Movie S1.

Annual total, SMB-related, and ice dynamics-related thickness change rates of the GrIS for 2003–2009 balance years from ICESat, ATM, and LVIS laser altimetry observations. Dotted lines on the dynamic thickness change maps mark the ELA (average 2003–2009 SMB = 0). Ice sheet boundary is from ref. 6, and black regions show weakly or not connected glaciers and ice caps. See Fig. 1D for locations of the elevation change time series.