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    • Ocean Sediment Thickness Contours

    Metadata Updated: March 15, 2024

    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.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date February 29, 2024
    Metadata Created Date November 12, 2020
    Metadata Updated Date March 15, 2024
    Reference Date(s) 2013-10 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOS OCM

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 29, 2024
    Metadata Created Date November 12, 2020
    Metadata Updated Date March 15, 2024
    Reference Date(s) 2013-10 (publication)
    Responsible Party NOAA Office for Coastal Management (Point of Contact)
    Contact Email
    Guid gov.noaa.nmfs.inport:48906
    Access Constraints Cite As: Office for Coastal Management, [Date of Access]: Ocean Sediment Thickness Contours [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48906., Use Constraints: For coastal and ocean planning, Distribution Liability: https://www.marinecadastre.gov/about/disclaimer.html
    Bbox East Long 179.999989
    Bbox North Lat 74.208333
    Bbox South Lat 0.041667
    Bbox West Long -179.999989
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id 08f3d4c8-52a2-449f-a5d3-31140382e30a
    Harvest Source Id c0121fd9-df15-4168-ac04-42f6e36a794d
    Harvest Source Title NOS OCM
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-179.999989, 0.041667], [179.999989, 0.041667], [179.999989, 74.208333], [-179.999989, 74.208333], [-179.999989, 0.041667]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True

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