph Telegraph offi ce Tel Off l Magazine Magz
m Government house Govt Ho
n Institute Inst
o Courthouse Ct Ho
p Pavilion Pav
q Telephone T
r Limited Ltd
s Apartment Apt
t Capitol Cap
u Company Co
v Corporation Corp
30 Ports F
No. INT Description NOAA NGA Other NGA ECDIS
Protective Structures Supplementary national symbols: a–c
Dike as a line
Dike as a line, Dike, Levee, Berm 1 conspicuous
Dike as an area
2.1 Seawall (on large scale charts)
Seawall
2.2 Seawall (on small scale charts)
Causeway as a line
Causeway, covers and uncovers as a line 3 Causeway Cswy Causeway as an area
Causeway, covers and uncovers as an area
Bkw Breakwater as a line 4.1 Breakwater (in general)
Breakwater (loose boulders, 4.2 tetrapods, etc.) Breakwater as an area
Breakwater (slope of concrete or 4.3 masonry)
Training wall (partly submerged Training wall 5 at high water)
31 F Ports
No. INT Description NOAA NGA Other NGA ECDIS
6.1 Groin (always dry) Groin Groin (always dry)
6.2 Groin (intertidal) Groin Groin (intertidal)
6.3 Groin (always under water) Groin Groin (submerged)
Harbor Installations
Depths → I Anchorages, Limits → N Beacons and other fi xed marks → Q Marina → U
10 Fishing harbor Fishing harbor
11.1 Boat harbor, Marina Yacht harbor, marina
11.2 Yacht berths without facilities
11.3 Yacht club, Sailing club
Mole as a line 12 Mole (with berthing facility) Mole as an area
13 Quay, Wharf Whf Wharf (quay)
14 Pier, Jetty Pier Pier (jetty), promenade pier 15 Promenade pier
Pontoon as a line
16 Pontoon
Pontoon as an area
17 Landing for boats Ldg Lndg Landing
32 Ports F
No. INT Description NOAA NGA Other NGA ECDIS
Steps 18 Steps, Landing stairs Landing steps
19.1 Designation of berth 3A3 Berth number Nr 3
19.2 Visitors’ berth Yacht harbor, marina
Dn Dol 20 Dolphin Mooring dolphin † Dol (Great Lakes) Dol
Deviation mooring 21 Deviation dolphin dolphin
Pile 22 Minor post or pile Pile or bollard † Pile (Great Lakes)
23 Slipway, Patent slip, Ramp Slipway, ramp
0
24 Gridiron, Scrubbing grid Gridiron
25 Dry dock, Graving dock Dry dock
Floating dock as a line 26 Floating dock Floating dock as an area
27 Non-tidal basin, Wet dock Wet dock and gate
Dock
28 Tidal basin, Tidal harbor Dock, under construction or ruined
33 F Ports
No. INT Description NOAA NGA Other NGA ECDIS
Floating hazard
Boom Floating barrier, e.g. oil barrier, Floating oil barrier, oil 29.1 Floating Barrier security barrier retention (high pressure pipe)
Boom, fl oating obstruction
Floating oil barrier, oil Oil retention barrier (high Floating Barrier retention (high pressure 29.2 pressure pipe) pipe)
30 Works on land, with year date 2011
Ruin or works under Works at sea, Area under Under construction 31 construction 2011 reclamation, with year date (2011) Under constr
Year and condition of Under constr under construction or 2011 Works under construction, with (2011) ruin is obtained by cursor 32 2011 year date pick
33.1 Ruin Ruins
Pier 33.2 Ruined pier, partly submerged at Pier, ruined and partly high water 0 submerged
34 Hulk Hk Hk Hulk
34 Ports F
No. INT Description NOAA NGA Other NGA ECDIS
Canals, Barrages Supplementary national symbol: d
Clearances → D Signal Stations → T Cultural Features → B
Canal
40 Canal Canal Ditch
Lock gate as a line
Lock 2 Tide Sta 41.1 Lock (on large scale charts) Lock 1
Tide Sta Center Lock gate as an area Control
Canal Lock
41.2 Lock (on small scale charts) Navigable lock gate Ditch Sluice (Tidegate, Floodgate)
Non-navigable lock gate
42 Caisson, Gate Caisson as a line
Caisson as an area
Non-navigable lock gate
43 Flood barrage Flood barrage as a line
Flood barrage as an area
Dam as a line Dam, Weir (direction of fl ow 44 shown is left to right) Dam as an area
35 F Ports
No. INT Description NOAA NGA Other NGA ECDIS
Transhipment Facilities Supplementary national symbols: e–f
Roads → D Railways → D Tanks → E
Roll-on, Roll-off (RoRo), Ferry RoRo terminal 50 Terminal
Conspicuous single Transit shed, Warehouse (with building, designation is 51 designation) obtained by cursor pick
Timber yard as a point
Timber yard 52 † Timber yard as an area
Lifting capacity is obtained by cursor pick
Crane with lifting capacity, Crane as a point 53.1 Traveling crane (on railway)
Crane as an area e
Crane Container crane (with lifting Cran 53.2 capacity) †
Crane, visually conspicuous as an area 53.3 Sheerlegs (conspicuous)
Public Buildings Supplementary national symbol: g
Conspicuous single Harbormaster’s offi ce Hbr Mr 60 building Conspicuous single building 61 Custom offi ce Cus Ho Customs
Health offi ce, Quarantine 62.1 building † Health Office
Conspicuous single Hospital 62.2 Hosp building
63 Post offi ce PO
36 Ports F
No. INT Description NOAA NGA Other NGA ECDIS
Supplementary National Symbols
a Jetty (partly below MHW)
Subm Jetty b Submerged jetty
Submerged Jetty
c Jetty (on small scale charts)
d Pump-out facilities P
Quarantine offi ce e † Quar
Mooring Canal
f Mooring Canal 1
g Conveyor Conveyor
37 H Tides, Currents
Terms Relating to Tidal Levels
INT Terms Supplementary National Terms (see l–t for other terms and symbols)
No. Term Description No. Term Description
1 CD Chart Datum, Datum for sounding reduction a HW High Water
2 LAT Lowest Astronomical Tide b HHW Higher High Water
3 HAT Highest Astronomical Tide c LW Low Water
4 MLW Mean Low Water d LWD Low Water Datum
5 MHW Mean High Water e LLW Lower Low Water
6 MSL Mean Sea Level f MTL Mean Tide Level
7 Height datum, Land survey datum g ISLW Indian Spring Low Water
High Water Full and Change (Vulgar establishment of MLWS Mean Low Water Springs HWF&C 8 h the port)
9 MHWS Mean High Water Springs i LWF&C Low Water Full and Change
10 MLWN Mean Low Water Neaps j CRD Columbia River Datum
11 MHWN Mean High Water Neaps k GCLWD Gulf Coast Low Water Datum
12 MLLW Mean Lower Low Water
13 MHHW Mean Higher High Water
14 MHLW Mean Higher Low Water
15 MLHW Mean Lower High Water
16 Sp Spring tide
17 Np Neap tide
38 Tides, Currents H
No.
Tidal Levels and Charted Data
Tide Gauge → T
Planes of reference are not exactly as shown below for all charts. They are usually defined in notes under chart titles. Spot height 128
Overhead power cable 100
Safe vertical clearance Elevation of light source (magenta) Topographic Charted vertical Charted vertical contours clearance clearance MHHW (7) Islet height Charted HW (coast) line MHW
20 MSL
Sea surface at any time Height of tide Observed depth (12) Drying height MLW
Charted LW (drying) line MLLW (Chart datum)
Charted depth (sounding)
Notes: 1) The numbers 128, 100, (7) and (12), shown above, are examples of how spot heights, topographic contour labels, islet heights and drying heights appear on NOAA paper charts. The numbers are enclosed in (parentheses) if the value is offset into the water to more clearly show the islet or rock. 2) On NOAA charts, except for lake charts, the HW (coast) line is equal to the MHW line. Tide Tables
No. INT Description NOAA
TIDAL INFORMATION
PLACE Height referred to datum of soundings (MLLW)
Mean Higher Mean Mean Tabular statement of NAME (LAT/LONG) High Water High Water Low Water semi-diurnal or diurnal tides feet feet feet 30 Note: The order of the Baltimore, Ft. McHenry (39°16'N/76°35'W) 1.7 1.4 0.2 columns of levels will be Annapolis, U.S. Naval Academy (38°59'N/76°29'W) 1.4 1.2 0.2 the same as that used in national tables of tidal Washington D.C., Washington Channel (38°52'N/77°01'W) 3.2 2.9 0.1 predictions. Dashes (---) located in datum columns indicate unavailable datum values for a tide station. Real-time water levels, tide predictions, and tidal current predictions are available on the Internet from http://tidesandcurrents.noaa.gov.
(Nov 2011)
39 H Tides, Currents
No. ECDIS
Point or area for which a tidal stream table is available
31 Tidal stream table
Boundary of an area for which there is tidal information
Tidal Streams and Currents Supplementary national symbols: m–t
Breakers → K Tide Gauge → T
No. INT Description NOAA NGA Other NGA ECDIS
2.5 kn Flood stream, rate at spring tides
Current or tidal stream whose direction is not known 40 3.0 kn Flood tide stream with rate
Boundary of an area for which there is tidal information
Ebb stream, rate at 2.5 kn spring tides
Current or tidal stream whose direction is not known 41 2.8 kn Ebb tide stream
Boundary of an area for which there is tidal information
40 Tides, Currents H
No. INT Description NOAA NGA Other NGA ECDIS
42 Current in restricted waters 2.5 kn Non-tidal current Ocean current with rates and 43 seasons (see Note)
Tide rips
44 Overfalls, tide rips, races
symbol used only in small areas Overfalls, tide rips; eddies; breakers as point, line, and area Eddies 45 Eddies symbol used only in small areas
Position of tabulated tidal stream Point for which a tidal 46 data with designation stream table is available
Offshore position for which tidal 47 levels are tabulated
Supplementary National Symbols (Supplementary national terms relating to tidal levels are listed after H 17)
l Stream Str
m Current, general, with rate 2 kn
n Velocity, Rate vel
o Knots kn
p Height ht
q Flood fl
r New moon
s Full moon
10 11 0 9 1 t Current diagram 8 2 7 3 6 5 4
u Gulf Stream Limits Approximate location of Axis of Gulf Stream
41 I Depths
No. INT Description NOAA NGA Other NGA ECDIS
General
Sounding of low 1 ED Existence doubtful accuracy
Sounding of low accuracy
Underwater hazard with 2 SD Sounding of doubtful depth depth greater than 20 meters
Isolated danger of depth less than the safety contour
Sounding of low accuracy
3.1 Rep Reported, but not confi rmed Point feature or area of low accuracy
Low accuracy line demarking area wreck or Reported (with year of report), obstruction Rep (2011) 3.2 but not confi rmed Low accuracy line demarking foul area
Obstruction, depth not stated
Sounding of low accuracy
Underwater hazard with depth of 20 meters or less Reported, but not confi rmed 4 sounding or danger (on Underwater hazard with small scale charts only) depth greater than 20 meters
Isolated danger of depth less than the safety contour
Point feature or area of low accuracy
42 Depths I
No. INT Description NOAA NGA Other NGA ECDIS
Soundings Supplementary national symbols: a–c
Plane of Reference for Depths → H Plane of Reference for Heights → H
Sounding shoaler than or Sounding in true position (NOAA equal to safety depth shows fathoms and feet with 3 3 4 66 10 vertical numbers and meters with 4 sloping numbers) Sounding deeper than safety depth
11 Sounding out of position (23) 3375 Depths are always shown in their true position in ECDIS (4 ) 12 Least depth in narrow channel 7
Status of no bottom 13 No bottom found at depth shown found is obtained by cursor pick
Soundings which are unreliable or taken from a smaller scale source (NOAA shows unreliable Sounding of low 14 soundings in fathoms and feet accuracy with sloping numbers and in meters with vertical numbers)
Drying heights and contours Drying height, less than 6 15 above chart datum or equal to safety depth
Natural watercourse (in intertidal Tideway 16 area), tidal gully, tideway
43 I Depths
No. INT Description NOAA NGA Other NGA ECDIS
Depths in Fairways and Areas Supplementary national symbols: a, b
Plane of Reference for Depths → H
20 Limit of dredged area
Dredged channel or area with 21 depth of dredging in meters and decimeters Dredged area
30 FEET APR 2011 Depth, date of latest Dredged channel or area with survey and other 22 depth and year of the latest information is obtained control survey by cursor pick 30 FEET APR 2011
Dredged channel or area with 23 maintained depth
3 29 23 Area swept by wire drag. The 76 24 depth is shown at chart datum. 8 22 Swept area (The latest date of sweeping is 30 (1930) swept to 9.6 shown in parentheses.) 18 7 21
0
0 Unsurveyed 10 (see note) 10 Incompletely surveyed area
Depths (see ZOC diagram)
Unsurveyed or inadequately Unsurveyed 25 surveyed area; area with inadequate depth information 13 11 Inadequately surveyed 12 (see note) 10 17 13 Unsurveyed area
Unsurveyed rky 22 20
44 ECDIS Portrayal of Depths ECDIS
ECDIS depth related symbols closely resemble their paper chart counterparts; however, ECDIS provides valuable additional information to mariners that paper charts cannot.
Soundings ECDIS enables mariners to set their own-ship “safety depth.” If no depth is set, ECDIS sets the value to 30m. Soundings equal to or shoaler than the safety depth are shown in black; deeper soundings are displayed in a less conspicuous gray. Fractional values are shown with subscript numbers of the same size.
Depth Contours & Depth Areas Depth contours in ECDIS are portrayed with a thin gray line. Each pair of adjacent depth contours is used to create depth area features. These are used by ECDIS to tint different depth levels and to initiate alarms when a ship is headed into unsafe water. Portrayal of Depth Areas with 2 Color Settings Depth Contour Labels
ECDIS depth contour labels are not centered and oriented along iso- Some ECDIS enable mariners to defi ne two additional depth areas for medium- lines as they appear on paper charts. They are displayed upright and deep water and medium-shallow water by setting a “deep contour” value and may appear either on or next to the contour lines that they describe. a “shallow contour” value. If this option is used, the safety contour is displayed The labels are black and the same size as soundings, but the labels between the medium deep and medium shallow contours. have a light “halo” to set them apart. The graphic to the left shows depth labels and soundings both deeper and shoaler than the safety depth. Note that depths on NOAA paper charts and ENCs are usually com- piled in fathoms and feet. Because ECDIS displays depths in meters, soundings and contour lines often show fractional meter values. The “own-ship safety contour” (described below) is always displayed, but mariners may choose to have all other depth contours turned off.
Safety Contour ECDIS uses a “safety contour” value to show an extra thick line for the depth contour that separates “safe water” from shoaler areas. If the mariner does not set an own-ship safety contour value, ECDIS sets the value to 30m. If the ENC being displayed does not have a contour line equal to the safety contour depth value set by the mariner, then ECDIS sets the next deeper contour as the safety contour. Depending on the contour intervals used on individual ENCs, ECDIS may set different safety contours as a ship transits from one ENC to another. ECDIS will initiate an alarm if the ship’s future track will cross the safety contour Portrayal of Depth Areas with 4 Color Setting within a specifi ed time set by the mariner.
Two or Four Tints for Shading Depth Areas
ECDIS tints all depth areas beyond the (green tinted) foreshore in either one of two or Some ECDIS also provide the mariner with the option of one of four shades of blue. This is similar to the convention used for paper charts, but displaying a cross-hatch “shallow water” pattern over all the depths used to change from one tint to another are based on the safety contour and depth areas shoaler than the safety contour. thus “customized” for each ship. If the mariner chooses two shades to be displayed, water deeper than the safety contour is shown in an off-white color, water shoaler than the safety contour is tinted blue.
