气候变化领域集成服务门户(CCPortal): The Atmospheric Drivers of the Major Saharan Dust Storm in June 2020

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DOI	10.1029/2020GL090102
	The Atmospheric Drivers of the Major Saharan Dust Storm in June 2020
	Francis D.; Fonseca R.; Nelli N.; Cuesta J.; Weston M.; Evan A.; Temimi M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:24
英文摘要	This study investigates the atmospheric dynamics of the major dust storm that occurred in June 2020 over the Sahara and during which dust clouds associated with the highest-on-record aerosol optical depths were transported toward the America. An anomalous atmospheric circulation pattern in the mid-latitudes, linked to a circumglobal wavetrain, resulted in the development of a subtropical high-pressure system to the west of the Saharan heat low. This created a pressure dipole and generated anomalously strong northeasterlies over the Sahara, which caused continuous dust emissions over 4 days. Occurring along the northern fringes of the intertropical discontinuity, the dust was transported to higher altitudes (6 km) by the strong updraft in this region. This injected the dust at the African Easterly Jet (AEJ) altitudes and favored a rapid westward long-range transport. The AEJ was also anomalously strong, being strengthened by the anticyclonic circulation associated with the anomalous high. © 2020. The Authors.
英文关键词	Storms; Aerosol optical depths; African easterly jet; Anticyclonic circulation; Atmospheric circulation patterns; Atmospheric dynamics; Dust emission; High pressure system; Long range transport; Dust
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169293
作者单位	Environmental and Geophysical Sciences (ENGEOS) Laboratory, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Laboratoire Interuniversitaire des Systèmes Atmosphériques, CNRS and Université Paris-Est Créteil Val de Marne, Créteil, France; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Department of Civil, Environmental, and Ocean Engineering (CEOE), Stevens Institute of Technology, Hoboken, NJ, United States
推荐引用方式 GB/T 7714	Francis D.,Fonseca R.,Nelli N.,et al. The Atmospheric Drivers of the Major Saharan Dust Storm in June 2020[J],2020,47(24).
APA	Francis D..,Fonseca R..,Nelli N..,Cuesta J..,Weston M..,...&Temimi M..(2020).The Atmospheric Drivers of the Major Saharan Dust Storm in June 2020.Geophysical Research Letters,47(24).
MLA	Francis D.,et al."The Atmospheric Drivers of the Major Saharan Dust Storm in June 2020".Geophysical Research Letters 47.24(2020).