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Datasets / DEM

DEM

GEBCO Global Grid

General Bathymetric Chart of the Oceans. Global terrain and bathymetry at 15 arc-seconds.

A continuous elevation model for land and ocean. Land heights come mostly from SRTM-based products; the ocean from ship soundings and satellite-derived gravity. It is the standard source for lake-to-ocean and coastal work that needs bathymetry.

Source
General Bathymetric Chart of the Oceans
Resolution
15 arc-seconds (about 450 m)
Data type
Raster
Time span
Annual releases
Temporal
Static (a new grid each year)
Access type
Direct download (external) · Subset by area in the GEBCO download app
Formats
NetCDF, GeoTIFF, Esri ASCII
Coverage
Global, land and ocean (-180, -90, 180, 90)
Licence
Public domain (GEBCO terms of use)
Provider page
www.gebco.net/

Access

linkArea subset in the GEBCO download app

https://download.gebco.net/

curl "https://hydrological.org/api/v1/datasets/gebco-grid/links?bbox=-75,-20,-50,5" \
  -H "Accept: application/json"

Also available as JSON: links · manifest · dataset record