The Greenland Ice Mapping Project (GIMP) land classification and surface elevation datasets

I. M. Howat, A. Negrete, B. E. Smith
2014 The Cryosphere Discussions  
As part of the Greenland Ice Mapping Project (GIMP) we have produced three geospatial data sets for the entire ice sheet and periphery. These are (1) a complete, 15 m resolution image mosaic, (2) ice-covered and ice-free terrain classification masks, also posted to 15 m resolution, and (3) a complete, altimeter-registered digital elevation model posted at 30 m. The image mosaic was created from a combination of Landsat-7 and RADARSAT-1 imagery acquired between 1999 and 2002. Each pixel in the
more » ... age is stamped with the acquisition date and geo-registration error to facilitate change detection. This mosaic was then used to manually produce complete ice-covered and ice-free land classification masks. Finally, we used satellite altimetry and stereophotogrammetric digital elevation models (DEMs) to enhance an existing DEM for Greenland, substantially improving resolution and accuracy over the ice margin and periphery. Published by Copernicus Publications on behalf of the European Geosciences Union.
doi:10.5194/tcd-8-453-2014 fatcat:k2dfo7h2wrdczakinf2p4ksohe