| The Impact Cooling of the Storm-Induced SST on Hurricane Intensity |
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| 作者姓名： | Tong ZHU Da-Lin ZHANG |
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| 作者单位： | [1]CIRA/CSU at NOAA/NESDIS/ORA, Camp Springs, MD 20746, USA [2]Department of Meteorology, University of Maryland, College Park, MD 20742, USA |
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| 基金项目： | Acknowledgments. The authors wish to thank Dr. Fuzhong Weng for his interest and support of this research. The work was supported by NASA Grants NAG-510746, NSF Grants ATM-0342363, and 0NR Grant N000140210402, and CIRA/Colorado State University. |
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| 摘 要： | The effects of storm-induced sea surface temperature （SST） cooling on hurricane intensity are investigated using a 5-day cloud-resolving simulation of Hurricane Bonnie （1998）. Two sensitivity simulations are performed in which the storm-induced cooling is either ignored or shifted close to the modeled storm track. Results show marked sensitivity of the model-simulated storm intensity to the magnitude and relative position with respect to the hurricane track. It is shown that incorporation of the storm-induced cooling, with an average value of 1.3℃, causes a 25-hPa weakening of the hurricane, which is about 20 hPa per 1℃ change in SST. Shifting the SST cooling close to the storm track generates the weakest storm, accounting for about 47% reduction in the storm intensity. It is found that the storm intensity changes are well correlated with the air-sea temperature difference. The results have important implications for the use of coupled hurricane-ocean models for numerical prediction of tropical cyclones.
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| 关 键 词： | 飓风 海洋表面温度 数值模型 强度 热带气象 SST |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2005-07-25 |
The Impact Cooling of the Storm-Induced SST on Hurricane Intensity |
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| Tong ZHU Da-Lin ZHANG.The Impact Cooling of the Storm-Induced SST on Hurricane Intensity[J].Advances in Atmospheric Sciences,2006,23(1):14-22. |
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| Authors: | Tong;ZHU;Da-Lin;ZHANG |
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| Abstract: | |
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| Keywords: | SST feedback hurricane intensity numerical modeling |
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