Alpine Decree
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Glossary Glossary
Glossary Glossary Albedo A measure of an object’s reflectivity. A pure white reflecting surface has an albedo of 1.0 (100%). A pitch-black, nonreflecting surface has an albedo of 0.0. The Moon is a fairly dark object with a combined albedo of 0.07 (reflecting 7% of the sunlight that falls upon it). The albedo range of the lunar maria is between 0.05 and 0.08. The brighter highlands have an albedo range from 0.09 to 0.15. Anorthosite Rocks rich in the mineral feldspar, making up much of the Moon’s bright highland regions. Aperture The diameter of a telescope’s objective lens or primary mirror. Apogee The point in the Moon’s orbit where it is furthest from the Earth. At apogee, the Moon can reach a maximum distance of 406,700 km from the Earth. Apollo The manned lunar program of the United States. Between July 1969 and December 1972, six Apollo missions landed on the Moon, allowing a total of 12 astronauts to explore its surface. Asteroid A minor planet. A large solid body of rock in orbit around the Sun. Banded crater A crater that displays dusky linear tracts on its inner walls and/or floor. 250 Basalt A dark, fine-grained volcanic rock, low in silicon, with a low viscosity. Basaltic material fills many of the Moon’s major basins, especially on the near side. Glossary Basin A very large circular impact structure (usually comprising multiple concentric rings) that usually displays some degree of flooding with lava. The largest and most conspicuous lava- flooded basins on the Moon are found on the near side, and most are filled to their outer edges with mare basalts. -
Highway Conditions Introduction
Chapter 4 Highway Conditions Introduction The Ebbetts Pass National Scenic Byway (NBS) began as a trail that American Indians most likely used for trade and a hunting access route, and was later utilized by fur trappers. By the early to mid 1800’s pioneers and miners crossed over the pass. With the discovery of silver and the demand for more supplies to be delivered to the region, so came improvements to the road. Today, the highway itself is managed and maintained by the California Department of Transportation (CalTrans). The road twists you further into the mountains narrowing with no centerline near Lake Alpine as it separates both the Carson-Iceberg and Mokelumne Wildernesses, luring the traveler farther away from society. The journey takes one both physically and psychologically closer to wildness. Beyond the crest of Ebbetts Pass, the descent winds through a rugged volcanic landscape overlooking the canyons below. This asphalt ribbon transitions back to a distinct, 2-lane highway with a centerline when you reach the floor of Silver Creek, just east of Silver Creek Campground. This portion of the byway is steep, narrow, and windy, and is not suitable for semi trucks, buses, and most Recreational Vehicles (RV’s). It is best left for smaller vehicle travel. Average Daily Traffic CalTrans collects data annually that reflects the number of vehicles that travel along Highway 4 in a given month. This data is compiled into average annual daily traffic counts (AADT). AADT numbers are calculated using electronic highway counters, determining the yearly figure and dividing by 365 days/year. -
5.1 Historic Period Human Interaction with the Watershed
Upper Carson River Watershed Stream Corridor Assessment 5. Human Interaction With the Watershed 5.1 Historic Period Human Interaction With the Watershed The purpose of this section is to summarize human activities that have had some effect on the Carson River watershed in Alpine County, California. Regional prehistory and ethnography are summarized by Nevers (1976), Elston (1982), d’Azevedo (1986), and Lindstrom et al. (2000). Details of regional history can be found in Maule (1938), Jackson (1964), Dangberg (1972), Clark (1977), Murphy (1982), Marvin (1997), and other sources. A book published by the Centennial Book Committee (1987) contains an excellent selection of historic photographs. Particularly useful is a study on the historical geography of Alpine County by Howatt (1968). 5.1.1 Prehistoric Land Use Human habitation of the Upper Carson River Watershed extends thousands of years back into antiquity. Archaeological evidence suggests use of the area over at least the last 8,000 to 9,000 years. For most of that time, the land was home to small bands of Native Americans. Their number varied over time, depending on regional environmental conditions. For at least the last 2,000 years, the Washoe occupied the Upper Carson River Watershed. Ethnographic data provides clues as to past land use and land management practices (see extended discussions in Downs 1966; Blackburn and Anderson 1993; Lindstrom et al. 2000; Rucks 2002). A broad range of aboriginal harvesting and hunting practices, fishing, and camp tending would have affected the landscape and ecology of the study area. Shrubs such as service berry and willow were pruned to enhance growth. -