45 I Depths
No. INT Description NOAA NGA Other NGA ECDIS
Depth Contours
Drying contour Two Shades Four Shades Low water line
foreshore foreshore
Blue tint, in one or more shades, or tint ribbons are shown to different limits according to the
scale and purpose of the chart very and the nature of the bathymetry. shallow depth shallow water On some charts, contours and shallow contour values are printed in blue. depth
medium shallow depth
30 safety contour
medium deep depth
deep water contour
deep depth
all deeper contours deep depth
Approximate depth 20 contour 31 Approximate depth contours 50 Approximate safety depth contour Supplementary National Symbols
a Swept channel 6
89 Swept area, not adequately b sounded (shown by purple or 15 102 green tint) 10 119
2ft c Stream 5 6
46 Nature of the Seabed J
No. INT Description NOAA NGA Other NGA ECDIS
Types of Seabed Supplementary national abbreviations: a–ag
Rocks → K
1 S Sand S Sand
2 M Mud M Mud
3 Cy Clay Cy Clay
4 Si Silt Si Silt
5 St Stones St Stones
6 G Gravel G Gravel
7 P Pebbles P Pebbles
8 Cb Cobbles Cb Cobbles
9.1 R Rock; Rocky Rk; rky R Rock
9.2 Bo Boulder(s) Blds R Boulder
R Lava
10 Co Coral, Coralline algae Co Coral
11 Sh Shells (skeletal remains) Sh Shells
12.1 S/M Two layers, e.g. sand over mud
fS M Sh The main constituent is given 12.2 fi rst for mixtures, e.g. fi ne sand f S M Sh fS.M.Sh with mud and shells
13.1 Wd Weed (including kelp) Weed, kelp
13.2 Kelp, Weed Kelp Weed, kelp as an area
47 J Nature of the Seabed
No. INT Description NOAA NGA Other NGA ECDIS
Sand waves as a point
Sand waves as a line
14 Sandwaves Sandwaves
Sand waves as an area
15 Spring in seabed Spring Spring
Types of Seabed, Intertidal Areas
gravel Areas of gravel and Area with stones and gravel 20 stone stone
Rocky area, which covers and 21 uncovers Rocky ledges or coral reef Coral reef, which covers and 22 uncovers
Qualifying Terms Supplementary national symbols: ah–bf 30 f Fine only used in 31 m Medium relation to sand 32 c Coarse 33 bk Broken 34 sy Sticky 35 so Soft 36 sf Stiff 37 v Volcanic vol
Rocky ledges or coral ca Calcareous Ca 38 reef
39 h Hard
48 Nature of the Seabed J
No. INT Description NOAA NGA Other NGA ECDIS
Supplementary National Abbreviations a Ground Grd b Ooze Oz c Marl Ml d Shingle Sn f Chalk Ck g Quartz Qz h Schist Sch i Coral head Co Hd j Madrepores Mds k Volcanic ash Vol Ash l Lava La m Pumice Pm n Tufa T o Scoriae Sc p Cinders Cn q Manganese Mn r Oysters Oys s Mussels Ms t Sponge Spg u Kelp K v Grass Grs w Sea-tangle Stg x Spicules Spi y Foraminifera Fr z Globigerina Gl aa Diatoms Di ab Radiolaria Rd ac Pteropods Pt ad Polyzoa Po ae Cirripedia Cir af Fucus Fu
49 J Nature of the Seabed
No. INT Description NOAA NGA Other NGA ECDIS
ag Mattes Ma ah Small sml ai Large lrg aj Rotten rt ak Streaky str al Speckled spk am Gritty gty an Decayed dec ao Flinty fl y ap Glacial glac aq Tenacious ten ar White wh as Black bl; bk at Violet vi au Blue bu av Green gn aw Yellow yl ax Orange or ay Red rd az Brown br
ba Chocolate ch
bb Gray gy
bc Light lt
bd Dark dk
be Varied vard
bf Uneven unev
50 Rocks, Wrecks, Obstructions, Aquaculture K
No. INT Description NOAA NGA Other NGA ECDIS
General Obstruction, depth not stated Obstruction which covers and uncovers Danger line: A danger line draws Underwater hazard with attention to a danger which depth of 20 meters or would not stand out clearly less enough if represented solely by 1 its symbol (e.g. isolated rock) Isolated danger of depth or delimits an area containing less than the safety numerous dangers, through contour which it is unsafe to navigate
Foul area, not safe for navigation
Swept sounding, less 21 Rk 35 Rk 4 Obstn 6 than or equal to safety depth 2 Swept by wire drag or diver (157) 46 Wk 46 Wk Swept sounding, greater (1937) than safety depth Depth unknown, but estimated ECDIS displays safe clearance depths in the same to have a safe clearance to the 4 4 3 6 Wk 35 Rk 6 Obstn manner as known depths. depth shown Rocks
Plane of Reference for Heights → H Plane of Reference for Depths → H
Land as a point at small scale Rock (islet) which does not 25 10 (21) cover, height above height datum (4 m) Land as an area, with an 8 m elevation or control point
Rock which covers and uncovers or is awash at low water
(06) Underwater hazard Rock which covers and uncov- Uncov 1m which covers and uncov- 11 ()2 4 ers, height above chart datum ()2 ers with drying height ()06 Uncov 1m Isolated danger of depth less than the safety contour Rock which covers and uncovers or is awash at low water
Rock awash at the level of chart Underwater hazard 12 datum which covers and uncovers Isolated danger of depth less than the safety contour
51 K Rocks, Wrecks, Obstructions, Aquaculture
No. INT Description NOAA NGA Other NGA ECDIS
Dangerous underwater Underwater rock of unknown rock of uncertain depth 13 depth, dangerous to surface navigation Isolated danger of depth less than the safety contour
Underwater hazard with Underwater rock of known depth; 27 Rk a depth of 20 meters 14.1 inside the corresponding depth 12 Rk 21 or less area R Underwater hazard with depth greater than 20 meters
Underwater rock of known depth; 42 Rk outside the corresponding depth 5 Rk Isolated danger of depth 14.2 area, dangerous to surface 5 less than the safety navigation R contour
Underwater hazard with a depth of 20 meters Underwater rock of known or less 35 +(35) 15 depth, not dangerous to surface 35Rk R. navigation Underwater hazard with depth greater than 20 meters Dangerous underwater rock of uncertain depth Obstruction, depth not stated Isolated danger of depth less than the safety contour
Safe clearance shoaler 16 Coral reef which is always Co covered Ree ne than safety contour 31 f li
12 Safe clearance deeper 8 than safety contour
Safe clearance deeper 256 than 20 meters
B re ake Overfalls, tide rips; rs West Breaker eddies; breakwaters as 17 Breakers Br PA point, line, and area
52 Rocks, Wrecks, Obstructions, Aquaculture K
No. INT Description NOAA NGA Other NGA ECDIS
Wrecks and Fouls
Plane of Reference for Depths → H
Mast (1.2) Wreck, hull never covers, on Wreck, always dry, with 20 Hk Hk 1.2 m Wk large scale charts height shown
Wreck, covers and Wk uncovers Mast (1 ) 2 Wreck, covers and uncovers, on Wk 21 Hk Wk large scale charts Wk
Wk Distributed remains of wreck
Submerged wreck with depth of 20 meters or less
Submerged wreck with 5 6 Submerged wreck, depth known, depth greater than 20 22 2 5 9 on large scale charts Wk meters
Distributed remains of wreck
Wk Submerged wreck with Submerged wreck, depth depth less than the Hk Wk 23 unknown, on large scale charts safety contour or depth Wk unknown
Wk
Wreck showing any portion of Wk 24 hull or superstructure at level of Wreck showing any chart datum Wk portion of hull or Wk superstructure at level of chart datum Wreck of which the mast(s) only Mast (10ft) Masts 25 are visible at chart datum Funnel
Underwater hazard with depth of 20 meters or less Underwater hazard with Wreck, least depth known by 1 52 Wk (11) depth greater than 20 26 sounding only meters Isolated danger of depth less than the safety contour
53 K Rocks, Wrecks, Obstructions, Aquaculture
No. INT Description NOAA NGA Other NGA ECDIS
Swept sounding for underwater hazard less than safety depth Swept sounding for Wreck, least depth known, swept 27 25 underwater hazard by wire drag or diver greater than or equal to safety depth Isolated danger of depth less than the safety contour Dangerous wreck, depth unknown Dangerous wreck, depth 28 unknown Isolated danger of depth less than the safety contour Sunken wreck, not dangerous to Non-dangerous wreck, 29 surface navigation depth unknown Underwater hazard with safe clearance of 20 meters or less Wreck, least depth unknown, but Underwater hazard with 30 considered to have a safe 4 safe clearance greater clearance to the depth shown than 20 meters Isolated danger of depth less than the safety contour Foul area of seabed safe for navigation but not for anchoring 31.1 (25) Foul ground, not dangerous to surface navigation, but to be Foul ground avoided by vessels anchoring, trawling, etc. (e.g. remains of wreck, cleared platform)
31.2 Distributed remains of wreck
Obstructions and Aquaculture
Plane of Reference for Depths → H Kelp, Seaweed → J Underwater Installations → L
Obstruction, depth not stated Isolated danger of depth less than the safety 40 Obstruction, depth unknown contour
Safe clearance shoaler than safety contour
54 Rocks, Wrecks, Obstructions, Aquaculture K
No. INT Description NOAA NGA Other NGA ECDIS
Underwater hazard with depth of 20 meters or less Underwater hazard with 41 Obstruction, least depth known depth greater than 20 by sounding only meters Isolated danger of depth less than the safety contour
Less than or equal to safety depth swept depth Greater than safety depth
Method of depth measurement is obtained by cursor pick Obstruction, least depth known, Underwater hazard with 42 swept by wire drag or diver known by depth of 20 meters or
diver less or other Underwater hazard with means depth greater than 20 meters
Isolated danger of depth less than the safety contour Obstruction, depth not Stumps of posts or piles, wholly stated Piles 43.1 submerged Subm piles Underwater hazard with depth of 20 meters or Subm piles Well less Submerged pile, stake, snag, or 43.2 Stakes Deadhead Isolated danger of depth stump (with exact position) less than the safety Snags Stump contour
Fish stakes as a point
Fsh 44.1 Fishing stakes stks Fish stakes as an area
Fish trap, fish weir, Fish trap, Fish weir, Tunny nets 44.2 Fish trap tunny net as a point
Fish trap, fish weir, tunny Fish trap area, Tunny nets area 45 net as an area
55 K Rocks, Wrecks, Obstructions, Aquaculture
No. INT Description NOAA NGA Other NGA ECDIS
Isolated danger of depth less than the safety contour Obstn (actual 46.1 Fish haven Fish Haven shape) Safe clearance shoaler than safety contour
Underwater hazard with depth of 20 meters or less
Underwater hazard with depth greater than 20 meters
Isolated danger of depth less than the safety
Obstn contour 46.2 Fish haven with minimum depth Fish Haven (auth min 42ft) Safe clearance shoaler than safety contour
12 Safe clearance deeper 8 than safety contour
Safe clearance deeper 256 than 20 meters
47 Shellfi sh beds Oys Marine farm as a point
Marine farm (on large scale Marine Farm 48.1 charts)
Obstn Marine farm as an area (Marine Farm) 48.2 Marine farm (on small scale charts) Marine Farm
56 Rocks, Wrecks, Obstructions, Aquaculture K
No. INT Description NOAA NGA Other NGA ECDIS
Supplementary National Symbols a Rock awash (height unknown)
Shoal sounding on isolated rock Rks 5 Rk 21 b or rocks
Sunken wreck covered 20 to c 30 meters
d Submarine volcano Sub vol
e Discolored water Discol water
Sunken danger with depth 21 Rk 4 35 Rk 4 f cleared (swept) by wire drag 6 6 Obstn g Reef of unknown extent Reef
Coral reef, detached (uncovers h at sounding datum) Co
Subm Crib i Submerged crib Crib
j Crib, duck blind (above water) Duck Blind Crib
k Submerged duck blind Duck Blind
Subm l Submerged platform platform Platform
Coral reef which covers and m uncovers
n Sinkers
Foul Foul area, foul with rocks or o wreckage, dangerous to Wks navigation Wreckage
Unexploded p Unexploded ordnance Ordnance
q Float Float
Stumps of posts or piles, which r Subm cover and uncover piles
57 L Offshore Installations
No. INT Description NOAA NGA Other NGA ECDIS
General
Areas, Limits → N
Well 348 Well Area to be navigated CORRIB 346 1 Ekofisk Oilfield Name of oilfi eld or gasfi eld GAS FIELD with caution, name is obtained by cursor pick Well 334 334 Well
Offshore platform, name 2 Platform with designation/name is obtained by cursor “Name” pick
Area where entry is Limit of safety zone around prohibited or restricted or 3 offshore installation to be avoided, with other cautions
Cautionary area, Limit of development area 4 navigate with caution
Wind turbine, fl oating wind Wind motor visually turbine, vertical clearance under Fl.Y 5.1 conspicuous blade
Offshore wind farm 5.2 Wind farm (offshore) Offshore wind farm (fl oating)
6 Wave farm Wave farm
Platforms and Moorings
Mooring Buoys → Q
Production platform, Platform, Offshore platform 10 Oil derrick
Conspicuous fl are stack Flare stack (at sea) 11 on offshore platform
58 Offshore Installations L
No. INT Description NOAA NGA Other NGA ECDIS
Single Point Mooring (SPM), 12 including Single Anchor Leg Mooring (SALM), Articulated “Name” Loading Column (ALC)
Observation/research platform 13 “Name” “Name” (with name) “Name” Offshore platform, name and status of disused is Disused platform with obtained by cursor pick (disused) 14 Ru Z-44 superstructure removed (ru)
“Name” Artifi cial island Artificial Island 15 (Mukluk)
Single Buoy Mooring (SBM), Oil Installation buoy and mooring buoy, simplifi ed 16 or gas installation buoy including Catenary Anchor Leg Mooring Installation buoy, paper (CALM) chart
Tanker 17 Moored storage tanker Offshore platform
18 Mooring ground tackle Ground tackle
Underwater Installations Supplementary national symbol: a
Plane of Reference for Depths → H Obstructions → K
Underwater hazard with depth of 20 meters or Well less 15 Prod Well (cov 21ft) Underwater hazard with 20 Submerged production well Well Well depth greater than 20 (cov 83ft) Prod Well meters Isolated danger of depth less than the safety contour Isolated danger of depth Suspended well, depth over Pipe less than the safety 21.1 wellhead unknown contour Underwater hazard with depth of 20 meters or less Pipe Underwater hazard with Suspended well, with depth over (cov 24ft) depth greater than 20 21.2 wellhead Pipe meters (cov 92ft) Isolated danger of depth less than the safety contour Isolated danger of depth Wellhead with height above the Well less than the safety 21.3 sea fl oor (5.7) contour
59 L Offshore Installations
No. INT Description NOAA NGA Other NGA ECDIS
Foul area of seabed safe 22 Site of cleared platform for navigation but not for anchoring Obstruction in the water Pipe Above-water wellhead (lit or Pipe 23 Pipe which is always above (18) unlit) (2 ) 4 water level
24 Underwater turbine
Underwater turbine or subsurface ODAS Subsurface Ocean(ographic) ODAS 25 Data Acquisition System (ODAS)
Submarine Cables
30.1 Submarine cable Submarine cable
Submarine cable area Cable Area 30.2 †
31.1 Submarine power cable Submarine cable area
31.2 Submarine power cable area
Status of disused is Disused submarine cable 32 obtained by cursor pick
Submarine Pipelines
Supply pipeline: unspecifi ed, oil, Oil, gas pipeline, 40.1 gas, chemicals, water submerged or on land
Submarine pipeline area Supply pipeline area: unspeci- Pipeline Area with potentially 40.2 fi ed, oil, gas, chemicals, water † dangerous contents
60 Offshore Installations L
No. INT Description NOAA NGA Other NGA ECDIS
Outfall and intake: unspecifi ed, Water pipeline, sewer, 41.1 water, sewer, outfall, intake etc.
Pipeline Area Submarine pipeline area Outfall and intake area: unspeci- with generally 41.2 fi ed, water, sewer, outfall, intake non-dangerous contents
Nominal depth of buried Buried pipeline/pipe (with pipeline is obtained by 42.1 nominal depth to which buried) cursor pick
42.2 Pipeline tunnel Pipeline tunnel
Underwater hazard with depth of 20 meters or less 43 Diffuser, Crib Isolated danger of depth less than the safety contour
Status of disused is Disused pipeline/pipe 44 obtained by cursor pick
Supplementary National Symbols
a Submerged well (buoyed) Well Well Well
PWI Potable water intake b Depth over Crib Crib 17 ft
61 M Tracks, Routes
No. INT Description NOAA NGA Other NGA ECDIS
Tracks Supplementary national symbols: a–c
Tracks Marked by Lights → P Leading Beacons → Q
Leading line bearing a non-regulated, recommended track
Leading line (solid line is the Direction not encoded 1 track to be followed, ‡ means Lights in line 090° 270 deg “in line”) One-way
270 deg Two-way
Transit (other than leading line), Beacons in line 090° Bns in line 270.5° 270 deg Clearing line; transit line 2 clearing line
Non-regulated, recommended track based on fi xed marks
Direction not encoded 3 Recommended track based on a Lights in line 090° system of fi xed marks 90 deg One-way
270 deg Two-way
Non-regulated, recommended track not based on fi xed marks
Direction not encoded 4 Recommended track not based on a system of fi xed marks 90 deg One-way
270 deg Two-way
Based on fi xed marks, one-way One-way track and DW track 90 deg Non-regulated 5.1 based on a system of fi xed recommended track marks Deep water route
Not based on fi xed marks, one-way
One-way track and DW track 90 deg Non-regulated 5.2 not based on a system of fi xed recommended track marks Deep water route centerline
Recommended track with 7 m If encoded, the shoalest depth range 6 maximum authorized (or value along the track is obtained by recommended) draft stated 73 m cursor pick
62 Tracks, Routes M
No. INT Description NOAA NGA Other NGA ECDIS
Routing Measures Supplementary national symbols: d–e
Basic Symbols
Traffi c direction in a Established (mandatory) one-way lane of a traffi c 10 direction of traffi c fl ow separation scheme
Single traffi c direction Recommended direction of traffi c in a two-way route part 11 fl ow of a traffi c-separation scheme Separation line (large scale, Traffi c separation line 12 small scale)
13 Separation zone Traffi c separation zone
Limit of restricted routing measure (e.g. Inshore Traffi c RESTRICTED AREA 14 Zone (ITZ), Area to be Avoided (ATBA))
Traffi c separation Limit of routing measure 15 scheme boundary
Traffi c precautionary area as a point
16 Precautionary area
Traffi c precautionary area as an area
Archipelagic Sea Lane (ASL); Axis and boundary of axis line and limit beyond which 17 archipelagic sea lane vessels shall not navigate
Fairway designated by regulatory 7.3m authority with minimum depth Fairway, depth is 18 SAFETY FAIRWAY 166.200 (see note A) Fairway designated by regulatory obtained by cursor pick <7.3m> authority with maximum authorized draft
63 M Tracks, Routes
Examples of Routing Measures on Paper/Raster Charts
Inshore Traffic Zone 20.1 25.1 Inshore Traffic Zone
25.1
FAIRWAY 10.5m (2011) 18 Precautionary 23 21 Area 20.1 24 20.1 RW
28.1 27.1
29.1 DW
Area to be RW Avoided (see Note) 26.1 20.2
DW
DW 27.3
RW 29.2 26.1
DW 22.5m
28.2 22 26.2 27.2 20.3 Inshore traffic zone
25.2 DW DW
DW 27.3 27.3 20.1 27.3
64 Tracks, Routes M
No.
