Spatial teleconnection pattern between Indian Ocean Dipole and the southern high-latitude sea level pressure field

Sea level pressure (SLP) anomalies over the southern high latitudes associated with the Indian Ocean Dipole Mode(IOD) are investigated. Partial correlation and composite analysis depict, for the first time, the seasonal spatial variability in the relationship of SLP field in Southern Ocean with IOD. Results suggest that the IOD signal exists in the southern high latitudes and it is enhanced in boreal autumn, an active season of IOD. On interannual to subdecadal timescales, the spatial teleconnection pattern exhibits a wavenumber-3 pattern around the circumpolar Southern Ocean and the lead-lag correlation analysis shows that there are about 3 months of SLP anomalies in southern high latitudes lagging IOD, which indicates that the response time is almost instantaneous.

作 者： LIU Na CHEN Hongxia MIN Jinzhong HUA Feng BIAN Hongcun   作者單位： LIU Na(Jiangsu Key Laboratory of Meteorological Disaster, Nanjing University of Information Science & Technology, Nanjing 210044, China;Key Laboratory of Marine Science and Numerical Modeling, State Oceanic Administration, Qingdao 266061, China;First Institute of Oceanography, Qingdao 266061, China)

CHEN Hongxia,HUA Feng(Key Laboratory of Marine Science and Numerical Modeling, State Oceanic Administration, Qingdao 266061, China;First Institute of Oceanography, Qingdao 266061, China)

MIN Jinzhong(Jiangsu Key Laboratory of Meteorological Disaster, Nanjing University of Information Science & Technology, Nanjing 210044, China)

BIAN Hongcun(First Institute of Oceanography, Qingdao 266061, China) 

刊 名： 自然科學(xué)進(jìn)展（英文版）  SCI 英文刊名： PROGRESS IN NATURAL SCIENCE  年，卷(期)： 2005 15(12)  分類號： O4  關(guān)鍵詞： IOD   SLP   teleconnection   southern high latitudes  

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