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《大气科学进展(英文版)》 2013-06
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Two Types of El Nio-related Southern Oscillation and Their Diferent Impacts on Global Land Precipitation

XU Kang;ZHU Congwen;HE Jinhai;Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology;Institute of Climate Systems, Chinese Academy of Meteorological Sciences;State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences;  
The contrast between the eastern and central Pacific(EPand CP-) El Nio is observed in the diferent responses of zonal and vertical circulation in the tropics. To measure the diferent responses of the atmospheric circulation to the two types of El Nio, an eastern and a central Pacific southern oscillation index(EPand CP-SOI) are defined based on the air–sea coupled relationship between eddy sea level pressure and sea surface temperature. Analyses suggest that while the EP-SOI exhibits variability on an interannual(2– 7-yr) time scale, decadal(10–15-yr) variations in the CP-SOI are more dominant; both are strongly coupled with their respective EPand CP-El Nio patterns. Composite analysis suggests that, during EP-ENSO, the Walker circulation exhibits a dipole structure in the lower-level(850 hPa) and upper-level(200 hPa) velocity potential anomalies and exhibits a signal cell over the Pacific. In the case of CP-ENSO, however, the Walker circulation shows a tripole structure and exhibits double cells over the Pacific. In addition, the two types of ENSO events show opposite impacts on global land precipitation in the boreal winter and spring seasons. For example, seasonal precipitation across mainland China exhibits an opposite relationship with the EPand CP-ENSO during winter and spring, but the rainfall over the lower reaches of the Yangtze River and South China shows an opposite relationship during the rest of the seasons. Therefore, the diferent relationships between rainfall and EPand CP-ENSO should be carefully considered when predicting seasonal rainfall in the East Asian monsoon regions.
【Fund】: jointly supported by the National Natural Science Foundation of China(Grant No.41221064);; the 973 Program of China(Grant No.2012CB417403);; the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA05090408);; the key program of the Chinese Academy of Meteorological Science(Grant No.2010Z003 and 2013Z002);; the Research and Innovation Project for College Graduates of Jiangsu Province(Grant No.CXLX11 0618)
【CateGory Index】: P426.615
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 XU Kang 1,2,ZHU CongWen 2* & HE JinHai 1 1 Key Laboratory of Meteorological Disaster of Ministry of Education,Nanjing University of Information Science and Technology,Nanjing 210044,China;2 Institute of Climate Systems,Chinese Academy of Meteorological Sciences,Beijing 100081,China;Linkage between the dominant modes in Pacific subsurface ocean temperature and the two type ENSO events[J];科学通报(英文版);2012-26
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 HUANG Ping and HUANG Rong-Hui Center for Monsoon System Research (CMSR),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100190,China;Relationship between the Modes of Winter Tropical Pacific SST Anomalies and the Intraseasonal Variations of the Following Summer Rainfall Anomalies in China[J];大气和海洋科学快报(英文版);2009-05
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3 SU Tong-Hua1,2 and XUE Feng1 1 International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, Bei-jing 100029, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China;Two Northward Jumps of the Summertime Western Pacific Subtropical High and Their Associations with the Tropical SST Anomalies[J];大气和海洋科学快报(英文版);2011-02
4 ZHENG Fei 1,WAN Li-Ying 2,and WANG Hui 3 1 International Center for Climate and Environment Science (ICCES),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China 2 Key Laboratory of Research on Marine Hazards Forecasting,National Marine Environmental Forecasting Center,Beijing 100081,China 3 National Meteorological Center,Beijing 100081,China;Distinguished Effects of Interannual Salinity Variability on the Development of the Central-Pacific El Nio Events[J];大气和海洋科学快报(英文版);2012-02
5 GU Wei1,2,LI Chongyin1,3,WANG Xin1,ZHOU Wen4,and LI Weijing2 1State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029 2National Climate Center,China Meteorological Administration,Beijing 100081 3Meteorological College,PLA University of Science and Technology,Nanjing 211101 4 CityU-IAP Laboratory for Atmospheric Sciences,Department of Physics & Materials Science,City University of Hong Kong,Hong Kong;Linkage Between Mei-yu Precipitation and North Atlantic SST on the Decadal Timescale[J];大气科学进展(英文版);2009-01
6 BAO Ming1,2 and HAN Rongqing3 1Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100190 2School of Atmospheric Sciences, Nanjing University, Nanjing 210093 3National Climate Center, Beijing 100081;Delayed Impacts of the El Nio Episodes in the Central Pacific on the Summertime Climate Anomalies of Eastern China in 2003 and 2007[J];大气科学进展(英文版);2009-03
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China Proceedings of conference Full-text Database 1 Hits
1 Jingjing Dou(College of Atmospheric Science,Nan jing University of Information Science & Technology,Nanjing,210044);The difference between impacts of El Nino Modoki and El Nino on atmosphere circulation[A];[C];2011
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