气候变化领域集成服务门户(CCPortal): Unmasking the negative greenhouse effect over the Antarctic Plateau

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DOI	10.1038/s41612-018-0031-y
	Unmasking the negative greenhouse effect over the Antarctic Plateau
	Sejas S.A.; Taylor P.C.; Cai M.
发表日期	2018
ISSN	23973722
卷号	1 期号:1
英文摘要	A paradoxical negative greenhouse effect has been found over the Antarctic Plateau, indicating that greenhouse gases enhance energy loss to space. Using 13 years of NASA satellite observations, we verify the existence of the negative greenhouse effect and find that the magnitude and sign of the effect varies seasonally and spectrally. A previous explanation attributes this effect solely to stratospheric CO2; however, we surprisingly find that the negative greenhouse effect is predominantly caused by tropospheric water vapor. A recently developed principle-based concept is used to provide a complete account of the Antarctic Plateau’s negative greenhouse effect indicating that it is controlled by the vertical variation of temperature and greenhouse gas absorption. Our findings indicate that unique climatological conditions over the Antarctic Plateau—a strong surface-based temperature inversion and scarcity of free tropospheric water vapor—cause the negative greenhouse effect. © 2018, The Author(s).
语种	英语
scopus关键词	carbon dioxide; climatology; greenhouse effect; satellite data; stratosphere; troposphere; water vapor; Antarctic Plateau; Antarctica; East Antarctica
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178130
作者单位	NASA Langley Research Center, Climate Science Branch, Hampton, VA, United States; Department of Earth, Ocean & Atmospheric Sciences, Florida State University, Tallahassee, FL, United States
推荐引用方式 GB/T 7714	Sejas S.A.,Taylor P.C.,Cai M.. Unmasking the negative greenhouse effect over the Antarctic Plateau[J],2018,1(1).
APA	Sejas S.A.,Taylor P.C.,&Cai M..(2018).Unmasking the negative greenhouse effect over the Antarctic Plateau.npj Climate and Atmospheric Science,1(1).
MLA	Sejas S.A.,et al."Unmasking the negative greenhouse effect over the Antarctic Plateau".npj Climate and Atmospheric Science 1.1(2018).