Simple download service (Atom) of the dataset: PPRL de La Faute-sur-Mer — Reference Ratings 2100 of the Plan for the Prevention of Predictable Natural Risks Coastal — Vendée

The reference rating corresponds to the rating of the water body modelled to the right of an existing project or construction. Therefore, the reference rating does not correspond to a water level but to the altimetry of the water body. The height corresponds to the difference between the reference and the altimeter dimensions of the natural terrain.参考高程值（reference rating）对应现有工程或建筑右侧模拟水体的标高参数。因此，该参考高程值并非表征水位，而是对应水体的测高（altimetry）数据。该高程值等于参考高程值与自然地形测高数值之间的差值。