气候变化领域集成服务门户(CCPortal): Cloud regimes over the Amazon Basin: Perspectives from the GoAmazon2014/5 campaign

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DOI	10.5194/acp-20-7489-2020
	Cloud regimes over the Amazon Basin: Perspectives from the GoAmazon2014/5 campaign
	Giangrande S.E.; Wang D.; Mechem D.B.
发表日期	2020
ISSN	1680-7316
起始页码	7489
结束页码	7507
卷号	20 期号:12
英文摘要	Radiosonde observations collected during the GoAmazon2014/5 campaign are analyzed to identify the primary thermodynamic regimes accompanying different modes of convection over the Amazon. This analysis identifies five thermodynamic regimes that are consistent with traditional Amazon calendar definitions of seasonal shifts, which include one wet, one transitional, and three dry season regimes based on a k-means cluster analysis. A multisensor ground-based approach is used to project associated bulk cloud and precipitation properties onto these regimes. This is done to assess the propensity for each regime to be associated with different characteristic cloud frequency, cloud types, and precipitation properties. Additional emphasis is given to those regimes that promote deep convective precipitation and organized convective systems. Overall, we find reduced cloud cover and precipitation rates to be associated with the three dry regimes and those with the highest convective inhibition. While approximately 15% of the dataset is designated as organized convection, these events are predominantly contained within the transitional regime. © 2020 Author(s).
语种	英语
scopus关键词	cloud cover; convective system; inhibition; precipitation (climatology); radiosonde; thermodynamics; Amazon Basin
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/247686
作者单位	Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, NY, United States; Department of Geography and Atmospheric Science, University of Kansas, Lawrence, KS, United States
推荐引用方式 GB/T 7714	Giangrande S.E.,Wang D.,Mechem D.B.. Cloud regimes over the Amazon Basin: Perspectives from the GoAmazon2014/5 campaign[J],2020,20(12).
APA	Giangrande S.E.,Wang D.,&Mechem D.B..(2020).Cloud regimes over the Amazon Basin: Perspectives from the GoAmazon2014/5 campaign.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(12).
MLA	Giangrande S.E.,et al."Cloud regimes over the Amazon Basin: Perspectives from the GoAmazon2014/5 campaign".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.12(2020).