气候变化领域集成服务门户(CCPortal): A large-eddy simulation study of deep-convection initiation through the collision of two sea-breeze fronts

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DOI	10.5194/acp-21-9289-2021
	A large-eddy simulation study of deep-convection initiation through the collision of two sea-breeze fronts
	Fu S.; Rotunno R.; Chen J.; Deng X.; Xue H.
发表日期	2021
ISSN	1680-7316
起始页码	9289
结束页码	9308
卷号	21 期号:12
英文摘要	Deep convection plays important roles in producing severe weather and regulating the large-scale circulation. However, deep-convection initiation (DCI), which determines when and where deep convection develops, has not yet been fully understood. Here, large-eddy simulations are performed to investigate the detailed processes of DCI, which occurs through the collision of two sea-breeze fronts developing over a peninsula. In the simulation with a maximum total heat flux over land of 700 or 500Wm-2, DCI is accomplished through the development of three generations of convection. The first generation of convection is randomly produced along the colliding sea-breeze fronts. The second generation of convection only develops in regions where no strong downdrafts are produced by the first generation of convection and is also mainly produced through the collision of the sea-breeze fronts. The third generation of convection mainly develops from the intersection points of the cold pools produced by the second generation of convection and is produced through the collision between the gust fronts and the sea-breeze fronts. Decreasing the maximum total heat flux from 700 to 500Wm-2 weakens each generation of convection. Further decreasing the maximum total heat flux to 300Wm-2 leads to only one generation of shallow convection. © 2021 Shizuo Fu et al.
语种	英语
scopus关键词	atmospheric convection; atmospheric front; heat flux; large eddy simulation; sea breeze
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/246795
作者单位	Key Laboratory for Humid Subtropical Eco-Geographical Processes, Ministry of Education, Fujian Normal University, Fuzhou, China; School of Geographical Sciences, Fujian Normal University, Fuzhou, China; National Center for Atmospheric Research, Boulder, CO, United States; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation, China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, China; College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China; Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China
推荐引用方式 GB/T 7714	Fu S.,Rotunno R.,Chen J.,et al. A large-eddy simulation study of deep-convection initiation through the collision of two sea-breeze fronts[J],2021,21(12).
APA	Fu S.,Rotunno R.,Chen J.,Deng X.,&Xue H..(2021).A large-eddy simulation study of deep-convection initiation through the collision of two sea-breeze fronts.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(12).
MLA	Fu S.,et al."A large-eddy simulation study of deep-convection initiation through the collision of two sea-breeze fronts".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.12(2021).