气候变化领域集成服务门户(CCPortal): Abrupt cloud clearing of marine stratocumulus in the subtropical southeast Atlantic

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DOI	10.1126/science.aar5836
	Abrupt cloud clearing of marine stratocumulus in the subtropical southeast Atlantic
	Yuter S.E.; Hader J.D.; Miller M.A.; Mechem D.B.
发表日期	2018
ISSN	0036-8075
起始页码	697
结束页码	701
卷号	361 期号:6403
英文摘要	We document rapid and abrupt clearings of large portions of the subtropical marine low cloud deck that have implications for the global radiation balance and climate sensitivity. Over the southeast Atlantic, large areas of stratocumulus are quickly eroded, yielding partial or complete clearing along sharp transitions hundreds to thousands of kilometers in length that move westward at 8 to 12 meters per second and travel as far as 1000+ kilometers from the African coast. The westward-moving cloudiness reductions have an annual peak in occurrence in the period from April through June. The cloud erosion boundaries reduce cloud at ≈10-kilometer scale in less than 15 minutes, move approximately perpendicular to the mean flow, and are often accompanied by small-scale wave features. Observations suggest that the cloud erosion is caused by atmospheric gravity waves. © 2017 The Authors.
英文关键词	cloud cover; gravity wave; marine environment; radiation balance; stratocumulus; subtropical region; article; climate change; gravity; radiation; seashore; travel; Atlantic Ocean; Atlantic Ocean (Southeast)
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246124
作者单位	Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, NC, United States; ICF, Fairfax, VA, United States; Department of Geography and Atmospheric Science, University of Kansas, Lawrence, KS, United States
推荐引用方式 GB/T 7714	Yuter S.E.,Hader J.D.,Miller M.A.,et al. Abrupt cloud clearing of marine stratocumulus in the subtropical southeast Atlantic[J],2018,361(6403).
APA	Yuter S.E.,Hader J.D.,Miller M.A.,&Mechem D.B..(2018).Abrupt cloud clearing of marine stratocumulus in the subtropical southeast Atlantic.Science,361(6403).
MLA	Yuter S.E.,et al."Abrupt cloud clearing of marine stratocumulus in the subtropical southeast Atlantic".Science 361.6403(2018).