遇见数据集

Dataset Direct Download Service (WFS): PPR Accous (revision) (64DDTM20060008) — hazard zone of the Accous flood prevention plan (64006), 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.

本类对象指用于RPP风险分析的灾害地图上标注的、受一种或多种灾害影响的区域。灾害地图为灾害研究的成果,其研究目标为评估研究区域内任意点位各灾害的强度。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分区方案。对区域内特定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PPRN,灾害地图上通常会通过编码为每个区域标识其受影响的灾害类型。本类对象涵盖灾害地图上标注的全部灾害影响区域。防护结构覆盖的区域也必须(可采用特定方式)予以标注,因为即便设有防护结构,该区域仍存在灾害影响风险(如结构损毁或防护失效的情形)。 灾害分区可被视为经加工的数据集,其依托多源计算、建模或观测得到的灾害数据综合生成。本类对象不涉及上述源数据,相关源数据由另一项针对灾害认知的标准规范管理。 研究区域内部分区域被视为“无灾害或灾害可忽略区域”,即经研究确认灾害影响为零的区域。此类区域不属于本类对象范畴,无需作为灾害分区进行标注。但针对自然RPP,监管分区可能将未受灾害影响的区域划定为规定管控区(详见PPR类的定义)。 PPR灾害地图上标注的受一种或多种灾害影响的区域统计表。 警告:本数据集仅为参考信息,不得作为对第三方的执法依据。地理信息系统(GIS,Geographic Information System)数据由经批准的PPRN研发所用的数字化数据标准化处理而来。我方不保证其与适用文件的完整性和一致性。与第三方相关的正式文件可前往市政厅或省府查阅。

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