Global Bathymetry and Topography at 15 Arc Sec: SRTM15+ V2.1

DOI: https://doi.org/10.5069/G92R3PT9
OT Collection ID: OT.122019.4326.1
OT Collection Name: Global Bathymetry and Topography at 15 Arc Sec: SRTM15+ V2.1
Short Name: SRTM15Plus
Collection Platform: Bathymetric Data
Metadata Download:
  • ISO 19115 (Data)
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  • Download and Access Products:

    SRTM15+   Bulk Download     opentopoID: OTSRTM.122019.4326.1
    Collection Overview: SRTM+  Logos

    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.



    Dataset Acknowledgement: 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

    Dataset Citation: 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+. Distributed by OpenTopography. https://doi.org/10.5069/G92R3PT9 Accessed: 2021-09-23

    Use License: Not Provided

    Dataset Keywords: SRTM, bathymetry, ocean, altimetry, satellite, ship soundings, gravity anomaly, Cryosat, Jason-2, SARAL,Arctic DEM, REMA

    Survey Date: 02/11/2000 - 12/01/2019

    Publication Date: 12/10/2020
    Data Provider and Roles:
    Principal Investigator
    • Brook Tozer - Scripps Institute Of Oceanography
    Author
    • David Sandwell - Scripps Institute Of Oceanography
    • Walter H. F. Smith - National Oceanic and Atmospheric Administration (NOAA)
    • C. Olson - Scripps Institute Of Oceanography
    • J. R. Beale - National Geospatial-Intelligence Agency
    • P. Wessel - University of Hawaii at Manoa
    Area: 509,753,760 km2
    Raster Resolution: 500 meter

    Coordinates System:
        Horizontal: WGS84 [EPSG: 4326]
        Vertical: WGS84 (EGM96 GEOID) [EPSG: 5171]

    Survey Report: SRTM15Plus_metadata.tar.gz
    Dataset Extent in KMZ format: Not available
    Dataset Spatial Bounds: Not available