ME70 Water Column Sonar Data Collected During DY1203
Shelikof Strait Acoustic-Trawl Survey of Walleye Pollock (DY1203, ME70). The Midwater
Assessment and Conservation Engineering (MACE) program of the Alaska Fisheries Science
Center (AFSC) conducted an acoustic-trawl (AT) stock assessment survey in the Gulf
of Alaska (GOA) during the late winter of 2012 to estimate the distribution and abundance
of walleye pollock (Gadus chalcogrammus). The survey areas for cruise DY1203 included
the GOA continental shelf break east of Chirikof Island to Barnabas Trough (March
17-19, 2012), and throughout the Shelikof Strait sea valley (March 20-26, 2012).The
survey was conducted onboard NOAA Ship Oscar Dyson, a 64 meter scientific research
vessel equipped with acoustic and oceanographic instrumentation in addition to trawling
and biological sampling capabilities. The primary instrumentation for the survey was
a Simrad EK60 split-beam scientific echosounder system utilizing five frequencies
(18, 38, 70, 120, and 200 kHz) and a Simrad ME70 multibeam echosounder, with the ME70
trigger slaved to the EK60 system.
- Cite as: Alaska Fisheries Science Center. 2012. 'ME70 Water Column Sonar Data Collected During DY1203'. NOAA National Centers for Environmental Information. doi:10.7289/V5K935FH [access date]
- DY1203_ME70
- doi:10.7289/V5K935FH
- NCEI Metadata ID:gov.noaa.ngdc.mgg.wcd:DY1203_ME70
gov.noaa.ngdc.mgg.wcd:DY1203_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 | 2012-03-15T20:12:02 to 2012-03-26T16:33:16 |
Spatial Reference System | urn:ogc:def:crs:EPSG::4326Vertical Datum: Unknown |
Spatial Bounding Box Coordinates |
West:-165.552062
East:-152.085202765
South:53.9673392083
North:58.5043543333
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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 the Shelikof Strait area of the Gulf of Alaska (GOA) |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Instrument keywords | Global Change Master Directory (GCMD) Instrument Keywords
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Place keywords | 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