AFSC/RACE/GAP/Zimmermann: Aleutians Sediments

Description

We assembled 2.1 million National Ocean Service (NOS) bathymetric soundings extending 1,900 km along the Aleutian Islands from Unimak Island in the east to the Russian border in the west, and ranging approximately 500 km north of the central Aleutians to Petrel and Bowers Banks, and also the surrounding deep waters of the southeastern Bering Sea. These bathymetry data are available from the National Geophysical Data Center (NGDC: http://www.ngdc.noaa.gov), which archives and distributes data that were originally collected by the NOS and others. While various bathymetry data have been downloaded previously from NGDC, compiled, and used for a variety of projects, our effort differed in that we compared and corrected the digital bathymetry by studying the original analog source documents - digital versions of the original survey maps, called smooth sheets. Our editing included deleting erroneous and superseded values, digitizing missing values, and properly aligning all data sets to a common, modern datum. We also digitized 25,000 verbal surficial sediment descriptions from the smooth sheets, providing the largest single source of sediment information for the Aleutians.

Resources

Name Format Description Link
57 Online Resource http://www.afsc.noaa.gov/RACE/groundfish/bathymetry/AI_sediments.zip
0 https://www.ncei.noaa.gov
57 AI_sediments.zip http://www.afsc.noaa.gov/RACE/groundfish/bathymetry/AI_sediments.zip
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/22165
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
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/22165.pdf
0 https://www.ncei.noaa.gov
57 AI_sediments.zip https://www.afsc.noaa.gov/RACE/groundfish/bathymetry/AI_sediments.zip
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/22165
57 Online Resource https://www.afsc.noaa.gov/RACE/groundfish/bathymetry/AI_sediments.zip
0 Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/22165.pdf

Tags

  • alaska fisheries science center
  • alaska
  • aleutian islands
  • north pacific ocean
  • noaa
  • point
  • u.s. department of commerce
  • national marine fisheries service
  • doc/noaa/nmfs/afsc
  • sediment
  • groundfish assessment program

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