EK60 Water Column Sonar Data Collected During DY1602

Description

Gulf of Alaska Acoustic-Trawl Survey of Walleye Pollock (DY1602, EK60). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted acoustic-trawl (AT) stock assessment surveys in the Gulf of Alaska (GOA) during the winter of 2016 to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus). The Shumagin Islands survey was conducted 12-15 February and included Shumagin Trough, Stepovak Bay, Renshaw, Unga Strait, Korovin Strait, and West Nagai Strait. The Sanak Trough survey was conducted 15-16 February followed by the Morzhovoi Bay survey on 16 February. The vessel transited to Pavlov Bay 16-17 February and completed the Pavlov survey on February 17. The vessel transited to its home port 18-20 February. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation.

Resources

Name Format Description Link
0 Web page containing information on the water column sonar data archive. https://www.ngdc.noaa.gov/mgg/wcd/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
33 Publication of Sea Areas is maintained by IHO. http://www.iho-ohi.net/iho_pubs/standard/S-23/S23_1953.pdf
0 AWS Cloud Storage provides additional public access to water column sonar data through the NOAA Big Data Project https://registry.opendata.aws/ncei-wcsd-archive/
0 Interactive map viewer to allow discovery and access to water column sonar data https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=DY1602&instruments=EK60
0 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. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 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. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 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. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 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. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords

Tags

  • water column
  • vertical location
  • acoustic scattering
  • water column mapping system
  • benthic
  • ecosystems
  • nesdis
  • biosphere
  • bathymetry
  • in situ/laboratory instruments
  • oceans
  • national geophysical data center
  • noaa
  • marine ecosystems
  • aquatic sciences
  • gulf of alaska
  • u.s. department of commerce
  • profilers/sounders
  • earth science
  • acoustic sounders
  • national marine fisheries service
  • doc/noaa/nesdis/ngdc
  • bathymetry/seafloor topography
  • aquatic ecosystems
  • doc/noaa/nesdis/ncei
  • fisheries
  • doc/noaa/nmfs
  • pelagic
  • wcms
  • seafloor topography
  • national centers for environmental information
  • ocean acoustics

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