A note on the role of meridional wind stress anomalies and heat flux in ENSO simulations |
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| Authors: | Zhu Jieshun Sun Zhaobo Zhou Guangqing |
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| Affiliation: | 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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