气候变化领域集成服务门户(CCPortal): Convective updrafts near sea-breeze fronts

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DOI	10.5194/acp-22-7727-2022
	Convective updrafts near sea-breeze fronts
	Fu, Shizuo; Rotunno, Richard; Xue, Huiwen
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	7727
结束页码	7738
卷号	22 期号:11 页码:12
英文摘要	Sea-breeze fronts (SBFs) are frequently found to trigger deep convection. The convective updrafts near the SBF are critical in this triggering process. Here, the size and strength of the updrafts near an idealized SBF are investigated with large-eddy simulations. A central focus of this study is to compare the updrafts near the SBF, which are substantially affected by the SBF, to the updrafts ahead of the SBF, which develop in a typical convective boundary layer. It is found that the updrafts near the SBF are larger than but have similar strength to the updrafts ahead of the SBF. The larger updrafts near the SBF are produced through the merger between the postfrontal streaky structures and the updrafts originating near the SBF. Lagrangian budget analysis of vertical momentum reveals that the dynamics experienced by the parcels constituting the updrafts near the SBF is almost the same as that ahead of the SBF, so that the strength of the updrafts near the SBF is similar to that ahead of the SBF. It is also found that when the environmental wind is not included, the size and strength of the updrafts near the SBF scale with the boundary-layer height and the convective velocity scale, respectively, like those in the typical convective boundary layer; however, when the environmental wind is included, the aforementioned scaling breaks down. The present results should also apply to other boundary-layer convergence lines similar to the SBF.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000811029000001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273045
作者单位	Fujian Normal University; Fujian Normal University; National Center Atmospheric Research (NCAR) - USA; Peking University
推荐引用方式 GB/T 7714	Fu, Shizuo,Rotunno, Richard,Xue, Huiwen. Convective updrafts near sea-breeze fronts[J],2022,22(11):12.
APA	Fu, Shizuo,Rotunno, Richard,&Xue, Huiwen.(2022).Convective updrafts near sea-breeze fronts.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(11),12.
MLA	Fu, Shizuo,et al."Convective updrafts near sea-breeze fronts".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.11(2022):12.