气候变化领域集成服务门户(CCPortal): Mariner 9 ultraviolet spectrometer experiment: Initial results

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DOI	10.1126/science.175.4019.309
	Mariner 9 ultraviolet spectrometer experiment: Initial results
	Barth C.A.; Hord C.W.; Stewart A.I.; Lane A.L.
发表日期	1972
ISSN	0036-8075
起始页码	309
结束页码	312
卷号	175 期号:4019
英文摘要	The ultraviolet airglow spectrum of Mars has been measured from an orbiting spacecraft during a 30-day period in November-December 1971. The emission rates of the carbon monoxide Cameron and fourth positive bands, the atomic oxygen 1304-angstrom line and the atomic hydrogen 1216-angstrom line have been measured as a function of altitude. Significant variations in the scale height of the CO Cameron band airglow have been observed during a period of variable solar activity; however, the atomic oxygen and hydrogen airglow lines are present during all the observations. Measurements of the reflectance of the lower atmosphere of Mars show the spectral characteristics of particle scattering and a magnitude that is about 50 percent of that measured during the Mariner 6 and 7 experiments in 1969. The variation of reflectance across the planet may be represented by a model in which the dominant scatterer is dust that absorbs in the ultraviolet and has an optical depth greater than 1. The atmosphere above the polar region is clearer than over the rest of the planet.
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/242970
作者单位	Department of Astro-Geophysics, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80302, United States; Space Science Division, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91103, United States
推荐引用方式 GB/T 7714	Barth C.A.,Hord C.W.,Stewart A.I.,et al. Mariner 9 ultraviolet spectrometer experiment: Initial results[J],1972,175(4019).
APA	Barth C.A.,Hord C.W.,Stewart A.I.,&Lane A.L..(1972).Mariner 9 ultraviolet spectrometer experiment: Initial results.Science,175(4019).
MLA	Barth C.A.,et al."Mariner 9 ultraviolet spectrometer experiment: Initial results".Science 175.4019(1972).