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首页> 外文会议>International Conference on Water and Environment(WE-2003); 20031215-18; Bhopal(IN) >New Estimates Of The PMF At Selected Dam Sites In SW England
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New Estimates Of The PMF At Selected Dam Sites In SW England

机译：英格兰西南部选定水坝站点的PMF新估算

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摘要

All category A dams in the United Kingdom must have their spillway capable of safely passing the probable maximum flood (PMF). The PMF is estimated using estimates of probable maximum precipitation (PMP) and a runoff model which converts the rainfall intto runoff. New estimates of PMP have now been published and they are about 1.6 times greater than the existing estimates. When they are used in conjunction with soil hydraulic conductivity data and the UH (unit hydrograph) model the resulting PMF at several dam sites in SW England is from 1.5 to 3.0 times greater than the spillway design flood. This result implies that without the effects of any future climate change to; warmer and wetter conditions, dam spillways in the United Kingdom are seriously underdesigned.
机译：英国的所有A类大坝必须具有能够安全通过可能的最大洪水（PMF）的溢洪道。 PMF是使用可能的最大降水量（PMP）估计值和将降雨转换为径流的径流模型估算的。现在已经发布了PMP的新估算值，它们是现有估算值的1.6倍左右。当将它们与土壤水力传导率数据和UH（单位水位图）模型结合使用时，英格兰西南部几个水坝站点的最终PMF是溢洪道设计洪水的1.5到3.0倍。这一结果意味着，不受未来任何气候变化的影响；在温暖潮湿的条件下，英国的大坝溢洪道设计严重不足。

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