Coastal Flood Maps (FRM_FH_COASTAL_EXTENT_M)

The following probabilities are available for coastal 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 coastal hazard maps show (where available): - Flood extent - Flood depth's 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海岸洪涝相关概率等级划分如下： - 高概率：对应10年重现期（return period） - 中概率：对应200年重现期 - 低概率：涵盖1000年重现期情景，以及基于英国气候预估2009（UKCP09）高排放情景下2080年代的200年重现期叠加气候变化影响的情景。 海岸灾害地图将在可获取的情况下展示以下内容： - 洪涝淹没范围 - 适宜场景下的洪涝水深 本次研究采用的气候变化情景，基于英国气候预估2009（UKCP09）针对2080年高排放情景的95%分位数预测结果。中、低概率洪涝事件的选取标准与苏格兰规划政策中采用的重现期规范保持一致，而高概率等级的选取则契合过去数十年间观测到的实际洪涝事件特征。