The high Arctic has experienced a large warming in the last two decades. The Greenland ice sheet is currently undergoing rapid changes in response to the increased temperatures, which have led to a steady increase in melting processes. One effect of the increasing melt is the increased advance of meltwater to the base of the ice sheet, so that the ice can slide over the bedrock more easily. A pan-Greenland quantification of the hydrological budget does not yet exist.
The ESA project 4DGreenland aims to advance the understanding of the Greenland Ice Sheet’s surface, supra and sub-glacial hydrology and its evolution and interactions.
The project addresses the following specific objectives:
To achieve these objectives, the consortium will make use of a plethora of Earth Observation missions such as CryoSat2, Sentinel1&2, ArcticDEM, GRACE, GRACE-FO, ICESat-2, TanDEM-X and Landsat, in conjunction with numerical models of ice sheet.
The consortium of the 4DGreenland project consists of 9 different partners. DLR provides TanDEM-X data to measure elevation changes of remote ice sheets and to validate hydrologic products in high geometric resolution.
2020 – 2022
Technical University of Denmark (DTU, Prime), GEUS, Lancaster University (LU), Environmental Earth Observation IT GmbH (ENVEO), Finish Meterological Institute (FMI), German Aerospace Center (DLR), Earthwave, Sciences [&] Technology Corporation (S&T) und Shepherd Space ltd.