| Diagnostic analysis of mesoscale rainstorms in the Jiang-Huai valley of China with convective vorticity vector |
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| 作者姓名： | Cui Xiaopeng Gao Shouting and Li Xiaofan |
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| 作者单位： | Cui Xiaopeng（Laboratory of Cloud-Precipitation Physics and Severe Storms (LACS), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China） ;
Gao Shouting（Laboratory of Cloud-Precipitation Physics and Severe Storms (LACS), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China） ;
Li Xiaofan（Joint Center for Satellite Data Assimilation and NOAA/NESDIS/Center for Satellite Applications and Research, Camp Springs, Maryland, USA） ; |
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| 摘 要： |
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Diagnostic analysis of mesoscale rainstorms in the Jiang-Huai valley of China with convective vorticity vector |
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| Cui Xiaopeng,Gao Shouting and Li Xiaofan.Diagnostic analysis of mesoscale rainstorms in the Jiang-Huai valley of China with convective vorticity vector[J].Progress in Natural Science,2007,17(5):559-568. |
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| Authors: | Cui Xiaopeng Gao Shouting and Li Xiaofan |
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| Institution: | 1. Laboratory of Cloud-Precipitation Physics and Severe Storms (LACS), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; 2. Joint Center for Satellite Data Assimilation and NOAA/NESDIS/Center for Satellite Applications and Research, Camp Springs, Maryland, USA |
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| Abstract: | By the vector product of absolute vorticity vectors and equivalent potential temperature gradients, a new vector, convective vorticity vector (CVV) is readdressed after Gao et al., and is applied to the study of the development and movement of mesoscale rainstorms in the Jiang-Huai valley of China by using high-resolution simulation data with PSU/NCAR MM5 briefly. The results show that the CVV, especially its vertical component which is closely related to interactions between vertical secondary circulations and horizontal equivalent potential temperature gradients, may be a good tracer and diagnostic tool in the study of mesoscale rainstorms in the Jiang-Huai valley of China. And the main physical processes responsible for the variations of the vertical component of the CVV are discussed briefly based on its tendency equation proposed in this article. |
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| Keywords: | convective vorticity vector mesoscale rainstorms tendency equations |
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