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Description

From August 1 - 17, 2023 (Unalaska, Alaska to Kodiak, Alaska), NOAA Ocean Exploration conducted the Seascape Alaska 4: Gulf of Alaska Deepwater Mapping expedition (EX2305), a mapping expedition to the Gulf of Alaska. Operations during this 17-day expedition included mapping 24,032 sq. km of seafloor (23,591 sq. km in the U.S. Exclusive Economic Zone) and calibrating the 18, 38, 70, 120, and 200 kHz frequency EK60/EK80 split-beam sonars. All data associated with this expedition have been archived and are publicly available through the NOAA archives.

Resources

Name Format Description Link
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
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

  • fish habitats
  • single beam sonar
  • ocean discovery
  • office of ocean exploration and research
  • habitat areas of particular concern
  • ocean research
  • underwater video
  • alaska
  • explorer
  • scs
  • aleutian islands
  • north pacific ocean
  • multi-beam sonar
  • transformational research
  • ocean education
  • nesdis
  • split beam sonar
  • oceanic & atmospheric research
  • r337
  • telepresence
  • noaa ship okeanos explorer
  • underwater
  • bathymetry
  • stewardship
  • oceans
  • high-definition underwater video
  • sonar anomalies
  • marine education
  • kodiak
  • water column backscatter
  • doc/noaa/oar/oer
  • seascape alaska
  • singlebeam sonar
  • noaa
  • unalaska
  • scientific research
  • ocean literacy
  • multibeam
  • deep-sea coral and sponge communities
  • noaa fleet
  • undersea
  • aquatic sciences
  • gulf of alaska
  • u.s. department of commerce
  • ocean exploration and research
  • earth science
  • em304
  • systematic exploration
  • site characterization
  • bathymetry/seafloor topography
  • ocean
  • mapping survey
  • sub-bottom profile
  • doc/noaa/nesdis/ncei
  • chemosynthetic communities
  • deep-water habitats
  • seamounts
  • ocean exploration
  • sea
  • multibeam sonar
  • deep-water mapping
  • benthic habitats
  • shakedown
  • multibeam backscatter
  • essential fish habitats
  • marine environment monitoring
  • single-beam sonar
  • seabed 2030
  • efh
  • bathymetric gaps
  • scientific computing system
  • technology
  • okeanos explorer
  • exploration
  • mapping
  • science
  • ctd
  • pacific ocean
  • exploration vessel
  • seafloor topography
  • okeanos
  • hapc
  • national centers for environmental information
  • deep-sea exploration
  • expedition
  • scientific mission
  • oer

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