Ocean Sediment Thickness Contours

Description

Ocean sediment thickness contours in 200 meter intervals for water depths ranging from 0 - 18,000 meters. These contours were derived from a global sediment thickness grid distributed by the National Geophysical Data Center (NGDC). The NGDC grid was compiled from various existing sediment thickness maps and drilling cores, and has a cell resolution of 5 arc seconds. Sediment thickness data is typically acquired through two methods. Seismic (or sub-bottom) profile technologies rely on powerful pulses of low-frequency sound which penetrate the substrate and return information about substrate thickness, character, and stratification. The data are collected along transect lines and require interpolation to create comprehensive maps. Sediment thickness is also determined by direct measurement through coring, which provides more detailed information but only at discrete sites. Coring data can also be interpolated to form area maps, and to help interpret the seismic data.

Resources

Name Format Description Link
0 MarineCadastre.gov Data Registry https://marinecadastre.gov/data/
0 NOAA Office for Coastal Management Home Page https://coast.noaa.gov
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/48906.pdf
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 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/48906

Tags

  • human dimensions
  • united states of america
  • office of coastal management
  • environmental governance/management
  • national ocean service
  • seafloor sediment
  • sediment thickness
  • marine sediments
  • united states
  • continent
  • noaa
  • ocean energy planning
  • north america
  • doc/noaa/nos/ocm
  • u.s. department of commerce
  • earth science
  • marinecadastre
  • national
  • contours
  • marine spatial planning

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