Investigating Dynamic Thinning in the Jakobshavn Isbrae Catchment Area Using Field Data and Altimetry Observations
de la Peņa, Santiago1; Santiago, de la Peņa1; Howat, Ian1; Nienow, Peter2
1Ohio State University, UNITED STATES; 2University of Edinburgh, UNITED KINGDOM
Jakobshavn glacier in western Greenland is one of the fastest flowing glaciers in the world; it loses about 6.5% of the total Greenland ice sheet discharge, and in the last decade its speed has more than double to about 40 m/day in the summer in 2012. Dynamic thinning (i.e. thinning caused by ice flow dynamics) has spread in the last decade, and it is not known what are implications this has to the stability of the Greenland Ice Sheet interior.