| THE INFLUENCE OF HORIZONTALLY NON-UNIFORM HEATING UPON THE DEVELOPMENT OF STRONG CONVECTIVE MESOSCALE DISTURBANCES |
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| 引用本文： | Yu Zhihao,Chen Liangdong. THE INFLUENCE OF HORIZONTALLY NON-UNIFORM HEATING UPON THE DEVELOPMENT OF STRONG CONVECTIVE MESOSCALE DISTURBANCES[J]. 大气科学进展, 1985, 2(3): 347-358 |
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| 作者姓名： | Yu Zhihao Chen Liangdong |
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| 作者单位： | epartment of Meteorology，Nanjing University，Nanjing，Institute of Meteorology，the PLA Air Force. Nanjing |
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| 摘 要： | It is shown by observational data and synoptic analysis that the development of strong convective echo is influenced by the horizontally non-uniform heating, such as the one caused by lake-land distribution. In this paper, a simple linear cell-convection model is established using an appropriate heating field, and the instability of heating convection is theoretically studied. It is found that the heating convection development will be unstable if the heating-caused temperature gradient dT0/dy is greater than the critical value (dT0/dy)c which is approximately 0.64℃/10 km, and that the development of convective band has a preferred width of 12.5 km. It will take 25 min for the initial disturbance to increase intensity by 10 times. All these results are in rather good agreement with the squall line process in the lake-land region of Jiangsu Province on June 8, 1979.
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THE INFLUENCE OF HORIZONTALLY NON-UNIFORM HEATING UPON THE DEVELOPMENT OF STRONG CONVECTIVE MESOSCALE DISTURBANCES |
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| Yu Zhihao and Chen Liangdong. THE INFLUENCE OF HORIZONTALLY NON-UNIFORM HEATING UPON THE DEVELOPMENT OF STRONG CONVECTIVE MESOSCALE DISTURBANCES[J]. Advances in Atmospheric Sciences, 1985, 2(3): 347-358 |
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| Authors: | Yu Zhihao and Chen Liangdong |
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| Affiliation: | DepartmentofMeteorology,NanjingUniversity,Nanjing,InstituteofMeteorology,thePLAAirForce.Nanjing |
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