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Shumagin Islands Acoustic-Trawl Survey of Walleye Pollock (DY1201, 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 included the Shumagin Islands (February 15-16, 2012) and Sanak Trough (February 17-20, 2012). The survey was conducted onboard NOAA Ship Oscar Dyson, a 64 meter stern trawler 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 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): Water Column Sonar Data Collection (DY1201, ME70). National Geophysical Data Center, NOAA. doi:10.7289/V5FJ2DQS [access date]
Search Data
Distribution Formats
  • Simrad ME70 raw files (Version: 1)
    • File Specification: Simrad ME70 raw files. See the Simrad ME70 interface specification manual for further information.
Distributor Chuck Anderson
Water Column Sonar Data Manager
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-4742
wcd.info@noaa.gov
Dataset Principal Investigator Chris Wilson
Supervisory Research Fish Biologist
DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center
(206) 526-6435
chris.wilson@noaa.gov
Time Period: 2012-02-12T23:59:15 to 2012-02-22T19:19:02
Spatial Reference System: urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates:
N: 58.0173372
S: 54.331708575
E: -151.8867995
W: -163.234061537
Documentation links not available.
Date(s)
  • creation: 2012-02-12
Dataset Progress Status Complete
Data Update Frequency: Not planned
Purpose: Acoustic-trawl survey of walleye pollock in Shumagins and Sanak Trough areas of the Gulf of Alaska
Use Limitations
  • While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
  • These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
  • Not subject to copyright protection within the United States.
Dataset Citation Cite as: Alaska Fisheries Science Center (2012): Water Column Sonar Data Collection (DY1201, ME70). National Geophysical Data Center, NOAA. doi:10.7289/V5FJ2DQS [access date]
Resource Provider(s)
  • DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center
Point(s) of Contact
  • DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center
Publisher(s)
  • 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
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • 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
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • 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
Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
  • In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System
Place keywords International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
  • Gulf of Alaska
Global Change Master Directory (GCMD) Location Keywords
  • GEOGRAPHIC REGION > GLOBAL
  • Vertical Location > VERTICAL LOCATION > SEA FLOOR
Use Constraints
  • Cite as: Alaska Fisheries Science Center (2012): Water Column Sonar Data Collection (DY1201, ME70). National Geophysical Data Center, NOAA. doi:10.7289/V5FJ2DQS [access date]
Access Constraints
  • Resource will be available one year after initial collection.
Fees
  • Free
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Lineage information for: collectionHardware
Lineage Statement Calibrated w/ calibration data
Lineage information for: series
Processor
Acquisition Information (collection)
Instrument
  • Simrad ME70
  • Simrad ME70
  • Simrad EK60
  • Simrad ES60
  • Knudsen CHIRP 3260
  • Sippican XBT/XSV
  • SBE 49 FastCAT
  • SBE 911plus CTD
  • SBE 32
  • POS/MV 320
Platform
  • Oscar Dyson (DY)
Operation
  • DY1201_ME70
Last Modified: 2017-05-30
For questions about the information on this page, please email: wcd.info@noaa.gov