Dataset Direct Download Service (WFS): Scopes of the Natural Risk Prevention Plan (PPRN) of Mées — Landes (40)

This dataset contains the boundaries at the various stages of the development of the Natural Risk Prevention Plan (NPP). 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 perimeter in the prescription order of a PPRN;
— scope of risk exposure that corresponds to the scope regulated by the approved RPP. This approved perimeter is a utility easement (PM1);
— scope of study which corresponds to the envelope in which the hazards were studied.

本数据集收录了自然风险防治计划（Natural Risk Prevention Plan, NPP）编制各阶段的边界信息。此类边界的核心特征为：均由官方公务行为产生效力，并自指定日期起正式生效。
具体包括以下三类：
- PPRN指令中明确规定的划定边界；
- 与经批准的RPP所规制范围相对应的风险暴露范围，该获批边界即为公共役权（utility easement, PM1）；
- 对应灾害研究覆盖范围的研究范畴，即开展灾害研究时所划定的研究边界。