Land at risk of flooding (TRI) of the GIS Flood Directive - Martinique - 2020 report

Geographic data set produced by the GIS Flood Directive for the territory of Guyana 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 a flood risk management plan that aims to reduce the negative impact of floods on human health, the environment, cultural heritage and economic activity. The objectives and implementation requirements are laid down 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 area and flood risk mapping for IRRs is to contribute, by homogenising and objectifying knowledge of the exposure of issues to floods, to the development of flood risk management plans (FRMPs). This dataset is used to produce the flood area maps and the flood risk map which respectively represent flood hazards and exposed issues at an appropriate scale. Their objective is to provide quantitative elements allowing a more detailed assessment of the vulnerability of a territory for the three levels of flood probability (strong, medium, low).本数据集由《GIS洪水指令》（GIS Flood Directive）针对圭亚那境内全域编制，并为满足《欧洲洪水指令》（European Flood Directive）的报告制图需求完成规范制图。2007年10月23日发布的欧盟第2007/60/EC号指令（官方公报L系列第288号，2007年11月6日，第27页）《关于洪水风险评估与管理》，对欧洲地区的防洪战略制定具有指导性影响。该指令要求编制洪水风险管理计划，以降低洪水对人类健康、生态环境、文化遗产及经济活动造成的负面影响。上述目标与具体实施要求，已在2010年7月12日颁布的《国家环境承诺法案》（LENE）及2011年3月2日发布的政令中予以明确规定。在此背景下，针对洪水风险区域（IRRs）开展洪水范围与洪水风险制图的核心目标，是通过统一并客观化各类受影响对象的洪水暴露性认知，为洪水风险管理计划（FRMPs）的编制提供支撑。本数据集可用于制作洪水范围图与洪水风险图，二者分别以适配比例尺表征洪水灾害风险与受影响对象的分布情况。上述制图成果的目标是提供量化依据，以便针对高、中、低三级洪水发生概率，开展更细致的区域脆弱性评估。