| Events of decadal thermocline variations in the South Pacific Ocean |
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| 作者姓名： | 姜华 吴德星 万修全 |
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| 作者单位： | Institute of Climate System Chinese Academy of Meteorological Sciences Beijing 100081，China，Institute of Physical Oceanography Ocean University of China Qingdao 266003 China，Institute of Physical Oceanography Ocean University of China Qingdao 266003 China |
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| 基金项目： | Supported by The National Natural Science Foundation of China (Nos. 40406004, 40490263 and 40306002) and by the University Doctorate Foundation (No.20030423004). |
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| 摘 要： | 1 INTRODUCTION It has been suggested that interior thermal anomalies that subduct into the subtropics of the North Pacific may propagate to the equatorial region of the Pacific (Russell, 1994; Deser et al., 1996; Gu and Philander, 1997; Huang and Huang an…
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| 关 键 词： | 太平洋 温跃层 变异性 温度 热量 |
| 收稿时间： | 2004-03-15 |
| 修稿时间： | 2004-08-26 |
Events of decadal thermocline variations in the South Pacific Ocean |
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| Jiang Hua,Wu Dexing,Wan Xiuquan.Events of decadal thermocline variations in the South Pacific Ocean[J].Chinese Journal of Oceanology and Limnology,2006,24(2):111-117. |
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| Authors: | Jiang Hua Wu Dexing Wan Xiuquan |
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| Institution: | (1) Institute of Climate System, Chinese Academy of Meteorological Sciences, 100081 Beijing, China;(2) Institute of Physical Oceanography, Ocean University of China, 266003 Qingdao, China |
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| Abstract: | The SODA data generated from a numerical model with data assimilation are used to study the decadal thermal anomalies in the
thermocline of the South Pacific. Three notable events of decadal thermoclinc variations are found. First, two major warm
subduction events originated from outcrop regions centered at 30°S, 150°W in the South Pacific Ocean occurred between 1960s
and 1980s propagating toward the western Tropics and at 30°S, 90°W in the late 1970s propagating directly toward the eastern
Tropics. Second, a special westward warm event originating from the eastern boundary around 15°S occurred in the early 1980s.
Thirdly, a distinct zonal location transition of the positive temperature anomalies near 10°S took place in the late 1970s.
The results suggest that the warm events in the subtropical South Pacific region are important to the decadal variability
of the western tropical Pacific before the late 1970s and to the eastern tropical Pacific after the late 1970s.
Supported by the National Natural Science Foundation of China (Nos. 40406004, 40490263 and 40306002) and by the University
Doctorate Foundation (No.20030423004). |
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| Keywords: | decadal variability the South Pacific Ocean |
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