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.本次河流洪水概率等级包含以下类别： - 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2080年代采用英国2009年气候预估（UKCP09）高排放情景下，200年一遇洪水叠加气候变化的情形 河流灾害风险图可展示以下内容（如可获取）： - 淹没范围 - 淹没水深 - 适宜场景下的洪水流速 该气候变化情景基于英国2009年气候预估（UKCP09）针对2080年高排放情景的95百分位预测结果设定。 中、低概率洪水事件的选取依据为与苏格兰规划政策中采用的重现期保持一致；而高概率洪水事件的选取则因其可反映近数十年来已观测到的实际洪水事件。