River Flood Maps (FRM_FH_RIVER_EXTENT_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,现有以下概率分级: - 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,以及结合2080年代英国2009年气候预估(UKCP09)高排放情景下气候变化影响的200年一遇洪水。 河流灾害地图(如可获取)将展示以下内容: - 洪水淹没范围 - 洪水水深 - 适用场景下的洪水流速。 本研究采用的气候变化情景,基于英国2009年气候预估(UKCP09)针对2080年代高排放情景的95百分位预测结果定义。 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要求保持一致,而高概率洪水事件的选取则贴合近几十年来观测到的实际洪水事件特征。



