Simple download service (Atom) of the dataset: PPR ORTHEZ (64DDTM20000008) — Risk prevention zone of ORTHEZ flood prevention plan (64430), department of Pyrénées-Atlantiques.

Area exposed to one or more hazards represented 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. 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. For multi-random PPRNs, each zone is usually identified on the hazard map by a code for each hazard to which it is exposed. 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. Some areas within the study area are considered “no or insignificant hazard zones”. These are the areas where the hazard has been studied and where it is nil. These areas are not included in the object class and do not have to be represented as hazard zones. However, in the case of natural RPPs, regulatory zoning may classify certain areas not exposed to hazard as prescribing areas (see definition of the PPR class). Tables of areas exposed to one or more hazards, shown on the map of hazards of the PPR. Warning: The data disseminated is informative and not enforceable against the third party. GIS data were standardised from the digital data used in the development of approved PPRNs. We do not guarantee their completeness and accuracy in relation to the applicable documents. Official documents against third parties may be consulted at the Town Hall or the Prefecture.本数据集指用于RPP（RPP）风险分析的灾害地图（hazard map）上标注的、遭受一种或多种灾害影响的区域。该灾害地图是灾害研究的成果，其研究目标为评估研究区域内任意点位的各类灾害强度。评估方法因灾害类型而异，可基于灾害等级对研究范围内的多个区域进行划分，形成分级分区。针对区域内特定点位的灾害等级赋值，需综合考量该危险现象的发生概率及其强度等级。 针对多随机PPRN（PPRN），灾害地图上的每个分区通常会通过其受影响的各类灾害对应的编码进行标识。本数据集涵盖灾害地图上标注的全部灾害影响区域。受防护结构保护的区域仍需标注（可采用特定标注方式），因为此类区域始终存在受灾害影响的可能（例如防护结构失效或防护能力不足的情况）。 灾害分区可被视为经整合后的数据集：其整合了多源计算、建模或观测得到的灾害数据。本数据集类别不涉及这些源数据，相关内容由另一项针对灾害认知的标准规范进行定义。 研究区域内部分区域被视为"无灾害或灾害影响可忽略区域"。此类区域已完成灾害评估且灾害强度为零，因此不属于本数据集类别，无需作为灾害分区进行标注。但针对自然类RPP（RPP），监管分区可能会将部分未受灾害影响的区域划定为规定区域（详见PPR类别（PPR class）的定义）。 本数据集涵盖RPP灾害地图上标注的、受一种或多种灾害影响的区域表格。 警告：本次发布的数据仅为参考信息，不具备对第三方的约束力。地理信息系统（GIS）数据基于经批准的PPRN（PPRN）研发过程中使用的数字数据进行标准化处理。我方不保证数据与适用文件相比的完整性与准确性。针对第三方的官方文件可前往市政厅或省府查阅。