Analysis of Wetness-Dryness Encountering Based on Copula Functions Between Xijiang Main Stream and Western Coastal Rivers of Guangdong
The Guangdong Water Resources Allocation Project around the Beibu Gulf fetch water from the main stream of the Xijiang River to the western region of Guangdong Province.To alleviate the water shortage problem in the western region of Guangdong fundamentally,it is of great significance to study the runoff abundant and dry encountering of the Xijiang River main stream and the small rivers along the west coast of Guangdong Province for the optimal alloca-tion and operation of water resources in the project.Based on the date from the Xijiang main stream Control Hydrological Station-Wuzhou Station and two small rivers of western Guangdong Control Hydrological Station,namely Jianjiang Hua-zhou Station and Jiuzhou River Gangwayao Station,the Copula functions were used to establish a joint distribution func-tion for runoff at different time scales of annual,dry season,and flood season.The runoff wetness-dryness encountering was analyzed.The results indicate that there is a high degree of compensation between the main stream of the Xijiang River and the western coastal rivers of Guangdong,and the construction of the project can effectively supplement the wa-ter shortage problem in western Guangdong.
Beibu GulfCopula functionsXijiang RiverWestern Coastal Rivers of Guangdongwetness-dryness encountering
万方数据
维普
