Map Viewing Service (WMS) of the dataset: Perimeter of the PPRN of the commune of Château d’Oléron in Charente-Maritime — Forest fires and coastal risks (coastal erosion and marine submersion).

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（PPRN）不同发展阶段的边界信息。此类边界的核心特征为：系官方行政行为所产生的法定边界，且自指定生效日期起产生法律效力，具体分类如下： — 自然属性PPR（PPR）指令书中载明的法定适用范围； — 与经核准的RPP（RPP）所规制范围相对应的风险暴露范围，该经核准的边界属于公用役地范畴（对应PPRN的PM1（PM1））； — 研究覆盖范围，即开展危险性研判的空间边界范畴。