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| Spatial teleconnection pattern between Indian Ocean Dipole and the southern high-latitude sea level pressure field | |
| 作者姓名： | LIU N CHEN Hongxi MIN Jinzhong HUA Feng BIAN Hongcun |
| 作者单位： | 1. Jiangsu Key Laboratory of Meteorological Disaster, Nanjing University of Information Science & Technology, Nanjing 210044, China; 2. Key Laboratory of Marine Science and Numerical Modeling, State Oceanic Administration, Qingdao 266061, China; 3. First Institute of Oceanography, Qingdao 266061, China |
| 基金项目： | 中国科学院资助项目，Important and Basic Study of Jiangsu School |
| 摘 要： | 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. |
| 关 键 词： | IOD SLP teleconnection southern high latitudes. |
Spatial teleconnection pattern between Indian Ocean Dipole and the southern high-latitude sea level pressure field |
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| LIU N,CHEN Hongxi,MIN Jinzhong,HUA Feng,BIAN Hongcun.Spatial teleconnection pattern between Indian Ocean Dipole and the southern high-latitude sea level pressure field[J].Progress in Natural Science,2005,15(12):1143-1147. | |
| Authors: | LIU Na CHEN Hongxia MIN Jinzhong HUA Feng BIAN Hongcun |
| Institution: | 1. 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 2. Key Laboratory of Marine Science and Numerical Modeling, State Oceanic Administration, Qingdao 266061, China;First Institute of Oceanography, Qingdao 266061, China 3. Jiangsu Key Laboratory of Meteorological Disaster, Nanjing University of Information Science & Technology, Nanjing 210044, China 4. First Institute of Oceanography, Qingdao 266061, China |
| Abstract: | 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. |
| Keywords: | IOD SLP teleconnection southern high latitudes |
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