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Description

From September 23 October 14, 2023 (Seward, Alaska to San Francisco, California), NOAA Ocean Exploration completed Seascape Alaska 6: Gulf of Alaska Transit Mapping (EX2307). Operations during this 22-day expedition included collection of 47,899 square kilometers of seafloor bathymetry (40,108 in the U.S. Exclusive Economic Zone). 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. Focused survey regions included closing bathymetric gaps in the Gulf of Alaska, California, and off the coast of British Columbia, Canada. An additional focused survey in the Cascadia margin off the coast of Washington improved data quality in a region of interest for geological hazards. The exploratory mapping operations conducted during this expedition provide initial characterization of the region, as well as data to support further exploration. All data associated with this expedition have been archived and are publicly available through the NOAA archives.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
  • seward
  • ocean research
  • underwater video
  • alaska
  • explorer
  • scs
  • north pacific ocean
  • multi-beam sonar
  • transformational research
  • ocean education
  • nesdis
  • split beam sonar
  • oceanic & atmospheric research
  • r337
  • west coast
  • telepresence
  • noaa ship okeanos explorer
  • canada
  • underwater
  • ca
  • bathymetry
  • stewardship
  • oceans
  • high-definition underwater video
  • sonar anomalies
  • marine education
  • water column backscatter
  • doc/noaa/oar/oer
  • seascape alaska
  • singlebeam sonar
  • noaa
  • and california
  • west coast of canada
  • 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
  • san francisco
  • ocean
  • mapping survey
  • sub-bottom profile
  • doc/noaa/nesdis/ncei
  • california
  • chemosynthetic communities
  • deep-water habitats
  • ocean exploration
  • sea
  • multibeam sonar
  • deep-water mapping
  • benthic habitats
  • shakedown
  • multibeam backscatter
  • essential fish habitats
  • express
  • washington
  • marine environment monitoring
  • single-beam sonar
  • seabed 2030
  • efh
  • bathymetric gaps
  • scientific computing system
  • technology
  • okeanos explorer
  • exploration
  • science
  • ctd
  • pacific ocean
  • exploration vessel
  • seafloor topography
  • okeanos
  • hapc
  • oregon
  • national centers for environmental information
  • deep-sea exploration
  • expedition
  • scientific mission
  • oer
  • ak

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