Satellite data fill in gaps in our seafloor bathymetry maps.

Shallow waters are not easy to access for the large vessels normally used in seabed surveys, leaving a gap in marine charts in the most used and most challenging areas for navigation. Satellite data can be used to fill this gap, as more of the light reflected from the seafloor in deep waters is scattered, so shallower areas appear lighter in satellite images. 

A study to improve observations of seafloor depth from satellites was carried out by TechWorks, the National Centre for Geocomputation at Maynooth University and the Geological Survey of Ireland. The study was funded by Science Foundation Ireland under their Industry Fellowship program and the results have been  published online in Hydro International