Examples of Routing Measures
18 Safety fairway
20.1 Traffi c Separation Scheme (TSS), traffi c separated by separation zone
20.2 Traffi c Separation Scheme, traffi c separated by natural obstructions
20.3 Traffi c Separation Scheme, with outer separation zone separating traffi c using scheme from traffi c not using it
21 Traffi c Separation Scheme, roundabout with separation zone
22 Traffi c Separation Scheme, with “crossing gates”
23 Traffi c Separation Scheme crossing, without designated precautionary area
24 Precautionary area
25.1 Inshore Traffi c Zone (ITZ), with defi ned end limits
25.2 Inshore Traffi c Zone, without defi ned end limits
26.1 Recommended direction of traffi c fl ow, between traffi c separation schemes
26.2 Recommended direction of traffi c fl ow, for ships not needing a deep water route
27.1 Deep water route (DW), as part of one-way traffi c lane
27.2 Two-way deep water route, with minimum depth stated
27.3 Deep water route, centerline as recommended one-way or two-way track
28.1 Recommended route, one-way and two-way (often marked by centerline buoys)
28.2 Two-way route, with one-way sections
29.1 Area to be Avoided (ATBA), around navigational aid
29.2 Area to be Avoided, e.g. because of danger of stranding
65 M Tracks, Routes
Examples of Routing Measures in ECDIS
20.1 25.1
29.1 25.1
18 23 21 20.1 20.1
24 28.1
27.1 26.1 20.2
27.3
26.1 29.2
28.2 22 26.2 27.2 20.3
25.2
27.3 27.3 27.3 20.1
66 Tracks, Routes M
No. INT Description NOAA NGA Other NGA ECDIS
Radar Surveillance Systems
30 Radar surveillance station Ra Radar station
31 Radar range Radar range
32.1 Radar reference line Ra Ra 270 deg Radar line
Non-regulated recommended track based on fi xed marks
Direction not encoded 32.2 Radar reference line coinciding with a leading line 90 deg One-way
270 deg Two-way
Radio Reporting Points
Nr 13 Radio calling-in point for traffi c in one direction ch s74 only
Radio reporting (calling-in or Nr 13 Radio calling-in point for way) points showing direction(s) ch s74 traffi c in both directions 40.1 of vessel movement with desig- VHF 80 nation (if any) and VHF-channel
Nr 13 Radio calling-in point, ch s74 direction not encoded
Nr 13 Radio calling-in point for ch s74 traffi c in one direction only
Nr 13 ch s74 Radio calling-in point for 40.2 Radio reporting line traffi c in both directions
Nr 13 ch s74 Radio calling-in point, direction not encoded
67 M Tracks, Routes
No. INT Description NOAA NGA Other NGA ECDIS
Ferries
Ferry Ferry 50 Ferry Ferry route
51 Cable Ferry Cable Ferry Cable ferry route
Supplementary National Symbols
Recommended track for deep a draft vessels (track not defi ned DW by fi xed marks)
Depth is shown where it has b been obtained by the cognizant DW 83ft DW 76ft authority
c Alternate course
68 Areas, Limits N
No. INT Description NOAA NGA Other NGA ECDIS
General *
Dredged and Swept Areas → I Submarine Cables, Submarine Pipelines → L Tracks, Routes → M
Maritime limit in general, usually implying permanent physical 1.1 obstructions (tint band for emphasis) Caution area, a specifi c Maritime limit in general, usually caution note applies implying no permanent physical 1.2 obstructions (tint band for emphasis)
Limit of restricted area Area where entry is 2.1 RESTRICTED AREA prohibited or restricted or Limit of restricted area, with tint to be avoided band for emphasis
Area where entry is prohibited or restricted or to be avoided, with other PROHIBITED AREA cautions Limit of area into which entry is 2.2 prohibited PROHIBITED AREA Area where entry is prohibited or restricted or † to be avoided, with other information
Anchorages, Anchorage Areas
Anchorage area as a Reported anchorage (no defi ned point at small scale, or 10 limits) anchor points of mooring trot at large scale
Nr 6 11.1 Anchor berths 14 6 No 1 Anchor berth
3 Anchor berths with swinging Radius of swing circle is obtained by 11.2 circle D17 cursor pick
* ECDIS represents many types of area limits with just a few different symbols. Information about the type of area and its associated restrictions or prohibitions may be obtained by cursor pick.
69 N Areas, Limits
No. INT Description NOAA NGA Other NGA ECDIS
12.1 Anchorage area in general Anchorage
Numbered anchorage area Anchorage 12.2 No. 1
Neufeld 12.3 Name Named anchorage area Anchorage
Deep water anchorage area, Anchorage area for deep draft DW 12.4 Anchorage vessels Type of anchorage area is obtained by cursor 12.5 Tanker anchorage area Tanker Anchorage pick
Anchorage area for periods up 12.6 to 24 hours
12.7 Explosives anchorage area EXPLOSIVES ANCHORAGE
QUAR ANCH Quarantine 12.8 Quarantine anchorage area Anchorage QUARANTINE ANCHORAGE
12.9 Reserved anchorage area
Note: Anchors as part of the limit symbol are not shown for small areas. Other types of anchorage areas may be shown.
SEAPLANE 13 Seaplane operating area LANDING Seaplane landing area AREA
Type of anchorage area 14 Anchorage for seaplanes is obtained by cursor pick
70 Areas, Limits N
No. INT Description NOAA NGA Other NGA ECDIS
Restricted Areas Supplementary national symbols: d, e, g
Area where anchoring is prohibited or restricted
ANCH ANCH PROHIBITED PROHIB Area where anchoring is 20 Anchoring prohibited prohibited or restricted, with other cautions
Area where anchoring is prohibited or restricted, with other information
Area where fi shing or trawling is prohibited or restricted
FISH PROHIB Area where fi shing or trawling is prohibited 21.1 Fishing prohibited FISH PROHIBITED or restricted, with other cautions
Area where fi shing or trawling is prohibited or restricted, with other information
71 N Areas, Limits
No. INT Description NOAA NGA Other NGA ECDIS
Area where diving is Diving prohibited 21.2 prohibited
22.1 Bird sanctuary
Environmentally Sensitive Sea Area (ESSA)
22.2 Seal sanctuary
Area with minor restric- tions or information notices
Non-specifi c nature reserve, 22.3 National parks, Marine Reserves (MR)
Particularly Sensitive Sea Area PSSA 22.4 (PSSA)
72 Areas, Limits N
No. INT Description NOAA NGA Other NGA ECDIS
Explosives or chemical Explosives Explosives dumping ground, EXPLOSIVES dumping ground as a 23.1 Dumping individual mine or explosive DUMPING AREA Ground point
Explosives dumping ground EXPLOSIVES DUMPING 23.2 (disused), Foul (explosives) AREA DISUSED Explosives or chemical dumping ground as an area Dumping ground for chemical Dump Site Dumping Ground 24 waste
DEGAUSSING DEGAUSSING 25 Degaussing range (DG range) RANGE RANGE Degaussing area
If a speed restriction exists, the speed Maximum speed 27 limit is obtained by cursor pick
Military Practice Areas
30 Firing practice area Restricted area
Area where entry is Prohibited Entry Military restricted area, entry PROHIBITED prohibited or restricted or Area 31 Prohibited prohibited AREA to be avoided, with other † cautions
Mine-laying (and counter- 32 measures) practice area Restricted area 33 Submarine transit lane and exercise area SUBMARINE EXERCISE AREA
34 Minefield Minefi eld Minefi eld (see note)
International Boundaries and National Limits Supplementary national symbols: a, f, h
CANADA 40 International boundary on land Jurisdiction boundary UNITED STATES
73 N Areas, Limits
No. INT Description NOAA NGA Other NGA ECDIS
CANADA 41 International maritime boundary Jurisdiction boundary UNITED STATES
Straight territorial sea baseline Straight territorial sea 42 with base point baseline
Seaward limit of territorial sea Territorial sea 43 TERRITORIAL SEA 44 Seaward limit of contiguous zone Contiguous zone
45 Limits of fi shery zones Limits of fi shery zone
46 Continental Shelf Limit of continental shelf Continental shelf area Limit of Exclusive Economic Exclusive economic 47 Zone (EEZ) zone 48 Customs limit Custom regulations zone
49 Harbor limit Harbor Limit Harbor area, symbolized Harbor Limit
Various Limits Supplementary national symbols: a, b
(2012) Limit of fast ice, Ice front (with 60.1 date) Continuous pattern for an ice area (glacier, etc.) (2012) Limit of sea ice (pack ice) 60.2 seasonal (with date)
Floating hazard
Floating barrier, including log Boom, ice boom 61 ponds, security barriers, ice Log boom booms, shark nets Boom, ice boom, fl oating obstruction, log pond
62.1 Spoil ground Spoil Area
HO information note
62.2 Spoil ground (disused) Spoil Area Discontinued
74 Areas, Limits N
No. INT Description NOAA NGA Other NGA ECDIS
63 Extraction Area Extraction (dredging) area Dredging area
64 Cargo transhipment area
HO information note
65 Incineration area † Supplementary National Symbols
a COLREGS demarcation line
Limit of fi shing area (fi sh trap b areas)
c Dumping ground Dumping Ground
Disposal Area 92 d Dumping area (Dump site) Depths from survey of 2010 85
Reservation line f (Options)
g Dump site Dump Site
h Three Nautical Mile Line THREE NAUTICAL MILE LINE
i No Discharge Zone NO-DISCHARGE ZONE
75 P Lights
No. INT Description NOAA NGA Other NGA ECDIS
Light Structures and Major Floating Lights
Minor Light Floats → Q30, 31
Major light, minor light, light, Light, lighthouse, Lt LtHo 1 lighthouse paper chart
PLATFORM Lighted offshore Lighted offshore platform 2 (lighted) platform, paper chart
Marker Lighted beacon tower, Lighted beacon tower 3 (lighted) paper chart
4 Lighted beacon Lighted beacon, paper chart Articulated light, buoyant 5 beacon, resilient beacon Art
Major fl oating light (light vessel, Light vessel, paper chart 6 major light fl oat, LANBY)
Note: Minor lights, fi xed and fl oating, usually conform to IALA Maritime Buoyage System characteristics.
Navigational lights on landmarks 7 or other structures
8 Important light off chart limits
76 Lights P
Abbreviation Period shown No. Class of light Illustration ECDIS INT NOAA Light Characters
Light Characters on Light Buoys → Q
F 10.1 F F Fixed
Occulting (total duration of light longer than total duration of darkness) Oc Oc Oc Single-occulting
10.2 Oc(2) Oc (2) Group-occulting Oc (2) Example Oc(2+3) Oc (2+3) Oc (2+3) Composite group-occulting Example Isophase (duration of light and darkness equal) 10.3 Iso Iso Iso Isophase
Flashing (total duration of light shorter than total duration of darkness)
Fl Fl Single-fl ashing Fl
10.4 Fl(3) Fl (3) Fl (3) Group-fl ashing Example Fl(2+1) Fl (2+1) Fl (2+1) Composite group-fl ashing Example L FL When text for lights is displayed, LFl L Fl Long-fl ashing (fl ash 2s or longer) 10.5 ECDIS uses INT abbreviations. Quick (repetition rate of 50 to 79 - usually either 50 or 60 - fl ashes per minute) Q Q Q Continuous quick
10.6 Q(3) Q(3) Q (3) Group quick Example IQ IQ IQ Interrupted quick
Very quick (repetition rate of 80 to 159 - usually either 100 or 120 - fl ashes per minute) VQ VQ VQ Continuous very quick
10.7 VQ(3) VQ(3) VQ (3) Group very quick Example
IVQ IVQ Interrupted very quick
Ultra quick (repetition rate of 160 or more - usually 240 to 300 - fl ashes per minute)
10.8 UQ UQ Continuous ultra quick
IUQ IUQ Interrupted ultra quick
77 P Lights
Abbreviation Period shown No. Class of light Illustration ECDIS INT NOAA Mo(K) Mo (K) Mo (K) Morse Code 10.9 Example
F Fl When text for lights is displayed, FFl F Fl Fixed and fl ashing 10.10 ECDIS uses INT abbreviations.
WRWRWR Al WR 10.11 Al.WR AlWR Alternating
No. INT Description NOAA NGA Other NGA ECDIS
White (only on sector and 11.1 W Colors of lights shown alternating lights) Default light symbol if no on standard charts color is encoded or color 11.2 R Red is other than red, green, white, yellow, amber, or orange 11.3 G Green
11.4 Bu Blue on multicolored charts Red
11.5 Vi Violet Green
White, yellow, amber or 11.6 Y Yellow on multicolored charts orange at sector lights 11.7 YOrOrange Sector lights 11.8 YAmAmber
Period Period in seconds and tenths of 12 2.5s 90s a second Elevation
Plane of reference for Heights → H Tidal Levels → H Elevation of light given in meters 36ft 13 12m or feet When text for lights is displayed, ECDIS uses INT abbreviations. Range
15M Light with single range 10M 15/10M Light with two different ranges only lesser of two 15/10M 14 ranges is charted 7M 15-7M Light with three or more ranges only least of three ranges is charted Note: Charted ranges are nominal ranges given in Nautical Miles.
78 Lights P
No. INT Description NOAA NGA Other NGA ECDIS
Disposition
(hor) Horizontally disposed
Disposition of light is obtained by (vert) Vertically disposed 15 cursor pick
( ) ( ) 3 lights disposed in the shape of a triangle Example of a Full Light Description
INT Example NOAA Example NGA Example FlR15s21m11M
ft
Fl(3) Class of light: group fl ashing repeating a group of Fl(3) Class of light: group fl ashing repeating a group of The descriptions of non-sector lights are shown three fl ashes three fl ashes in ECDIS when the display of text is turned on, as shown above. (The aid to navigation or other struc- WRG Colors: white, red, green, exhibiting the different WRG Colors: white, red, green, exhibiting the different ture that is always shown attached to a light fl are in colors in defi ned sections colors in defi ned sections ECDIS is not depicted here.)
15s Period: the time taken to exhibit one full sequence of 15s Period: the time taken to exhibit one full sequence of Sector lights (as described in the INT, NOAA and three fl ashes and eclipses: 15 seconds three fl ashes and eclipses: 15 seconds NGA examples at left) are depicted graphically in 16 ECDIS, as shown below and in P40. 21m Elevation of focal plane above datum: 21 meters Elevation of light: The description of a sector light or 21ft 21 feet any other type of light may always be 21m 21 meters obtained by cursor pick.
15-11M Nominal range: white 15M, green 11M, red between Nominal range: 15 and 11M 11M shortest range of all the lights is 11M 15-11M white 15M, green 11M, red between 15 and 11M
79 P Lights
No. INT Description NOAA NGA Other NGA ECDIS
Lights Marking Fairways
Leading Lights and Lights in Line
Leading lights with sectors
Leading lights with leading line 225.3 deg (solid line is the track to be 20.1 followed) and arcs of visibility Lts in line 270° Bearing given in degrees and tenths of a degree
Leading lights (≠ means lights in line) Oc OcR 270 deg 20.2 Leading lights Bearing given in degrees and tenths of a degree
Leading lights on small scale 20.3 charts
FlG FlG 270 deg
Lights in line, marking the sides Lights in line, marking 21 of a channel the sides of a channel 2FlR 270 deg
22 Rear Lt or Upper Lt Rear or upper light
23 Front Lt or Lower Lt Front or lower light
80 Lights P
No. INT Description NOAA NGA Other NGA ECDIS
Direction Lights
Directional light with sector Direction light with narrow RED sector and course to be followed, 30.1 fl anked by darkness or 269 deg unintensifi ed light
GREEN
Directional light without sector
209 deg Direction light with course to be 30.2 followed, sector(s) uncharted 165.5 deg
Fl(2)5s11M Oc12s6M
Direction light with narrow fairway sector fl anked by light 30.3 sectors of different character on standard charts
Light, directional
Direction light with narrow fairway sector fl anked by light 30.4 sectors of different character on multicolored charts
Moiré effect light (day and night), FY 270 deg Category of light as 31 arrows show when course moiré effect is obtained alteration needed by cursor pick
Note: Quoted bearings are always from seaward.
81 P Lights
No. INT Description NOAA NGA Other NGA ECDIS
Sector Lights
40.1 Sector light on standard charts
Light, sector
Sector light on multicolored 40.2 charts
Sector lights on standard charts, 41.1 the white sector limits marking the sides of the fairway
Sector lights on multicolored 41.2 charts, the white sector limits marking the sides of the fairway
82 Lights P
No. INT Description NOAA NGA Other NGA ECDIS
Light, danger
Main light visible all-round with 42 red subsidiary light seen over RED danger
Light, obscured
All-round light with obscured OBSC 43 sector
Light with arc of visibility Light, restricted 44 deliberately restricted
45 Light with faint sector Light, faint
83 P Lights
No. INT Description NOAA NGA Other NGA ECDIS
Intensifi ed light visibility is obtained by cursor pick
46 Light with intensifi ed sector Light, intensifi ed
9
Lights with Limited Times of Exhibition
Lights exhibited only when spe- 50 cially needed (for fi shing vessels, Occas F R (occas) ferries) and some private lights
Daytime light (charted only where the character shown by F Bu 9m 6M 51 day differs from that shown at (F by day) night)
Fog light (exhibited only in fog, or Status and condition of light is 52 character changes in fog) obtained by cursor pick
Unwatched (unmanned) light with no standby or emergency 53 † arrangements
54 (temp) Temporary
55 (exting) Extinguished Special Lights
Flare Stack (as sea) → L Flare Stack (on land) → E Signal Stations → T
AeroAlFlWG7.5s11M 60 Aero light (may be unreliable) AERO Al WG 7.5s Light AERO 108m 13M AERO
Air obstruction light of high 61.1 intensity (e.g. on radio mast) AERO F R 77m 11M † AeroFR313m11M Conspicuous mast with light Air obstruction light of low TR (RLts) 61.2 intensity (e.g. on radio mast)
Category of light is obtained by cursor Fog Det Lt Fog detector light 62 pick
Floodlit, fl oodlighting of a (Illuminated) Floodlight 63 structure
84 Lights P
No. INT Description NOAA NGA Other NGA ECDIS
64 Strip light Strip light
Private light other than one Status of private is obtained by cursor 65 (priv) exhibited occasionally Priv F R (priv) Priv maintd pick
66 (sync) Synchronized light
Supplementary National Symbols
a Riprap surrounding light
S-L Fl b Short-Long Flashing
G-S Fl c Group-Short Flashing
d Fixed and Group Flashing F Gp Fl
e Unmanned light-vessel; light fl oat FLOAT
LANBY, superbuoy as f navigational aid
85 Simplifi ed and Traditional “Paper Chart” Symbols ECDIS
ECDIS can be set to display aids to navigation with either traditional “paper chart” or Fixed Marks simplifi ed symbols. The two symbol sets are shown below. Some ECDIS color fi ll the Paper Chart Simplifi ed Simplifi ed Symbol Name paper chart buoy shapes, but this is not required by IHO ECDIS portrayal specifi ca- tions. * Cardinal beacon, north Floating Marks
Paper Chart Simplifi ed Simplifi ed Symbol Name * Cardinal beacon, east
Cardinal beacon, south * Cardinal buoy, north *
* Cardinal buoy, east * Cardinal beacon, west
Default symbol for a beacon (used when no defi ning * Cardinal buoy, south attributes have been encoded in the ENC)
Isolated danger beacon * Cardinal buoy, west
Default symbol for buoy (used when no defi ning attributes Major lateral beacon, red have been encoded in the ENC) Major lateral beacon, green * Isolated danger buoy
Conical lateral buoy, green Minor lateral beacon, green
Conical lateral buoy, red Major safe water beacon
Can shape lateral buoy, green Minor safe water beacon
Can shape lateral buoy, red Major special purpose beacon
Minor special purpose beacon
Installation buoy and mooring buoy * Paper chart symbols display various buoy or beacon shape symbols in conjunction with the topmark. Simplifi ed portrayal only displays the topmark. ** Several different paper chart symbols correspond to this simplifi ed symbol.
