Fig. 4

Coherence (unitless) of different interferograms over Chiles-Cerro Negro on the Colombia-Ecuador border. Top row: From Sentinel-1, VV-polarized interferograms spanning 12 to 48 days, with the time span and perpendicular baseline listed. Bottom row: Topographic relief from SRTM as well as two HH=polarized RSAT2 interferograms