ME70 Water Column Sonar Data Collected During DY1506
Gulf of Alaska Acoustic-Trawl Survey of Walleye Pollock (DY1506, ME70). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted an acoustic-trawl (AT) stock assessment survey in the Gulf of Alaska (GOA) during late spring and summer of 2015 to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus). The survey area included the GOA shelf from the Islands of Four Mountains to Chiniak Trough including many associated bays and troughs. The survey was conducted from June 11 to August 16, 2015 in three legs, starting and ending in Kodiak, Alaska, with intermediate port calls in Kodiak, Alaska. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation, and biological sampling capabilities. The primary instrumentation for the survey was a Simrad EK60 split-beam echosounder system utilizing five frequencies (18, 38, 70, 120, and 200 kHz) and a Simrad ME70 multibeam echosounder, with the ME70 trigger synchronized to the EK60 system.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "NOAA National Centers for Environmental Information",
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"hasEmail": "mailto:ncei.info@noaa.gov"
}
|
| describedByType | application/octet-steam |
| description | Gulf of Alaska Acoustic-Trawl Survey of Walleye Pollock (DY1506, ME70). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted an acoustic-trawl (AT) stock assessment survey in the Gulf of Alaska (GOA) during late spring and summer of 2015 to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus). The survey area included the GOA shelf from the Islands of Four Mountains to Chiniak Trough including many associated bays and troughs. The survey was conducted from June 11 to August 16, 2015 in three legs, starting and ending in Kodiak, Alaska, with intermediate port calls in Kodiak, Alaska. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation, and biological sampling capabilities. The primary instrumentation for the survey was a Simrad EK60 split-beam echosounder system utilizing five frequencies (18, 38, 70, 120, and 200 kHz) and a Simrad ME70 multibeam echosounder, with the ME70 trigger synchronized to the EK60 system. |
| distribution |
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{
"@type": "dcat:Distribution",
"title": "Water Column Sonar Data Map Viewer",
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"description": "Interactive map viewer to allow discovery and access to water column sonar data",
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"title": "Water Column Sonar Data Archive Homepage",
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|
| identifier | gov.noaa.ngdc.mgg.wcd:DY1506_ME70 |
| issued | 2015-06-11T00:00:00.000+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 | 2016-01-01T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
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|
| rights | otherRestrictions, otherRestrictions |
| spatial | -140.55244565053,52.3830553056981,-170.036871558254,59.9587932866569 |
| temporal | 2015-06-11T21:38:37+00:00/2015-08-16T00:00:00+00:00 |
| title | ME70 Water Column Sonar Data Collected During DY1506 |
