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Chinese Mooring and Buoy Observations in the Open-Ocean
Chinese mooring and buoy observations in the open-ocean Chujin Liang Second Institute of Oceanography, SOA May 28, 2013 Seoul Main oceanographic institutions of China First Institute of Oceanography Qingdao State Oceanic Administration Second Institute of Oceanography Hangzhou /SOA Third Institute of Oceanography Xiamen Polar Institute of China ShanghaiFirst Institute of Oceanography, FIO Institute of Oceanography Qingdao Chinese Academy of Science /CAS South China Sea Institute of Oceanography GuangzhouSecond Institute of Oceanography, SIO China Ocean University, Xiamen University Qingdao/Third Institute of Oceanography,Ministry of Education TIO Xiamen Tongji University, East China Normal university, Shanghai/ Tsinghua University, Peiking University, etc. Beijing Second Institute of Oceanography State Oceanic Administration State Oceanic Administration, SOA First Institute of Oceanography, FIO Second Institute of Oceanography, SIO Third Institute of Oceanography, TIO Second Institute of Oceanography State Oceanic Administration FIO is operating 2 buoy stations and 1 mooring at 2 sites Long-term buoy station in eastern Indian Ocean operated by FIO FIO-AMFR 中国 海洋一所 FIO Progress Report 1. Surface buoy at (100E, 8S) • In place since 30 May 2010 • Daily data will be posted on PMEL and FIO website soon • Data includes the meteorological parameters: wind speed and direction, air temperature, relative humidity, air pressure, shortwave radiation, long wave radiation, unfortunately precipitation missed due to damage in the deployment • Data includes -
Washington Division of Geology and Earth Resources Open File Report
l 122 EARTHQUAKES AND SEISMOLOGY - LEGAL ASPECTS OPEN FILE REPORT 92-2 EARTHQUAKES AND Ludwin, R. S.; Malone, S. D.; Crosson, R. EARTHQUAKES AND SEISMOLOGY - LEGAL S.; Qamar, A. I., 1991, Washington SEISMOLOGY - 1946 EVENT ASPECTS eanhquak:es, 1985. Clague, J. J., 1989, Research on eanh- Ludwin, R. S.; Qamar, A. I., 1991, Reeval Perkins, J. B.; Moy, Kenneth, 1989, Llabil quak:e-induced ground failures in south uation of the 19th century Washington ity of local government for earthquake western British Columbia [abstract). and Oregon eanhquake catalog using hazards and losses-A guide to the law Evans, S. G., 1989, The 1946 Mount Colo original accounts-The moderate sized and its impacts in the States of Califor nel Foster rock avalanches and auoci earthquake of May l, 1882 [abstract). nia, Alaska, Utah, and Washington; ated displacement wave, Vancouver Is Final repon. Maley, Richard, 1986, Strong motion accel land, British Columbia. erograph stations in Oregon and Wash Hasegawa, H. S.; Rogers, G. C., 1978, EARTHQUAKES AND ington (April 1986). Appendix C Quantification of the magnitude 7.3, SEISMOLOGY - NETWORKS Malone, S. D., 1991, The HAWK seismic British Columbia earthquake of June 23, AND CATALOGS data acquisition and analysis system 1946. [abstract). Berg, J. W., Jr.; Baker, C. D., 1963, Oregon Hodgson, E. A., 1946, British Columbia eanhquak:es, 1841 through 1958 [ab Milne, W. G., 1953, Seismological investi earthquake, June 23, 1946. gations in British Columbia (abstract). stract). Hodgson, J. H.; Milne, W. G., 1951, Direc Chan, W.W., 1988, Network and array anal Munro, P. S.; Halliday, R. J.; Shannon, W. -
OCEAN/ESS 410 1 Lab 3. the Juan De Fuca Plate Please Write out Your
OCEAN/ESS 410 Lab 3. The Juan de Fuca Plate Please write out your answers on a separate sheet of paper. In this exercise you are going to be looking at the bathymetry of the Juan de Fuca plate region, identifying interesting features and their characteristics, and attempting to interpret what you see. Some of the questions may be difficult for you to answer now (although hopefully not at the end of the Quarter) – part of the objective is to get you to look carefully at the maps and think rather that immediately writing down an answer. The Instructor and TAs will be coming around the lab answering questions. Figure 1 shows the plate boundaries for the Juan de Fuca plate region and you will use this as your road map as you explore the Juan de Fuca plate with the program GeoMapApp, a versatile program that is used by researchers to look at bathymetry and other seafloor data. To run GeoMapApp do the following 1. Start GeoMapApp on the lab computer from the Start menu or from the Desktop Icon if you have one. If it asks you to install a new version you do not have to. 2. Select the default Mercator Base Map (left hand map) 3. Learn to use the “Zoom In”, “Zoom Out” and “Pan the Map” tools. You can use the “Zoom In” tool either by clicking on the map or holding the mouse button down to rubber-band a box of interest. The Overlays menu allows you to add a Distance Scale and Color Bar. -
