Map Viewing Service (WMS) of the dataset: PPRI hazard zone in the Pilatri watershed

Area exposed to one or more hazards represented on the hazard map used for risk analysis of RIP in the Pilatri watershed.
The hazard map is the result of a flood risk study conducted by BRL Engineering in July 1997, which resulted in the development of the first PPRI in the Pilatri watershed approved on 23/09/2003.
The evaluation method is specific to each hazard type. It leads to the delimitation of a set of areas on the study perimeter constituting a zoning graduated according to the level of the hazard. The allocation of a hazard level at a given point in the territory takes into account the probability of occurrence of the dangerous phenomenon and its degree of intensity.
All hazard areas shown on the hazard map are included. Areas protected by protective structures must be represented (possibly in a specific way) as they are always considered subject to hazard (case of breakage or inadequacy of the structure).
Hazard zones can be described as developed data to the extent that they result from a synthesis using multiple sources of calculated, modelled or observed hazard data. These source data are not concerned by this class of objects but by another standard dealing with the knowledge of hazards.

本数据集对应皮拉特里（Pilatri）流域RIP风险分析所采用的灾害分布图（hazard map）中表征的一处或多处灾害暴露区域。
该灾害分布图源自1997年7月由BRL工程公司（BRL Engineering）开展的洪水风险研究，该项研究促成了皮拉特里流域首个PPRI的编制，并于2003年9月23日获得审批通过。
本评估方法针对不同灾害类型定制化设计，通过对研究区域范围内的多片区域进行划定，形成按灾害等级分级的分区体系。针对某一特定地域点位的灾害等级赋值，需综合考量该危险现象的发生概率与强度等级。
灾害分布图上标注的所有灾害影响区域均纳入本数据集范围。受防护结构保护的区域亦需进行标注（可采用特定标注方式），因为即便设有防护结构，此类区域仍存在受灾害影响的风险——例如防护结构发生破损或功能失效的情况。
灾害影响区域可被视作经加工整合的数据集，其来源于对多源计算、建模或观测所得灾害数据的综合汇总。本数据集类别不涵盖上述原始源数据，相关源数据需遵循另一项针对灾害认知的标准进行管理。