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.本次河道洪水数据集包含以下概率等级的洪水情景： - 高概率：对应10年一遇重现期 - 中等概率：对应200年一遇重现期 - 低概率：包含1000年一遇重现期洪水，以及结合英国2009年气候预估（UKCP09）2080年代高排放情景下气候变化影响修正后的200年一遇重现期洪水。 河道灾害地图将展示（如可获取）以下信息： - 洪水淹没范围 - 洪水水深 - 适用场景下的洪水流速 本数据集采用的气候变化情景基于英国2009年气候预估（UKCP09）针对2080年高排放情景下95%分位数的预测结果。中等及低概率洪水事件的选取参考了苏格兰规划政策中采用的重现期标准，而高概率洪水等级的选取则贴合近数十年间实际观测到的洪水事件特征。