Map of the flood hazard in the commune of Isle de Noé (Gers)

Area exposed to flood hazard shown on the hazard map used for risk analysis of the RPP. The hazard map is the result of the study of hazards, the objective of which is to assess the intensity of each hazard at any point in the study area. 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. 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).本数据集为用于RPP风险分析的灾害地图（hazard map）中所标注的受洪水灾害（flood hazard）威胁的区域。该灾害地图为灾害专项研究的成果，其研究目标为评估研究区域内任意点位的各类灾害强度。据此可在研究边界范围内划定若干区域，并依据灾害等级完成分级分区。在研究区域内某一特定点位分配灾害等级时，需综合考量致灾现象的发生概率及其强度量级。受防护结构（protective structures）保护的区域需予以标注（可采用特定标注方式），因为即便设有防护结构，此类区域仍存在遭受灾害的风险（例如防护结构发生溃决或防护效能不足的情形）。