Areas subtracted from flooding (protected from natural flooding)

Table of areas subtracted from flooding (area protected from natural flooding by the existence of a set of dikes and sections). A series of spatial data produced by the GIS High Flood Risk Land Flood Directive (TRI) of the French Metropolis and mapped for reporting purposes for the European Flood Directive. European Directive 2007/60/EC of 23 October 2007 on the assessment and management of flood risks (OJ L 288, 06-11-2007, p. 27) influences the flood prevention strategy in Europe. It requires the production of flood risk management plans to reduce the negative consequences of flooding on human health, the environment, cultural heritage and economic activity. The objectives and implementation requirements are set out in the Law of 12 July 2010 on the National Commitment for the Environment (LENE) and the Decree of 2 March 2011. In this context, the primary objective of flood and flood risk mapping for IRRs is to contribute, by homogenising and objectivating knowledge of flood exposure, to the development of flood risk management plans (WRMs). This dataset is used to produce flood surface maps and flood risk maps that represent flood hazards and issues at an appropriate scale, respectively. Their objective is to provide quantitative evidence to further assess the vulnerability of a territory for the three levels of probability of flooding (high, medium, low).洪水减免区域表（指通过布设堤防与区段免受自然洪水侵袭的受保护区域）。 本数据集为法国大都会区依据《高洪水风险土地洪水指令（TRI）》，借助地理信息系统（Geographic Information System, GIS）生成的一系列空间数据，并为满足欧盟洪水指令的报告编制需求完成制图。 2007年10月23日发布的《欧盟2007/60/EC号指令》（刊载于2007年11月6日官方公报L卷第288期，第27页）针对洪水风险评估与管理制定规范，深刻影响了欧盟整体防洪策略。该指令要求编制洪水风险管理计划，以减轻洪水对人类健康、自然环境、文化遗产及经济活动造成的负面影响。 该指令的目标与实施要求已在2010年7月12日发布的《国家环境承诺法（LENE）》及2011年3月2日发布的相关政令中明确。在此框架下，针对IRRs区域的洪水及洪水风险制图工作的核心目标，是通过统一认知标准、客观量化洪水暴露现状，助力洪水风险管理计划（WRMs）的编制。 本数据集可用于生成洪水淹没范围图与洪水风险图，二者分别以适宜比例尺呈现洪水灾害风险与相关风险问题。其核心目标是提供量化依据，以进一步评估某一区域在高、中、低三级洪水发生概率下的脆弱性水平。