California Water Trust Network
RESTORING CARSON MEADOWS: ASSESSMENT AND PRIORITIZATION A report supported by the National Fish and Wildlife February 2018 Foundation Results of a broadly-collaborative effort to prioritize meadows in the Carson River Watershed for restoration. Restoring Carson Meadows Restoring Carson Meadows: Assessment and Prioritization Julie Fair, Luke Hunt, Meg Hanley and Jacob Dyste 2018. Restoring Carson Meadows: Assessment and Prioritization. A report by American Rivers submitted to the National Fish and Wildlife Foundation. Page 1 Restoring Carson Meadows CONTENTS CONTENTS ........................................................................................................................... 2 INTRODUCTION ................................................................................................................... 3 THE CARSON WATERSHED .................................................................................................. 4 METHODS ............................................................................................................................ 5 RESULTS AND DISCUSSION OF CONDITION DATA ............................................................ 7 PRIORITIES ........................................................................................................................... 9 PRIORITIZATION FOR LAHONTAN CUTTHROAT TROUT ................................................. 14 INFLUENCE OF BEAVER ..................................................................................................... 14 CONCLUSION -
Glossary of Lunar Terminology
Glossary of Lunar Terminology albedo A measure of the reflectivity of the Moon's gabbro A coarse crystalline rock, often found in the visible surface. The Moon's albedo averages 0.07, which lunar highlands, containing plagioclase and pyroxene. means that its surface reflects, on average, 7% of the Anorthositic gabbros contain 65-78% calcium feldspar. light falling on it. gardening The process by which the Moon's surface is anorthosite A coarse-grained rock, largely composed of mixed with deeper layers, mainly as a result of meteor calcium feldspar, common on the Moon. itic bombardment. basalt A type of fine-grained volcanic rock containing ghost crater (ruined crater) The faint outline that remains the minerals pyroxene and plagioclase (calcium of a lunar crater that has been largely erased by some feldspar). Mare basalts are rich in iron and titanium, later action, usually lava flooding. while highland basalts are high in aluminum. glacis A gently sloping bank; an old term for the outer breccia A rock composed of a matrix oflarger, angular slope of a crater's walls. stony fragments and a finer, binding component. graben A sunken area between faults. caldera A type of volcanic crater formed primarily by a highlands The Moon's lighter-colored regions, which sinking of its floor rather than by the ejection of lava. are higher than their surroundings and thus not central peak A mountainous landform at or near the covered by dark lavas. Most highland features are the center of certain lunar craters, possibly formed by an rims or central peaks of impact sites. -
Carson River Geographic Response Plan
Carson River Geographic Response Plan Final Alpine County, California and Douglas, Carson City, Lyon, Churchill Counties, Nevada April 2006 Prepared by: Carson & Walker Rivers Area Committee (CWRAC) Carson River Geographic Response Plan April 2006 Acknowledgements The Carson River Geographic Response Plan (CRGRP) was developed through a collaborative effort between the local, state, and federal government agencies listed below. Local Government • Carson City Fire • Douglas County Emergency Management • East Fork Fire and Paramedic District • Lyon County Sheriff’s Office • Mason Valley Fire • Mono County Conservation District State Government • California Department of Fish and Game, Office of Spill Prevention and Response • California Office of Emergency Services • Nevada Division of Emergency Management • Nevada Division of Environmental Protection • Nevada Highway Patrol Tribal Government • Washo Tribe Federal Government • U.S. Bureau of Land Management • U.S. Department of Agriculture Carson Valley Conservation District • U.S. Environmental Protection Agency (EPA) Region IX o U.S. EPA Region IX Superfund Technical Assessment and Response Team (START), Ecology & Environment, Inc. • U.S. Fish and Wildlife Service i Carson River Geographic Response Plan April 2006 If this is an Emergency… …Involving a release or threatened release of hazardous materials, petroleum products, or other contaminants impacting public health and/or the environment Most important – Protect yourself and others! Then: 1) Turn to the Immediate Action Guide (Yellow Tab) for initial steps taken in a hazardous material, petroleum product, or other contaminant emergency. 2) Make the initial notification to Dispatch by dialing 911. Dispatch will make the Mandatory Notifications. A list of county dispatch centers is on page R-2 of this plan. -
