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.
本数据集涵盖以下河流洪水概率等级对应的洪水事件: - 高概率:10年一遇重现期(return period)的洪水事件 - 中概率:200年一遇重现期(return period)的洪水事件 - 低概率洪水事件包含两类:1000年一遇重现期(return period)的洪水事件,以及基于英国气候预测2009(UKCP09)高排放情景下2080年代气候变化修正后的200年一遇重现期(return period)的洪水事件。 本次提供的河流灾害地图(若可获取)将展示以下内容: - 洪水淹没范围 - 洪水深度 - 适宜场景下的洪水流速。 该气候变化情景由英国气候预测2009(UKCP09)针对2080年代高排放情景的95%分位数预测结果定义。 本次选取中、低概率洪水事件,以匹配《苏格兰规划政策》中采用的重现期标准;而高概率洪水事件的选取则旨在反映近数十年来实际观测到的洪水事件特征。



