| 2009/2010年El Ni(n)o事件变化特征及其机理 |
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| 引用本文： | 陈锦年,王宏娜,王东晓,左涛. 2009/2010年El Ni(n)o事件变化特征及其机理[J]. 海洋学报, 2011, 33(6): 29-38 |
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| 作者姓名： | 陈锦年 王宏娜 王东晓 左涛 |
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| 作者单位： | 1.中国科学院 海洋研究所,山东 青岛 266071;中国科学院 海洋环流与波动重点实验室,山东 青岛 266071;中国气象局 广州热带海洋气象研究所,广东 广州 510080 |
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| 基金项目： | 国家自然科学基金(41076010);"973"项目(2012CB417402);中国科学院知识创新工程重要方向项目(KZCX2-YW-214);中国科学院南海海洋动力重点开放实验室(LED0903)资助。 |
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| 摘 要： | 应用TAO (Tropical Atmosphere Ocean project)热带太平洋实测海温和风场资料,分析研究了发生在2009/2010年的El Ni(n)o事件的变化特征,讨论了此次El Ni(n)o事件发生过程中,赤道东、西太平洋次表层异常海温的变化特征及其传播过程,特别是对赤道太平洋次表层异常海温变化的...
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| 关 键 词： | TAO实测资料 西太平洋暖池 CPP El Ni(n)o |
| 收稿时间： | 2009-12-25 |
| 修稿时间： | 2010-11-28 |
Variational characteristics analyses of the El Niño event in 2009/2010 |
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| CHEN Jin-nian,WANG Hong-n,WANG Dong-xiao and ZUO Tao. Variational characteristics analyses of the El Niño event in 2009/2010[J]. Acta Oceanologica Sinica (in Chinese), 2011, 33(6): 29-38 |
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| Authors: | CHEN Jin-nian WANG Hong-n WANG Dong-xiao ZUO Tao |
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| Affiliation: | Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China;Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Sciences, Qingdao 266071,China;Institute of Tropical and Oceanic Meteorology, China Meteorological Administration, Guangzhou, 510080,China;Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China;Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Sciences, Qingdao 266071,China;LED, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China;Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China |
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| Abstract: | The variability of one warming event which occurred on the equatorial Pacific Ocean in the summer 2009/2010 was analyzed using the temperature and wind data from tropical atmosphere ocean (TAO) project dataset. The variation and propagation of anomalous subsurface ocean temperature in equatorial Pacific were discussed in the process of El Niño event. The results indicated that there were two different mechanisms in eastern equatorial Pacific warming process in the summer 2009/2010. One was the propagation of the anomalous subsurface ocean temperature along the thermocline from west to east Pacific and the local warming in eastern Pacific. The other was the increase of west wind in the western Pacific warm pool (WPWP) made the wind convergence. This convergence conduced to the warm water downwelling from surface to subsurface. Then the subsurface water was warm again and eastward propagated. These results indicated that the anomalous temperature from the subsurface signal cycle in the tropical Pacific, the local warming in the eastern equatorial Pacific due to the decrease of wind and the atmosphere forcing in WPWP were the main reasons which induced the warmer event in 2009/2010. |
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| Keywords: | TAO real data WPWP CPP El Niñ o |
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