MBARI's Buoy Based Seafloor Observatory Design (PDF)
MBARI’s Buoy Based Seafloor Observatory Design Mark Chaffey, Larry Bird, Jon Mike Kelley, Lance McBride, Tom O’Reilly, Walter Paul*, Erickson, John Graybeal, Andy Ed Mellinger, Tim Meese, Mike Risi, and Wayne Hamilton, Kent Headley, Radochonski Monterey Bay Aquarium Research Institute * Dept. of Applied Ocean Physics and Engineering 7700 Sandholdt Road Woods Hole Oceanographic Institution Moss Landing CA 95039 Woods Hole, MA 02543 Abstract - There has been considerable discussion and planning in the oceanographic community toward the installation of long-term seafloor sites for scientific observation in the deep ocean. The Monterey Bay Aquarium Research Institute (MBARI) has designed a portable mooring system for deep ocean deployment that provides data and power connections to both seafloor and ocean surface instruments. The surface mooring collects solar and wind energy for powering instruments and transmits data to shore-side researchers using a satellite communications modem. A specialty anchor cable connects the surface mooring to a network of benthic instrumentation, providing the required data and power transfer. Design details and results of laboratory and field testing of the completed portions of the observatory system are described. I. INTRODUCTION Fig. 1 Buoy and seafloor network. MBARI has undertaken a major effort to develop the technology and techniques for building deep ocean of reliability, fault tolerance, and remote diagnostic seafloor observatories under the in-house Monterey capability. Ocean Observing System (MOOS) program. A key The overall functional and design requirements of the component of the overall observatory technology effort is MOOS mooring have previously been described in detail a moored surface buoy connected to the seafloor using [1] and can be summarized as a portable system, an anchor cable that incorporates mechanical strength configurable to a wide range of experiments, providing elements, copper conductors for power transfer, and episodic event response using on-board processing, and optical elements for communications. -
Recent Movements of the Juan De Fuca Plate System
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 89, NO. B8, PAGES 6980-6994, AUGUST 10, 1984 Recent Movements of the Juan de Fuca Plate System ROBIN RIDDIHOUGH! Earth PhysicsBranch, Pacific GeoscienceCentre, Departmentof Energy, Mines and Resources Sidney,British Columbia Analysis of the magnetic anomalies of the Juan de Fuca plate system allows instantaneouspoles of rotation relative to the Pacific plate to be calculatedfrom 7 Ma to the present.By combiningthese with global solutions for Pacific/America and "absolute" (relative to hot spot) motions, a plate motion sequencecan be constructed.This sequenceshows that both absolute motions and motions relative to America are characterizedby slower velocitieswhere younger and more buoyant material enters the convergencezone: "pivoting subduction."The resistanceprovided by the youngestportion of the Juan de Fuca plate apparently resulted in its detachmentat 4 Ma as the independentExplorer plate. In relation to the hot spot framework, this plate almost immediately began to rotate clockwisearound a pole close to itself such that its translational movement into the mantle virtually ceased.After 4 Ma the remainder of the Juan de Fuca plate adjusted its motion in responseto the fact that the youngest material entering the subductionzone was now to the south. Differencesin seismicityand recent uplift betweennorthern and southernVancouver Island may reflect a distinction in tectonicstyle betweenthe "normal" subductionof the Juan de Fuca plate to the south and a complex "underplating"occurring as the Explorer plate is overriddenby the continent.The history of the Explorer plate may exemplifythe conditionsunder which the self-drivingforces of small subductingplates are overcomeby the influenceof larger, adjacent plates. The recent rapid migration of the absolutepole of rotation of the Juan de Fuca plate toward the plate suggeststhat it, too, may be nearingthis condition. -
