Interannual Variability of Tropical Indian Ocean Associated with Indian Ocean Dipole Events Co-occurred with El Nino

Shuangwen Sun; Jian Lan; Yi Wang

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Interannual Variability of Tropical Indian Ocean Associated with Indian Ocean Dipole Events Co-occurred with El Nino

机译：与厄尔尼诺现象同时发生的印度洋偶极子事件与热带印度洋的年际变化

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The feature and evolution mechanisms of the tropical Indian Ocean (TIO) SST anomalies during Indian Ocean Dipole (IOD) events that co-occurred with El Nino are studied using Simple Ocean Data Assimilation (SODA) data sets and an ocean general circulation model. The southeastern TIO SST anomalies are cooled by vertical heat advection, and then experience a warming process because of surface heat flux. The equatorial western TIO is warmed by surface heat flux, while horizontal and vertical heat advections are responsible for the off-equatorial warming. Then the negative surface heat flux anomalies and the negative vertical heat advection anomalies take over for the cooling of the western and eastern TIO, respectively.

机译：使用简单海洋数据同化（SODA）数据集和海洋总环流模型研究了与厄尔尼诺现象同时发生的印度洋偶极子（IOD）事件期间热带印度洋（TIO）SST异常的特征和演化机制。东南TIO SST异常通过垂直对流冷却，然后由于表面热通量而经历变暖过程。赤道西部的TIO被表面热通量加热，而水平和垂直热对流是赤道外变暖的原因。然后，负表面热通量异常和负垂直热对流异常分别接替了西部TIO和东部TIO的冷却。

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来源
《International Journal of Offshore and Polar Engineering》 |2012年第1期|p.1-6|共6页
作者
Shuangwen Sun; Jian Lan; Yi Wang;
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作者单位

Center for Ocean and Climate Research, First Institute of Oceanography State Ocean Administration, Qingdao, Shandong, China;

Physical Oceanography Laboratory, College of Physical and Environmental Oceanography Ocean University of China, Qingdao, Shandong, China;

Physical Oceanography Laboratory, College of Physical and Environmental Oceanography Ocean University of China, Qingdao, Shandong, China;

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正文语种 eng
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关键词
indian ocean dipole (IOD); el nino; SST anomalies; heat budget; numerical simulation;

机译：印度洋偶极子（IOD）;厄尔尼诺;SST异常;热预算;数值模拟;

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Interannual Variability of Tropical Indian Ocean Associated with Indian Ocean Dipole Events Co-occurred with El Nino

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