** Safe water buoy Day Marks Special purpose buoy, spherical or barrel shaped, or default symbol for special purpose buoy Paper Chart Simplifi ed Simplifi ed Symbol Name Special purpose TSS buoy marking the starboard side of the traffi c lane Square or rectangular daymark Special purpose TSS buoy marking the port side of the traffi c lane
Special purpose ice buoy or spar or pillar shaped buoy Triangular daymark, point up
Super-buoy ODAS & LANBY Triangular daymark, point down
Light fl oat Retro refl ector Light vessel
86 Buoys, Beacons Q
No. INT Description NOAA NGA Other NGA ECDIS
Buoys and Beacons
IALA Maritime Buoyage System, which includes Beacons → Q 130
Default symbol for buoy, Default buoy symbol if no other paper chart defi ning attribution is provided Default symbol for buoy, simplifi ed Default symbol for a Default beacon symbol if no beacon, paper chart other defi ning attribution is provided Default symbol for a beacon, simplifi ed
ECDIS shows the position of buoys and beacons with a circle at the bottom of paper chart symbols. Position of buoy or beacon 1 For simplifi ed symbols, the position of the aid corresponds with the center of the symbol.
Colors of Buoys and Beacon Topmarks Supplementary national symbols: p
Abbreviations for Colors → P
Green and black (symbols fi lled G 2 black)
Single color other than green R 3 and black
Multiple colors in horizontal RG 4 bands, the color sequence is from top to bottom Multiple colors in vertical or RW 5 diagonal stripes, the darker color is given fi rst
Retrorefl ecting material Retro refl ector 6 Note: Retrorefl ecting material may be fi tted to some unlit marks. Charts do not usually show it. Under IALA Recommendations, black bands will appear blue under a spotlight. Lighted Marks
Marks with Fog Signals → R
Lighted marks on standard Fl G Fl R Fl R 7 charts R
Lighted marks on multicolored 8 charts
87 Q Buoys, Beacons
No. INT Description NOAA NGA Other NGA ECDIS
Topmarks and Radar Refl ectors
For Application of Topmarks within the IALA System → Q 130 For other topmarks (special purpose buoys and beacons) → Q
Paper chart symbols for topmarks (on the left, below) are always displayed above a buoy or beacon shape symbol, as in Q 10 and Q 11. Simplifi ed symbols (on the right, below) for cardinal marks, isolated dangers and safe water consist of only the topmark without the buoy shape symbol. Simplifi ed symbology for marks with any other type of topmark will display only the simplifi ed buoy or beacon shape symbol without a topmark.
2 cones point upward
2 cones point downward
2 cones base to base
2 cones point to point
IALA System buoy topmarks 2 spheres 9 (beacon topmarks shown upright) Sphere
Cone point up
Cone point down Cylinder, square, vertical rectangle X-shape
Flag or other shape Board, horizontal rectangle Cube point up Upright cross over a circle T-shape
Beacon with topmark, color, radar G Ǝ3Ǝ bn No 2 Beacon in general with 10 No2 refl ector and designation Ra Ref topmark, paper chart
Buoy with topmark, color, radar by No 3 Conical buoy with 11 No3 refl ector and designation No 3 topmark, paper chart
Note: Radar refl ectors on fl oating marks usually are not charted. ECDIS does not display radar refl ectors on fi xed or fl oating aids; this information is obtained by cursor pick.
88 Buoys, Beacons Q
No. INT Description NOAA NGA Other NGA ECDIS
Buoys Shapes of Buoys
Features Common to Buoys and Beacons → Q 1–11
Paper Chart Simplifi ed
Conical buoy, nun buoy, ogival Conical buoy 20 buoy N
Can buoy or cylindrical buoy Can buoy 21 C
22 Spherical buoy SP Spherical buoy
23 Pillar buoy P Pillar buoy
24 Spar buoy, spindle buoy S Spar buoy
25 Barrel buoy, tun buoy Barrel buoy
Super-buoy
26 Superbuoy Lanby, super-buoy
Super-buoy odas & lanby
Minor Light Floats
30 Light fl oat as part of IALA System Light fl oat
Light fl oat not part of IALA 31 Light fl oat † System
89 Q Buoys, Beacons
No. INT Description NOAA NGA Other NGA ECDIS
Mooring Buoys Supplementary national symbols: m, n
Oil or Gas Installation Buoy → L
Mooring buoy, can shape, paper chart
Mooring buoy, barrel Mooring buoys 40 shape, paper chart
Installation buoy and mooring buoy, simplifi ed
Fl Y 2s Mooring buoy with light 41 Lighted mooring buoy (example) fl are, barrel shape, paper chart
Trot, mooring buoys with Trot, mooring buoys with ground ground tackle and berth 42 tackle and berth numbers Nr 1 numbers
Tel Mooring buoy, can Tel shape, paper chart Tel = telegraphic 43 Mooring buoy with telegraphic or Mooring buoy, barrel telephonic communication shape, paper chart T T Installation buoy and T = telephonic mooring buoy, simplifi ed
Numerous (5 buoys) 44 Numerous moorings (example) mooring Small craft mooring area buoys Moorings
Availability of visitor 45 V Visitors’ mooring moorings at marina is obtained by cursor pick
90 Buoys, Beacons Q
No. INT Description NOAA NGA Other NGA ECDIS
Special Purpose Buoys
Note: Shapes of buoys are variable. Lateral or Cardinal buoys may be used in some situations.
Purpose of buoy and other information is obtained by cursor pick Firing danger area (Danger 50 Zone) buoy 51 Target
52 Marker Ship Conical buoy with topmark, paper chart 53 Barge
54 DG Degaussing Range buoy Special purpose buoy, spherical or barrel 55 Cable Cable buoy Tel shaped, or default symbol for special 56 Spoil ground buoy purpose buoy, simplifi ed 57 Buoy marking outfall
Super-buoy, paper chart
Super-buoy odas & ODAS buoy (Ocean Data lanby, simplifi ed 58 Acquisition System), data ODAS ODAS collecting buoy Spherical buoy, paper chart
Spherical buoy, simpli- fi ed
Conical buoy with topmark, paper chart
Buoy marking wave recorder or 59 current meter Special purpose buoy, spherical or barrel shaped, or default symbol for special purpose buoy, simplifi ed Conical buoy, paper Seaplane anchorage buoy 60 AERO chart Buoy marking traffi c separation 61 scheme
Conical buoy with Buoy marking recreation zone 62 topmark, paper chart
Emergency wreck marking buoy 63 BuY BuY (EWMB) Al.Oc.BuY.3s
91 Q Buoys, Beacons
No. INT Description NOAA NGA Other NGA ECDIS
Seasonal Buoys
(occas) Buoy privately maintained Y Status as private is obtained by cursor 70 (example) Priv pick (01.04.– Y 31.10.)
Status as periodic and period start and Seasonal buoy (example) 71 stop dates are obtained by cursor pick
Beacons Supplementary national symbols: o
Lighted Beacons → P Features Common to Beacons and Buoys → Q1–11
Default symbol for a beacon, paper chart Beacon in general, Default symbol for a characteristics unknown or chart Bn Bn Bn 80 G R beacon, simplifi ed scale too small to show Beacon in general, paper chart R 81 Beacon with color, no distinctive RW Beacon color is obtained by cursor topmark G Bn pick Beacon color is obtained by cursor pick
See note at Q 9 for information about topmarks and ECDIS simplifi ed symbology
Beacon in general with topmark, paper chart
Major red lateral beacon, simplifi ed Beacons with colors and 82 topmarks (examples) Beacon in general with topmark, paper chart
Cardinal beacon, north, simplifi ed
Beacon in general with topmark, paper chart
Isolated danger beacon, simplifi ed
Beacon in general with Beacon on submerged rock with topmark, paper chart 83 colors (topmark as appropriate) Isolated danger beacon, simplifi ed
92 Buoys, Beacons Q
No. INT Description NOAA NGA Other NGA ECDIS
Minor Impermanent Marks Usually in Drying Areas (Lateral Marks of Minor Channels)
Minor Pile → F
Stake Stake † Minor, stake or pole Stake, pole 90 beacon, paper chart † Pole Pole R
Port Hand Starboard Hand Minor, stake or pole beacon, paper chart 91 Perch, withy R Minor red lateral beacon, simplifi ed
Minor green lateral Withy 92 † † beacon, simplifi ed
Minor Marks, Usually on Land
Landmarks → E
100 Cairn Cairn CAIRN Conspicuous cairn
Square or rectangular day mark, paper chart
Square or rectangular day mark, simplifi ed
Triangular day mark, point up, paper chart 101 Colored or white mark Triangular day mark, point up, simplifi ed
Triangular day mark, point down, paper chart
Triangular day mark, point down, simplifi ed
Colored topmark (color known 102.1 or unknown) with function of a † beacon
102.2 Painted boards with function of † leading beacons
93 Q Buoys, Beacons
No. INT Description NOAA NGA Other NGA ECDIS
Beacon Towers
Beacon tower, paper chart
Beacon tower with Beacon towers without and with RW topmarks, paper chart 110 topmarks and colors (examples) Bn
Major red lateral beacon, simplifi ed Major green lateral beacon, simplifi ed
Lattice beacon, paper Lattice beacon 111 chart
Special Purpose Beacons
Leading Lines, Clearing Lines → M
Note: Topmarks and colors shown where scale permits.
Bns in 270 deg 120 Leading beacons line 270° Leading beacons
Bns in 270 deg Beacons marking a Beacons marking a clearing line 121 line 270° clearing line or transit
MARKERS 270 deg
Beacons marking measured MARKERS Beacons marking 122 distance with quoted bearings measured distance COURSE 270°00' TRUE 270 deg
Cable landing beacon Cable landing beacon (example) 123 W (example)
124 Refuge beacon Purpose as refuge or fi ring danger area beacon is obtained by cursor pick 125 Firing danger area beacons
126 Notice board Notice board
94 Buoys, Beacons Q
IALA Maritime Buoyage System
IALA International Association of Marine Aids to Navigation and Lighthouse Authorities
Where in force, the IALA System applies to all fixed and floating marks except landfall lights, leading lights and marks, sectored lights and major floating lights. The standard buoy shapes are cylindrical (can) , conical , spherical , pillar , and spar , but variations may occur, for example: light floats . In the illustrations in Q 130.1, only the standard buoy shapes are used. In the case of fixed beacons (lit or unlit), only the shape of the topmark is of navigational significance. Lateral marks are generally for well-defined channels.
130 There are two international buoyage regions where lateral marks differ. Region A is primarily comprised of the waters surrounding Greenland, Africa, Europe, Australia and Asia (except for Japan, the Republic of Korea and the Philippines). Region B is primarily comprised of the waters surrounding North and South America, Japan, the Republic of Korea and the Philippines.
ECDIS marks the boundary between IALA regions A and B with this symbol:
180° 150°W 120°W 90°W 60°W 30°W 0° 30°E 60°E 90°E 120°E 150°E 180°
60°N 60°N
30°N 30°N B Japan 130.1 B Republic of Korea Philippines
0° 0°
A
30°S 30°S A
60°S 60°S
180° 150°W 120°W 90°W 60°W 30°W 0° 30°E 60°E 90°E 120°E 150°E 180°
95 Q Buoys, Beacons
Port-hand marks are red with Port-hand marks are green with R G cylindrical topmarks (if any). G G cylindrical topmarks (if any). R If lit, light is red. If lit, light is green. R
R G R G
Fl R RGR Fl G GRG R G Fl R Fl G Fl G R Fl R INT Fl R G Fl G Fl G Fl R G R R G G R Fl(2+1)R Fl(2+1)G GRG RGR If lit, lights on port-hand and starboard-hand marks may R G Starboard-hand marks are green G R Starboard-hand marks are red with conical topmarks (if any). with conical topmarks (if any). G R have any rhythm specifi ed except Fl(2+1), which is used If lit, light is green. If lit, light is red. for preferred channel aids. REGION A REGION B
All preferred channel marks have horizontal bands of 130.1 color; the top color indicates the preferred channel. R G G G C R C N R P S N Port-hand marks are red with Port-hand marks are green with cylindrical topmarks (if any). cylindrical topmarks (if any). G R R If lit, light is red. C If lit, light is green. G C A preferred channel buoy may be a can or conical shape S S to indicate the preferred channel (in addition to the top RG R C GR Fl R G C color band), but may also have a pillar or spar shape. Fl G G R Fl G G Fl R R G R Fl R R Fl G Fl G G Fl R NOAA Fl R Fl G RG GR Fl(2+1)R Fl(2+1)G R G G R C N C N G R N N Starboard-hand marks are green Starboard-hand marks are red with conical topmarks (if any). with conical topmarks (if any). If lit, light is green. If lit, light is red. REGION A REGION B
Direction of Buoyage: The direction of buoyage is that taken when approaching a harbor from seaward. Along coasts, the direction is determined by buoyage authorities, normally clockwise around land masses.
Symbols showing direction of buoyage where it is not obvious
INT IALA Region A IALA Region B General symbol for direction of buoyage on multicolored charts on multicolored charts 130.2
ECDIS General symbol for direction of buoyage IALA Region A IALA Region B
96 Buoys, Beacons Q
No. INT ECDIS
Cardinal Marks: indicating navigable water to the named side of the marks. In the illustration below all marks are the same in Regions A and B.
N
N
NW VQ or Q NE WE
Topmark: 2 black cones Light: White Black above yellow
VQ(9)10s VQ(3)5s or Q(9)15s or Q(3)10s The same abbreviations are used for lights on YBY BY BY BYB spar buoys and beacons. S The periods 5s, 10s, and 15s may not always Paper chart symbology 130.3 Point of be charted. W interest E 0 5 10 15 Time (seconds) N Period
YBY YBY YB YB BYB BYB Yellow with Yellow above black Black with Cardinal marks are seldom used in U.S. waters black band yellow band and do not appear on NOAA charts, except for charts that also depict Canadian waters. WE
VQ(6)+LFl.10s or Q(6)+LFl.15s SE YB SW
S S
Simplifi ed symbology
97 Q Buoys, Beacons
No. INT Description NOAA NGA Other NGA ECDIS
Pillar buoy with 2 Isolated Danger Marks stationed spheres topmark over dangers with navigable water around them
BRB BRB 130.4 Body: black with red horizontal BR Spar buoy with 2 band(s) spheres topmark Fl(2) BRB BRB Topmark: 2 black spheres Light: white Isolated danger buoy, simplifi ed
Spherical buoy, paper chart
Safe Water Marks such as mid-channel and landfall marks Pillar buoy with sphere topmark RW RW RW Body: red and white vertical 130.5 Iso or RW Oc or stripes LFl.10s or RW RW RW Mo(A) Topmark (if any): red sphere Spar buoy with sphere topmark Light: white
Safe water buoy, simplifi ed
Spherical buoy, paper chart
Special Marks not primarily to assist navigation but to indicate Can buoy special features
Y Y Y Y Body (shape optional): yellow* Conical buoy 130.6 Y Y Y Y Topmark (if any): yellow x or upright cross Al.Oc.BuY.3s* Fl.Y Lights: yellow, rhythm optional* BuY* BuY* Spar buoy with x-shape *in special cases yellow may be topmark in conjunction with another color
Special purpose buoy, simplifi ed
98 Buoys, Beacons Q
No. INT Description NOAA NGA Other NGA ECDIS
Supplementary National Symbols
a Bell buoy BELL BELL
b Gong buoy GONG GONG
c Whistle buoy WHIS WHIS
Fairway buoy (red and white d vertical stripe) RW
Mid-channel buoy (red and white e vertical stripe) RW
Starboard-hand buoy (entering R f from seaward - US waters) ƎƎ
Port-hand buoy (entering from G ″1″ g seaward - US waters) ″1″
Bifurcation/Junction buoys RG GR h Isolated danger, Wreck or Obstruction buoy BR
i Fish trap (area) buoy Y
j Anchorage buoy (marks limits) Y
R RG Triangular shaped beacons Bn
G GR W B l Square shaped beacons Bn Bn Bn
Beacon, color unknown Bn
o Lighted beacon Bn
q Security barrier Security barrier
r Scientifi c mooring buoy
s Float (unlighted)
t White and blue buoy WBuW
99 R Fog Signals
No. INT Description NOAA NGA Other NGA ECDIS
General
Fog Detector Light → P Fog Light → P
Position of a conspicuous point feature with fog signal
Lighted pillar buoy, paper Position of fog signal, type of fog AIS chart with fog signal 1 signal not stated Fog Sig
Lighted super-buoy, paper chart with fog signal
Types of Fog Signals, with Abbreviations Supplementary national symbol: a 10 Explos Explosive GUN 11 Dia Diaphone DIA 12 Siren Siren SIREN Type of fog signal and its 13 Horn Horn (nautophone, reed, tyfon) HORN characteristics are obtained by cursor pick 14 Bell Bell BELL 15 Whis Whistle WHISTLE 16 Gong Gong GONG Examples of Fog Signal Descriptions
Note: The fog signal symbol will usually be omitted when a description of the signal is given.
Siren at a lighthouse, giving a long blast followed by a short 20 Fl 3s 70m 29M Fl 3s 70m 29M Light with fog signal one (N), repeated every 60 SIREN Mo(N) 60s SIREN seconds
Pillar buoy, paper chart Wave-actuated bell buoy 21 BELL BELL with fog signal
Paper Chart Simplifi ed Light buoy, with horn giving a single blast every 15 seconds, in Q(6)+LFl 15s Lighted pillar buoy, paper Q(6)+LFl 15s 22 conjunction with a wave-actuated HORN(1) 15s chart with fog signal HORN WHIS whistle WHIS
Supplementary National Symbol a Morse Code fog signal Mo
100 Radar, Radio, Satellite Navigation Systems S
No. INT Description NOAA NGA Other NGA ECDIS
Radar
Radar Structures Forming Landmarks → E Radar Surveillance Systems → M
Coast radar station, providing 1 range and bearing service on Ra Radio station request
Ramark, radar beacon Ramark 2 transmitting continuously
Radar transponder beacon, with 3.1 morse identifi cation, responding RACON † within the 3 cm (X) band † Radar transponder beacon, with 3.2 morse identifi cation, responding † within the 10 cm (S) band
Radar transponder beacon, with Racon (Z) 3.3 morse identifi cation (3 & 10 cm)
Radar transponder beacon with sector of obscured reception Radar transponder beacon
3.4
Radar transponder beacon with sector of reception
Leading radar transponder beacons ( ‡ : objects in line) 3.5 Leading radar transponder beacons coincident with leading lights
Paper Chart Simplifi ed Radar transponder beacons on RACON (–) Radar transponder on 3.6 5ƎƎ Racon fl oating marks Fl R 4s fl oating mark
Radar refl ector Ra Ref 4 Symbol indicating this object is radar conspicuous 5 Radar conspicuous feature Ra (conspic)
101 S Radar, Radio, Satellite Navigation Systems
No. INT Description NOAA NGA Other NGA ECDIS
Radio
Radio Structures Forming Landmarks → E Radio Reporting (Calling-in or Way) points → M
Circular (non-directional) marine 10 RC R Bn † or aeromarine radiobeacon † †
Directional radiobeacon with RD 270° bearing line † † RD 11 Radio station Directional radiobeacon coincident with leading lights †
12 Rotating pattern radiobeacon RW † † Additional information regarding radio,
CONSOL Bn such as category of radio station, 13 Consol beacon 190 kHz CONSOL signal frequency, communication chan- † † MMF † nel, call sign, estimated signal range, periodicity and status may be included in the cursor pick. 14 Radio direction-fi nding station RDF The presence of an AIS transmitted signal intended for use as an aid to Coast radio station providing navigation associated with a physical 15 R Sta R aid, including the AIS MMSI Number, † QTG service † † can be obtained by cursor pick on the physical aid.
