Perimeter of the PPRN of the municipality of Yves in Charente-Maritime — (Littoral risks — coastal erosion and marine submersion)

This dataset contains the boundaries at the different stages of the development of the PPRN. The characteristic of such perimeters is to be the consequence of an official act and to produce their effects from a defined date. This is the following: — prescribed perimeter contained in the prescription order of a (natural) PPR; — scope of exposure to risks that corresponds to the perimeter regulated by the approved RPP. This approved perimeter is a public utility easement (PM1 for PPRNs); — scope of study which corresponds to the envelope in which the hazards were studied.本数据集涵盖PPRN在各发展阶段的边界范围。此类边界的核心特征为：由官方行为所确立，且自指定日期起生效。具体包括以下类别： — （天然）PPR的处方令中载明的规定边界； — 对应获批RPP所规制边界的风险暴露范围。 该获批边界属于公共地役权（public utility easement）（针对PPRN的PM1）； — 对应开展危害研究所涉覆盖范围的研究范围。