Evaluating the Impact of Engineering Works in Megatidal Areas Using Satellite Images—Case of the Mont-Saint-Michel Bay, France

A decade-long engineering project aimed at restoring the maritime landscape around Mont-Saint-Michel, France, has shown mixed results. Satellite imagery analysis from 2007 to 2023 revealed significant erosion of salt meadows to the southwest but limited changes to the southeast. Meanwhile, sedimentation increased notably in the northeast, indicating ongoing silting issues. The study used remote sensing to assess large-scale hydrosedimentary impacts, focusing on channel migration and vegetation dynamics. While the project sought to prevent the Mont from being surrounded by expanding salt meadows, its effectiveness remains uncertain, highlighting the complexities of managing megatidal environments.

Deroin, J.-P. (2023). Evaluating the Impact of Engineering Works in Megatidal Areas Using Satellite Images—Case of the Mont-Saint-Michel Bay, France. GeoHazards, 4(4), 453–474. https://doi.org/10.3390/geohazards4040026