EK60-ek5 Water Column Sonar Data Collected During SH1904
Acoustic-Trawl Surveys of Walleye Pollock (Gadus chalcogrammus) in the Gulf of Alaska (SH2019-04). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA Fisheries, Alaska Fisheries Science Center (AFSC) conducted acoustic-trawl (AT) stock assessment surveys in the Shelikof Strait, Chirikof shelf break,and Marmot Bay areas of the Gulf of Alaska (GOA) in the late winter/early spring of 2019 to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus). This survey was conducted aboard NOAA Ship Bell M. Shimada, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation. The primary acoustic instrument for the survey was a Simrad EK60 split-beam echosounder system utilizing five frequencies (18, 38, 70, 120, and 200 kHz). The vessel departed Kodiak, Alaska on 6 March and conducted an acoustic system calibration in Kalsin Bay, Kodiak Island 7 March. The Shelikof Strait was conducted 7-16 March, the Chirikof shelf break sure was conducted 16-18 March, and the Marmot Bay survey was conducted 19-20 March. A post-cruise acoustic system calibration was conducted 20-21 March in Kalsin Bay and the vessel arrived in Kodiak, Alaska on 21 March.
Resources
6 resources available
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Water Column Sonar Data Map Viewer
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AWS Cloud Storage Bucket
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Water Column Sonar Data Archive Homepage
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Global Change Master Directory (GCMD) Keywords
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International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
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NCEI Contact Information
TEXT/HTML
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{ "fn": "NOAA National Centers for Environmental Information", "@type": "vcard:Contact", "hasEmail": "mailto:ncei.info@noaa.gov" } |
| describedByType | application/octet-steam |
| description | Acoustic-Trawl Surveys of Walleye Pollock (Gadus chalcogrammus) in the Gulf of Alaska (SH2019-04). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA Fisheries, Alaska Fisheries Science Center (AFSC) conducted acoustic-trawl (AT) stock assessment surveys in the Shelikof Strait, Chirikof shelf break,and Marmot Bay areas of the Gulf of Alaska (GOA) in the late winter/early spring of 2019 to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus). This survey was conducted aboard NOAA Ship Bell M. Shimada, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation. The primary acoustic instrument for the survey was a Simrad EK60 split-beam echosounder system utilizing five frequencies (18, 38, 70, 120, and 200 kHz). The vessel departed Kodiak, Alaska on 6 March and conducted an acoustic system calibration in Kalsin Bay, Kodiak Island 7 March. The Shelikof Strait was conducted 7-16 March, the Chirikof shelf break sure was conducted 16-18 March, and the Marmot Bay survey was conducted 19-20 March. A post-cruise acoustic system calibration was conducted 20-21 March in Kalsin Bay and the vessel arrived in Kodiak, Alaska on 21 March. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Water Column Sonar Data Map Viewer", "accessURL": "https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=SH1904&instruments=EK60-ek5", "mediaType": "text/html", "description": "Interactive map viewer to allow discovery and access to water column sonar data", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "AWS Cloud Storage Bucket", "accessURL": "https://registry.opendata.aws/ncei-wcsd-archive/", "mediaType": "text/html", "description": "AWS Cloud Storage to provide additional public access to water column sonar data through the NOAA Open Data Dissemination project (NODD)", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Water Column Sonar Data Archive Homepage", "accessURL": "https://www.ngdc.noaa.gov/mgg/wcd/", "mediaType": "text/html", "description": "Web page containing information on the water column sonar data archive.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Global Change Master Directory (GCMD) Keywords", "accessURL": "https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords", "mediaType": "text/html", "description": "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.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)", "accessURL": "https://iho.int/", "mediaType": "text/html", "description": "Publication of Sea Areas is maintained by IHO.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "NCEI Contact Information", "accessURL": "https://www.ncei.noaa.gov/contact", "mediaType": "text/html", "description": "Information for contacts at NCEI.", "describedByType": "application/octet-stream" } ] |
| identifier | https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/MGG/Sonar_Water_Column/iso/xml/SH1904_EK60-ek5.xml |
| issued | 2019-03-05T00:00:00.000+00:00 |
| keyword |
[ "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", "Gulf of Alaska", "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", "Vertical Location > Water Column", "In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System" ] |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2023-01-19T00:00:00.000+00:00 |
| publisher |
{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" } |
| rights | otherRestrictions, otherRestrictions |
| spatial | -151.54883,55.56733,-157.0565,58.74583 |
| temporal | 2019-03-05T00:00:00+00:00/2019-03-21T11:59:59+00:00 |
| title | EK60-ek5 Water Column Sonar Data Collected During SH1904 |
