NOAA/NESDIS/NGDC
NOAA/NESDIS/NGDC
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Background and reference layers:

  • GEBCO_08: TheGEBCO_08 Grid is a 30 arc-second global bathymetry/topography grid. Released: January 2009, updated November 2009.
    Copyright Text: IOC, IHO and BODC, 2009. Centenary Edition of the GEBCO Digital Atlas, published on CD-ROM on behalf of the Intergovernmental Oceanographic Commission and the International Hydrographic Organization as part of the General Bathymetric Chart of the Oceans, British Oceanographic Data Centre, Liverpool, U.K.
    Shaded-relief visualization by J. Varner, CIRES, University of Colorado at Boulder and NOAA/NGDC.
  • ETOPO1:ETOPO1 Global Relief Model - Amante, C. and B. W. Eakins, ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum NESDIS NGDC-24, 19 pp, March 2009. Shaded-relief visualization by J. Varner and E. Lim, CIRES, University of Colorado at Boulder and NOAA/NGDC.
  • Simple background: GSHHS version 2.0 (Global Self-consistent, Hierarchical, High-resolution Shoreline Database)
  • Imagery: ESRI World Imagery
  • Boundaries/Labels:

Map projection:WGS84 Web Mercator (Auxilary Sphere); EPSG:3857.

Disclaimer: All international boundaries, maritime boundaries, and placenames are shown for general orientation and reference only; they do not necessarily represent official U.S. policy.

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Questions or Comments: dem.info@noaa.gov