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EK60 Water Column Sonar Data Collected During DY0904
Acoustic-Trawl Surveys of Walleye Pollock in the Central Gulf of Alaska (DY0904, EK60). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted acoustic-trawl (AT) stock assessment surveys in the central Gulf of Alaska (GOA) during the late winter/early spring of 2009 to estimate the distribution and abundance of walleye pollock (Theragra chalcogramma). The vessel departed Kodiak, Alaska on 19 March and conducted a survey along the central Gulf of Alaska shelf east of Chirikof Island 20-22 March. The vessel then surveyed Shelikof Strait 23-28 March and performed an acoustic equipment calibration on 29 March. The Marmot Bay survey was conducted 29-30 March followed by fisheries research equipment testing on 31 March. The vessel ended the cruise in Kodiak, Alaska on 1 April. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation.
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 in the Central Gulf of Alaska (DY0904, EK60). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted acoustic-trawl (AT) stock assessment surveys in the central Gulf of Alaska (GOA) during the late winter/early spring of 2009 to estimate the distribution and abundance of walleye pollock (Theragra chalcogramma). The vessel departed Kodiak, Alaska on 19 March and conducted a survey along the central Gulf of Alaska shelf east of Chirikof Island 20-22 March. The vessel then surveyed Shelikof Strait 23-28 March and performed an acoustic equipment calibration on 29 March. The Marmot Bay survey was conducted 29-30 March followed by fisheries research equipment testing on 31 March. The vessel ended the cruise in Kodiak, Alaska on 1 April. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Water Column Sonar Data Map Viewer",
"mediaType": "placeholder/value",
"description": "Interactive map viewer to allow discovery and access to water column sonar data",
"downloadURL": "http://maps.ngdc.noaa.gov/viewers/water_column_sonar/",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Water Column Sonar Data Archive Homepage",
"mediaType": "placeholder/value",
"description": "Web page containing information on the water column sonar data archive.",
"downloadURL": "https://www.ngdc.noaa.gov/mgg/wcd/",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Global Change Master Directory (GCMD) Keywords",
"mediaType": "placeholder/value",
"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.",
"downloadURL": "https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords",
"describedByType": "application/octet-steam"
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{
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"title": "International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)",
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"description": "Publication of Sea Areas is maintained by IHO.",
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|
| identifier | gov.noaa.ngdc.mgg.wcd:DY0904_EK60 |
| issued | 2009-03-19T00:00:00.000+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",
"DOC/NOAA/NMFS > National Marine Fisheries Service, 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 | 2016-10-03T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| rights | otherRestrictions, otherRestrictions |
| spatial | -151.67431,55.53438,-156.83159,58.39257 |
| temporal | 2009-03-19T20:37:19+00:00/2009-04-01T14:31:39+00:00 |
| title | EK60 Water Column Sonar Data Collected During DY0904 |
