Greenland DEM - Greenland Mapping Project (GIMP) (OSU/GIMP/DEM)

Version 2.2

This Digital Elevation Model (DEM) is constructed from a combination
of ASTER and SPOT-5 DEM’s for the ice sheet periphery and margin
(i.e. below the equilbrium line elevation) south of
approximately 82.5°N, and AVHRR photoclinometry in the ice sheet
interior and far north (Scambos and Haran, 2002).

SPOT-5 DEM’s were produced and distributed as part of the Spot5
stereoscopic survey of Polar Ice: Reference Images & Topographies
(SPIRIT) project (Korona et al., 2009). Ocean surfaces were masked
using the GIMP Land Classification mask and replased with the
CNES CLS11 mean sea surface height (Schaeffer et al., 2012).


  • All land elevation data is horizontally and vertically registered
    to average ICESat elevations for the 2003-2009 time period, and
    therefore the DEM has a nominal date of 2007, although care must
    be taken when using the DEM in areas of rapid change, such as
    major outlet glaciers south of 70°N.
  • The DEM has a resolution of 30 m, although the “true” resolution of the
    DEM will vary from 40 m in areas of SPOT-5 coverage
    (see Korona et al. 2009) to 500 m in areas of photoclinometry.
  • The ice-sheet-wide root-mean-squared validation error
    relative to ICESat is +/-10 m, rangining from close to +/- 1 m
    over most ice surfaces to +/- 30 m in areas of high relief.
NameDescriptionGee UnitGSD (m)


OSU Glacier Dynamics Group (producer, licensor)
Google Earth Engine (host)
STAC Version 0.6.0
Keywords GIMP, NASA, OSU, arctic, greenland, polar
License proprietary
Temporal Extent 6/29/1999, 5:00:00 PM - 9/3/2002, 5:00:00 PM
Citation Howat, I.M., A. Negrete, B.E. Smith, 2014, The Greenland Ice Mapping Project (GIMP) land classification and surface elevation datasets, The Cryosphere, 8, 1509-1518, [doi:10.5194/tc-8-1509-2014]( [article pdf](
Type image