EK80 Water Column Sonar Data Collected During DY2303
The Midwater Assessment and Conservation Engineering (MACE) program of NOAA Fisheries, Alaska Fisheries Science Center (AFSC), conducted an acoustic-trawl (AT) stock assessment survey in the Shumagin Islands, Pavlof Bay, Morzhovoi Bay, and Sanak areas of the Gulf of Alaska (GOA) 10-22 February 2023, to estimate distribution and abundance of walleye pollock (Gadus chalcogrammus). The survey was conducted aboard NOAA Ship Oscar Dyson (built in 2003, 64 meters, 2500 tons, 3100 hp), a research stern trawler equipped with acoustic and oceanographic instrumentation. The primary water column acoustic instrument for the survey was a Kongsberg EK80 split-beam scientific echosounder system utilizing five frequencies (18, 38, 70, 120, and 200 kHz). The vessel departed Kodiak, Alaska on 10 February and conducted the survey 14-20 February. A calibration of the EK80 echosounder system was conducted prior to starting the survey on 12 February Uyak Bay, Kodiak Island, Alaska. Trawl operations were conducted using an LFS1421 mid-water trawl net.
Resources
6 resources available
-
Water Column Sonar Data Map Viewer
TEXT/HTML -
AWS Cloud Storage Bucket
TEXT/HTML -
Water Column Sonar Data Archive Homepage
TEXT/HTML -
Global Change Master Directory (GCMD) Keywords
TEXT/HTML -
International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
TEXT/HTML -
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 | The Midwater Assessment and Conservation Engineering (MACE) program of NOAA Fisheries, Alaska Fisheries Science Center (AFSC), conducted an acoustic-trawl (AT) stock assessment survey in the Shumagin Islands, Pavlof Bay, Morzhovoi Bay, and Sanak areas of the Gulf of Alaska (GOA) 10-22 February 2023, to estimate distribution and abundance of walleye pollock (Gadus chalcogrammus). The survey was conducted aboard NOAA Ship Oscar Dyson (built in 2003, 64 meters, 2500 tons, 3100 hp), a research stern trawler equipped with acoustic and oceanographic instrumentation. The primary water column acoustic instrument for the survey was a Kongsberg EK80 split-beam scientific echosounder system utilizing five frequencies (18, 38, 70, 120, and 200 kHz). The vessel departed Kodiak, Alaska on 10 February and conducted the survey 14-20 February. A calibration of the EK80 echosounder system was conducted prior to starting the survey on 12 February Uyak Bay, Kodiak Island, Alaska. Trawl operations were conducted using an LFS1421 mid-water trawl net. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Water Column Sonar Data Map Viewer",
"accessURL": "https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=DY2303&instruments=EK80",
"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/DY2303_EK80.xml |
| issued | 2023-02-10T00:00:00.000+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 | 2024-02-07T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| rights | otherRestrictions, otherRestrictions |
| spatial | -152.05327,54.78277,-163.24058,58.02254 |
| temporal | 2023-02-10T00:00:00+00:00/2023-02-22T11:59:59+00:00 |
| title | EK80 Water Column Sonar Data Collected During DY2303 |
