Bathymetry from Simulated Swell

To estimate the quality of our method, we proceed on a simulated dataset where we control all the waves’ parameters. We use a model able to simulate each individual waves on complex bathymetries and consider complex morphological site, from 0 to 14 meters depth. The model is based on known bathymetries. Results are in good agreement with the initial bathymetry. This test made us confident about the outcome of our implementation and its application to Sentinel-2 data.

Given a known bathymetry, from zero to 14 meters in this area, we simulated the swell motion (study area: Lorient, France). Every 1seconds we created a shaded image of the swell. Then, we used these results along with our method to find again the bathymetry.

“From known bathymetry to simulated swell and back to estimated depths to ensure our implementation.”

Results from the synthetic test over Lorient, France. In situ bathymetry (left) and bathymetry retrieved by our method (right).