16 Aeronautical radiobeacon AERO R Bn † †
Automatic Identifi cation System 17.1 transmitter
Automatic Identifi cation System 17.2 transmitter on fl oating marks (examples)
Virtual AIS (with unknown IALA- V-AIS 18.1 defi ned function)
Virtual AIS (with known IALA- V-AIS North cardinal virtual aid 18.2 defi ned function) V-AIS Satellite Navigation Systems World Geodetic System, 1972 WGS WGS72 WGS84 or 1984 50 Note: A note may be shown to indicate the shifts of latitude and longitude, to one, two or three decimal places of a minute, depending on the chart scale, which should be made to satellite-derived positions (which are referred to WGS 84) to relate them to the chart.
Station providing DGPS 51 DGPS reference station corrections DGPS
102 Services T
No. INT Description NOAA NGA Other NGA ECDIS
Pilotage
Boarding place, position of a pilot Pilot boarding place 1.1 cruising vessel Pilots
Boarding place, position of a pilot 1.2 cruising vessel, with name (e.g. Name District, Port) Boarding place, position of a pilot 1.3 cruising vessel, with note (e.g. (see note) Pilot boarding area Tanker, Disembarkation)
1.4 Pilots transferred by helicopter
Pilot offi ce with pilot lookout, 2 † Pilot lookout station
3 Pilot offi ce PIL STA Pilots
Port with pilotage service 4 (boarding place not shown) Coast Guard, Rescue
C G
10 Coast Guard station Coast guard station R TR C G WALLIS SANDS
Coast guard station Coast Guard station with Rescue 11 station Rescue station
Rescue station, Lifeboat station, LS S 12 Rocket station 13 Lifeboat lying at a mooring Rescue station
14 Refuge for shipwrecked mariners Signal Stations
20 Signal station in general SS Sig Sta
Signal station, showing 21 international port traffi c signals Signal station Traffi c signal station, Port entry 22 and departure signals 23 Port control signal station HECP
103 T Services
No. INT Description NOAA NGA Other NGA ECDIS
24 Lock signal station
25.1 Bridge passage signal station
Bridge lights including traffi c 25.2 † signals 26 Distress signal station
27 Telegraph station
28 Storm signal station S Sig Sta Weather signal station, Wind 29 signal station, National Weather NWS SIG STA Service (NWS) signal station Signal station 30 Ice signal station
31 Time signal station
32.1 Tide scale or gauge Tide Gauge Automatically recording tide 32.2 gauge 33 Tide signal station
34 Tidal stream signal station
35 Danger signal station
36 Firing practice signal station Supplementary National Symbols
a Bell (on land) BELL
b Marine police station MARINE POLICE
c Fireboat station FIREBOAT STATION
d Notice board
e Lookout station; Watch tower LOOK TR
f Semaphore Sem
g Park Ranger station
104 Small Craft (Leisure) Facilities U
No. INT Description NOAA NGA Other NGA ECDIS
Small Craft (Leisure) Facilities
Traffi c Features, Bridges → D Public Buildings, Cranes → F Pilots, Coast Guard, Rescue, Signal Stations → T
Marina facilities
TIDES DEPTH SERVICES SUPPLIES APPROACH-FEETALONGSIDE-FEET (REPORTED)ELECTRICITY-MOORINGS-BERTHS (REPORTED)RAMP SURFACED-NATURALREPAIRS HULL-MOTOR-RADIOMARINE RAILWAY-FEETLIFT CAPACITY-TONSBOAT FOOD-LODGING-CAMPINGTOILETS-SHOWERS-LAUNDRYPUMP-OUTWINTER STATIONNAUTICAL STORAGEWATER-ICE CHART WET-DRYGROCERIES-HARDWARE SALESBAIT-TACKLEDIESEL OIL-GASOLINE RENTAL CANOE-ROW-MOTORCHARTER-HOUSE-SAIL
(TRANSIENTS)
a NO LOCATION 1 LAS VEGAS BOAT 80 20 S HM M F C T P WD C WI GH BT G
2 LAKE MEAD MAR 80 15 B E S HM M FL T P WD C WI DG
3 HEMENWAY HARBOR 80 S
4 TEMPLE BAR HAR 80 15 SN M H FLC TSL P WD C WI GH BT G
5 ECHO BAY RESORT 35 35 BM S M M H FLC TSL P WD C WI GH BT G
6 OVERTON BEACH 100 S M F C TSL WD WI G BT G
7 CALLVILLE BAY M 100 40 S M H F C TS P WD WI G B G (+) DENOTES HOURS LATER (-) DENOTES HOURS EARLIER THE LOCATIONS OF THE ABOVE PUBLIC MARINE FACILITIES ARE SHOWN ON THE CHART BY LARGE PURPLE NUMBERS. THE TABULATED “APPROACH-FEET (REPORTED)” IS THE DEPTH AVAILABLE FROM THE NEAREST NATURAL OR DREDGED CHANNEL TO THE FACILITY. THE TABULATED “PUMPING STATION” IS DEFINED AS FACILITIES AVAILABLE FOR PUMPING OUT BOAT HOLDING TANKS. (H) APPROACH DEPTH FLUCTUATES WITH LAKE LEVELS. †
105 Index of Abbreviations Note: INT abbreviations are in bold type A C abt...... About ...... D i C ...... Can, cylindrical ...... Q 21 AERO, Aero ...... Aeronautical light ...... P 60-61.1 C...... Cape...... Aero R Bn ...... Aeronautical radiobeacon...... S 16 C ...... Cove ...... Aero RC ...... Aeronautical radiobeacon ...... S 16 c ...... Coarse ...... J 32 AIS ...... Automatic Identifi cation System...... S 17.1-17.2 Ca, ca ...... Calcareous ...... J 38 Al ...... Alternating...... P 10.11 CALM ...... Catenary Anchor Leg Mooring ...... L 16 ALC ...... Articulated Loading Column ...... L 12 Cap ...... Capitol ...... E t Am ...... Amber ...... P 11.8 Cas ...... Castle ...... E 34.2 anc ...... Ancient ...... Cb...... Cobbles ...... J 8 ANCH, Anch ...... Anchorage ...... N 20 cbl ...... Cable ...... B 46 ANT, Ant ...... Antenna ...... E 31 cd ...... Candela ...... B 54 approx...... Approximate ...... Cem ...... Cemetery ...... E 19 Apprs ...... Approaches ...... CG ...... Coast Guard station ...... T 10 Apr ...... April ...... Ch ...... Chocolate ...... J ba Apt ...... Apartment...... E s Ch...... Church...... E 10.1 Arch ...... Archipelago...... Chan ...... Channel ...... ASL ...... Archipelagic Sea Lane ...... M 17 Chem ...... Chemical...... L40.1-40.2 ATBA...... Area To Be Avoided ...... M 29.1 CHY, Chy, Chys . . . . .Chimney(s) ...... E 22 Aug ...... August ...... Cir ...... Cirripedia ...... J ae auth ...... Authorized ...... K 46.2 Ck ...... Chalk ...... J f Ave ...... Avenue ...... CL ...... Clearance ...... D 20-21, 26, 28 B Cl ...... Clay ...... J 3 B ...... Bay, bayou ...... cm ...... Centimeter(s) ...... B 43 B ...... Black ...... Q 2 Cn ...... Cinders ...... J p Bdy Mon ...... Boundary mark (monument)...... B 24 Co ...... Company ...... E u Bk ...... Bank ...... Co...... Coralline Algae ...... J 10, K 16 bk ...... Black...... J as Co Hd ...... Coral Head ...... J i bk ...... Broken ...... J 33 Co rf ...... Coral reef ...... Bkw ...... Breakwater ...... F 4.1 COLREGS ...... International Regulations for Preventing Collisions at Sea . . . . N a Bl ...... Blue ...... P 11.4 Consol ...... Consol Beacon ...... S 13 bl...... Black...... J as constr ...... Construction ...... F 32 BM ...... Bench mark ...... B 23 Corp ...... Corporation ...... E v Bn, Bns ...... Beacon(s) ...... M 2, P 4-5, Q 80-81 cov ...... Covers ...... L21.2 BnTr, BnTrs ...... Beacon tower(s) ...... P 3, Q 110 cps ...... Cycles per second ...... B j Bo...... Boulder(s) ...... J 9.2 Cr ...... Creek ...... Bol ...... Bollard ...... CRD ...... Columbia River Datum ...... H j Br ...... Breakers ...... K 17 crs...... Coarse ...... J 32 br ...... Brown ...... J az c/s ...... Cycles per second ...... B j brg ...... Bearing ...... B 62 Cswy...... Causeway...... F 3 brk...... Broken ...... J 33 Ct Ho ...... Courthouse ...... E o Bu...... Blue ...... P 11.4 Cup ...... Cupola ...... E 10.4 Cus Ho ...... Customs house...... F 61 Cy ...... Clay ...... J 3
106 Index of Abbreviations Note: INT abbreviations are in bold type D fl y ...... Flinty...... J ao D ...... Destroyed ...... fm, fms ...... Fathom(s) ...... B 48 dec ...... Decayed ...... J an fne...... Fine...... J 30 Dec ...... December...... Fog Det Lt ...... Fog detector light ...... P 62 Deg ...... Degree(s) ...... B n Fog Sig ...... Fog Signal ...... R 1 Destr ...... Destroyed ...... FP ...... Flagpole ...... E 27 dev ...... Deviation...... B 67 FPSO ...... Floating Production, Storage and Offl oading Vessel ...... L 17 DF...... Direction Finder ...... Fr ...... Foraminifera ...... J y DG ...... Degaussing Range ...... N 25, Q 54 Fs, FS ...... Flagstaff...... E 27 DGPS ...... Differential Global Positioning System ...... S 51 Fsh stks ...... Fishing stakes...... K 44.1 Di ...... Diatoms ...... J aa FT, ft ...... Foot, Feet ...... B 47, D 20 DIA, Dia ...... Diaphone ...... R 11 Fu ...... Fucus ...... J af Dir...... Direction light ...... P 30-31 G Discol ...... Discolored...... K e G...... Gravel ...... J 6 dist ...... Distant ...... G...... Green ...... P 11.3, Q 2 dk ...... Dark ...... J bd G...... Gulf...... dm ...... Decimeter(s) ...... B 42 GAB, Gab ...... Gable ...... E i Dn, Dns ...... Dolphin(s) ...... F 20 GCLWD ...... Gulf Coast Low Water Datum...... H k Dol ...... Dolphin(s) ...... F 20 Gl ...... Globigerina ...... J z DW ...... Deep Water route ...... M 27.1, N 12.4 glac ...... Glacial...... J ap DZ...... Danger Zone ...... Q 50 gn ...... Green ...... J av E Govt Ho ...... Government House ...... E m E ...... East ...... B 10 Gp Fl...... Group fl ashing ...... P 10.4 ED...... Existence Doubtful...... I 1 Gp Oc ...... Group occulting ...... P 10.2 EEZ ...... Exclusive Economic Zone ...... N 47 GPS ...... Global Positioning System ...... Entr ...... Entrance ...... Grd ...... Ground ...... J a ESSA ...... Environmentally Sensitive Sea Area...... N 22 Grs ...... Grass ...... J v Est ...... Estuary ...... grt...... Gross Register Tonnage ...... exper...... Experimental...... GT...... Gross Tonnage ...... Explos ...... Explosive...... R 10 gty...... Gritty...... J am Exting, exting ...... Extinguished...... P 55 gy ...... Gray ...... J bb F H F ...... Fixed ...... P 10.1 H ...... Helicopter ...... T 1.4 f ...... Fine ...... J 30 h ...... Hard ...... J 39 F Fl ...... Fixed and fl ashing ...... P 10.10 h ...... Hour ...... B 49 F Gp Fl ...... Fixed and Group Flashing ...... P f HAT ...... Highest Astronomical Tide ...... H 3 Facty...... Factory ...... E d Hbr Mr...... Harbormaster ...... F 60 FAD ...... Fish Aggregating Device ...... HHW ...... Higher High Water ...... H b Fd ...... Fjord ...... Hk ...... Hulk ...... F34, K 21, 22 Feb ...... February ...... Ho ...... House ...... FISH ...... Fishing ...... N 21 hor ...... Horizontally disposed ...... P 15 Fl ...... Flashing...... P 10.4 Hor CL ...... Horizontal clearance...... D 21 fl ...... Flood...... H q Hosp ...... Hospital...... E g, F 62.2 Fla ...... Flare stack ...... L 11 hr ...... Hour ...... B 49
107 Index of Abbreviations Note: INT abbreviations are in bold type hrd ...... Hard ...... J 39 Le ...... Ledge ...... ht...... Height ...... H p LLW ...... Lower Low Water ...... H e HW ...... High Water ...... H a Lndg...... Landing for boats ...... F 17 HWF&C ...... High Water Full & Change ...... H h LNG ...... Liquefi ed Natural Gas ...... Hz ...... Hertz...... B g LoLo ...... Load-on, Load-off ...... I Long...... Longitude ...... B 2 IALA ...... International Association of Lighthouse Authorities*...... Q 130 LPG ...... Liquefi ed Petroleum Gas ...... IHO ...... International Hydrographic Organization ...... Lrg ...... Large ...... J ai illum ...... Illuminated ...... P 63 LS S ...... Life saving station...... T 12 IMO ...... International Maritime Organization ...... lt ...... Light ...... J bc In...... Inlet...... Lt Ho ...... Light house ...... P 1 in, ins ...... Inch(es)...... B c Lt, Lt(s) ...... Light(s) ...... P 1 Inst ...... Institute...... E n Ltd...... Limited ...... E r INT ...... International ...... A 2, T 21 LW ...... Low Water ...... H c Intens ...... Intensifi ed ...... P 46 LWD ...... Low Water Datum...... H d IQ ...... Interrupted quick ...... P 10.6 LWF&C ...... Low Water Full and Change ...... H i ISLW ...... Indian Spring Low Water ...... H g M Iso ...... Isophase ...... P 10.3 M...... Mud, muddy ...... J 2 ITZ ...... Inshore Traffi c Zone ...... M 25.1 M...... Nautical mile(s) ...... B 45 IUQ ...... Interrupted ultra quick ...... P 10.8 m ...... Medium (in relation to sand) ...... J 31 IVQ ...... Interrupted very quick ...... P 10.7 m ...... Meter(s) ...... B 41 J m ...... Minute(s) of time...... B 50 Jan ...... January...... Ma...... Mattes ...... J ag Jul ...... July ...... mag ...... Magnetic...... B 61 Jun ...... June ...... Magz...... Magazine ...... E l K Maintd...... Maintained ...... P 65 K ...... Kelp ...... J u Mar ...... March ...... kc ...... Kilocycle ...... B k Mc...... Megacycles...... B l kHz ...... Kilohertz ...... B h Mds ...... Madrepores ...... J j km ...... Kilometer(s)...... B 40 MHHW ...... Mean Higher High Water ...... H 13 kn ...... Knot(s)...... B 52 MHLW...... Mean Higher Low Water...... H 14 L MHW...... Mean High Water ...... H 5 L ...... Lake, loch, lough ...... MHWN ...... Mean High Water Neaps ...... H 11 L Fl ...... Long-fl ashing ...... P 10.5 MHWS ...... Mean High Water Springs ...... H 9 La ...... Lava ...... J l Mi ...... Nautical mile(s)...... B 45 Lag ...... Lagoon ...... min ...... Minimum...... K 46.2 LANBY ...... Large Automatic Navigational Buoy...... P 6 min ...... Minute(s) of time...... B 50 LASH ...... Lighter Aboard Ship ...... Mk...... Mark ...... Q 101 LAT ...... Lowest Astronomical Tide...... H 2 Ml ...... Marl...... J c Lat ...... Latitude ...... B 1 MLHW...... Mean Lower High Water...... H 15 Ldg ...... Landing...... F 17 MLLW ...... Mean Lower Low Water ...... H 12 Ldg ...... Leading Lights ...... P 20.3 MLW ...... Mean Low Water ...... H 4
*Now known as the International Association of Marine Aids to Navigation and Lighthouse Authorities, the organization formerly called the International Association of Lighthouse Authorities/Association Internationale de Signali- sation Maritime (IALA/AISM) continues to use IALA as an abbreviation for its full name.
