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| PRELIMINARY RESEARCH OF THE PACIFIC-INDIAN OCEAN SSTA MODE AND DEFINITION OF ITS INDEX | |
| 作者姓名： | 陈琳玲 琚建华 李崇银 |
| 作者单位： | Department of Atmospheric Sciences, Yunnan University;Training Center of China Meteorological Administration;Institute of Atmospheric Physics, Chinese Academy of Science |
| 基金项目： | The research on the variation of southeast Asian monsoons and their effect on the wetness in Yunnan and neighboring areas — a national foundation project (40365001) |
| 摘 要： | Applying the empirical orthogonal function (EOF) analysis to the sea surface temperature (SST)
field of the tropical Pacific and Indian Oceans for determination of the first eigenvector field, the current work
reveals that there are significant zonal gradients of SST in all seasons of the year in the northwestern and eastern
Indian Ocean and equatorial central and eastern Pacific and western Pacific. It is also found that the variance
contribution rates of the first EOF mode of every season is more than 33%. This shows that this kind of spatial
distribution of the SST is stable. This pattern is named Pacific-Indian Oceans SSTA mode. Through careful
analysis and comparison, an index of the mode was defined. |
| 关 键 词： | Pacific Ocean Indian Ocean SSTA mode Index |
PRELIMINARY RESEARCH OF THE PACIFIC-INDIAN OCEAN SSTA MODE AND DEFINITION OF ITS INDEX |
|
| CHEN Lin-ling,JU Jian-hua and LI Chong-yin.PRELIMINARY RESEARCH OF THE PACIFIC-INDIAN OCEAN SSTA MODE AND DEFINITION OF ITS INDEX[J].Journal of Tropical Meteorology,2005,11(2):113-120. | |
| Authors: | CHEN Lin-ling JU Jian-hua and LI Chong-yin |
| Institution: | 1. Department of Atmospheric Sciences, Yunnan University, Kunming 650091 China 2. Training Center of China Meteorological Administration, Beijing 100081 China 3. Institute of Atmospheric Physics, Chinese Academy of Science, Beijing 100029 China |
| Abstract: | Applying the empirical orthogonal function (EOF) analysis to the sea surface temperature (SST) field of the tropical Pacific and Indian Oceans for determination of the first eigenvector field, the current work reveals that there are significant zonal gradients of SST in all seasons of the year in the northwestern and eastern Indian Ocean and equatorial central and eastern Pacific and western Pacific. It is also found that the variance contribution rates of the first EOF mode of every season is more than 33%. This shows that this kind of spatial distribution of the SST is stable. This pattern is named Pacific-Indian Oceans SSTA mode. Through careful analysis and comparison, an index of the mode was defined. |
| Keywords: | Pacific Ocean Indian Ocean SSTA mode Index |
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