遇见数据集

Dataset Direct Download Service (WFS): PPR Sarrance (64DDTM19970024) — Area of hazard of the Risk Prevention Plan Sarrance Flood (64506), department of Pyrénées-Atlantiques.

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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.

本类数据指代用于风险预防计划(Risk Prevention Plan, RPP)风险分析的灾害地图上标注的、暴露于一种或多种灾害的区域。该灾害地图源于灾害专项研究,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,最终会在研究范围内划定若干区域,形成按灾害等级分级的区划方案。对某一地域点位的灾害等级赋值时,需综合考量该危险现象的发生概率及其强度等级。 针对多随机风险预防计划网络(PPRN),灾害地图上的每个区域通常会通过其所暴露的各类灾害对应的编码进行标识。本类数据涵盖灾害地图上标注的全部灾害区域。受防护结构保护的区域亦需纳入标注(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风险(如防护结构破损或失效的情形)。 灾害区域可视为衍生数据,其源于对多源计算、建模或观测所得的灾害数据的综合分析。本类数据不涉及上述源数据,源数据由另一项针对灾害认知的标准规范进行管理。 研究区域内的部分区域被视为“无灾害或灾害可忽略区域”,即经研究确认灾害强度为零的区域。此类区域不属于本类数据范畴,无需作为灾害区域进行标注。但针对自然风险预防计划(RPP),监管区划可能将部分未受灾害影响的区域划定为规定区域(详见风险预防计划(PPR)类别的定义)。 本类数据包含风险预防计划(PPR)灾害地图中展示的、暴露于一种或多种灾害的区域统计表。 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, Geographic Information System)数据由经批准的风险预防计划网络(PPRN)研发过程中使用的数字数据标准化而来。本单位不保证其与适用官方文件的完整性及准确性一致。与第三方相关的正式文件可前往市政厅或省政府查阅。

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