108 Index of Abbreviations Note: INT abbreviations are in bold type MLWN...... Mean Low Water Neaps ...... H 10 PA ...... Position approximate...... B 7 MLWS ...... Mean Low Water Springs ...... H 8 Pass ...... Passage, Pass ...... mm ...... Millimeter(s) ...... B 44 Pav ...... Pavilion...... E p Mn...... Manganese ...... J q PD...... Position doubtful ...... B 8 Mo ...... Morse Code...... P 10.9, R 20 Pk ...... Peak ...... MON, Mon ...... Monument ...... E 24 PLT STA ...... Pilot station ...... T 3 MR ...... Marine Reserve ...... N 22 Pm ...... Pumice ...... J m MRCC...... Maritime Rescue and Coordination Center ...... PO ...... Post offi ce...... F 63 Ms...... Mussels ...... J s Po ...... Polyzoa...... J ad MSL ...... Mean Sea Level ...... H 6 pos, posn ...... Position...... Mt ...... Mountain, Mount ...... Post Off...... Post offi ce...... F 63 Mth ...... Mouth ...... Priv, priv ...... Private ...... P 65, Q 70 MTL ...... Mean Tide Level ...... H f Prod well ...... Production well ...... L 20 N PROHIB ...... Prohibited ...... N 2.2 N ...... North ...... B 9 PSSA ...... Particularly Sensitive Sea Area...... N 22 N ...... Nun...... Q 20 Pt ...... Pteropods ...... J ac NE...... Northeast...... B 13 Pyl ...... Pylon ...... D 26 NGA ...... National Geospatial-Intelligence Agency ...... Q NM ...... Nautical miles(s) ...... B 45 Q...... Quick ...... P 10.6 NMi ...... Nautical miles(s) ...... B 45 QTG ...... Service providing DF signals ...... S 15 No...... Number ...... N 12.2 Quar ...... Quarantine ...... F e NOAA ...... National Oceanic and Atmospheric Administration...... Qz ...... Quartz ...... J g NOS ...... National Ocean Service ...... R Nov ...... November...... R ...... Coast radio station providing QTG service ...... S 15 Np ...... Neap tide ...... H 17 R ...... Radio Station ...... S 15 NT...... Net Tonnage ...... R ...... Red...... P 11.2 NTM ...... Notice to Mariners ...... R, r ...... Rock, Rocky ...... J 9.1, K b NW ...... Northwest ...... B 15 R Bn ...... Circular radiobeacon ...... S 10 NWS SIG STA ...... National weather service signal station ...... T 29 R Lts ...... Air obstruction lights ...... P 61.2 O R Mast ...... Radio mast ...... E 28 Obs Spot ...... Observation spot ...... B 21 R Sta...... Radio Station ...... S 15 OBSC, Obscd ...... Obscured...... P 43 R Tower ...... Radio tower ...... E 29 Obstn ...... Obstruction ...... K 41 R TR, R Tr ...... Radio tower ...... E 29 Oc...... Occulting...... P 10.2 Ra ...... Radar ...... M 31-32, S 1 Occas...... Occasional ...... P 50 Ra ...... Radar reference line...... M 32.1 Oct ...... October...... Ra (conspic) ...... Radar conspicuous object ...... S 5 ODAS ...... Ocean Data Acquisition System ...... Q 58 Ra Ref ...... Radar refl ector ...... S 4 Or ...... Orange...... P 11.7 Racon...... Radar transponder beacon ...... S 3 OVHD ...... Overhead ...... D 28 Radar Sc ...... Radar scanner ...... E 30.3 Oys ...... Oysters ...... J r Radar Tr, RADAR TR Radar tower ...... E 30.2 P Ramark ...... Radar marker beacon ...... S 2 P ...... Pebbles ...... J 7 RC ...... Circular radiobeacon ...... S 10 P ...... Pillar ...... Q 23 RD ...... Directional radiobeacon...... S 11 (P)...... Preliminary (NTM) ...... Rd ...... Radiolaria ...... J ab
109 Index of Abbreviations Note: INT abbreviations are in bold type Rd ...... Road, roadstead ...... SP...... Spherical...... Q 22 rd ...... Red...... J ay Sp ...... spire ...... E 10.3 RDF ...... Radio direction fi nding station ...... S 14 Sp ...... Spring tide ...... H 16 Ref ...... Refuge ...... Q 124 Spg ...... Sponge ...... J t Rep ...... Reported...... I 3 Spi ...... Spicules ...... J x Rf ...... Reef ...... Spipe, S’pipe ...... Standpipe ...... E 21 RG ...... Radio direction fi nding station ...... S 14 spk ...... Speckled...... J al Rk ...... Rocks ...... J 9.1, K b SPM ...... Single Point Mooring ...... L 12 Rky ...... Rocky ...... J 9.1 SS...... Signal station ...... T 20-36 RoRo ...... Roll-on, Roll-off Ferry (RoRo Terminal) ...... F 50 St ...... Stones ...... J 5 rt ...... Rotten ...... J aj St M, St Mi ...... Statute mile(s) ...... B e Ru, (ru)...... Ruin, ruined...... D 8, E 25.2, F33 STA, Sta ...... Station ...... F 41.1, S 15, T 3 RW ...... Rotating-pattern radiobeacon ...... S 12 stf ...... Stiff ...... J 36 S Stg ...... Sea-tangle ...... J w S ...... Sand...... J 1 stk ...... Sticky ...... J 34 S ...... South ...... B 11 Str ...... Strait ...... S ...... Spar, spindle...... Q 24 Str ...... Stream ...... H l s ...... Second(s) of time ...... B 51, P 12 str ...... Streaky ...... J ak SALM ...... Single Anchor Leg Mooring...... L 12 sub ...... Submarine ...... K d SBM ...... Single Buoy Mooring ...... L 16 Subm ...... Submerged ...... K 43.1 Sc ...... Scanner ...... E 30.3 SW ...... Southwest ...... B 16 Sc ...... Scoriae ...... J o sy ...... Sticky ...... J 34 Sch ...... Schist ...... J h T Sch ...... School...... E f T ...... Short ton(s) ...... B m SD...... Sailing Directions ...... T ...... Telephone...... E q Sd ...... Sound ...... T ...... TRUE ...... B 63 SD...... Sounding doubtful ...... I 2 T ...... Tufa ...... J n SE...... Southeast ...... B 14 t ...... Ton(s), Tonnage (weight) ...... B 53, F 53 sec ...... Seconds of time ...... B 51 Tel...... Telegraph ...... D 27 Sep ...... September ...... Tel off ...... Telegraph offi ce ...... E k sf ...... Stiff...... J 36 Temp, temp ...... Temporary ...... P 54 sft ...... Soft ...... J 35 ten...... Tenacious ...... J aq Sh ...... Shells ...... J 11 Tk ...... Tank ...... E 32 Shl ...... Shoal ...... TR, Tr, Trs ...... Tower(s)...... E 10.2, E 20 Si ...... Silt ...... J 4 TSS ...... Traffi c Separation Scheme ...... M 20.1 Sig ...... Signal ...... R 1, T 25.2 TT ...... Tree tops ...... C 14 Sig Sta ...... Signal station ...... T 20 TV Mast ...... Television mast...... E 28 S-L Fl ...... Short-Long Flashing ...... P b TV Tower ...... Television tower ...... E 29 S/M ...... Sand over mud ...... J 12.1 U sml ...... Small...... J ah ULCC ...... Ultra Large Crude Carrier ...... SMt ...... Seamount ...... Uncov ...... Uncovers ...... K 11 Sn ...... Shingle ...... J d unev ...... Uneven ...... J bf so ...... Soft...... J 35 Univ ...... University ...... E h Sp ...... Church spire ...... E 10.3 UQ ...... Ultra quick ...... P 10.8
110 Index of Abbreviations Note: INT abbreviations are in bold type UTC ...... Coordinated Universal Time ...... UTM ...... Universal Transverse Mercator ...... V v ...... Volcanic...... J 37 var, VAR ...... Variation ...... B 60 vard ...... Varied ...... J be vel ...... Velocity ...... H n vert ...... Vertically disposed...... P 15 Vert CL ...... Vertical clearance ...... D20, 28 Vi ...... Violet ...... P 11.5 Vil ...... Village ...... D 4 VLCC ...... Very Large Crude Carrier ...... G 187 vol ...... Volcanic, Volcano ...... J 37 Vol Ash ...... Volcanic ash ...... J k VQ ...... Very quick ...... P 10.7 VTS ...... Vessel Traffi c Service...... W W ...... West...... B 12 W ...... White ...... P 11.1 Wd ...... Weed ...... J 13.1 Well ...... Wellhead ...... L 21 WGS ...... World Geodetic System ...... S 50 Wh ...... White ...... J ar Whf ...... Wharf ...... F 13 WHIS, Whis ...... Whistle...... R 15 Wk, Wks ...... Wreck(s) ...... K 20 Wtr Tr, WTR TR . . . . .Water tower ...... E 21 Y Y ...... Yellow, Orange, Amber...... P 11.6-11.8 yd, yds ...... Yard(s) ...... B d yl ...... Yellow ...... J aw μ μs, μsec ...... Microsecond(s)...... B f
111 Index
A B Boat harbor, marina ...... F 11.1 Accurate position ...... B 32 Band, S & X ...... S 3.1-3.2 Boom ...... F 29.1 Aerial Bar code ...... A d international ...... N 40-41 cableway ...... D 25 Barge buoy ...... Q 53 Boulders ...... J 9.2 dish ...... E 31 Barrage, fl ood ...... F 43 international ...... N 40-41 Aero light ...... P 60 Barrel buoy ...... Q 25 mark, monument ...... B 24 Aeronautical radiobeacon ...... S 16 Barrier Breakers ...... K 17 Air obstruction light ...... P 61.1-61.2 fl oating ...... F 29.1, N 61 Breakwater ...... F 4.1-4.3 Airfi eld ...... D 17 oil retention ...... F 29.2 Bridge ...... D 20-24 Airport ...... D 17 security ...... N 61, Q q bascule ...... D 23.4 AIS ...... S 17.2-17.2 Bascule bridge ...... D 23.4 draw ...... D 23.6 All-round light ...... P 42-43 Basin ...... F 27-28 lifting ...... D 23.3 Alternate course ...... M c Battery ...... E 34.3 light (traffi c signal) ...... T 25.2 Alternating light ...... P 10.11 Battery (fortifi cation) ...... E 34.3 passage signal station ...... T 25.1 Amber ...... P 11.8 Beacon ...... Q 80-126 pontoon ...... D 23.5 Anchor berth ...... N 11.1-11.2 articulated ...... P 5 swing ...... D 23.2 Anchorage buoyant ...... P 5 transporter ...... D 24 areas ...... N 10-14 leading ...... Q 102.2, 120 under construction ...... D d buoy ...... Q j lighted ...... P 3-5 Broken ...... J 33 for sea-planes ...... N 14 marking a clearing line ...... Q 121 Brown ...... J az Anchoring prohibited ...... N 20 marking measured distance ...... Q 122 Buddhist temple, shrine ...... E 16 Annual change ...... B 66 on submerged rock ...... Q 83 Buildings ...... D 2, 5-6, 8 Anomaly, magnetic ...... B 81.1-82.2 radar ...... S 2-3.6 Buoyage system, IALA ...... Q 130-130.6 Antenna ...... E 31 radio ...... S 10-16 Buoyant beacon ...... P 5 Apartment ...... E s resilient ...... P 5 Buoys ...... Q 20-71 Apparent shoreline ...... C p topmarks ...... Q 9-11, 102.1 cardinal ...... Q 130.3 Approximate towers ...... P 3, Q 110-111 isolated danger ...... Q 130.4 depth contour ...... I 31 Bearing ...... B 62 lateral ...... Q 130.1 height of top of trees ...... C 14 Being reclaimed ...... F 31 marking outfall ...... Q 57 position ...... B 7, 33 Bell ...... R 14 marking recreation zone ...... Q 62 topographic contour ...... C 12 buoy ...... Q a, R 21 marking traffi c separation scheme ...... Q 61 vertical clearance ...... D i on land ...... T a mooring ...... Q 40-45 Aquaculture ...... K 44.1-48.2 Benchmark ...... B 23 safe water ...... Q 130.5 Archipelagic Sea Lane (ASL) ...... M 17 Berth scientifi c mooring ...... Q r Areas ...... N anchor ...... N 11.1-11.2 special purpose ...... Q 50-63 pipes ...... L 40.2, L 41.2 designation ...... F 19.1, N 11.1-11.2, Q 42 Buried pipeline ...... L 42 restricted ...... M 14, N 2.1 visitors ...... F 19.2 Bushes ...... C o to be avoided ...... M 14, 29.1-29.2 yacht ...... F 11.2 C wire drag ...... I 24 Bifurcation buoy ...... Q h Cable Articulated Loading Column (ALC) ...... L 12 Bird sanctuary ...... N 22.1 buoy ...... Q 55 Artifi cial island ...... L 15 Black ...... j as, Q 2 distance, unit of ...... B 46 Ash, volcanic ...... J k Blind, duck ...... K j-k ferry ...... M 51 Astronomical tide ...... H 2-3 Blockhouse ...... E 34.2 landing beacon ...... Q 123 Automatic Identifi cation System (AIS) transmitter ...... S 17.2-17.2 Blue ...... J au, P 11.4 overhead ...... D 26-27, H 20 Awash, rock ...... K 12, a Board (leading beacon) ...... Q 102.2 submarine ...... L 30.1-32 Boarding place, pilot ...... T 1.1-1.4 Cableway (aerial) ...... D 25
112 Index
Cairn ...... Q 100 Cleared platform ...... L 22 topographic ...... C 10-12, H 20 Caisson ...... F 42 Clearing line ...... M 2 Control point ...... B 20-24 Calcareous ...... J 38 Clearing line beacon ...... Q 121 Conversion scales ...... A a Calling-in point ...... M 40.1 Cliffs ...... C 3 Conveyor ...... F g Calvary ...... E 12 Coal head ...... J i Copyright note ...... A 5 Camping site ...... E 37.1-37.2 Coarse ...... J 32 Coral ...... J 10, 22, K 16, h Can buoy ...... Q 21 Coast Coral reef Canal ...... F 40 fl at ...... C 5 always covers ...... K 16 distance mark ...... B 25.1-25.2 radar station ...... S 1 covers and uncovers ...... J 22 Candela ...... B 54 radio station providing QTG service ...... S 15 detached ...... K h Capitol ...... E t steep ...... C 3 Coralline algae ...... J 10 Cardinal Marks ...... Q 130.3 Coast Guard station ...... T 10-11 Corner coordinates ...... A 9 Cargo transhipment area ...... N 64 Coastline ...... C 1-8 Corporation ...... E v Castle ...... E 34.2 surveyed ...... C 1 Courthouse ...... E o Casuarina ...... C 31.6 unsurveyed ...... C 2 Covers ...... J 21-22, K 11, 16, 21 Cathedral ...... E 10.1 Cobbles ...... J 8 Crane ...... F 53.1-53.3 Causeway ...... F 3 Colored mark ...... Q 101 Crib ...... K i-j, L 43, b Cautionary notes ...... A 16 Colored topmark ...... Q 102.1 Cross ...... E 12 Cemetery ...... E 19 Colors Crossing gates ...... M 22 Centimeter ...... B 43 beacons ...... Q 2-5 Crossing, traffi c separation ...... M 23 Chalk ...... J f buoys ...... Q 2-5 Cubic meter ...... B b Channel ...... I 21-23 lights ...... P 11 Cultivated Chapel ...... E 11 topmarks ...... Q 2-5 fi elds ...... C l Chart COLREGS demarcation line ...... N a shellfi sh ...... K 47 datum ...... A 3, H 1, 20 Columbia River Datum ...... H j Cultural Features ...... D number ...... A 1- 2 Column ...... E 24 Cupola ...... E 10.4 reference to another ...... A 18-19 Company ...... E u Current ...... H 42-43 scale ...... A 13 Compass rose ...... B 70 diagram ...... H t title ...... A 10 Composite in restricted waters ...... H 42 Chemical dumping ground ...... N 24 group-fl ashing ...... P 10.4 meter ...... Q 59 Chemical pipeline ...... L 40.1-40.2 group-occulting ...... P 10.2 Customs Chimney ...... E 22 Conical buoy ...... Q 20 house ...... F 61 Chocolate ...... J ba Conifer ...... C 31.3, j limit ...... N 48 Church ...... E 10.1 Consol beacon ...... S 13 offi ce ...... F 61 dome ...... E 10.4 Conspicuous landmark ...... E 2 Cutting ...... D 14 spire ...... E 10.3 Conspicuous, radar ...... S 5 Cycles per second ...... B j tower ...... E 10.2 Container crane ...... F 53.2 Cylindrical buoy ...... Q 21 Cinders ...... J p Contiguous zone ...... N 44 Cypress buoy ...... C r Circular (non-directional) aeromarine radiobeacon ...... S 10 Continental shelf ...... N 46 D Circular (non-directional) marine radiobeacon ...... S 10 Continuous Dam ...... F 44 Cirripedia ...... J ae quick ...... P 10.6 Danger Clay ...... J 3 ultra quick ...... P 10.8 fi ring area ...... N 30, Q 50, 125 Clearance very quick ...... P 10.7 isolated mark ...... Q 130.4 horizontal ...... D 21 Contour line ...... K 1 safe vertical ...... D 26, i depth ...... I 30-31 signal station ...... T 35 vertical ...... D 20, 23.4, 23.6-28 drying ...... I 30 zone ...... Q 50
113 Index
