Introduction to the special issue on Tibet: Contemporary geodetic-geophysical observations and interpretations

Abstract

Fig. 3. The coverages of Sentinel-1A SAR images in a 12-day repeat cycle over the Himalayas. A rectangle represents a SAR frame along an ascending (red) and descending pass (blue). With such coverages, glacier changes in the entire Himalayas can be mapped every 12 days using Sentinel-1A images without the concern of cloud obstructions.