EK60 Water Column Sonar Data Collected During EX2303

Description

From June 5-20, 2023 (Dutch Harbor, Alaska to Kodiak, Alaska), NOAA Ocean Exploration conducted mapping operations off the coast of the Aleutian Islands in U.S. waters, aiding in closing bathymetric gaps within this region. Expedition EX2303 collected 37,601 square kilometers of bathymetry and associated water column within the U.S. Exclusive Economic Zone and Territorial Sea deeper than 200 m. During mapping operations, NOAA Ocean Exploration simultaneously collected EM 304 multibeam sonar bathymetry observations and Simrad EK60/EK80 split-beam fisheries sonar observations of biologic material in the water column, as well as Knudsen 3260 sub-bottom profiler observations of sub-seafloor geologic structure and sediment. A focused survey region targeted potential geological hazards along the Aleutian Trench. During the expedition, one CTD cast collected water samples for environmental DNA (eDNA) analysis. The exploratory mapping operations conducted during this cruise will provide initial characterization of the region, as well as data to support further exploration.

Resources

Name Format Description Link
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Publication of Sea Areas is maintained by IHO. https://iho.int/
0 AWS Cloud Storage to provide additional public access to water column sonar data through the NOAA Open Data Dissemination project (NODD) https://registry.opendata.aws/ncei-wcsd-archive/
0 Web page containing information on the water column sonar data archive. https://www.ngdc.noaa.gov/mgg/wcd/
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://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
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=EX2303&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://www.earthdata.nasa.gov/learn/find-data/idn/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://www.earthdata.nasa.gov/learn/find-data/idn/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://www.earthdata.nasa.gov/learn/find-data/idn/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
  • u.s. department of commerce
  • profilers/sounders
  • earth science
  • acoustic sounders
  • doc/noaa/nesdis/ngdc
  • bathymetry/seafloor topography
  • aquatic ecosystems
  • doc/noaa/nesdis/ncei
  • fisheries
  • pelagic
  • wcms
  • unknown
  • seafloor topography
  • national centers for environmental information
  • ocean acoustics

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