Two major uncertainties in the behavior of Antarctic ice are reduced.
Map of ice speed in the study area on the west cost of the Antarctic Peninsula.
Copernicus, International Bathymetric Chart of the Southern Ocean , Reference Elevation Model of Antarctica , British Antarctic Survey , Ben Wallis, University of LeedsThe entire Antarctica coastline is monitored once a week by the Copernicus Sentinel-1 satellite, which the European Space Agency and European Commission operate. As the satellite has synthetic aperture radar, which can "see" through clouds, glacier measurements can be conducted both day and night.
Glaciers on the peninsula's western coast drain ice from the ice sheet into the Southern Ocean. According to the analysis of the satellite data from 2014 to 2021, the glacier speed-up occurs in the summer when the snow melts and the temperature of the Southern Ocean rises.
"This study highlights how high-resolution satellite images can help us monitor how the environment is changing in remote regions," said Craig Donlon of the European Space Agency. "Future satellites, such as the family of Copernicus Sentinel expansion missions, promise to bring enhanced continuity and capabilities that will spearhead further insight into the characteristics and processes governing ice mass balance and sea-level rise."
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