River Flood Maps (FRM_FH_RIVER_DEPTH_H)

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 river hazard maps show (where available): - Flood extent - Flood depth - Flood velocities where appropriate. The climate change scenario has been defined by United Kingdom Climate Projection 2009 (UKCP09) predictions for 2080 high emissions 95%ile predictions. Medium and low probability flood events were selected for consistency with return periods used in Scottish Planning Policy, whereas the high probability was chosen as it is reflective of observed events experienced over the last few decades.本河流洪水数据集涵盖以下概率等级： - 高概率洪水：对应10年一遇重现期 - 中等概率洪水：对应200年一遇重现期 - 低概率洪水：包含1000年一遇重现期洪水，以及基于英国气候预测2009（UKCP09）高排放情景、针对2080年代的气候变化影响修正后的200年一遇重现期洪水。 该河流灾害风险图（如有提供）包含以下要素： - 洪水淹没范围 - 洪水水深 - 适宜场景下的洪水流速。 本研究所用的气候变化情景，由英国气候预测2009（UKCP09）针对2080年代高排放情景下的95百分位预测值确定。 中等及低概率洪水事件的选取，与苏格兰规划政策中采用的重现期标准保持一致；而高概率洪水事件的选取，则反映了近数十年来已观测到的实际洪水事件特征。