黄河上游径流与海温关系及大气环流特征解析  

Research on Relationship Between Runoff of Upper Reaches of the Yellow River and Sea Surface Temperature and Atmospheric Circulation Characteristics

作　　者：王丹 潘红忠 白钰[2] WANG Dan;PAN Hongzhong;BAI Yu(College of Resources and Environment,Yangtze University,Wuhan 430100,China;Huanghe Hydropower Development Co.,Ltd.,Xining 810008,China)

机构地区：[1]长江大学资源与环境学院,湖北武汉430100 [2]黄河上游水电开发有限责任公司,青海西宁810008

出　　处：《人民珠江》2021年第1期13-19,共7页Pearl River

基　　金：基于SST多极耦合的黄河上游中长期径流预报关键技术研究(20181468)。

摘　　要：任何一个流域的降水都是全球大气与水循环的一部分,大气中的水分大部分来自海水蒸发,水气量的多少与海洋表面温度直接相关,海洋表面温度是水循环的主要驱动因子。海水蒸发进入大气、大气中的水分降落在某个流域并形成径流是一个非常复杂的过程。为增长径流预报的预见期,海温与径流的遥相关关系日益引起人们的关注。通过利用自然正交函数分解法以及相关分析,建立黄河上游径流与对应的海洋表面温度之间的相关关系,然后从大气环流角度对其形成机理加以验证分析,结果证明海温变化与黄河上游流域汛期径流量关系密切。Precipitation in any watershed is a part of the global atmosphere and water cycle.Most of the water in the atmosphere comes from seawater evaporation.The amount of water vapor is directly related to the sea surface temperature(SST),which is the main driving factor of water cycle.It is a very complicated process that seawater evaporates into the atmosphere,and the water in the atmosphere falls on a certain watershed and forms runoff.In order to increase the forecast period of runoff,the teleconnection relationship between SST and runoff has attracted more and more attention.By using the natural orthogonal function decomposition method and correlation analysis,this paper establishes the correlation between the runoff in the upper reaches of the Yellow River and the corresponding sea surface temperature,and then verifies and analyzes the formation mechanism from the perspective of atmospheric circulation.The results show that the change of sea surface temperature is closely related to the runoff of upper reaches of Yellow River in flood season.

关 键 词：海温 大气环流 黄河上游流域 

分 类 号：P339[天文地球—水文科学]