gov.noaa.ncei:DS0708_EK60 eng; USA utf8 series Water Column Sonar Series-Level Metadata NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2026-03-10 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) curve 3208 World Geodetic System 1984 WGS 84 2007-08-27 revision https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:crs:EPSG::4326 Vertical Datum: Unknown Vertical Datum: Unknown EK60 Water Column Sonar Data Collected During DS0708 2007-08-26 creation 2026-03-10 publication NOAA National Centers for Environmental Information DS0708_EK60 International DOI Foundation (IDF) doi:10.25921/ntvy-c246 NOAA National Centers for Environmental Information NCEI Metadata ID:DS0708_EK60 NOAA National Centers for Environmental Information custodian NOAA National Centers for Environmental Information publisher David Demer NMFS/SWFSC AST Supervisor/Senior Scientist 858-546-5603 8901 La Jolla Shores Drive La Jolla CA 92037 USA david.demer@noaa.gov principalInvestigator NOAA National Marine Fisheries Service Southwest Fisheries Science Center 858-546-7000 8901 La Jolla Shores Dr. La Jolla CA 92037 USA author On 26 August, 2007, David Starr Jordan dropped anchor off Shelter Island, San Diego Bay, for approximately 6 hrs to calibrate the echosounders (Simrad EK60). Immediately following the calibration, the ROV was launched to test buoyancy and system functions. Then, the multi-beam transducer was installed on the pole and the pole was mounted on the ship’s port-side. The ship then proceeded to the 43 Fathom Bank. The multi-frequency echosounder survey and ROV transects took priority over all other activities. The echosounder surveys were conducted between sunrise and sunset. The ROV was deployed between sunrise and approximately 1730. The CTD casts and the recoveries of the passive-acoustic loggers were also conducted during daylight hours. The multi-beam transects and the deployments of the passive-acoustic loggers were conducted exclusively at nighttime. The 43 Fathom Bank site was surveyed twice during Leg I and once each during Legs II, III and IV, for a total of 5 replicates. At the beginning of Leg I, a long-duration passive acoustic logger (AURAL) was deployed at the 43 Fathom Bank. This logger was recovered at the end of Leg IV. Additionally, during nighttime hours of Leg I only, multi-beam surveys were conducted at 109 Seamount, and 43 Fathom, Cortes, and Tanner Banks. At night during Legs II-IV, the ship 1) deployed the CTD, 2) deployed passive-acoustic loggers, and 3) transited to the next survey segment and was staged to begin the next echosounder survey segment or ROV transect at sunrise. Multiple-frequency echosounders (Simrad EK60s) were used to sample grids with 0.2 n.mi. transect spacing (0.1 n.mi. for smaller sites) at 47 sites in the SCB. These areas and waypoints were selected from the results of the COAST 2003 and 2004 surveys, and the collective records from multiple Fishing Masters in the commercial fleet (courtesy of Ken Franke). Surveys were conducted between sunrise and sunset (approximately 1400 to 0100 GMT, 0700 to 1800 PST, or 11 hrs per day off daylight savings time or approximately 1245 to 0245 GMT, 0545 to 1945 PST, or 13.5-14 hrs per day; PST=GMT-7 hrs. during daylight savings), at a nominal speed of 7-10 kts. The total trackline, with 0.2 n.mi. transect spacing (0.1 n.mi. for smaller sites), totaled approximately 2654 n.mi.. The rockfishes and seabed in each area were mapped using the backscatter data. Report Link: https://discover.library.noaa.gov/permalink/01NOAA_INST/1uosbql/alma991001553014607381 This data set represents a second, refined COAST survey of rockfishes throughout the Southern California Bight (SCB). The 2007 COAST survey was conducted on the NOAA Ship David Starr Jordan in four legs, each approximately 15 days in duration: Leg I, 8/26-9/9; Leg II, 9/13-9/27; Leg III, 10/1-10/15; and Leg IV, 10/19-10/31 out of the San Diego port. Ultimately, it will be necessary to combine the repeated estimates of rockfish distributions and abundances in the Southern California Bight (SCB) with measures of the dynamics and environmental influences of rockfish recruitment processes and the dispersion or redistribution of recruits from protected to harvested areas. Such collective knowledge will provide a basis for a longer term and broader spatial-scale assessment of rockfish, and assure the effectiveness of the protected areas in the Southern California Bight (SCB). The goal of the multi-frequency echosounder survey was to map the distributions of rockfishes in each of 47 selected areas of the SCB using the Collaborative Optical-Acoustic Survey Technique (COAST). Then, combining this information with the estimates of species proportions and their length distributions from the optical measurements, estimate the abundances of rockfishes in the Southern California Bight (SCB), by species. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA National Centers for Environmental Information Water Column Sonar Data Manager (303) 497-4742 325 Broadway, Mail Code E/NE42 Boulder CO 80305-3328 USA wcd.info@noaa.gov pointOfContact notPlanned Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering Earth Science > Oceans > Aquatic Sciences > Fisheries Earth Science > Oceans > Ocean Acoustics Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic Earth Science > Biosphere > Ecosystems > Marine Ecosystems Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. 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URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Gulf of California place International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) 2010-08-24 revision International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) https://iho.int/ International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) Publication of Sea Areas is maintained by IHO. information resourceProvider DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Vertical Location > Water Column place Global Change Master Directory (GCMD) Location Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System instrument Global Change Master Directory (GCMD) Instrument Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: NOAA Southwest Fisheries Science Center. 