River Flood Maps (FRM_FH_RIVER_DEPTH_M)

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.本数据集涵盖以下河流洪水概率等级： - 高概率：对应10年一遇洪水重现期 - 中等概率：对应200年一遇洪水重现期 - 低概率：包含两类情景，其一为1000年一遇洪水重现期，其二为结合英国2009年气候预测（UKCP09）高排放情景下2080年代气候变化影响后的200年一遇洪水情景 河流灾害地图将展示以下内容（如可获取）： - 洪水淹没范围 - 洪水水深 - 适宜场景下的洪水流速 本研究采用的气候变化情景，基于英国2009年气候预测（UKCP09）针对2080年高排放情景下95%分位数的预测结果设定。中等与低概率洪水事件的选取标准与苏格兰规划政策中采用的洪水重现期规范保持一致，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。