Contrasting Impacts of Two-type El Nino over the Western North Pacific during Boreal Autumn

被引:135
作者
Zhang, Wenjun [1 ,2 ,3 ]
Jin, Fei-Fei [3 ]
Li, Jianping [4 ]
Ren, Hong-Li [3 ]
机构
[1] Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Nanjing 210044, Jiangsu, Peoples R China
[2] Nanjing Univ Informat Sci & Technol, Minist Educ, Key Lab Meteorol Disaster, Nanjing 210044, Jiangsu, Peoples R China
[3] Univ Hawaii, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA
[4] Chinese Acad Sci, Inst Atmospher Phys, LASG, Beijing, Peoples R China
基金
美国国家科学基金会;
关键词
ENSO; TEMPERATURE; ANOMALIES; PATTERNS; MONSOON;
D O I
10.2151/jmsj.2011-510
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
This work contrasts the climatic impacts of so-called warm-pool (WP) and cold-tongue (CT) El Nino on the atmospheric circulation over the western North Pacific (WNP). It is found that the anomalous atmospheric circulation over the WNP is nearly opposite in response to these two types of El Nino events in developing autumn. A weak anomalous anticyclone appears o'er the WNP during CT El Nino, whereas a weak anomalous cyclone emerges in the same region during WP El Nino. These nearly opposite autumn responses of atmospheric circulation have a significant impact on East Asian climate, aid southern China autumn rainfall in particular, although this contrast tends to diminish as El Nino events enter their mature phase.
引用
收藏
页码:563 / 569
页数:7
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