Facts & Features Lunar Surface Elevations Six Apollo Lunar
Greek Mythology Quadrants Maria & Related Features Lunar Surface Elevations Facts & Features Selene is the Moon and 12 234 the goddess of the Moon, 32 Diameter: 2,160 miles which is 27.3% of Earth’s equatorial diameter of 7,926 miles 260 Lacus daughter of the titans 71 13 113 Mare Frigoris Mare Humboldtianum Volume: 2.03% of Earth’s volume; 49 Moons would fit inside Earth 51 103 Mortis Hyperion and Theia. Her 282 44 II I Sinus Iridum 167 125 321 Lacus Somniorum Near Side Mass: 1.62 x 1023 pounds; 1.23% of Earth’s mass sister Eos is the goddess 329 18 299 Sinus Roris Surface Area: 7.4% of Earth’s surface area of dawn and her brother 173 Mare Imbrium Mare Serenitatis 85 279 133 3 3 3 Helios is the Sun. Selene 291 Palus Mare Crisium Average Density: 3.34 gm/cm (water is 1.00 gm/cm ). Earth’s density is 5.52 gm/cm 55 270 112 is often pictured with a 156 Putredinis Color-coded elevation maps Gravity: 0.165 times the gravity of Earth 224 22 237 III IV cresent Moon on her head. 126 Mare Marginis of the Moon. The difference in 41 Mare Undarum Escape Velocity: 1.5 miles/sec; 5,369 miles/hour Selenology, the modern-day 229 Oceanus elevation from the lowest to 62 162 25 Procellarum Mare Smythii Distances from Earth (measured from the centers of both bodies): Average: 238,856 term used for the study 310 116 223 the highest point is 11 miles. -
Carson River Aquatic Trail Plan August 4, 2006
DRAFT Carson River Aquatic Trail Plan August 4, 2006 DRAFT Prepared for: CARSON CITY PARKS AND RECREATION DEPARTMENT 3303 Butti Way, Building #9 Carson City, Nevada 89701 Prepared by: RESOURCE CONCEPTS, INC. 340 N. Minnesota Street Carson City, NV 89703-4152 Carson River Aquatic Trail Plan August 4, 2006 DRAFT Prepared for: CARSON CITY PARKS AND RECREATION DEPARTMENT 3303 Butti Way, Building #9 Carson City, Nevada 89701 Prepared by: RESOURCE CONCEPTS, INC. 340 N. Minnesota Street Carson City, NV 89703-4152 DRAFT Table of Contents Page 10.0 CARSON RIVER AQUATIC TRAIL...........................................................................1 10.1 GENERAL DESCRIPTION OF THE CARSON RIVER..................................................................... 1 10.1.1 River Hydrology ............................................................................................................... 1 10.1.2 General River Terminology.............................................................................................. 3 10.1.3 River Anatomy and Common River Hazards.................................................................... 4 10.1.4 Hazardous Dams on the Carson River............................................................................. 5 10.2 JURISDICTION .......................................................................................................................... 5 10.2.1 The State of Nevada.......................................................................................................... 5 10.2.2 Property -
Lunar Distances Final
A (NOT SO) BRIEF HISTORY OF LUNAR DISTANCES: LUNAR LONGITUDE DETERMINATION AT SEA BEFORE THE CHRONOMETER Richard de Grijs Department of Physics and Astronomy, Macquarie University, Balaclava Road, Sydney, NSW 2109, Australia Email: [email protected] Abstract: Longitude determination at sea gained increasing commercial importance in the late Middle Ages, spawned by a commensurate increase in long-distance merchant shipping activity. Prior to the successful development of an accurate marine timepiece in the late-eighteenth century, marine navigators relied predominantly on the Moon for their time and longitude determinations. Lunar eclipses had been used for relative position determinations since Antiquity, but their rare occurrences precludes their routine use as reliable way markers. Measuring lunar distances, using the projected positions on the sky of the Moon and bright reference objects—the Sun or one or more bright stars—became the method of choice. It gained in profile and importance through the British Board of Longitude’s endorsement in 1765 of the establishment of a Nautical Almanac. Numerous ‘projectors’ jumped onto the bandwagon, leading to a proliferation of lunar ephemeris tables. Chronometers became both more affordable and more commonplace by the mid-nineteenth century, signaling the beginning of the end for the lunar distance method as a means to determine one’s longitude at sea. Keywords: lunar eclipses, lunar distance method, longitude determination, almanacs, ephemeris tables 1 THE MOON AS A RELIABLE GUIDE FOR NAVIGATION As European nations increasingly ventured beyond their home waters from the late Middle Ages onwards, developing the means to determine one’s position at sea, out of view of familiar shorelines, became an increasingly pressing problem. -
