Enhanced rainfall in North China in July 2021:Role of the North Pacific SST gradientOA
2021年7月,华北地区的降水量突破1980年以来的极值,这与太平洋海温异常的经向梯度相吻合.研究表明,西北太平洋正海温异常与热带中太平洋负海温异常之间的梯度是2021年7月华北地区降水异常偏多的主要原因,该梯度使得西北太平洋反气旋及其南部的气旋北移,汇合的偏东风将大量水汽从海洋输送到华北地区,使得华北地区降水偏多.同时,太平洋海温异常的经向梯度可能在对流层低层触发异常的反向哈德利环流,伴随着南风异常,使得季风环流增强,雨带偏北.
Zhaoyang Du;Lian-Tong Zhou;Kui Liu;Xiaoxue Yin;
Center for Monsoon System Research,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,China College of Earth Sciences,University of Chinese Academy of Sciences,Beijing,China Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction,Yinchuan,China Ningxia Meteorological Observatory,Yinchuan,ChinaCenter for Monsoon System Research,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,ChinaCenter for Monsoon System Research,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,China College of Geography and Tourism,Hengyang Normal University,Hengyang,ChinaCenter for Monsoon System Research,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,China Department of Navigation,China Coast Guard Academy,Ningbo,China
大气科学
降水华北地区海温径向梯度
《Atmospheric and Oceanic Science Letters》 2024 (002)
P.39-44 / 6
funded by the National Natural Science Foundation of China[grant number 42105063];the Youth Training Project of the Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions[project number CAMT-202302];a funded project of Hengyang Normal University[project number 2022QD11].
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