ME70 Water Column Sonar Data Collected During DY1302
Shumagin Islands Acoustic-Trawl Survey of Walleye Pollock (DY1302, ME70). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA's National Marine Fisheries Service, Alaska Fisheries Science Center (AFSC), conducted an acoustic-trawl (AT) stock assessment survey in the Gulf of Alaska (GOA) during late winter of 2013 to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus). The survey areas included the Shumagin Islands area (consisting of Shumagin Trough, Stepovak Bay, Renshaw Point, Unga Strait, and West Nagai Strait), Sanak Trough, and Morzhovoi Bay (February 26 to March 3, 2013). The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation in addition to 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.
Dataset Citation
- Cite as: Alaska Fisheries Science Center. 2013. 'ME70 Water Column Sonar Data Collected During DY1302'. NOAA National Centers for Environmental Information. doi:10.7289/V5348H9P [access date]
Dataset Identifiers
- DY1302_ME70
- doi:10.7289/V5348H9P
- NCEI Metadata ID:gov.noaa.ngdc.mgg.wcd:DY1302_ME70
ISO 19115-2 Metadata
gov.noaa.ngdc.mgg.wcd:DY1302_ME70
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Ordering Instructions | Contact the NCEI Water Column Sonar Data Manager to order data. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Water Column Sonar Data Manager NOAA National Centers for Environmental Information (303) 497-4742 wcd.info@noaa.gov |
Time Period | 2013-02-07T17:33:28 to 2013-03-05T03:43:24 |
Spatial Reference System | urn:ogc:def:crs:EPSG::4326Vertical Datum: Unknown |
Spatial Bounding Box Coordinates |
West: -163.308755475
East: -152.026113413
South: 54.44069994
North: 58.0163096233
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Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Not planned |
Purpose | Acoustic-trawl survey of walleye pollock in Shumagin Islands and Sanak Trough area of the Gulf of Alaska |
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International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
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Last Modified: 2020-06-03
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov