Map Viewing Service (WMS) of the dataset: Perimeter of the PPRN of the municipality of Ste-Marie-de-Ré in Charente-Maritime — Coastal risks, coastal erosion, marine submersion and forest fire.

This dataset contains the boundaries at the different stages of the development of the PPRN. The characteristic of these perimeters is to be the consequence of an official act and to produce their effects from a specified date. This is the following: — prescribed scope contained in the prescription order of a PPR (natural); — scope of risk exposure that corresponds to the scope regulated by the approved RPP. This approved perimeter is a utility easement (PM1 for PPRNs); — scope of study which corresponds to the envelope in which the hazards were studied.本数据集收录了PPRN开发各阶段的边界信息。此类范围的核心特征为：由官方行政行为确立，且自指定日期起生效。具体涵盖以下三类： - 自然类PPR处方令中载明的法定适用范围； - 与经批准的RPP所规制范围相对应的风险暴露范围，该经批准的范围属于公用役权（适用于PPRNs的PM1）； - 对应灾害研究覆盖范畴的研究范围。