1960—2016年辽河流域极端降水时间序列变化

The Change of Time Series of Extreme Precipitation in Liaohe River Basin in 1960—2016

基于1960—2016年辽河流域37个连续性好的气象台站的日降水数据,采用多种方法分析辽河流域极端降水近56年的变化,并判断了辽河流域极端降水与ENSO的相关关系。研究结果表明:辽河流域在1960—2016年间降水的极端性总体呈不明显的下降趋势。辽河流域极端降水的综合得分在未来的变化趋势不显著,并与ENSO存在一定关系。

Based on the data from 37 stations around the Liaohe River Basin,this paper analy-zed the temporal variation of extreme precipitation from 1960 to 2016 and investigated the rela-tionship between the extreme precipitation in Liaohe River Basin and the ENSO.The conclusion were as follows:(a)The extreme precipitation of the Liaohe River Basin has an downward trend in the past 56 years.(b)The trend of extreme precipitation score in Liaohe River Basin was not significant and was related to ENSO.