River Flood Maps (FRM_FH_RIVER_DEPTH_H)
收藏资源简介:
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.
针对河流洪水,存在以下概率等级: - 高概率:10年一遇重现期(return period) - 中概率:200年一遇重现期 - 低概率:包含1000年一遇重现期,以及2080年代采用英国气候预测2009(UKCP09)高排放情景下,200年一遇重现期叠加气候变化影响的情况。 河流灾害风险图将展示以下内容(如可获取): - 淹没范围(Flood extent) - 淹没深度(Flood depth) - 适用场景下的洪水流速(Flood velocities) 本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%分位数预测结果设定。中、低概率洪水事件的选取与苏格兰规划政策中采用的重现期标准保持一致,而高概率洪水事件的选取则反映了近数十年间实际观测到的洪水事件特征。



