PPRN perimeter flooding by overflow of the Seugne and terrain movements of the municipality of Jonzac in Charente-Maritime

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.本数据集包含PPRN（PPRN）各发展阶段的边界范围。此类边界的核心特征为：系官方行为所产生的法定结果，且自明确规定的日期起生效，具体包括以下三类： ——（自然）PPR（PPR）审批令中载明的法定边界； ——对应经批准的RPP（RPP）所规制的风险暴露范围，该经批准的边界属于公共役权（PPRN的PM1类型）； ——研究范围，即开展危害研究的覆盖范围。