气候变化领域集成服务门户(CCPortal): Annual heat balance of martian polar caps: Viking observations

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DOI	10.1126/science.228.4704.1160
	Annual heat balance of martian polar caps: Viking observations
	Paige D.A.; Ingersoll A.P.
发表日期	1985
ISSN	0036-8075
起始页码	1160
结束页码	1168
卷号	228 期号:4704
英文摘要	The Infrared Thermal Mappers aboard the two Viking orbiters obtained solar reflectance and infrared emission measurements of the Martian north and south polar regions during an entire Mars year. The observations were used to determine annual radiation budgets, infer annual carbon dioxide frost budgets, and constrain spring season surface and atmospheric properties with the aid of a polar radiative model. The results provide further confirmation of the presence of permanent CO2 frost deposits near the south pole and show that the stability of these deposits can be explained by their high reflectivities. In the north, the observed absence of solid CO2 during summer was primarily the result of enhanced CO2 sublimation rates due to lower frost reflectivities during spring. The results suggest that the present asymmetric behavior of CO2 frost at the Martian poles is caused by preferential contamination of the north seasonal polar cap by atmospheric dust.
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/244985
作者单位	Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena 91125; Department of Planetary, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena 91125
推荐引用方式 GB/T 7714	Paige D.A.,Ingersoll A.P.. Annual heat balance of martian polar caps: Viking observations[J],1985,228(4704).
APA	Paige D.A.,&Ingersoll A.P..(1985).Annual heat balance of martian polar caps: Viking observations.Science,228(4704).
MLA	Paige D.A.,et al."Annual heat balance of martian polar caps: Viking observations".Science 228.4704(1985).