Optimal heat source for the interannual variability of the western North Pacific summer monsoon

被引：0

作者：

HU Kaiming ^{[1
]}

LONG Shang-Min ^{[2
,3
]}

机构：

[1] State key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics and Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences

[2] State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences

[3] College of Oceanography, Hohai University

来源：

Atmospheric and Oceanic Science Letters | 2020年 / 13卷 / 01期

基金：

中国国家自然科学基金;

关键词：

西北太平洋夏季风; 热源; 线性模式;

D O I：

暂无

中图分类号：

P425.42 [];

学科分类号：

0706 ; 070601 ;

摘要：

西北太平洋夏季风是热带影响东亚气候的桥梁,具有很强的年际变率。西北太平洋夏季风异常能造成东亚夏季旱涝和高低温灾害,因此研究它的年际变率驱动因子具有重要意义。本文利用一个格林函数方法定量的评估了热带各个格点热源对西北太平洋夏季风的贡献。具体为将南北55纬度之间的区域划分成132个小格子,在每个格子加上一个椭圆形理想热源;接着利用一个线性理论大气环流模式计算每个热源对西北太平洋夏季风的贡献。研究表明导致西北太平洋夏季风增强的最理想加热场结构是位于热带印度洋和中纬度东亚地区上空的冷源和位于副热带西北太平洋地区的热源。

引用

页码：41 / 47

页数：7

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