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	Influence of electrification on microphysical and dynamical processes in a numerically simulated thunderstorm
	Sun, AP; Chun, HY; Baik, JJ; Yan, MH
刊名	JOURNAL OF APPLIED METEOROLOGY
	2002-11-01
卷号	41期号:11页码:1112-1127
ISSN号	0894-8763
通讯作者	Chun, HY()
英文摘要	A new three-dimensional dynamics and electrification coupled model is developed to investigate the influence of electrification on microphysical and dynamical processes in thunderstorms. This model includes a four-class ice microphysics scheme, five electrification mechanisms, and lightning parameterization. Comparisons between model results and observations reveal that the dynamics and electrification coupled model is capable of reproducing many of the observed characteristics of the thunderstorm in dynamical, microphysical, and electrical aspects. The effects of electrification on microphysical and dynamical processes are examined by performing two numerical experiments, one with electrification processes and the other without them. Results show that when electrification processes are included the mass transfer among hydrometeors in microphysical processes, especially collection and coalescence processes, changes considerably as a result of significant modification of the terminal velocities of large precipitation particles. The change of mass transfer in microphysical processes affects cloud buoyancy by changing the amount and distribution of hydrometeors, and latent-heat release in the middle region of the thunderstorm increases. That is, convection strengthens by including electrification processes. The amount of solid precipitation and the diameter of solid precipitation particles at the surface increase because a stronger updraft sustains large precipitation particles and prevents them from falling out of the cloud earlier.
收录类别	SCI
WOS关键词	CHARGE ; MODEL ; STORM
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER METEOROLOGICAL SOC
WOS记录号	WOS:000178884900005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556817
专题	寒区旱区环境与工程研究所
通讯作者	Chun, HY
作者单位	1.Yonsei Univ, Dept Atmospher Sci, Seoul 120749, South Korea 2.Kwangju Inst Sci & TEchnol, Dept Environm Sci & Engn, Kwangju, South Korea 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Sun, AP,Chun, HY,Baik, JJ,et al. Influence of electrification on microphysical and dynamical processes in a numerically simulated thunderstorm[J]. JOURNAL OF APPLIED METEOROLOGY,2002,41(11):1112-1127.
APA	Sun, AP,Chun, HY,Baik, JJ,&Yan, MH.(2002).Influence of electrification on microphysical and dynamical processes in a numerically simulated thunderstorm.JOURNAL OF APPLIED METEOROLOGY,41(11),1112-1127.
MLA	Sun, AP,et al."Influence of electrification on microphysical and dynamical processes in a numerically simulated thunderstorm".JOURNAL OF APPLIED METEOROLOGY 41.11(2002):1112-1127.

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