Simple download service (Atom) of the data package: Atlas of flood zones (AZI) of Lorraine and the administrative district of the Rhine-Meuse basin

The data package contains the atlas of the flooding areas of Lorraine and the Rhine-Meuse basin district. In Lorraine and on the Rhine-Meuse basin administrative district, the flooding atlas shall contain, when it has been produced, the following information concerning the flood hazard: Modelled centennial flood, Hydrogeomorphological Crue, historical floods. ** Modelled centennial flood: Area exposed to the theoretical flood calculated from the analysis of past floods and which has a per cent chance to occur each year. It can also be said that the centennial flood occurs on average ten times per millennium. On the Moselle stream, the modelled flood of 1947 was represented in the modelled centennial flood layer because its return period is more than 100 years. ** Hydrogeomorphological flood: Maximum flooding area defined by the study of fluviatile hydrosystems. The demarcated area on CARTORISQUE consists of the minor bed, the major bed and the exceptional major bed of the watercourse. It corresponds to the flooding field of exceptional floods. ** Historical flood: Areas exposed to historical flooding observed in the past VERBATIM: The three types of zoning (the modelled centennial flood, the surface obtained by the hydrogeomorphological method, the historical floods) result from different methods and therefore have a different meaning. Any exploitation or representation of these data must be made knowingly with a distinction between the different zonings. Data produced on the Large Flood Risk Territories (HRT) under the Flood Directive have not been added to previously produced Flood Hazardous Area Atlas (AZI) data. They should be added to supplement the AZI. Files contained in the data package: On Lorraine and the Rhine-Meuse Basin — AZI_crue_centennale_b41.TAB, — AZI_crues_historical_b41.TAB, — AZI_methode_hydrogeomorphological_b41.TAB. On Lorraine: — AZI_crue_centennale_r41.TAB, — AZI_crues_historical_r41.TAB, — AZI_methode_hydrogeomorphological_r41.TAB. On the Rhine-Meuse Basin — AZI_crue_centennale_brm.TAB, — AZI_crues_historical_brm.TAB, — AZI_methode_hydrogeomorphological_brm.TAB.本数据包包含洛林（Lorraine）与莱茵-默兹河盆地区域的洪水淹没区图集。 在洛林及莱茵-默兹河盆地区域，本洪水图集编制完成后，应包含以下与洪水风险相关的信息：模拟百年一遇洪水（Modelled centennial flood）、水文地貌型洪水（Hydrogeomorphological flood）、历史洪水（Historical flood）。 ** 模拟百年一遇洪水（Modelled centennial flood）：指基于历史洪水分析得到的理论洪水波及范围，该洪水每年发生概率为1%，即平均每千年约发生10次。在摩泽尔河（Moselle stream）流域，1947年的模拟洪水被纳入模拟百年一遇洪水图层，因其重现期超过100年。 ** 水文地貌型洪水（Hydrogeomorphological flood）：通过河流水文系统研究确定的最大淹没范围。CARTORISQUE制图图层中划定的区域包含河道的主槽、漫滩及极端漫滩范围，对应极端洪水的淹没区域。 ** 历史洪水（Historical flood）：指过往观测到的历史洪水所波及的区域。 原文说明： 上述三类分区（模拟百年一遇洪水区域、水文地貌法得到的淹没范围、历史洪水区域）基于不同方法生成，因此具有不同的物理意义。对这些数据进行任何使用或可视化呈现时，均需明确区分不同类型的分区。 根据《洪水指令》（Flood Directive）编制的大洪水风险区域（Large Flood Risk Territories, HRT）数据，尚未纳入此前已完成编制的洪水危险区域图集（Flood Hazardous Area Atlas, AZI），需将其补充以完善该图集的数据内容。 本数据包包含以下文件： 针对洛林及莱茵-默兹河盆地区域： — AZI_crue_centennale_b41.TAB — AZI_crues_historical_b41.TAB — AZI_methode_hydrogeomorphological_b41.TAB 针对洛林地区： — AZI_crue_centennale_r41.TAB — AZI_crues_historical_r41.TAB — AZI_methode_hydrogeomorphological_r41.TAB 针对莱茵-默兹河盆地区域： — AZI_crue_centennale_brm.TAB — AZI_crues_historical_brm.TAB — AZI_methode_hydrogeomorphological_brm.TAB