2000 Greenland Mosaic - Greenland Ice Mapping Project (GIMP)

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arctic gimp greenland imagery nasa polar radarsat-1


This dataset provides a complete 15 m resolution image mosaic of the Greenland ice sheet derived from Landsat 7 ETM+ and RADARSAT-1 SAR imagery from the years 1999 to 2002. The methods include a combination of image cloud masking, pan sharpening, image sampling and resizing, and image coregistration. Please see Howat, 2014 for more information regarding processing methods.


  • Users of GIMP DEM or GIMP 2000 Image Mosaic images may find it helpful to mask out areas outside of the Greenland coastline using the corresponding 15 m ocean mask image Greenland Ice Mapping Project (GIMP) Land Ice and Ocean Classification Mask,
  • The SAR data are distributed at 20 m resolution. Data were up-sampled through bilinear interpolation to 15 m to match the resolution of Landsat band-8.

General documentation



Name Pixel Size Wavelength Description
B1 15 meters 0.45 - 0.52 μm

Landsat 7 ETM+ blue

B2 15 meters 0.52 - 0.60 μm

Landsat 7 ETM+ green

B3 15 meters 0.63 - 0.69 μm

Landsat 7 ETM+ red

B4 15 meters 0.77 - 0.90 μm

Landsat 7 ETM+ near infrared

B5 30 meters 1.55 - 1.75 μm

Landsat 7 ETM+ shortwave infrared 1

B6_low_gain 30 meters 10.40 - 12.50 μm

Landsat 7 ETM+ low-gain thermal Infrared 1. This band has expanded dynamic range and lower radiometric resolution (sensitivity), with less saturation at high Digital Number (DN) values. Resampled from 60m to 30m.

B6_high_gain 30 meters 10.40 - 12.50 μm

Landsat 7 ETM+ high-gain thermal Infrared 1. This band has higher radiometric resolution (sensitivity), although it has a more restricted dynamic range. Resampled from 60m to 30m.

B7 30 meters 2.08 - 2.35 μm

Landsat 7 ETM+ shortwave infrared 2

B8 15 meters 0.52 - 0.90 μm

Landsat 7 ETM+ panchromatic

B8_radarsat 15 meters

RADARSAT-1 synthetic aperture radar amplitude imagery

Terms of Use

Terms of Use

As a condition of using these data, you must cite the use of this data set using the given 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


Explore in Earth Engine

var dataset = ee.Image('OSU/GIMP/2000_IMAGERY_MOSAIC');
var greenlandImage = dataset.select(['B3', 'B2', 'B1']);
var visParams = {
  min: 0.0,
  max: 255.0,
Map.setCenter(-29.1605, 70.4, 9);
Map.addLayer(greenlandImage, visParams, 'Greenland Pansharpened Image');