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.本次数据集包含以下河道洪水概率等级： - 高概率：10年一遇重现期 - 中概率：200年一遇重现期 - 低概率：结合2080年代英国气候预测2009（UKCP09）高排放情景下的气候变化影响的1000年一遇与200年一遇重现期洪水。 河道灾害地图将展示（如可获取）以下内容： - 洪水淹没范围 - 洪水水深 - 适用场景下的洪水流速。 本次气候变化情景采用英国气候预测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标准与《苏格兰规划政策》中采用的重现期规范保持一致，而高概率洪水等级的选取则反映了过去数十年间实际观测到的洪水事件特征。