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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Global Bathymetry and Topography at 15 Arc Sec: SRTM15+V2.0

    Metadata Updated: December 19, 2020

    The global bathymetry and topography grid at 15 Arc Sec is the latest iteration of the SRTM+ digital elevation model (DEM) where the "plus" indicates the addition of ocean bathymetry from shipboard soundings and satellite-derived predicted depths. This DEM is a global elevation grid with a spatial sampling interval of 15 arc seconds (approximately 500 x 500 m pixel size at the equator). New data consists of >33.6 million multibeam and singlebeam measurements collated by several institutions, namely, the National Geospatial-Intelligence Agency, Japan Agency for Marine-Earth Science and Technology, Geoscience Australia, Center for Coastal and Ocean Mapping, and Scripps Institution of Oceanography. New altimetry data consists of 48, 14, and 12 months of retracked range measurements from Cryosat-2, SARAL/AltiKa, and Jason-2, respectively. Onshore, topography data are sourced from previously published digital elevation models, predominately SRTM-CGIAR V4.1 between 60N and 60S. ArcticDEM is used above 60N, while Reference Elevation Model of Antarctica is used below 62S. For more information on this dataset, see its associated publication: Tozer, B, Sandwell, D. T., Smith, W. H. F., Olson, C., Beale, J. R., & Wessel, P. (2019). Global bathymetry and topography at 15 arc sec: SRTM15+. Earth and Space Science, 6, 1847. https://doi.org/10.1029/2019EA000658 or visit the project website here for more details.

    Access & Use Information

    Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Date December 10, 2020
    Metadata Created Date December 19, 2020
    Metadata Updated Date December 19, 2020
    Reference Date(s) December 10, 2020 (publication)
    Frequency Of Update

    Metadata Source

    Harvested from OpenTopography CSW

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date December 10, 2020
    Metadata Created Date December 19, 2020
    Metadata Updated Date December 19, 2020
    Reference Date(s) December 10, 2020 (publication)
    Responsible Party National Oceanic and Atmospheric Administration (NOAA) (Originator); Scripps Institute Of Oceanography (Originator); null (Originator); University of Hawaii at Manoa (Originator); National Geospatial-Intelligence Agency (Originator)
    Contact Email
    Guid OT.122019.4326.1
    Access Constraints
    Bbox East Long 180.0
    Bbox North Lat 90.0
    Bbox South Lat -90.0
    Bbox West Long -180.0
    Coupled Resource
    Frequency Of Update
    Harvest Object Id 821e7080-14ed-4d3c-ba7c-bfcd75dd8f45
    Harvest Source Id 1017486a-47c7-4139-9ed4-a4d93503679a
    Harvest Source Title OpenTopography CSW
    Licence
    Metadata Language en
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
    Progress
    Spatial Data Service Type
    Spatial Reference System WGS84 [EPSG: 4326]
    Spatial Harvester True

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