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.本数据集包含以下河道洪水概率分级： - 高概率：10年一遇重现期 - 中概率：200年一遇重现期 - 低概率：1000年一遇重现期，以及基于英国气候预测2009（UKCP09）高排放情景的2080年代气候变化影响下的200年一遇情景。 河道灾害地图包含以下可用数据（若可获取）： - 洪水淹没范围 - 洪水水深 - 适宜场景下的洪水流速。 上述气候变化情景基于英国气候预测2009（UKCP09）针对2080年高排放情景的95%分位数预测结果。 中、低概率洪水事件的选取遵循《苏格兰规划政策》中采用的重现期标准，而高概率洪水事件的选取则贴合近数十年来实际观测到的洪水事件特征。