MEaSUREs Greenland Ice Sheet Mosaics from SAR Data

Calibrated and uncalibrated radar backscatter was used to create ice-sheet-wide image mosaics. The 20 m resolution mosaic consists of 25 tiles.

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MEaSUREs Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics

From data collected over six winters between 2000 and 2013, ice front positions are identified for glaciers with terminus widths of 1.5 km or greater.

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MEaSUREs Greenland Ice Mapping Project (GIMP) Digital Elevation Model from GeoEye and WorldView Imagery

Sub-meter resolution, panchromatic stereoscopic imagery collected by Digital Globe satellites allows for an enhanced 30 m resolution DEM. Smoothed and unsmoothed images are available.

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MEaSUREs Multi-year Greenland Ice Sheet Velocity Mosaic

For a 20-year period, InSAR, SAR, and Landsat 8 optical imagery data were used to produce ice-sheet-wide velocity mosaics. (Image Credit, Joughin 2010)

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Greenlandmosaic
Outlet glacier termini
Velocity Mosaic

GIMP Data

The objective of the Greenland Ice sheet Mapping Project (GIMP) is to establish benchmark data sets for observing ice sheet change and stability. The acquired data cover multiple years, beginning in 2000, and originate from a variety of satellites and sensors, including the U.S. Geological Survey's (USGS) and NASA's Landsat 7 and Landsat 8, the European Space Agency's (ESA) Copernicus Sentinel-1, the German Aerospace Center's (DLR) TerraSAR-X, and the Canadian Space Agency's (CSA) RADARSAT-1 and RADARSAT-2. These data include ice sheet-wide ice velocity, surface elevation, and surface morphology maps.

The following data sets were generated by the GIMP project, which is funded through NASA's Making Earth System data records for Use in Research Environments (MEaSUREs) program. The GIMP project principle investigators are Ian Joughin of the Applied Physics Laboratory and Ian Howat of the Byrd Polar Research Center.

Data Set Titles Data Set ID Spatial Coverage Temporal Coverage Parameter(s) Investigator
nsidc0481 MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, Version 1 NSIDC-0481 N: 82, S: 60, E: -20, W: -70 01 January 2009 to present Ice Velocity Ian Joughin, Ian Howat, Ted Scambos, Ben Smith
nsidc0478v2 MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data, Version 2 NSIDC-0478 N: 83, S: 60, E: -14, W: -75 Selected winters from 2000 to 2017 Ice Velocity Ian Joughin, Ben Smith, Ian Howat, Ted Scambos
nsidc0646v2 MEaSURES Greenland Ice Velocity: Selected Glacier Site Velocity Maps from Optical Images, Version 2 NSIDC-0646 N: 82, S: 60, E: -20, W: -70 01 March 1985 to 30 October 2016 Ice Velocity Ian Howat
nsidc0725 MEaSUREs Greenland Annual Ice Sheet Velocity Mosaics from SAR and Landsat, Version 1 NSIDC-0725 N: 83, S: 60, E: -14, W: -75 01 December 2014 to 30 November 2017 Ice Velocity Ian Joughin
MEaSUREs Greenland Quarterly Ice Sheet Velocity Mosaics from SAR and Landsat, Version 1 NSIDC-0727 N: 83, S: 60, E: -14, W: -75 01 December 2014 to 30 November 2017 Ice Velocity Ian Joughin
MEaSUREs Greenland Monthly Ice Sheet Velocity Mosaics from SAR and Landsat, Version 1 NSIDC-0731 N: 83, S: 60, E: -14, W: -75 01 December 2014 to 30 November 2017 Ice Velocity Ian Joughin
nsidc0670 MEaSUREs Multi-year Greenland Ice Sheet Velocity Mosaic, Version 1 NSIDC-0670 N: 83, S: 60, E: -14, W: -75 01 December 1995 to 31 October 2015 Ice Velocity Ian Joughin, Ben Smith, Ian Howat, Ted Scambos
MEaSUREs Greenland Monthly Image Mosaics from MODIS, Version 1 NSIDC-0724 N: 84, S: 59, E: -20, W: -105 30 September 2016 Ice Edges, Surface Morphology Terry Haran, Jennifer Bohlander, Ted Scambos, Ian Joughin
greenland gif MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 2 NSIDC-0723

N: 84, S: 59, E: -15, W: -73

01 January 2015 to 25 February 2018 Radar Backscatter Ian Joughin
nsidc0713 MEaSUREs Greenland Ice Mapping Project (GIMP) 2000 Image Mosaic, Version 1 NSIDC-0713 N: 82, S: 60, E: -20, W: -70 30 June 1999 to 04 September 2002 Surface Morphology Ian Howat
nsidc0642 MEaSURES Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics, Version 1 NSIDC-0642 N: 83, S: 60, E: -14, W: -75 Selected winters from 2000 to 2017 Glacier Extent Ian Joughin, Twila Moon, Jonah Joughin, Taryn Black
nsidc0633 MEaSUREs Greenland Ice Sheet Mosaics from SAR Data, Version 1 NSIDC-0633 N: 83, S: 60, E: -14, W: -75 Selected winters from 2000 to 2013 Radar Backscatter, Sigma Naught Ian Joughin
nsidc0715"" MEaSUREs Greenland Ice Mapping Project (GIMP) Digital Elevation Model from GeoEye and WorldView Imagery, Version 1 NSIDC-0715 N: 83, S: 60, E: -14, W: -75 01 January 2009 to 31 December 2015 Glacier Elevation/Ice Sheet Elevation Ian Howat, Adelaide Negrete, Ben Smith
nsidc0645 MEaSURES Greenland Ice Mapping Project (GIMP) Digital Elevation Model, Version 1 NSIDC-0645 N: 83, S: 60, E: -14, W: -75 01 July 2007 to present Glacier Elevation/Ice Sheet Elevation Ian Howat, Adelaide Negrete, Ben Smith
nsidc0714 MEaSUREs Greenland Ice Mapping Project (GIMP) Land Ice and Ocean Classification Mask, Version 1 NSIDC-0714 N: 82, S: 60, E: -20, W: -70 Land Ice/Ocean Classification Ian Howat

p>Note: To obtain the Greenland Ice Mapping Project 2 (GIMP-2) Algorithm Theoretical Basis Document, use this link.

High-resolution version