| Southern high latitude climate anomalies associated with the Indian Ocean dipole mode |
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| 作者姓名： | 刘娜 贾贞 陈红霞 华锋 |
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| 作者单位： | Ocean University of China Qingdao 266003 China，Laboratory of Marine Science and Numerical Modeling First Institute of Oceanography SOA Qingdao 266061 China，Laboratory of Marine Science and Numerical Modeling First Institute of Oceanography SOAQingdao 266061 China，Ocean University of China Qingdao 266003 China，Laboratory of Marine Science and Numerical Modeling First Institute of Oceanography SOA Qingdao 266061 China，Laboratory of Marine Science and Numerical Modeling First Institute of Oceanography SOA Qingdao 266061 China，Ocean University of China Qingdao 266003 China |
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| 基金项目： | Supported by NSFC (Nos. 40506011, 40231013). |
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| 摘 要： | 1 INTRODUCTION In southern high latitudes, recent observations have shown a standing mode of ACW (Antarctic Circumpolar Wave) with eastward propagation across the Southern Ocean of the Antarctic in co- varying SST (sea surface temperature) and SLP (sea le…
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| 关 键 词： | 偶极 气候模式 印度洋 地理纬度 |
| 收稿时间： | 2004-10-18 |
| 修稿时间： | 2005-05-28 |
Southern high latitude climate anomalies associated with the Indian Ocean dipole mode |
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| Liu Na,Jia Zhen,Chen Hongxia,Hua Feng,Li Yunfang.Southern high latitude climate anomalies associated with the Indian Ocean dipole mode[J].Chinese Journal of Oceanology and Limnology,2006,24(2):125-128. |
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| Authors: | Liu Na Jia Zhen Chen Hongxia Hua Feng Li Yunfang |
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| Institution: | (1) Ocean University of China, 266003 Qingdao, China;(2) Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, SOA, 266061 Qingdao, China |
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| Abstract: | Using a 23-year database consisting of sea level pressure, surface air temperature and sea surface temperature, the authors studied southern high latitude climate anomalies associated with IOD (Indian Ocean Dipole). Correlation analysis of the spatial variability regarding monthly sea level pressure, surface air tempera- ture, and sea surface temperature anomalies with IOD index suggests that IOD signal exists in southern high latitudes. The correlation fields exhibit a wavenumber-3 pattern around the circumpolar Southern Ocean. Lead-lag correlation analysis on the strongest correlation areas with IOD index shows that IOD in the tropical Indian Ocean responses to the southern high latitude climate almost instantaneously. It is proposed in the present paper that this connection is realized through atmospheric propagation rather than through oceanic one. |
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| Keywords: | southern high latitudes climate anomaly Indian Ocean dipole mode |
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