2026. EK60 Water Column Sonar Data Collected During DS0708. NOAA National Centers for Environmental Information. https://doi.org/10.25921/ntvy-c246 [access date] otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Not subject to copyright protection within the United States. otherRestrictions Resource may not be available for up to one year after initial collection. DS0708 largerWorkCitation operation eng; USA oceans geoscientificInformation -120.64283 -117.19883 32.00067 34.16217 2007-08-26T00:00:00 2007-10-31T11:59:59 Trackline physicalMeasurement NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor Free Contact the NCEI Water Column Sonar Data Manager to order data. EK60 1 Simrad EK60 raw files. See the Simrad EK60 interface specification manual for additional information. https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=DS0708&instruments=EK60 HTTPS Water Column Sonar Data Map Viewer Interactive map viewer to allow discovery and access to water column sonar data search https://registry.opendata.aws/ncei-wcsd-archive/ HTTPS AWS Cloud Storage Bucket AWS Cloud Storage to provide additional public access to water column sonar data through the NOAA Open Data Dissemination project (NODD) download https://www.ngdc.noaa.gov/mgg/wcd/ HTTPS Water Column Sonar Data Archive Homepage Web page containing information on the water column sonar data archive. information collectionHardware 26-Aug-2007 Instrument calibration information Calibrated w/o calibration data series Horizontal Positional Accuracy Positional accuracy dependent on navigation GPS, ship motion correction, and sound velocity profile accuracy. true Vertical Positional Accuracy Vertical accuracy is dependent on navigation GPS and ship motion corrections. true Raw unprocessed data files 2007-08-26T00:00:00 David Demer NMFS/SWFSC AST Supervisor/Senior Scientist 858-546-5603 8901 La Jolla Shores Drive La Jolla CA 92037 USA david.demer@noaa.gov principalInvestigator Simrad EK60 Echosounder EK60 Simrad - Kongsberg Maritime AS +47 3303 4000 (Norway) +47 3304 2987 (Norway) P.O. Box 111 Strandpromenaden 50 Horten 3191 Norway contact@simrad.com resourceProvider Simrad EK60 singlebeam The Simrad EK60 Scientific Sounder system is a new generation fishery researchtool, based on experience from the EK500. The new electronic hardware is combined with up to date PC processing and Windows operation. The EK60 provides facilities for accurate echo sounding, data storage, data analysis and reporting results. The system communication is through Ethernet, which gives flexibility in the location of the EK60 system units and allows easy access to data from other instruments or stations on a vessel network. A post processing software, BI60, is also included in the EK60 system. DS0708_EK60 completed NOAA Ship David Starr Jordan (R444) David Starr Jordan The David Starr Jordan was designed and built for the U.S. Bureau of Commercial Fisheries, which later became part of the National Oceanic and Atmospheric Administration, for the purpose of fisheries research in the tropical Pacific. The David Starr Jordan logged over a million miles while studying the biological and physical oceanography of the southwestern U.S. coast and the eastern tropical Pacific. David Starr Jordan was an integral part of the marine mammal surveys conducted by the Protected Resources Division of the NOAA National Marine Fisheries Service's Southwest Fisheries Science Center until her decommissioning on August 3rd, 2010. Office of Marine and Aviation Operations 206-553-2246 NOAA/OMAO/MOC-P 1801 Fairview Avenue East Seattle WA 98102-3767 USA CO.MOC.Pacific@noaa.gov pointOfContact NOAA National Marine Fisheries Service Southwest Fisheries Science Center 858-546-7000 8901 La Jolla Shores Dr. La Jolla CA 92037 USA pointOfContact Simrad EK500 Echosounder EK500 Simrad - Kongsberg Maritime AS +47 3303 4000 (Norway) +47 3304 2987 (Norway) P.O. Box 111 Strandpromenaden 50 Horten 3191 Norway contact@simrad.com https://www.kongsberg.com/contentassets/9bcb8e2fac0044e6a065f6aca5385db4/043774ad_ek500_installation_manual_english_complete.pdf Simrad EK500 Scientific echo sounder Information on the Simrad EK500 including file format documentation information resourceProvider Simrad EK500 singlebeam The EK500 is a triple frequency scientific echo sounder with a range of available single frequency transducers. This echo sounder was widely used by NOAA Marine fisheries researchers until its replacement by the Simrad EK60 echo sounder Simrad EK60 Echosounder EK60 Simrad - Kongsberg Maritime AS +47 3303 4000 (Norway) +47 3304 2987 (Norway) P.O. Box 111 Strandpromenaden 50 Horten 3191 Norway contact@simrad.com http://www.simrad.com/www/01/nokbg0240.nsf/AllWeb/A25148D8E9F00D0DC12570DE0050A7CB?OpenDocument Simrad EK60 Scientific echo sounder Information on the Simrad EK60 including file format documentation. information resourceProvider Simrad EK60 singlebeam The Simrad EK60 Scientific Sounder system is a new generation fishery researchtool, based on experience from the EK500. The new electronic hardware is combined with up to date PC processing and Windows operation. The EK60 provides facilities for accurate echo sounding, data storage, data analysis and reporting results. The system communication is through Ethernet, which gives flexibility in the location of the EK60 system units and allows easy access to data from other instruments or stations on a vessel network. A post processing software, BI60, is also included in the EK60 system.