(Mooring – Tide Gauge) Is ~22 Mm
Updated Results from the In Situ Calibration Site in Bass Strait, Australia Christopher Watson1 , Neil White2,, John Church2 Reed Burgette1, Paul Tregoning 3, Richard Coleman 4 1 University of Tasmania ([email protected]) 2 Centre for Australian Weather and Climate Research, A partnership between CSIRO and the Australian Bureau of Meteorology 3 The Australian National University 4 The Institute of Marine and Antarctic Studies, UTAS OSTM/Jason-2 OST Science Team Meeting Updated Data Stream Presentation 1 San Diego OSTST Meeting October 2011 Impossible d'afficher l'image. Votre ordinateur manque peut-être de mémoire pour ouvrir l'image ou l'image est endommagée. Redémarrez l'ordinateur, puis ouvrez à nouveau le fichier. Si le x rouge est toujours affiché, vous devrez peut-être supprimer l'image avant de la réinsérer. Methods Recap Bass Strait • Primary site is located on Pass 088 in Bass Strait. Contributing bias estimates to the SWT/OSTST since the launch of T/P . • Secondary site along track in Storm Bay Storm Bay 2 Methods Recap • We adopt a purely geometric technique for determination of absolute bias. • The method is centred around the use of GPS buoys to define the datum ofhihf high preci si on ocean moori ngs. • Outside of available mooring data, all available mooring SSH data are used to correct tide gauge SSH to the comparison point. 3 Instrumentation (Bass Strait): Tide Gauge and CGPS • Tide gauge part of the Australian baseline array, located in Burnie. • Vertical velocity not significantly different from zero. • CGPS time series shows a quasi-annual periodic signal (amplitude ~3-4 mm). -
2021 Connecticut Boater's Guide Rules and Resources
2021 Connecticut Boater's Guide Rules and Resources In The Spotlight Updated Launch & Pumpout Directories CONNECTICUT DEPARTMENT OF ENERGY & ENVIRONMENTAL PROTECTION HTTPS://PORTAL.CT.GOV/DEEP/BOATING/BOATING-AND-PADDLING YOUR FULL SERVICE YACHTING DESTINATION No Bridges, Direct Access New State of the Art Concrete Floating Fuel Dock Offering Diesel/Gas to Long Island Sound Docks for Vessels up to 250’ www.bridgeportharbormarina.com | 203-330-8787 BRIDGEPORT BOATWORKS 200 Ton Full Service Boatyard: Travel Lift Repair, Refit, Refurbish www.bridgeportboatworks.com | 860-536-9651 BOCA OYSTER BAR Stunning Water Views Professional Lunch & New England Fare 2 Courses - $14 www.bocaoysterbar.com | 203-612-4848 NOW OPEN 10 E Main Street - 1st Floor • Bridgeport CT 06608 [email protected] • 203-330-8787 • VHF CH 09 2 2021 Connecticut BOATERS GUIDE We Take Nervous Out of Breakdowns $159* for Unlimited Towing...JOIN TODAY! With an Unlimited Towing Membership, breakdowns, running out GET THE APP IT’S THE of fuel and soft ungroundings don’t have to be so stressful. For a FASTEST WAY TO GET A TOW year of worry-free boating, make TowBoatU.S. your backup plan. BoatUS.com/Towing or800-395-2628 *One year Saltwater Membership pricing. Details of services provided can be found online at BoatUS.com/Agree. TowBoatU.S. is not a rescue service. In an emergency situation, you must contact the Coast Guard or a government agency immediately. 2021 Connecticut BOATER’S GUIDE 2021 Connecticut A digest of boating laws and regulations Boater's Guide Department of Energy & Environmental Protection Rules and Resources State of Connecticut Boating Division Ned Lamont, Governor Peter B. -
High-Silica Lava Morphology at Ocean Spreading Ridges: Machine-Learning Seafloor Classification at Alarcon Rise
