river flooding (low likelihood) - sepa

The following probabilities are available for river flooding: High - 10 year return period, Medium - 200 year return period, Low - 1000 year return period and 200 year return period plus climate change using the UKCP09 high emissions scenario for the 2080s. The climate change scenario has been defined by United Kingdom Climate Projection 2009 (UKCP09) predictions for 2080s high emissions 67th percentile. The river hazard maps show (where available): - Flood extent, flood depth, Flood velocities (where appropriate). https://map.sepa.org.uk/server/rest/services/Open/Flood_Maps/MapServer When using this dataset, a visibility scale has been set due to the size and number of records.针对河流洪水，现有如下概率分级：高概率对应10年一遇重现期；中概率对应200年一遇重现期；低概率涵盖两类情形：1000年一遇重现期，以及基于2080年代英国气候预测2009（UKCP09）高排放情景、叠加气候变化影响的200年一遇重现期。前述气候变化情景由英国气候预测2009（UKCP09）针对2080年代高排放情景的第67百分位预测结果定义。本河流灾害地图将展示（如有提供）：洪水淹没范围、洪水深度及（适当时的）洪水流速。相关链接：https://map.sepa.org.uk/server/rest/services/Open/Flood_Maps/MapServer。使用本数据集时，鉴于记录的规模与数量，已设置可见性缩放尺度。