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DOI	10.1016/j.atmosres.2020.105058
	MPV-Q⁎ view of vorticity development in a saturated atmosphere
	Yao X.; Gao Y.; Ma J.
发表日期	2020
ISSN	0169-8095
卷号	244
英文摘要	Based on the three-dimensional moist potential vorticity (MPV) equation and diabatic heating excluding latent heating (Q), a Lagrangian vertical vorticity equation is deduced for a saturated atmosphere. The convective stability and water vapor are considered in this equation, and the impacts of sensible heating and radiative heating on the vertical vorticity development are focused. This MPV-Q theory is then applied to a vortex case over the Yangtze-Huaihe River valley of China in 2016. The contributions of the convective stability, MPV and the horizontal component of MPV (MPV2) to the development of vertical vorticity are investigated, and the influence of nonuniform spatial distribution of Q* on the movement of the vortex is expounded. Theoretical deduction and case analysis show that, the more convectively neutral the atmosphere tends to be, the more favorable it is for the vortex development. Q⁎ affects the development of vertical vorticity by affecting MPV. Considering the convective stability, the effect of Q* on vortices can be divided into four scenarios. When the atmosphere is convectively unstable (stable), the increase (decrease) in MPV2 will lead to an increase in vertical vorticity. Furthermore, the case analysis reveals that the maximum Q* corresponds coincidentally to the high-level clouds, implying the possible effect of cloud radiation. © 2020
英文关键词	Diabatic heating; Moist potential vorticity; Saturated atmosphere; Vertical vorticity
语种	英语
scopus关键词	Heating; Vortex flow; Cloud radiation; Convective stability; Diabatic heating; High level clouds; Potential vorticity; Radiative heating; Sensible heating; Vertical vorticity; Vorticity; convective system; diabatic process; equation; heating; Lagrangian analysis; potential vorticity; sensible heat flux; spatial distribution; three-dimensional modeling; water vapor; China; Yangtze River; Moroccan pepper virus
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141846
作者单位	China Meteorological Administration Training Centre, Beijing, 100081, China; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; Chinese Academy of Meteorological Sciences, Beijing, 100081, China; Liaoning Provincial Weather Modification Office, Shenyang, 110166, China
推荐引用方式 GB/T 7714	Yao X.,Gao Y.,Ma J.. MPV-Q⁎ view of vorticity development in a saturated atmosphere[J],2020,244.
APA	Yao X.,Gao Y.,&Ma J..(2020).MPV-Q⁎ view of vorticity development in a saturated atmosphere.Atmospheric Research,244.
MLA	Yao X.,et al."MPV-Q⁎ view of vorticity development in a saturated atmosphere".Atmospheric Research 244(2020).