Article High-Silica Lava Morphology at Ocean Spreading Ridges: Machine-Learning Seafloor Classification at Alarcon Rise Christina H. Maschmeyer 1,†, Scott M. White 1,*, Brian M. Dreyer 2 and David A. Clague 3 1 School of the Earth, Ocean and Environment, University of South Carolina, Columbia, SC 29208, USA; [email protected] 2 Institute of Marine Sciences, University of California, Santa Cruz, CA 95064, USA; [email protected] 3 Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039, USA; [email protected] † Now at: Fugro USA Marine, Inc. Geoconsulting Exploration, 6100 Hillcroft Ave, Houston, TX 77081, USA * Correspondence: [email protected] Received 31 March 2019; Accepted 28 May 2019; Published: 1 June 2019 Abstract: The oceanic crust consists mostly of basalt, but more evolved compositions may be far more common than previously thought. To aid in distinguishing rhyolite from basaltic lava and help guide sampling and understand spatial distribution, we constructed a classifier using neural networks and fuzzy inference to recognize rhyolite from its lava morphology in sonar data. The Alarcon Rise is ideal to study the relationship between lava flow morphology and composition, because it exhibits a full range of lava compositions in a well‐mapped ocean ridge segment. This study shows that the most dramatic geomorphic threshold in submarine lava separates rhyolitic lava from lower‐silica compositions. Extremely viscous rhyolite erupts as jagged lobes and lava branches in submarine environments. An automated classification of sonar data is a useful first‐order tool to differentiate submarine rhyolite flows from widespread basalts, yielding insights into eruption, emplacement, and architecture of the ocean crust. -
Winter 2006 Newsletter
DEEP OCEAN EXPLORATION INSTITUTE INVESTIGATING EARTH’S DYNAMIC PROCESSES Winter 2006 Newsletter the National Science Foundation. In undertaken by our students. Matt’s February 2006, I was asked to participate award by the AGU reflects the very high in a conference on the Oceans in the caliber of our students and acknowledges Nuclear Age at UC Berkeley, where their achievements. there was considerable discussion about The seafloor geodetic experiment the policy and science of nuclear waste being carried out by Jeff McGuire and disposal in the oceans – past and future. Mark Behn underscores how important Public and educational outreach is also technology development is to conducting a focus of DOEI through the Dive and world-class experiments on fundamental Discover™ Web site. Dive and Discover™ earth and ocean science problems. Their (http://www.divediscover.whoi.edu) experiment is unique. It will provide Dan and his able assistant Riley provides a fun and interactive educational not only crucial tests of hypotheses about Director’s Notes program for K-12 students and the how ocean island flanks deform, but their general public. In 2005, Dive and instrumentation will also play a major In 2005, DOEI funded six new Discover™ hosted Expedition 9, a revisit role in the understanding of oceanic research projects, with investigators to the Galapagos Rift that included Alvin transform behavior and, by analogy, how representing all WHOI departments dives and deep-sea camera exploration faults behave and how their movements and encompassing all of the Institute’s for hydrothermal vents. Currently, Dive may be better predicted. research themes - Seafloor Observatory and Discover™ Expedition 10 is ongoing As I write these notes, many investi- Science, Fluid Flow in Geologic Systems, in the Antarctic’s Southern Ocean. -
Updated Guidelines for Seadatanet ODV Production
EMODnet Thematic Lot n° 4 - Chemistry EMODnet Phase III Updated guidelines for SeaDataNet ODV production M. Lipizer, M. Vinci, A. Giorgetti, L. Buga, M. Fichault, J. Gatti, S. Iona, M. Larsen, R. Schlitzer, D. Schaap, M. Wenzer, E. Molina Date: 12/04/2018 EMODnet Thematic Lot n° 4 - Chemistry Updated guidelines for SDN ODV production Index EMODnet Phase III............................................................................................................................1 Updated guidelines for SeaDataNet ODV producton......................................................................1 Updated guidelines for SeaDataNet ODV producton..........................................................................1 Introducton......................................................................................................................................1 SeaDataNet ODV import format.......................................................................................................1 How to check your SeaDataNet ODV fle format?............................................................................6 Vocabulary........................................................................................................................................7 How to choose the correct P01?......................................................................................................8 Flagging of Data Below Detecton Limits and Data Below Limit of Quantfcatoni.......................13 Guidelines for SeaDataNet ODV producton for sediment -
