文献类型：期刊文献

中文题名：海南主要河流径流量对ENSO的响应研究

英文题名：Study on the Response of the Runoff of Major Rivers in Hainan to ENSO

作者：黄怡虹[1];李志强[1];王世俊[2]

机构：[1]广东海洋大学电子与信息工程学院,广东湛江524088;[2]珠江水利科学研究院,广东广州510611

年份：2023

卷号：9

期号：5

起止页码：17

中文期刊名：水资源开发与管理

外文期刊名：Water Resources Development and Management

基金：广东海洋大学创新强校项目(Q18307);广东海洋大学大学生创新训练项目(CXXL2021256)。

语种：中文

中文关键词：经验模态分解;Mann-Kendall检验;径流量;气候变化;海南岛

外文关键词：empirical mode decomposition method;Mann-Kendall test;runoff;climate change;Hainan Island

中文摘要：为探究海南岛径流量对气候变化的响应,本文采用Mann-Kendall检验和经验模态分解方法,分析了海南岛南渡江、昌化江、万泉河的历史径流量观测数据和ENSO指数。结果表明,三大流域的径流量突变只有昌化江通过了显著性检验,发生2次突变,1969年径流量减少,2001年径流量增多;台风对径流量的影响较大,三大流域径流量存在明显的季节性变化,同时受干湿季转换、ENSO和太阳黑子的周期性活动的影响;径流量与ENSO指数在高频模态相关性较差,在低频模态的相关性较高,表明ENSO指数的低频模态对三大流域径流量整体变化波动趋势具有显著影响。

外文摘要：In order to explore the response of runoff in Hainan Island to climate change,this paper uses Mann-Kendall test and empirical mode decomposition method to analyze the historical runoff data of Sangdu River,Changhua River and Wanquan River in Hainan Island,as well as the ENSO index.The results show that only Changhua River passes the significance test for the abrupt change of runoff in the three river basins,with two abrupt changes occurring in 1969 and 2001,respectively,in which runoff decreased in 1969 and increased in 2001.Typhoons have a significant impact on the runoff,and there is a clear seasonal variation in the runoff of the three river basins,which is also influenced by the dry-wet season transition,ENSO and the periodic activities of sunspots.The correlation between runoff and ENSO index is poor in high-frequency mode,but high in low-frequency mode,indicating that the low-frequency mode of the ENSO index has a significant impact on the overall fluctuation trend of runoff in the three river basins.