Southern high latitude climate anomalies associated with the Indian Ocean dipole mode

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Southern high latitude climate anomalies associated with the Indian Ocean dipole mode

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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 temperature, 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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《中国海洋湖沼学报（英文版）》 |2006年第2期|125-128|共4页
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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, SOA, Qingdao 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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正文语种 chi
中图分类地球物理学;
关键词
southern high latitudes; climate anomaly; Indian Ocean dipole mode;

机译：南部高纬度;气候异常;印度洋偶极子模式;

Southern high latitude climate anomalies associated with the Indian Ocean dipole mode

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