gov.noaa.ncei:BE201301_ES60_processed 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 2022-12-27 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) curve 2964 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 ES60 Water Column Sonar Data Collected During BE201301 2013-08-01 creation 2022-12-27 publication NOAA National Centers for Environmental Information BE201301_ES60_processed International DOI Foundation (IDF) doi:https://doi.org/10.25921/ffk8-8b11 NOAA National Centers for Environmental Information NCEI Metadata ID:BE201301_ES60_processed NOAA National Centers for Environmental Information custodian NOAA National Centers for Environmental Information publisher Alex De Robertis AFSC Research Fishery Biologist 7600 Sand Point Way NE Seattle WA 98115 USA principalInvestigator Chris Wilson DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center Supervisory Research Fish Biologist (206) 526-6435 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA chris.wilson@noaa.gov principalInvestigator DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center 206-526-4000 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA author A broad-scale, baseline acoustic-trawl surveys of pelagic fishes were conducted in late summer 2013 over the continental shelf of the ice-free U.S. northern Bering and Chukchi Seas on the F/V Bristol Explorer, a 55 m chartered fishing vessel. The goal of this work was to characterize the abundance and distribution of abundant pelagic fishes in the area to better understand the structure and function of these ecosystems. Fish species of interest included commercial subarctic species, which could expand northward in response to warming. The survey was conducted along 0.5 degree spaced transect lines from 59.75N to 73N between 170W and 157W. The primary water column acoustic instrument for the survey was a Simrad ES60 scientific echosounder equipped with a Simrad ES38-10 38 kHz transducer and ES120-7C 120 kHz transducer. The ship departed Dutch Harbor, AK on 01 August 2013, making intermediate port calls to Nome AK before ending in Dutch Harbor, AK on 29 September 2013. The echosounder was calibrated with a 38.1 mm tungsten-carbide sphere via the standard sphere method during the survey in the southern Chukchi Sea on 13 August 2013. The results of these surveys and further description of data collection are available in: De Robertis, A., Taylor, K., Wilson, C., and Farley, E. 2017. Abundance and Distribution of Arctic cod (Boreogadus saida) and other Pelagic Fishes over the U.S. Continental Shelf of the Northern Bering and Chukchi Seas Deep-Sea Research II, 135: 51-65. http://dx.doi.org/10.1016/j.dsr2.2016.03.002 The abundance and distribution of midwater fishes in the Pacific Arctic remains poorly understood. As there are no large-scale commercial fisheries in the U.S. Arctic north of the Bering Strait, broad-scale abundance surveys are not regularly conducted to inform fisheries management. Here we report on two, broad-scale, baseline acoustic-trawl surveys of pelagic fishes conducted in late summer 2012 and 2013 over the continental shelf of the ice-free U.S. northern Bering and Chukchi Seas. The goal of this work was to characterize the abundance and distribution of abundant pelagic fishes in the area. 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 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian Chukchi Sea 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 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian Vertical Location > Water Column place Global Change Master Directory (GCMD) Location Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System instrument Global Change Master Directory (GCMD) Instrument Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian otherRestrictions Cite as: NOAA Alaska Fisheries Science Center. 2022. ES60 Water Column Sonar Data Collected During BE201301. NOAA National Centers for Environmental Information. https://doi.org/10.25921/ffk8-8b11 [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. BE201301 largerWorkCitation operation Arctic Ecosystem Integrated Survey largerWorkCitation program eng; USA oceans geoscientificInformation -170.05888 -155.12192 53.8445 72.56519 2013-08-01T00:00:00 2013-09-29T11:59:59 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. ES60 1 Simrad ES60 processed files. See the Simrad ES60 interface specification manual for additional information. https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=BE201301&instruments=ES60 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 28-Sep-2012 Instrument calibration information Calibrated w/ 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 Processed data files 2013-08-01T00:00:00 Alex De Robertis AFSC Research Fishery Biologist 7600 Sand Point Way NE Seattle WA 98115 USA principalInvestigator series Acoustic backscatter at 38 and 120 kHz was measured using a split-beam Simrad ES60 echosounder equipped with hull-mounted ES38-10 and ES120-7C transducers at a depth of 3.7 m. Data were recorded and stored as Simrad EK60 formatted RAW files. Acoustic data were primarily collected at a ping rate of 2.5 s-1 and a pulse length of 0.512 milliseconds. During the deep (> 500 m) portions of the 2013 deep-water survey, data were collected at a ping rate of 0.4 s-1, and a pulse length of 1 millisecond at 120 kHz and 4 milliseconds at 38 kHz to improve the signal-to-noise ratio. The ES60 echosounder is subject to a systematic error that introduces a maximum amplitude error of ± 0.5 dB (± 12 % in linear units) which was corrected by fitting the error to the otherwise constant transmit pulse and correcting the raw acoustic data (See Demer et al., 2015, section 4.1.2). The echosounder was calibrated once during the cruise using the standard sphere technique (Demer et al., 2015). A text file (*.ecs) containing the parameters used to process both shallow and deep settings (De Robertis et al., 2017) are provided. Demer, D. A., Berger, L., Bernasconi, M., Bethke, E., Boswell, K., Chu, D., Domokos, R. et al. 2015. Calibration of acoustic instruments. ICES Cooperative Research Report No. 326. 133 pp. Simrad ES60 Echosounder ES60 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.simrad.online/ek60/ref_english/default.htm Simrad EK60 information Information on the Simrad ES60 including file format documentation. information resourceProvider Simrad ES60 singlebeam The Simrad ES60 is an echo sounder capable of single, dual or split beam configurations. It is designed as a professional fish finder for fishing vessels and for fisheries surveys onboard research vessels. It can operate four echo sounder frequencies simultaneously ranging from 12 to 200 kHz, which allows it to both locate and identify separate fish species. Real time echo integration and target strength analysis in an unlimited number of layers is provided as well as storage of raw data for replay or analysis in post-processing software packages. BE201301_ES60_processed completed Bristol Explorer Bristol Explorer BRISTOL EXPLORER is a Fishing vessel built in 1982 by VT HALTER MARINE MOSS POINT - MOSS POINT MS, U.S.A.. Currently sailing under the flag of United States (USA). Formerly also known as BPISTOLEXPLORAR, BRJSTOLEXPLORER, SEA CO QUEEN. It's gross tonnage is 727 tons. Simrad ES60