To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S1. Damage evolution between October 2014 and July 2020 at PIG and TG from Sentinel-1 GRD backscatter image time series highlighting the development of damage areas at in zoom areas P1 and P2 (for Pine Island Glacier) and T1 (for Thwaites Glacier) and the tearing apart of the shear zones. Damage accelerates ice shelf instability and mass loss in Amundsen Sea Embayment Stef Lhermitte, Sainan Sun, Christopher Shuman, Bert Wouters, Frank Pattyn, Jan Wuite, Etienne Berthier, and Thomas Nagler PNAS. 2020. 117:24735-24741 DOI: 10.1073/pnas.1912890117 Download Original Video Browse All Videos »