Dangerous Development area ...... L 4 Duck blind ...... K j-k rock ...... K 13, 14.2 Deviation Dumping ground ...... N c, d, g wreck ...... K 28 dolphin ...... F 21 chemical waste ...... N 24 Dark ...... J bd magnetic ...... B 67 explosives ...... N 23.1-23.2 Data collection buoy ...... Q 58 DGPS correction transmitter ...... S 51 Dunes ...... C 8 Datum Diaphone ...... R 11 E chart ...... H 1, 20 Diatoms ...... J aa East ...... B 10 land survey ...... H 7 Diffuser ...... L 43 cardinal mark ...... Q 130.3 sounding reduction ...... H 1 Dike ...... F 1 Ebb tide stream ...... H 41 Daymark (dayboard) ...... Q 10, 80-81, 110, l Direction Eddies ...... H 45 Daytime light ...... P 51 of buoyage ...... Q 130.2 Edition note ...... A 6 Deadhead ...... K 43.2 fi nding, radio station ...... S 14 Eelgrass ...... J t Decayed ...... J an of fl ow ...... F 44 Elevation of light ...... H 20, P 13 Deciduous light ...... P 30.1-31 Ellipsoid ...... A 3 tree ...... C 31.1 of traffi c ...... M 10, 11, 26.1-26.2, 40.1 Embankment ...... D 15 woodland ...... C i Directional radiobeacon ...... S 11 Emergency wreck marking buoy ...... Q 63, Q 130.6 Decimeter ...... B 42 Directions, compass ...... B Entry prohibited area ...... N 2.2, 31 Decreasing ...... B 64 Discolored water ...... K e Environmentally Sensitive Sea Area (ESSA) ...... N 22 Deep water Dish aerial ...... E 31 Established (mandatory) direction of traffi c fl ow ...... M 10, d anchorage area ...... N 12.4 Disposition of lights ...... P 15 Eucalypt ...... C 31.8 route ...... M 27.1-27.3 Distance ...... B Evergreen ...... C 31.2 Degaussing range ...... N 25 along waterway ...... B 25.1-25.2 Example of buoy ...... Q 54 measured, beacons marking ...... Q 122 conspicuous landmarks ...... E 2 Degree ...... B 4, n Distress signal station ...... T 26 fog signal descriptions ...... R 20-22 Depth Disused full light description ...... P 16 charted ...... H 20 pipeline/pipe ...... L 44 landmarks ...... E 1 contours ...... I 30 platform ...... L 14 routing measures ...... M 18-29.2 maintained ...... I 23 submarine cable ...... L 32 Exclusive Economic Zone (EEZ) ...... N 47 minimum ...... K 46.2, M 27.2 Diurnal tide ...... H 30 Exercise area, submarine ...... N 33 observed ...... H 20 Dock Existence doubtful ...... I 1 out of position ...... I 11 dry, graving ...... F 25 Explanatory notes ...... A 11, 16 safe clearance ...... K 3, 30, f fl oating ...... F26 Explosive fog signal ...... R 10 swept ...... I 24, a, b, K 2, 27, 42, f wet ...... F 27 Explosives units used for ...... A b Dolphin ...... F 20-21 anchorage area ...... N 12.7 unknown ...... K 3, 13, 23, 28, 30, 40, L 21.1 Dome ...... E 30.4 dumping ground ...... N 23.1-23.2 Depths ...... I Doubtful Extinguished light ...... P 55 Derrick, oil ...... L 10 depth ...... I 2 Extraction area ...... N 63 Designation of existence ...... I l F beacon ...... Q 10 position ...... B 8 Factory ...... E d berth ...... F 19.1 Draft ...... M 6, N 12.4 Faint sector ...... P 45 buoy ...... Q 11 area ...... I 20-23 Fairway ...... M 18 platform ...... L 2 channel ...... I 20-23 Falling tide ...... H 30 reporting point ...... M 40.1 Dredging (extraction) area ...... N 63 Farm tidal stream, position of tabulated data ...... H 46 Drying marine ...... K 48.1-48.2 transit shed ...... F 51 contour ...... I 30 wave ...... L 6 Detector light ...... P 62 height ...... H 20, I 15 wind ...... L 5.2
114 Index
Fast ice, limit ...... N 60.1 Fog fl ashing ...... P 10.4 Fathom ...... B 48 detector light ...... P 62 occulting ...... P 10.2 Feet ...... B 47 light ...... P 52 quick ...... P 10.6 Fence ...... D g signals ...... R short fl ashing ...... P c Ferry ...... M 50-51 Foot ...... B 47 very quick ...... P 10.7 terminal, RoRo ...... F 50 Footbridge ...... D e Gulf Coast Low Water Datum ...... H k Filao ...... C 31.7 Foraminifera ...... J y Gulf Stream limits ...... H u Fine ...... J 30 Foreshore ...... C c Gun ...... R 10 Fireboat station ...... T c Form lines ...... C 13 H Firing Fort ...... E 34.2 Hachures ...... C f danger area ...... N 30 Fortifi ed structure ...... E 34.1 Harbor danger area beacon ...... Q 125 Foul installations ...... F 10-34 danger area buoy ...... Q 50 area ...... K o limit ...... N 49 practice signal station ...... T 36 ground ...... K 31.1-31.2 master’s offi ce ...... F 60 Fish Front light ...... P 23 Harbors ...... F haven ...... K 46.1-46.2 Fucus ...... J af Hard ...... J 39 marine farm ...... K 48.1-48.2 Full Moon ...... H s Health offi ce ...... F 62.1 trap ...... K 44.2-45, Q i G Height ...... H p weir ...... K 44.2 Gable ...... E i datum ...... H 7, 20 Fishery zone limit ...... N 45 Gas drying ...... H 20, I 15 Fishing pipeline ...... L 40.1 light (elevation of) ...... H 20, P 13 harbor ...... F 10 pipeline area ...... L 40.2 rocks ...... K 10-11 limit (fi sh trap areas) ...... N b Gasfi eld Name ...... L 1 spot ...... C 10-11, 13, H 20 prohibited ...... N 21.1 Gate ...... F 42 of structure ...... E 4-5 stakes ...... K 44.1 Geographical Positions ...... B 1-16 tide ...... H 20, P 13 Fixed Glacial ...... J ap of top of trees ...... C 14 bridge ...... D 22 Glacier ...... C 25 of wellhead ...... L 21.3 fl ashing, and ...... P 10.10, d Globigerina ...... J z Hertz ...... B g light ...... P10.1 Glossary ...... A e High Water ...... H 20, a point ...... B 22 Gong ...... R 16, Q b High Water Full and Charge ...... H h Flagstaff, Flagpole ...... E 27 Government House ...... E m Higher High Water ...... H 20, b Flare stack ...... E 23, L 11 Grass ...... C s, J v Highest Astronomical Tide (HAT) ...... H 3 Flashing light ...... P 10.4 Grassfi elds ...... C m Highway ...... D 10 Flat coast ...... C 5 area with ...... J 20 markers ...... D a Flinty ...... J ao Gravel ...... C c, J 6, 20 Hillocks ...... C 4 Float ...... Q s Graving dock ...... F 25 Horizontal Floating Gray ...... J bb light ...... P 15 barrier ...... F 29.1. 29.2 Green ...... J av, P 11.3, Q 2 Horizontal clearance ...... D 21 dock ...... F 26 Greenwich Meridian ...... B 3 Horizontally disposed ...... P 15 oil barrier ...... F 29.1 Gridiron ...... F 24 Horn ...... R 13 wind farm ...... L 5.2 Gritty ...... J am Hospital ...... E g, F 62.2 wind turbine ...... L 5.1 Groin ...... F 6.1, 6.3 Hour ...... B 49 Flood ...... H q Ground ...... J a Hulk ...... F 34, K 20-21, 23 barrage ...... F 43 tackle ...... Q 42 I tide (stream) ...... H 40 Group IALA Maritime Buoyage System ...... Q 130 Floodlit, fl oodlight ...... P 63 fi xed and fl ashing ...... P d
115 Index
Ice Landing range ...... P 14 boom ...... N 61 beacon (cable) ...... Q 123 sector ...... P 40.1-46 fast (ice front) ...... N 60.1 boats, for ...... F 17 special ...... P 60-66 sea ice (pack ice) seasonal ...... N 60.2 seaplanes, for ...... N 13 structures ...... P 1-7 signal station ...... T 30 stairs ...... F 18 synchronized ...... P 66 Illuminated ...... P 63 Landmarks ...... E times of exhibition ...... P 50-55 Imprint ...... A 4 Lane, submarine transit ...... N 33 vessel ...... P 6 Inadequately surveyed area ...... I 25 Large ...... J ai Light characters ...... P 10.1-10.11 Inch ...... B c Large Automatic Navigational Buoy (LANBY) ...... P 6, f Lighted Incineration area ...... N 65 Lateral marks (IALA System) ...... Q 130.1 beacon ...... P 4, Q o Increasing ...... B 65 Latitude ...... B 1 beacon tower ...... P 3 Indian Spring Low Water ...... H g Lattice beacon ...... Q 111 marks ...... Q 7-8 Inshore traffi c zone ...... M 25.1-25.2 Lava ...... C 26, J 9, l mooring buoy ...... Q 41 Installations, offshore ...... L Layout of chart ...... A offshore platform ...... P 2 Institute ...... E n Leading Lighthouse ...... P 1 Intake pipe ...... L 41.1-41.2, b beacons ...... Q 120 Lights ...... P Intense ...... P 46 lights ...... P 20.1-23 Lights exhibited only when specially needed ...... P 50 Intensifi ed sector ...... P 46 line ...... M 1 Lights in line ...... P 21 Intermittent river ...... C 21 Least depth ...... K 26-27, 30 Lights Marking Fairways ...... P 20.1-23 International in narrow channel ...... I 12 Lights with limited times of exhibition ...... P 50-55 boundary ...... N 40-41 Leisure facilities ...... U Limit of chart number ...... A 2 Levee ...... F 1 airport ...... N e meridian ...... B 3 Lifeboat ...... T 12-13 area feature in general ...... C q nautical mile, sea mile ...... B 45 mooring ...... T 13 area into which entry is prohibited ...... N 2.2, 31 Interrupted light ...... station ...... T 12 contiguous zone ...... N 44 quick ...... P 10.6 Lifting bridge ...... D 23.3 continental shelf ...... N 46 ultra quick ...... P 10.8 Light ...... J bc danger line ...... K 1 very quick ...... P 10.7 arc of visibility, with restricted ...... P 44 development area ...... L 4 Intertidal area ...... J 20-22 character ...... P 10.1-11.8 dredged area ...... I 20 Island, artifi cial ...... L 15 chart limits, off ...... P 8 Exclusive Economic Zone (EEZ) ...... N 47 Isogonic lines (Isogonals) ...... B 71 color ...... P 11.1-11.8 fast ice ...... N 60.1 Isolated danger mark ...... Q 130.4 description ...... P 16 fi shery zone ...... N 45 Isophase light ...... P 10.3 direction ...... P 30.1–31 fi shing area ...... N b J disposition ...... P 15 Gulf Stream ...... H u Jetty ...... F 14, a-c elevation ...... P 13 nature reserve ...... N 22 Joss house ...... E 15 exhibited only when specially needed ...... P 50 no discharge zone ...... N i K faint sector, with ...... P 45 restricted area ...... M 14, N 2.1 Kelp ...... J 13.1-13.2, u fl oat ...... P 6, Q 30-31 routing measure ...... M 14-15 Kilocycle ...... B k in line ...... P 21 safety zone ...... L 3 Kilohertz ...... B h intensifi ed sector, with ...... P 46 sea ice (pack ice) seasonal ...... N 60.2 Kilometer ...... B 40 landmarks, on ...... P 7 unsurveyed area ...... I 25 Knot ...... B 52, H o leading ...... P 20.1-23 Limited ...... E r L major fl oating ...... P 6 Linear scale ...... A 14-15 Lake ...... C 23 marking fairway ...... P 20.1-23 Local magnetic anomaly ...... B 81.1-82.2 LANBY ...... P 6, f Moiré effect ...... P 31 Lock ...... F 41.1-41.2 Land survey datum ...... H 7, 20 period ...... P 12 signal station ...... T 24
116 Index
Log pond ...... N 61 Marl ...... J c pile ...... F 22 Long-fl ashing light ...... P 10.5 Marsh ...... C 33 post ...... F 22 Longitude ...... B 2 Mast Minute Lookout radar ...... E 30.1 arc ...... B 5 pilot ...... T 2 radio, television ...... E 28 time ...... B 50 station ...... T e wreck ...... K 25 Mixed bottom ...... J 12.2 Low water ...... H 20, c Mattes ...... J ag Moiré effect light ...... P 31 line ...... I 30 Maximum Mole ...... F 12 Lower light ...... P 23 authorized draft ...... M 6 Monument ...... E 24 Lower low datum ...... H d speed ...... N 27 Moored storage tanker ...... L 17 Lower low water ...... H e Mean Mooring Lower water full & change ...... H i High Water (MHW) ...... H 5, 20, 30 berth number ...... Q 42 Lowest Astronomical Tide (LAT) ...... H 2 High Water Neaps (MHWN) ...... H 11 canal ...... F f M High Water Springs (MHWS) ...... H 9 ground tackle ...... L 18, Q 42 Madrepores ...... J j Higher High Water (MHHW) ...... H 13, 30 life boat ...... T 13 Magazine ...... E l Higher Low Water (MHLW) ...... H 14 numerous ...... Q 44 Magnetic ...... B 61 Low Water (MLW) ...... H 4, 20, 30 scientifi c mooring buoy ...... Q r anomaly ...... B 82.1-82.2 Low Water Neaps (MLWN) ...... H 10 Single Buoy (SBM) ...... L 16 compass ...... B 60-82.2 Low Water Springs (MLWS) ...... H 8 Single Point (SPM) ...... L 12 variation ...... B 60, 68-71 Lower High Water (MLHW) ...... H 15 trot ...... Q 42 Main light visible all-round ...... P 42 Lower Low Water (MLLW) ...... H 12, 20, 30 visitors’ ...... Q 45 Maintained depth ...... I 23 Sea Level (MSL) ...... H 6, 20 buoy ...... Q 40-45 Major tide level ...... H f lighted ...... Q 41 fl oating light ...... P 6 Measured Distance ...... Q 122 tanker ...... L 16 light ...... P 1 Medium ...... J 31 telegraphic ...... Q 43 light off chart limits ...... P 8 Megacycle ...... B l telephonic ...... Q 43 Manganese ...... J q Megahertz ...... B i Morse Code Mangrove ...... C 32 Meter ...... B 41 fog signal ...... R a Marabout ...... E 18 Microsecond ...... B f light ...... P 10.9 Marginal notes ...... A Mid-channel buoy ...... Q e Mosque ...... E 17 Marina ...... F 11.1 Mile Motorway ...... D 10 facilities ...... U a nautical (sea mile) ...... A 15, B 45 Mud ...... J 2 Marine statute ...... B 25, e Muslim shrine ...... E a farm ...... K 48.1-48.2 three nautical mile line ...... N h Mussels ...... J s reserve ...... N 22.3 Military area ...... N 30-34 N Maritime limit ...... N 1.1-1.2 Millimeter ...... B 44 National Marker ship buoy ...... Q 52 Minaret ...... E 17 limits ...... N 40-49 Marks Mine (explosive) ...... N 23.1 park ...... N 22 cardinal ...... Q 130.3 Mine (ore extraction) ...... E 36 Natural colored ...... Q 101 Minefi eld ...... N 34 features ...... C isolated danger ...... Q 130.4 Mine-laying practice area ...... N 32 watercourse ...... I 16 lateral ...... Q 130.1 Minor Nature lighted ...... Q 7-8 impermanent marks ...... Q 90-92 reserve ...... N 22 minor ...... Q 90-102.2 light ...... P 1, note after P 6 of the seabed ...... J safe water ...... Q 130.5 light fl oats ...... Q 30-31 Nautical mile ...... B 45 special ...... Q 130.6 marks ...... Q 100-102.2 Nautophone ...... R 13
117 Index
Neap tide ...... H 10-11, 17, 30-31 installation buoy, Catenary Anchor Leg Mooring (CALM) . . . . . L 16 Pipeline Nets, tunny ...... K 44.2-45 pipeline ...... L 40.1 buried ...... L 42.1 New pipeline area ...... L 40.2 land, on ...... D 29 edition date ...... A 6 Oilfi eld with name ...... L 1 overhead ...... D 28 moon ...... H r One-way track ...... M 5.1-5.2, 27.3 submarine ...... L 40.1-44 Nipa palm ...... C 31.5 Ooze ...... J b tunnel ...... L 42.2 No anchoring area ...... N 20 Opening bridge ...... D 23.1 Platform ...... L 2, 10,13-14, 22, P 2 No bottom found ...... I 13 Orange ...... J ax, P 11.7 cleared ...... L 22 No discharge zone ...... N i Ordnance, unexploded ...... K p submerged ...... K l Non-dangerous wreck ...... K 29 Outfall Point Non-directional radiobeacon ...... S 10 buoy ...... Q 57 base point for territorial sea baseline ...... N 42 Non-tidal basin ...... F 27 pipe ...... L 41.1-41.2 fi xed ...... B 22 North ...... B 9 Overfalls ...... H 44 Single Point Mooring (SPM) ...... L 12 cardinal mark ...... Q 130.3 Overhead symbols, position ...... B 32-33 Northeast ...... B 13 cable ...... D 27 triangulation ...... B 20 Northwest ...... B 15 pipe ...... D 28 Pole ...... Q 90 Notes ...... A 11, 16 transporter ...... D 25 Police station, marine ...... T b Notice board ...... Q 126, T d Oysters ...... J r Polyzoa ...... J ad Notice to mariners ...... A 7 P Pontoon ...... F 16 Nun buoy ...... Q 20 Pack ice, limit ...... N 60.2 bridge ...... D 23.5 O Pagoda ...... E 14 Port Obelisk ...... E 24 Painted board ...... Q 102.2 pilotage service, with ...... T 4 Obscured sector ...... P 43 Palm ...... C 31.4 signal station ...... T 21-23 Observation Park ranger station ...... T g Ports ...... F platform ...... L 13 Particularly Sensitive Sea Area (PSSA) ...... N 22 Position spot ...... B 21 Patent slip ...... F 23 accurate ...... B 2, E 2 Obstruction ...... K 40-48.2 Path ...... D 12 approximate ...... B 7, E 2 light, air ...... P 61.1-61.2 Pavilion ...... E p of buoy or beacon ...... Q 1 Occasional light ...... P 50 Pebbles ...... J 7 doubtful ...... B 8 Occulting light ...... P 10.2 Perch ...... Q 91 of fog signal ...... R 1 Ocean current ...... H 43 Period of light ...... P 12 of pilot cruising vessel ...... T 1.1-1.3 ODAS buoy ...... L 25, Q 58 Pictorial sketches ...... E 3.1-3.2 tidal levels ...... H 47 Offi ce Pier ...... F 14 tidal stream data ...... H 46 customs ...... F 61 promenade ...... F 15 Positions ...... B harbor master’s ...... F 60 ruined ...... F 33.2 symbolized ...... B 30-33 health ...... F 62.1 Pile ...... F 22 Post ...... F 22, K 43.1 pilot ...... T 2-3 submerged ...... K 43.1-43.2 offi ce ...... F 63 quarantine ...... F e Pillar submerged ...... K 43.1 Offshore buoy ...... Q 23 Power Installations ...... L monument ...... E 24 overhead cable ...... D 26, H 20 platform, lighted ...... P 2 Pilot ...... T 1-4 submarine cable ...... L 31.1-31.2 position, tidal levels ...... H 47 boarding place ...... T 1.1-1.3 transmission line ...... D h Ogival buoy ...... Q 20 helicopter transfer ...... T 1.4 Practice area (military) ...... N 30-34 Oil look out ...... T 2 Precautionary area ...... M 16, M 24 barrier ...... F 29.1-29.2 offi ce ...... T 2-3 Preferred channel buoy ...... Q 130.1 derrick ...... L 10 Pilotage ...... T 1-4
118 Index
