Ice sheet in motion

Ice sheet in motion


13/11/2015 10:44 am


Contains modified Copernicus Sentinel data (2015)/ENVEO/ESA CCI/FFG, CC BY-SA 3.0 IGO


This map of Greenland ice sheet velocity was created using data from Sentinel-1A in January–March 2015 and complemented by the routine 12-day repeat acquisitions of the margins since June 2015. About 1200 radar scenes from the satellite’s wide-swath mode were used to produce the map, which clearly shows dynamic glacier outlets around the Greenland coast. In particular, the Zachariae Isstrom glacier in the northeast is changing rapidly, and recently reported as having become unmoored from a stabilising sill and now crumbling into the North Atlantic Ocean. (Colour scale in metres per day).

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