Sentinel-1 change analytics are limited to where Sentinel-1 data is available. While is is possible to create Areas of Interest over any location on the globe using Capella Analytics, the actual analysis is subject to sensor constraints.
The Sentinel-1 sensors do not collect over open ocean. So island locations, shipping lanes, and other off-shore may be impacted by lack of data.
In order to process Sentinel-1 data into a format used by change analytics, an elevation model is required (DEM). This limits processing to between 60 north and 56 south as depicted by the shaded elements in the map below.,