State and Forecast of the Development of the Shallow Sandy Coast of the Tidal Sea (on the Example of Madagascar)

Currently, most seashores are experiencing increased erosion and retreat. To a large extent, this applies to coasts subject to the influence of high-amplitude sea tides, which is extremely negatively manifested on the accumulative coasts of oceanic islands. The solution of the problem of their dynamics, the theoretical foundations of which are still in the development stage, can be based only on the basis of wide-regional studies. This work is aimed at elucidating the features of the dynamics of such a coast using the example of a key region of a large oceanic island. The main reasons for its degradation are identified, recommendations are given for stabilizing the coastline, and the development trend according to the natural scenario is considered.