Coastal waters are dynamic and changing environments. Deriving bathymetry from satellite images provides a cost effective and sustainable way to deliver information about remote and inaccessible areas of the seabed. Sentinel-2 images that contain low cloud cover and low water turbidity are needed for the success of this application.
If an image meets these criterion, atmospherics corrections and masks are applied before being ran through a series of validation protocols.
The end result is a Digital Terrain Model (DTM) of the area of interest in the Sentinel-2 image. DTMs from the same area but over a long temporal scale can then be analysed to quantify any changes in the seabed that have occurred.