River Flood Maps (FRM_FH_RIVER_EXTENT_M_CC)

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.本次数据集涵盖以下河洪概率等级： - 高概率——10年一遇重现期 - 中概率——200年一遇重现期 - 低概率——包含两种场景：其一为1000年一遇重现期；其二为基于英国2009年气候预测（UKCP09）高排放情景下2080年代的200年一遇重现期叠加气候变化影响的场景。 该河流灾害地图（如可获取）将展示以下内容：洪水淹没范围、洪水水深，以及适宜场景下的洪水流速。 本研究所用气候变化情景基于英国2009年气候预测（UKCP09）中2080年高排放情景下的95百分位预测结果设定。中、低概率洪水场景的选取遵循《苏格兰规划政策》中采用的重现期标准，而高概率洪水场景的选取则贴合近数十年来实际观测到的洪水事件特征。