暴雨过程环境涡散场能量转换特征

汪钟兴. 暴雨过程环境涡散场能量转换特征[J]. 大气科学, 1993, 17(2): 185-191. DOI: 10.3878/j.issn.1006-9895.1993.02.07

引用本文:

汪钟兴. 暴雨过程环境涡散场能量转换特征[J]. 大气科学, 1993, 17(2): 185-191. DOI: 10.3878/j.issn.1006-9895.1993.02.07

Wang Zhongxing. The Characteristics of Conversion between Kinetic Energies of Divergent Winds and Non-Divergent Winds during Heavy Rain Period[J]. Chinese Journal of Atmospheric Sciences, 1993, 17(2): 185-191. DOI: 10.3878/j.issn.1006-9895.1993.02.07

Citation:

Wang Zhongxing. The Characteristics of Conversion between Kinetic Energies of Divergent Winds and Non-Divergent Winds during Heavy Rain Period[J]. Chinese Journal of Atmospheric Sciences, 1993, 17(2): 185-191. DOI: 10.3878/j.issn.1006-9895.1993.02.07

暴雨过程环境涡散场能量转换特征

汪钟兴

The Characteristics of Conversion between Kinetic Energies of Divergent Winds and Non-Divergent Winds during Heavy Rain Period

Wang Zhongxing

摘要: 本文计算和讨论4个不同类型暴雨过程各层次时空平均涡散场能量转换函数.指出其基本特征为:(1)对流层下层为最大正转换层,其转换强度和方向受C1+C2项制约,当暴雨发展时,能量转换急剧增长;而对流层上层的负转换强度则受控于C3项.但就对流层整层而言,能量转换函数C(K_χ,K_Ψ)均为正值,即势流动能向涡流动能转换,促使暴雨系统的维持和发展.(2)能量转换函数的水平分布,在对流层下层其正转换区与过程降水区较为一致,而在对流层上层的负转换区则位于过程降水区的北侧.

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