椒江流域长潭水库流域降雨多时间尺度演变分析  

Multi-time Scale Evolution Analysis of Rainfall in Changtan Reservoir of Jiaojiang River Basin

作　　者：季梦婷 鲍玥颖 王思琦 阿依克力木·海拉提 张蓉蓉 江鹏[1,2,3] JI Meng-ting;BAO Yue-ying;WANG Si-qi;AIYIKELIMU Hailati;ZHANG Rong-rong;JIANG Peng(College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China;Joint International Research Laboratory of Global Change and Water Cycle,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学水文水资源学院,江苏南京210098 [2]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [3]河海大学全球变化与水循环国际合作联合实验室,江苏南京210098

出　　处：《水电能源科学》2023年第7期4-7,71,共5页Water Resources and Power

基　　金：水文水资源与水利工程科学国家重点实验室开放基金面上项目(2021490911)。

摘　　要：为探究椒江流域长潭水库流域降雨多时间尺度演变规律,基于1960~2019年间的降雨资料划分独立降雨事件,从降雨事件尺度、季节尺度、年趋势变化与年际年代际变化这四个角度探讨了降雨事件要素演变的规律。结果表明,极端降雨事件雨强大、降雨历时长;台风雨季较梅雨季降雨历时短而雨强大,且降雨分布变化更大;梅雨季两站的降雨事件要素年趋势相近,台风季两站的降雨历时与雨强年趋势存在显著差异;两站梅雨季的降雨事件要素对El Nino事件存在较好的响应,而台风雨季El Nino/PDO-年降雨量异常偏小,易发生干旱;El Nino/PDO+年降雨量异常偏多,易发生洪涝灾害。In order to explore the evolution of rainfall at multiple time scales,this paper takes the Changtan Reservoir in Jiaojiang River Basin as an example and classifies independent rainfall events based on rainfall data from 1960 to 2019.The evolution of rainfall event elements is discussed from four perspectives of rainfall event scale,seasonal scale,changes in annual trends and interannual decadal change.The results show that the extreme rainfall events has strong rainfall and long rainfall duration;The rainfall duration of typhoon rainy season is shorter and the rainfall intensity is greater than that of the plum rainy season,and the variation of rainfall distribution is greater;The annual trends of rainfall event elements are similar between the two stations during the plum rainy season,but the annual trends of rainfall duration and rainfall intensity are significantly different between the two stations during the typhoon rainy season;The rainfall events of the two stations in the plum rainy season have a good response to El Nino events,while the annual rainfall of El Nino/PDO-in the typhoon rainy season is abnormally small,which is prone to drought.El Nino/PDO~+annual rainfall is abnormally high and is prone to appear flood disaster.

关 键 词：降雨事件 降雨多时间尺度 极端降雨 ENSO 

分 类 号：P338[天文地球—水文科学] TV125[水利工程—水文学及水资源]