气候变化领域集成服务门户(CCPortal): A sublimation model for Martian south polar ice features

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DOI	10.1126/science.1080148
	A sublimation model for Martian south polar ice features
	Byrne S.; Ingersoll A.P.
发表日期	2003
ISSN	0036-8075
起始页码	1051
结束页码	1053
卷号	299 期号:5609
英文摘要	In their pioneering work, Leighton and Murray argued that the Mars atmosphere, which at present is 95% carbon dioxide, is controlled by vapor equilibrium with a much larger polar reservoir of solid carbon dioxide. Here we argue that the polar reservoir is small and cannot function as a long-term buffer to the more massive atmosphere. Our work is based on modeling of the circular depressions commonly found on the south polar cap. We argue that a carbon dioxide ice layer about 8 meters thick is being etched away to reveal water ice underneath. This is consistent with thermal infrared data from the Mars Odyssey mission.
英文关键词	Carbon dioxide; Extraterrestrial atmospheres; Ice; Infrared radiation; Sublimation; Thermal effects; Vapors; Vapor equilibrium; Martian surface analysis; carbon dioxide; ice; water; carbon dioxide; ice; Mars; Martian atmosphere; polar region; arctic climate; article; atmosphere; experimental model; infrared radiation; priority journal; temperature; Atmosphere; Carbon Dioxide; Dry Ice; Ice; Mars; Models, Theoretical; Seasons; Temperature; Water
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/243207
作者单位	Division of Geological Sciences, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, United States
推荐引用方式 GB/T 7714	Byrne S.,Ingersoll A.P.. A sublimation model for Martian south polar ice features[J],2003,299(5609).
APA	Byrne S.,&Ingersoll A.P..(2003).A sublimation model for Martian south polar ice features.Science,299(5609).
MLA	Byrne S.,et al."A sublimation model for Martian south polar ice features".Science 299.5609(2003).