A teleconnection pattern of upper-tropospheric circulation anomalies over the Eurasian continent associated with the interannual variability of atmospheric convection over the tropical western North Pacific in July

被引：0
|
作者：
Peishan Chen [1 ,2 ]
Riyu Lu [1 ,2 ]
机构：
[1] State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics,Institute of Atmospheric Physics,Chinese Academy of Sciences
[2] College of Earth and Planetary Sciences,University of Chinese Academy of Sciences
来源：
Atmospheric and Oceanic Science Letters | 2024年 / 17卷 / 03期
基金：
中国国家自然科学基金;
关键词：
遥相关; 大气对流; 西北太平洋; 年际变化;
D O I：
暂无
中图分类号：
P461 [气候的形成和影响气候的因素];
学科分类号：
摘要：
热带西北太平洋大气对流的年际变化对东亚夏季气候有着显著影响,而且受到前冬ENSO的影响.然而,还有相当多的西北太平洋对流年际变化不能由前冬ENSO解释.本文表明,7月西北太平洋对流受到欧亚大陆对流层上层遥相关型的显著影响,且这一影响与前冬ENSO的影响程度相当.该遥相关型表现为位于欧洲的气旋式环流异常,中亚的反气旋式环流异常和东亚带状延伸的气旋式环流异常,并表现为7月对流层上层环流的第一主模态.基于本文的结果并结合前人的研究,作者认为这一遥相关型能通过亚洲急流出口区附近的罗斯贝波破碎引起西北太平洋对流异常.
引用
收藏
页码：22 / 26
页数：5
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