Fig. 3
From: Complex hazard cascade culminating in the Anak Krakatau sector collapse
Deformation maps and island perimeter changes. a InSAR time series showing the movement of the ground in the satellites’ line-of-sight (LOS) direction, generated for the period between 1 January and 22 December 2018 for one ascending and two descending tracks. The different viewing geometries reveal the deformation of the southwestern flank of Anak Krakatau. b Average vertical (colors, red is down) and E-W (black vector symbols) movement computed from the different InSAR viewing geometries. c Deformation trends for the different tracks (average pixel values in the inner sector collapse scarp outline) showing pronounced trend changes in June–September 2018, labeled I and II, and identifying the 22 December 2018 collapse event. Maps created using the GMT/MATLAB Toolbox59
