Flooding area of the Roanne (2004) in Corrèze

Lot_ZI_Roanne_2004
Flooding area of the Roanne (2004) in Corrèze

Municipalities of Beynat, Sérilhac, Lanteuil, Albignac, Dampniat

tables of the atlas of the flooding areas of the Roanne by hydrogeomorphological approach (naturalist) outside the area of stakes and supplemented by a more detailed approach allowing to qualify the hazard in the crossing of the village of the commune of Lanteuil

Table of flooded areas according to their estimated frequency (frequent raw return 1 to 5 years; frequent return floods 5 to 15 years; exceptional floods returning > 100 years) in view of the morphology of the valley for the river la Roanne (between the confluence with the Corrèze downstream and the place called “Moulin de Cors” municipality of Beynat upstream) for the sectors without stakes and, for the area at stake (bourg of Lanteuil) table of the qualified hazard after extrapolation for a centennial flood of the profile along the flood of 2001 (calmed on flood marks) (uncertainties: accuracy at a few decimeters) reported on the topography made.

Lot_ZI_Roanne_2004
本数据集为2004年科雷兹省（Corrèze）境内罗讷河的洪水区域数据集。
涉及覆盖的市镇包括：贝耶纳（Beynat）、塞里亚克（Sérilhac）、朗特伊（Lanteuil）、阿尔比尼亚克（Albignac）、当普尼亚（Dampniat）。
数据集包含采用自然主义水文地貌学方法编制的罗讷河洪水区域图集表格，覆盖非防洪管控区域，并补充了针对朗特伊市镇村庄过境河段的精细化灾害等级评定方法。
针对非防洪管控区域的罗讷河河段（下游至与科雷兹河汇流处，上游至贝耶纳市镇境内的“科尔磨坊（Moulin de Cors）”点位），本数据集提供基于河谷地貌的洪水频率分区表格：其中常规洪水重现期为1~5年，频发洪水重现期为5~15年，极端洪水重现期大于100年；针对风险管控区域（朗特伊镇区），则基于2001年洪水河道剖面（通过洪水痕迹校准）推演百年一遇洪水场景，生成经定级的灾害表格，该数据基于实测地形制作，精度误差为数分米，存在一定不确定性。