PPRN perimeter flooding by overflow of the Charente river of the municipality of Brives-sur-Charente 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.

本数据集收录了PPRN在各发展阶段的边界数据。此类边界的核心特征为：由官方行为所创设，并自明确指定的日期起产生法律效力，具体如下：
— （自然）PPR的审批令中载明的法定划定边界；
— 与经核准的RPP所规制的边界相对应的风险暴露范围；该经核准的边界属于公共役权（PM1对应PPRN）；
— 与危险评估所覆盖的空间范围相对应的研究范畴。