Simple download service (Atom) of the dataset: AZI du Vaucluse (84) — Limitations of Studies

The risk of flooding is the predominant natural risk in metropolitan France. Almost half of the municipalities are affected to varying degrees by flooding, as the share of communal areas in flooding areas varies. The risk of flooding is the subject of significant prevention efforts that need to be continued. Controlling urbanisation and reducing the vulnerability of populations in flood zones are among the objectives of the Grenelle of the Environment. Reducing the vulnerability of people in flood zones requires protective measures (e.g.: dikes) and prevention (example: flood risk prevention plans), by reducing the number of people exposed (example: control of urbanisation) and awareness of risk (e.g. preventive information). In some areas, not covered by RIPs, flood zone atlases (AZI) have been established. The AZI is a knowledge document that delimits the flood field of a watercourse on the basis of a so-called hydrogeomorphological method (a geographical approach that studies the natural functioning of a watercourse by analysing the structure of the alluvial plain). These atlases are information material with no direct regulatory scope. Nevertheless, as a flood risk knowledge tool, an AZI can support a refusal of building permits.洪水风险是法国本土（metropolitan France）最突出的自然风险。近半数市镇均遭受不同程度的洪涝影响，这是由于洪水淹没区内的市镇辖区占比各不相同。洪涝风险是当前亟需持续推进重点防控工作的核心议题。管控城市扩张、降低洪涝高风险区域内居民的脆弱性，正是环境格勒纳尔会议（Grenelle of the Environment）的核心目标之一。降低洪涝高风险区域内民众的脆弱性，需通过减少受威胁人口规模（如管控城市扩张）、提升风险认知水平（如发布预防性预警信息），并配套落实防护措施（例如堤防（dikes））与风险防控规划（例如洪涝风险防控计划）。在部分未纳入洪涝风险防控规划（RIPs，Flood Risk Prevention Plans）的区域，已建立洪涝区域图集（AZI，Flood Zone Atlases）。洪涝区域图集是一类专业知识文档，基于所谓的水文地貌学方法（hydrogeomorphological method，一种通过分析冲积平原（alluvial plain）结构，研究河流水文自然运作机制的地理学研究路径），划定某一河道的洪涝影响范围。此类图集仅作为参考资料，不具备直接的法律效力。尽管如此，作为洪涝风险认知工具，洪涝区域图集可作为否决建筑许可（building permits）申请的辅助依据。