Vertical Flow in the Southern Ocean Estimated from Individual Moorings
SEPTEMBER 2015 S É VELLEC ET AL. 2209 Vertical Flow in the Southern Ocean Estimated from Individual Moorings F. SÉVELLEC,A.C.NAVEIRA GARABATO,J.A.BREARLEY,* AND K. L. SHEEN Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, United Kingdom (Manuscript received 14 February 2014, in final form 26 March 2015) ABSTRACT This study demonstrates that oceanic vertical velocities can be estimated from individual mooring mea- surements, even for nonstationary flow. This result is obtained under three assumptions: (i) weak diffusion (Péclet number 1), (ii) weak friction (Reynolds number 1), and (iii) small inertial terms (Rossby number 1). The theoretical framework is applied to a set of four moorings located in the Southern Ocean. For this site, the diagnosed vertical velocities are highly variable in time, their standard deviation being one to two orders of magnitude greater than their mean. The time-averaged vertical velocities are demonstrated to be largely induced by geostrophic flow and can be estimated from the time-averaged density and hori- zontal velocities. This suggests that local time-mean vertical velocities are primarily forced by the time- mean ocean dynamics, rather than by, for example, transient eddies or internal waves. It is also shown that, in the context of these four moorings, the time-mean vertical flow is consistent with stratified Taylor column dynamics in the presence of a topographic obstacle. 1. Introduction motions, and rectified mesoscale eddy flows along sloping isopycnals (Marshall and Speer 2012, and ref- Oceanic vertical flow is an important element of the erences therein). The latter two mechanisms are believed ocean circulation, playing a central role in the re- to extensively underpin vertical flow in the Southern distribution of water and tracers between (and within) Ocean, a region hosting a prominent large-scale vertical the upper-ocean mixed layer and the ocean interior. -
In-Situ Calibration Results from Bass Strait
In-Situ Calibration Results from Bass Strait Christopher Watson1 Neil White2,3 Reed Burgette1 Richard Coleman1,2,3 Paul Tregoning 4 John Church2,3 Jason Zhang4 1 University of Tasmania 2 CAWCR and CSIRO CMAR 3 Antarctic Climate and Ecosystems CRC 4 The Australian National University Jason-1 and OSTM/Jason-2 OST Science Team Updated Results Seattle OSTST Meeting June 2009 Overview Bass Strait is an absolute calibration site that adopts a purely geometric technique. The method is centred around the use of GPS buoys to define the datum of high precision ocean moorings. Mooring SSH also used to correct tide gauge SSH to the comparison point. Altimeter vs mooring SSH and tide gauge SSH to determine absolute bias. Bass Strait Calibration Site 1. The comparison point has been moved further offshore to avoid land contamination of the radiometer. 2. Different buoy design, longer deployment duration. 3. New tide gauge and collocated CGPS. 4. New inland CGPS site on bedrock (~5km from the gauge). 5. New episodic GPS at Stanley to minimise baseline length to GPS buoys. 6. Three new ocean moorings (two consecutive six month deployments and one twelve month deployment spanning the previous two). 7. FTLRS campaign (assess benefit of additional southern hemisphere SLR). Bass Strait Calibration Site Instrumentation: New Gauge Tide Gauge Bedrock CGPS (5km away) • Tide gauge is part of the Australian baseline array, provision for a radar gauge to be installed later in 2009. Run by the Australian National Tidal Centre (NTC). • Collocated CGPS at TG. • Bedrock CGPS ~5km away at Round Hill (RHPT).