| 梅雨暴雨的涡度平衡与积云对流 |
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| 引用本文： | 陈受钧,郑良杰.梅雨暴雨的涡度平衡与积云对流[J].气象学报,1979,37(1):8-13. |
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| 作者姓名： | 陈受钧 郑良杰 |
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| 作者单位： | 北京大学地球物理系
(陈受钧)，北京大学地球物理系(郑良杰) |
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| 摘 要： | 应用天气尺度运动,讨论梅雨期间暴雨区内的涡度平衡。在对流层下层有一个涡度的积累,对流层上层有涡度的亏损。积云对流在涡度平衡中起重要作用。给出了一个基于一维定常积云模式的对流涡度参数化方案,并和天气尺度运动的计算结果作了比较。
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| 收稿时间： | 1978/7/12 0:00:00 |
THE VORTICITY BUDGET IN THE HEAVY-PRECIPITATIONREGION AND CUMULUS CONVECTION DURINGTHE MEI-YU SEASON |
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| Chen Shou-jun and Zheng Liang-jie.THE VORTICITY BUDGET IN THE HEAVY-PRECIPITATIONREGION AND CUMULUS CONVECTION DURINGTHE MEI-YU SEASON[J].Acta Meteorologica Sinica,1979,37(1):8-13. |
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| Authors: | Chen Shou-jun and Zheng Liang-jie |
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| Institution: | Department of Geophysics, Peking University;Department of Geophysics, Peking University |
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| Abstract: | Synoptic-scale variables are used to determine the vorticity budget in the heavy precipitation region during the Mei-Yu season. In this region there exists a norticity accumulation in the lower half of the troposphere and a sink in the upper-troposphere. This result implies that connective-scale motion exert a significant.effect on the vorticity budget and suggests that in the modelling of the summer precipitation weather systems, attention must be given to parameterizing connective. effects in the momentum equation as well as in the thermodynamic energy and water mass continuity equations. A vorticity parameterization scheme for cumulus convection is derived by using a one dimensional steady cumulus model. The result is compared with that determined by synoptic-scale variables. |
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