Carson River Watershed Adaptive Stewardship Plan, Part 1
CARSON RIVER WATERSHED “Our Lifeline in the Desert” Adaptive Stewardship Plan Prepared by: CarsonCarson WaterWater SSubconservancyubconservancy DDistrictistrict Alpine County, California Carson City, Nevada Churchill County, Nevada Douglas County, Nevada Lyon County, Nevada CarsonCarson RiverRiver CoalitionCoalition CarsonCarson ValleyValley ConservationConservation DistrictDistrict DaytonDayton ValleyValley ConservationConservation DistrictDistrict WesternWestern NevadaNevada ResourceResource ConservationConservation andand DevelopmentDevelopment NaturalNatural ResourcesResources ConservationConservation ServiceService LyonLyon CountyCounty GISGIS DepartmentDepartment C.G.C.G. CelioCelio andand SonsSons Co.Co. Prepared for: U.S. Environmental Protection Agency Nevada Division of Environmental Protection - Water Quality Planning June 2006 DRAFT CARSON RIVER WATERSHED “Our Lifeline in the Desert” Adaptive Stewardship Plan Prepared by: Carson Water Subconservancy District Alpine County, California Carson City, Nevada Churchill County, Nevada Douglas County, Nevada Lyon County, Nevada Lyon County GIS Department Carson Valley Conservation District Dayton Valley Conservation District Western Nevada Resource Conservation and Development Natural Resource Conservation Service C.G. Celio and Sons Co. In Cooperation with: Carson River Coalition Prepared for: U.S. Environmental Protection Agency Nevada Division of Environmental Protection - Water Quality Planning May 2007 Carson River Watershed Stewardship Plan ACKNOWLEDGEMENTS The following were -
IAU Information Bulletin No. 104
CONTENTS IAU Information Bulletin No. 104 Preface ..................................................................................................................... 4 1. EVENTS & DEADLINES ............................................................ 5 2. REMINISCENCES OF PAST IAU PRESIDENTS ............... 7 2.1. Adriaan Blaauw, 18th IAU President, 1976 - 1979 ............................ 7 2.2. Jorge Sahade, 21st IAU President, 1985 - 1988 .............................. 10 2.3. Yoshihide Kozai, 22nd IAU President, 1988 - 1991 ....................... 12 2.4. Lodewijk Woltjer, 24th President, 1994 - 1997 ................................. 14 2.5. Robert P. Kraft, 25th IAU President, 1997 - 2000 .......................... 15 2.6. Franco Pacini, 26th President, 2000 - 2003 ...................................... 16 3. IAU EXECUTIVE COMMITTEE 3.1. Officers’ Meeting 2009-1, Paris, France, 6 April 2009 .................... 18 3.2. 85th Executive Committee Meeting, Paris, France, 7 - 8 April 2009 18 4. THE EC WORKING GROUP ON THE INTERNATIONAL YEAR OF ASTRONOMY 2009 4.1. Status report ......................................................................................... 20 5. IAU GENERAL ASSEMBLIES 5.1. IAU XXVII General Assembly, 3-14 August 2009, Rio de .......... 24 Janeiro, Brazil 5.1.1. Inaugural Ceremony, First Session, Second Session and ................. 24 Closing Ceremony 5.1.2. Proposal for modification of Statutes and Bye-Laws ....................... 27 5.1.2.1 Proposal for modification of Statutes ............................................... -
Upper Carson River Watershed Stream Corridor Condition Assessment
Upper Carson River Watershed Stream Corridor Condition Assessment Prepared For: Alpine Watershed Group and the Sierra Nevada Alliance P. O. Box 7989 South Lake Tahoe, CA 96158 Prepared By: MACTEC Engineering and Consulting Swanson Hydrology & Geomorphology 1572 East College Parkway, Suite 162 115 Limekiln Road Carson City, Nevada 89706 Santa Cruz, California 95062 River Run Consulting C. G. Celio & Sons P.O. Box 8538 P.O. Box 734 Truckee, California 96162 Minden, Nevada 89423 June, 2004 Upper Carson River Watershed Stream Corridor Condition Assessment Copies of this report may be requested from: SIERRA NEVADA ALLIANCE P. O. BOX 7989 SOUTH LAKE TAHOE, CA 96158 (530) 542-4546 MACTEC ENGINEERING & CONSULTING 1572 EAST COLLEGE PARKWAY, SUITE 162 CARSON CITY, NEVADA 89706 (775) 888-9992 Funding for this project has been provided in full or in part through a contract with the State Water Resources Control Board (SWRCB) pursuant to the Costa-Machado Water Act of 2000 (Proposition 13) and any amendments thereto for the implementation of California’s Nonpoint Source Pollution Control Program. The contents of this document do not necessarily reflect the views and policies of the SWRCB, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. Upper Carson River Watershed Stream Corridor Assessment ACKNOWLEDGEMENTS The Upper Carson River Watershed Stream Corridor Condition Assessment project was performed by a consulting team comprised of MACTEC Engineering and Consulting, River Run Consulting, Swanson Hydrology & Geomorphology, and C.G. Celio & Sons. MACTEC acted as the prime contractor, working directly with representatives of the Alpine Watershed Group and the Sierra Nevada Alliance.