MORPHODYNAMICS OF THE MONT-SAINT-MICHEL BAY (WEST FRANCE) SINCE 1986 BY REMOTE-SENSING DATA

The Mont-Saint-Michel bay covers an area of 500 km(2) and is character ised by an exceptionally high tide (up to 15 m). These two parameters allow the study of its tidal flat by a remote sensing sun ey. This pap er deals with a global and quantitative approach to an analysis of the bay using satellite data during the last 10 years. Although the weste rn part of the bay is quite stable, the eastern part sands up. Concurr ently, the channels do not easily evacuate the eroded sediments. Thoug h vegetation development has decreased since the last evaluation, the schorres are still progressing on the eastern part. ((C) Academie des sciences / Elsevier, Paris.)