Private transponder beacons on fl oating marks ...... S 3.6 Research platform ...... L 13 buoy ...... Q 70 tower ...... E 29 Reservation line ...... N f light ...... P 65 Radio ...... S 10-18.2 Reserve fog signal ...... R 22 Production direction-fi nding station ...... S 14 Reserved anchorage area ...... N 12.9 platform ...... L 10 mast ...... E 28 Resilient beacon ...... P 5 well ...... L 20 reporting line ...... M 40.2 Restricted Prohibited reporting point, calling-in or way point ...... M 40.1 area ...... M 14, N 2.1, 20-27 anchoring ...... N 20 station, QTG service ...... S 15 light sector ...... P 44 area ...... N 2.2, 31 Radiobeacon ...... S 10-16 Retrorefl ecting material ...... Q 6 diving ...... N 21.2 Radiolaria ...... J ab Riprap ...... P a fi shing ...... N 21.1 Radome ...... E 30.4 River ...... C 20 Promenade pier ...... F 15 Railway ...... D 13, b intermittent ...... C 21 Protective structures ...... F 1-6.3 station ...... D 13 Road ...... D 10-11 Pteropods ...... J ac Ramark ...... S 2 Rock ...... J 9.1, K 10-15, a-b Public Buildings ...... F 60-63 Ramp ...... F 23 Rocket station ...... T 12 Publication note ...... A 4 Range ...... P 14 Rocky ...... J 9.1 Pumice ...... J m Rapids ...... C 22 area which covers and uncovers ...... J 21 Pump-out facilities ...... F d Rate ...... H n Roll-on, Roll-off ferry terminal (RoRo) ...... F 50 Pylon ...... D 26, E 29 Rear light ...... P 22 Rotating-pattern radiobeacon ...... S 12 Q Reclamation area ...... F 31 Rotten ...... J aj QTG service ...... S 15 Reclamation ...... F 31 Roundabout ...... M 21, d-e Qualifying Terms ...... J 30-39 Recommended Route ...... M 27.1-28.2 Quarantine deep water track ...... M 27.3, a-b Routing Measures ...... M 18-29.2 anchorage area ...... N 12.8 direction of traffi c fl ow ...... M 11, 26.1- 26.2, 28.1 Rubble ...... C e building, health offi ce ...... F 62.1 route ...... M 28.1 Ruin ...... D 8, F 33.1 offi ce ...... F e track ...... M 3-4, 6 Ruined Quarry ...... E 35.1-35.2 Recreation zone buoy ...... Q 62 landmark ...... D 8 Quartz ...... J g Red ...... J ay, P 11.2, Q 3 pier ...... F 33.2 Quay ...... F 13 Reed beds ...... C 33 S Quick light ...... P 10.6 Reef ...... J 22, K 16, g-h Safe R Reference to clearance depth ...... K 3, 30, f Races ...... H 44 adjoining chart ...... A 19 vertical clearance ...... D 26, i Racon ...... S 3 charted units ...... A b water mark ...... Q 130.5 Radar larger-scale chart ...... A 18 Safety beacon ...... S 2-3.6 Refl ector, radar ...... Q 10-11, S 4 fairway ...... M 18 conspicuous feature ...... S 5 Refuge zone ...... L 3 dome (radome) ...... E 30.4 beacon ...... Q 124 Sailing club ...... F 11.3 mast ...... E 30.1 for shipwrecked mariners ...... T 14 Salt pans ...... C 24 range ...... M 31 Regions, IALA ...... Q 130.1 Sand ...... J 1 reference line ...... M 32.1-32.2 Relief ...... C 10-14 Sandhills ...... C 8 refl ector ...... Q 10-11, S 4 Reported Sandwaves ...... J 14 scanner ...... E 30.3 anchorage ...... N 10 Sandy shore ...... C 6 station ...... S 1 danger ...... I 4 Satellite Navigation Systems ...... S 50-51 surveillance system ...... M 30-32.2 depth ...... I 3.1-4 Scale ...... A 13-15 tower ...... E 30.2 Reporting, radio ...... M 40.1-40.2 Scanner, radar ...... E 30.3 transponder beacon, racon ...... S 3 Rescue station ...... T 11-12 Schist ...... J h
119 Index
School ...... E f Shoal sounding on rock ...... K b ground buoy ...... Q 56 Scoriae ...... J o Shore, shoreline ...... C 1-8 Sponge ...... J t Scrubbing grid ...... F 24 Short-long fl ashing ...... P b Spot height ...... C 11-13, H 20 Sea Signal Spring ice limit ...... N 60.2 fog ...... R tide ...... H 16, 30-31 mile (nautical mile) ...... A 15, B 45 stations ...... T 20-36 seabed ...... J 15 Seabed, types of ...... J 1-15, a-bf Silo ...... E 33 Square Seal Silt ...... J 4 meter ...... B a chart producer ...... A 12 Single shaped beacon ...... Q l sanctuary ...... N 22.2 Anchor Leg Mooring (SALM) ...... L 12 Stake ...... K 43.2, Q 90 Seaplane Buoy Mooring (SBM) ...... L 16 Station anchorage ...... N 14 Point Mooring (SPM) ...... L 12 Coast Guard ...... T 10-11 anchorage buoy ...... Q 60 Sinker ...... K n coast radar ...... M 30, S 1 landing area, operating area ...... N 13 Siren ...... R 12 DGPS, providing corrections ...... S 51 Seasonal Sketches ...... E 3.1-3.2 QTG, providing radio service ...... S 15 buoy ...... Q 70-71 Slack water ...... H 31 radar surveillance ...... M 30 sea ice limit ...... N 60.2 Slipway ...... F 23 radio direction fi nding ...... S 14 Sea-tangle ...... J w Small ...... J ah railway ...... D 13 Seawall ...... F 2.1-2.2 Small craft rescue ...... T 11-12 Seaward limit of leisure facilities ...... U signal ...... T 20-36 contiguous zone ...... N 44 mooring ...... Q 44 tide ...... H 30 territorial sea ...... N 43 Snag ...... K 43.2 Statue ...... E 24 Second Soft ...... J 35 Statute mile ...... B e of arc ...... B 6 Sounding ...... I 10-16 Steep coast ...... C 3 of time ...... B 51 doubtful depth ...... I 2 Steps ...... F 18 Sector lights ...... P 40.1-46 out of position ...... I 11 Sticky ...... J 34 See adjoining chart ...... A 19 unreliable ...... I 14 Stiff ...... J 36 Semaphore ...... T f Source diagram ...... A 17 Stock number ...... A d Semi-diurnal tide ...... H 30 South ...... B 11 Stones ...... J 5 Separation cardinal mark ...... Q 130.3 area with ...... J 20 line ...... M 12 Southeast ...... B 14 Stony shore ...... C 7 scheme ...... M 10-13, 20.1-29.2, d Southwest ...... B 16 Storage tanker ...... L 17 zone ...... M 13 Spar buoy ...... Q 24 Storm signal station ...... T 28 Services ...... T Special Straight territorial sea baseline ...... N 42 Settlements ...... D 1-8 lights ...... P 60-66 Streaky ...... J ak Sewer ...... L 41.1-41.2 marks ...... Q 130.6 Stream ...... C 20, H l, I c Shading ...... C g purpose beacon ...... Q 120-126 tidal signal station ...... T 34 Shapes of buoys ...... Q 20-26 purpose buoy ...... Q 50-63 tidal table ...... H 31, 46 Shark nets ...... N 61 Speckled ...... J al tide ...... H 40-41 Shed, transit ...... F 51 Speed limit ...... N 27 Street ...... D 7 Sheerlegs ...... F 53.3 Spherical buoy ...... Q 22 Street ...... D 7 Shellfi sh bed ...... K 47 Spicules ...... J x Strip light ...... P 64 Shells ...... J 11 Spindle buoy ...... Q 24 Stumps of piles/posts ...... K 43.1-43.2 Shingle ...... J d Spire ...... E 10.3 Submarine Shingly shore ...... C 7 Spoil cable ...... L 30.1-32 Shinto shrine ...... E 15 ground ...... N 62.1-62.2 cable area ...... L 30.2
120 Index
exercise area ...... N 33 Telegraphic mooring buoy ...... Q 43 Track ...... D 12, M 1-6, 27 pipeline ...... L 40-44 Telephone ...... E q Traffi c power cable ...... L 31.1 line ...... D 27 separation scheme (TSS) ...... M 10-15, 20-26.2 power cable area ...... L 31.2 Telephonic mooring buoy ...... Q 43 basic symbols ...... M 10-15, d transit lane ...... N 33 Television buoy ...... Q 61 volcano ...... K d mast ...... E 28 example ...... M 20.1-29.2, f Submerged station ...... E 27 signal station ...... T 21-22, 25.1 crib ...... K i tower ...... E 29 surveillance station ...... M 30 duck blind ...... K k Temple ...... E 13 Training wall ...... F 5 jetty ...... F b Temporary Transhipment platform ...... K l buoy (seasonal) ...... Q 71 area ...... N 64 production well ...... L 20 light ...... P 54 facilities ...... F 50-53.3 rock, beacon on ...... Q 83 Tenacious ...... J aq Transit well (buoyed) ...... L a Terms relating to tidal levels ...... H 1-17, a-k lane (submarine) ...... N 33 wreck ...... K 22-23 Territorial sea ...... N 42-43 line ...... M 2 Subsidiary light ...... P 42 Tidal shed ...... F 51 Subsurface Ocean Data Acquisition System (ODAS) ...... L 25 basin ...... F 28 Transmission line ...... D 26-27, h Sunken harbor ...... F 28 Transmitter, AIS ...... S 17.1-17.2 danger (swept) ...... K f levels ...... H 1-17, 20 Transponder beacon...... S 3.1-3.6 wreck ...... K c stream Transporter Superbuoy ...... Q 26 signal station ...... T 34 bridge ...... D 24 Supply pipeline ...... L 40.1-40.2 station ...... H 46 overhead (aerial cableway) ...... D 25 Surveyed table ...... A g, H 31 Trap, fi sh ...... K 44.2-45, i coastline ...... C 1 table ...... H 31 Travelling crane ...... F 53.1 inadequately ...... I 25 streams and currents ...... H 40-47 Trees Suspended well ...... L 21.1-21.2 table ...... H 30 height of top ...... C 14 Swamp ...... C 33 Tide types of ...... C 31-32, i-k Swept gauge ...... T 32.1-32.2 Triangular shaped beacon ...... Q l area ...... I 24, b level terms ...... H 1-17, a-k Triangulation point ...... B 20 channel ...... I a rips ...... H 44 Trot, mooring ...... Q 42 wire drag, by ...... K 2, 27, 42, f scale ...... T 32.1 True ...... B 63 Swing bridge ...... D 23.2 signal station ...... T 33 True (compass) ...... B 63 Swinging circle ...... N 11.2 Timber yard ...... F 52 Tufa ...... J n Symbolized positions ...... B 30-33 Time Tun buoy ...... Q 25 Synchronized light ...... P 66 signal station ...... T 31 Tunnel ...... D 16 T units of ...... B 49-51 pipeline ...... L 42.2 Tanker Tomb ...... E b Tunney nets ...... K 44.2-45 anchorage area ...... N 12.5 Ton, tonnage, tonne (weight) ...... B 53, m area ...... K 45 CALM ...... L 16 Topmark ...... Q 9-11, 102.1 Turbine storage, moored ...... L 17 Tower ...... E 20 wind ...... E 26.1, L 5.1 Target buoy ...... Q 51 beacon ...... P 3, Q 110-111 underwater ...... L 24 Tank ...... E 32 church ...... E 10.2 Two-way Target ...... Q 51 radar ...... E 30.2 route ...... M 27.2, 28.1-28.2 Telegraph radio ...... E 29 track ...... M 4, 5.2 line ...... D 27 television ...... E 29 Tyfon ...... R 13 station ...... T 27 water ...... E 21
121 Index
Types of W under construction, works in progress ...... F 32 fog signals ...... R 10-16 Wall, training ...... F 5 World Geodetic System (WGS) ...... S 50 seabed, intertidal areas ...... J 20-22 Warehouse ...... F 51 Wreck ...... K 20-30, c U Water buoy ...... Q h Ultra quick light ...... P 10.8 discolored ...... K e emergency wreck marking buoy ...... Q 63, Q 130.6 Uncovers ...... K 11, 21, h features ...... C 20-26 mast ...... K 25 Under construction ...... F 30-32 intake ...... L 41.1-41.2 Y Underwater pipeline ...... L 40.1, 41.1 Yacht installations ...... L 20-25 pipeline area ...... L 40.2, L 41.2 berths without facilities ...... F 11.2 rock ...... K 13-15 tank ...... E 21 club ...... F 11.3 turbine ...... L 24 tower ...... E 21 Yard ...... B d Uneven ...... J bf Waterfalls ...... C 22 timber ...... F 52 Unexploded ordinance ...... K p Watermill ...... E c Yellow ...... J aw, P 11.6 Units ...... A b, B 40-54 Wave Z University ...... E h actuated fog signal ...... R 21-22 Zone Unsurveyed farm ...... L 6 Exclusive Economic (EEZ) ...... N 47 coastline ...... C 2 recorder buoy ...... Q 59 fi shing ...... N 45 depths ...... I 25 Way point ...... M 40.1 inshore traffi c ...... M 25.1-25.2 Unwatched, unmanned light ...... P 53, e Weather signal station ...... T 29 seaward, contiguous ...... N 44 Update ...... A 7 Weed ...... J 13.1-13.2 separation ...... M 13, 20.1-20.3, e Upper light ...... P 22 Weir, fi sh ...... K 44.2 Urban area ...... D 1 Well ...... E e V submerged ...... L a Variation, magnetic ...... B 60, 68.1-71 suspended ...... L 21 Varied ...... J be production ...... L 20 Various limits ...... N 60.1-65 Wellhead ...... L 21.3, 23 Vegetation ...... C 30-33, i-t West ...... B 12 Velocity ...... H n cardinal mark ...... Q 130.3 Vertical Wet dock ...... F 27 clearance ...... D 20, 23.4, 23.6-28 Wharf ...... F 13 color stripes ...... Q 5 Whistle ...... R 15 lights ...... P 15 buoy ...... Q c Vertically disposed ...... P 15 White ...... J ar, P 11.1 Very quick light ...... P 10.7 Wind Vessel, light ...... P 6 farm ...... E 26.2, L 5.2 Viaduct ...... D f signal station ...... T 29 Views ...... E 3.1-3.2 turbine ...... E 26.1, L 5.1 Village ...... D 4 Windmill ...... E 25.1-25.2 Violet ...... J at, P 11.5 Withy ...... Q 91-92 Virtual AIS ...... S 18.1-18.2 Woodland Visitor’s coniferous ...... C j berth ...... F 19.2 deciduous ...... C i mooring ...... Q 45 Woods, wooded ...... C 30 Volcanic ...... J 37 Works ash ...... J k at sea, (reclamation area) ...... F 31 Volcano ...... K d on land ...... F 30
122 123 Appendix 1 IALA Maritime Buoyage System
Region A Lateral Marks
Port Hand Starboard Hand Preferred Channel Preferred Channel to Starboard to Port
BUOYAGE BUOYAGE DIRECTION DIRECTION
red Color green red with one green horizontal band Color green with one red horizontal band
cylindrical (can), pillar, spar Buoy conical (nun), pillar, spar cylindrical (can), pillar, spar Buoy conical (nun), pillar, spar
single red cylinder (can) Topmark (if any) single green cone, point upward single red cylinder (can) Topmark (if any) single green cone, point upward
Lights (if any): may have any phase characteristic other than that used for preferred channels Lights (if any): are composite group fl ashing
Quick Flashing Fl (2+1)
Flashing
Long Flashing
Group Flashing
124 IALA Maritime Buoyage System Appendix 1
Region B Lateral Marks
Port Hand Starboard Hand Preferred Channel Preferred Channel to Starboard to Port
BUOYAGE BUOYAGE DIRECTION DIRECTION
green Color red green with one red horizontal band Color red with one green horizontal band
cylindrical (can), pillar, spar Buoy conical (nun), pillar, spar cylindrical (can), pillar, spar Buoy conical (nun), pillar, spar
single green cylinder (can) Topmark (if any) single red cone, point upward single green cylinder (can) Topmark (if any) single red cone, point upward
Lights (if any): may have any phase characteristic other than that used for preferred channels Lights (if any): are composite group fl ashing
Quick Flashing Fl (2+1)
Flashing
Long Flashing
Group Flashing
125 Appendix 1 IALA Maritime Buoyage System
Cardinal Marks in Regions A and B
Lights, when fi tted, are white.
N
NW
NE
VQ
or Q
POINT OF W INTEREST E
VQ (9) 10s VQ (3) 5s
or Q (9) 15s or Q (3) 10s
SE SW VQ (6) + L Fl 10s
or Q (6) + L Fl 15s
S
126 IALA Maritime Buoyage System Appendix 1
Regions A and B
Isolated Danger Marks Safe Water Marks Special Marks
Color black with one or more red horizontal band(s) Color red and white vertical stripes Color yellow
optional, but not confl icting with lateral marks; Buoy Buoy spherical, pillar or spar Buoy optional, but not confl icting with lateral marks pillar or spar preferred
Topmark (if any) always fi tted with double spheres Topmark (if any) single red sphere Topmark (if any) single yellow “X” shape
Lights (if any) Lights (if any) Lights (if any)
Color white Color white Color yellow
Rhythm group fl ashing Rhythm Iso Rhythm Fl Y
Oc Fl (4) Y
L Fl 10s May have any rhythm other than those used for white lights on cardinal, isolated danger or safe Morse “A” water marks.
127 128 Record of Corrections
Notice No. Corrected on Corrected by Notice No. Corrected on Corrected by Notice No. Corrected on Corrected by
129 Section Key
INT 500 Mercator Projection A Chart Number, Title and Marginal Notes 412 6FDOHDW/DWƍ 7th Ed., Mar. 5/09 DEPTHS IN METERS
0 LOCAL MAGNETIC ANOMALY 350 10 B Positions, Distances, Directions and Compass (see note) 0
C Natural Features Marsh
clr 20.0 FIXED BRIDGE Cultural Features Tel HOR CL 25 FT D VERT CL 20 FT
E Landmarks TANK (202) F Ports 1
Overhead power 10 11 0 cable Tide rips 9 1 Safe vertical clearance 2.5 kn 8 2 (magenta) 3.0 kn Tides and Currents (see Note) 7 3 Charted vertical H 6 clearance 5 4
8915 Unsurveyed 30 FEET 13 Depths APR 2011 10 I 13 12 10 119 17 J Nature of the Seabed Gravel Rock K Rocks, Wrecks and Obstructions 35 Rk Crib
“Name” Fl.Y Prod Well Pipe L Offshore Installations (cov 24ft) Crib Well DW VHF 80 M Tracks and Routes Ra
Disposal Area 92 Log boom Areas and Limits Depths from survey N of 2010 85
RED Fl.WRG.4s Lights 21m 18-12M
P GREEN
R Bn RG Bn Q Buoys and Beacons R Q(6)+LFI 15s Fl 3s 70m 29M Fog Signals BELL HORN(1) 15s R WHIS SIREN Mo(N) 60s
CONSOL Bn Radar, Radio and Satellite Navigation Systems 190 kHz S MMF
T Services NWS SIG STA U Small Craft (Leisure) Facilities