| A Note on the Role of Meridional Wind Stress Anomalies and Heat Flux in ENSO Simulations |
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| 作者姓名： | 朱杰顺 孙照渤 周广庆 |
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| 作者单位： | [1]School of Atmospheric Science, Nanjing University of Information Science ＆ Technology, Nanjing 210044 [2]Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，the Chinese Academy of Sciences International Partnership Creative Group;entitled，国家自然科学基金 |
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| 摘 要： | Four comparative experiments and some supplementary experiments were conducted to examine the role of meridional wind stress anomalies and heat flux variability in ENSO simulations by using a high-resolution Ocean General Circulation Model （OGCM）. The results indicate that changes in the direction and magnitude of meridional wind stress anomalies have little influence on ENSO simulations until meridional wind stress anomalies are unrealistically enlarged by a factor of 5.0. However, evidence of an impact on ENSO simulations due to heat flux variability was found. The simulated Nino-3 index without the effect of heat flux anomalies tended to be around 1.0° lower than the observed, as well as the control run, during the peak months of ENSO events.
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| 关 键 词： | 海洋大气环流模型 厄尔尼诺现象 欧洲南部 风压 热通量 |
| 收稿时间： | 17 July 2006 |
| 修稿时间： | 2006-07-172006-12-07 |
A note on the role of meridional wind stress anomalies and heat flux in ENSO simulations |
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| Zhu?Jieshun,Sun?Zhaobo,Zhou?Guangqing.A Note on the Role of Meridional Wind Stress Anomalies and Heat Flux in ENSO Simulations[J].Advances in Atmospheric Sciences,2007,24(4):729-738. |
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| Authors: | Zhu Jieshun Sun Zhaobo Zhou Guangqing |
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| Institution: | School of Atmospheric Science, Nanjing University of Information Science & Technology,
Nanjing 210044;
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,School of Atmospheric Science, Nanjing University of Information Science & Technology,
Nanjing 210044,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | Four comparative experiments and some supplementary experiments were conducted to examine the role of meridional wind stress anomalies and heat flux variability in ENSO simulations by using a highresolution Ocean General Circulation Model (OGCM). The results indicate that changes in the direction and magnitude of meridional wind stress anomalies have little influence on ENSO simulations until meridional wind stress anomalies are unrealistically enlarged by a factor of 5.0. However, evidence of an impact on ENSO simulations due to heat flux variability was found. The simulated Ni(n)o-3 index without the effect of heat flux anomalies tended to be around 1.0° lower than the observed, as well as the control run, during the peak months of ENSO events. |
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| Keywords: | ENSO simulation meridional wind stress heat flux OGCM |
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