SUBTROPICAL HIGH, LATENT HEATING BY CONVECTION AND ASSOCIATION WITH DISSIPATION AND MAINTENANCE OF SOUTH CHINA SEA TYPHOONSI |
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Authors: | Ding Zhiying Shen Tongli and Ding Yihui |
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Institution: | Nanjing Institute of Meteorology Nanjing 210044;Nanjing Institute of Meteorology Nanjing 210044;National Climate Center. Beijing, Beijing 100081 |
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Abstract: | Numerical modeling and experiments are conducted for the South China Sea typhoons Helen (1995) and Willie (1996) with an auto-adaptive mesh model. It is shown that durating the stage of dissipation the typhoons are mainly related with the subtropical high rather than the topography. The high is sensitive to the intensity change of the typhoon so that the former weakens as the latter strengthens and vice versa. Maintaining the typhoon as a main factor, the release of latent heat is in reversed proportion with the subtropical high in terms of the intensity. It is found that the storm tends to be maintained if it moves close to the westerly trough after landfall. |
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Keywords: | South China Sea typhoon auto-adaptive mesh subtropical high westerly trough release of latent heat by cumulus convection |
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