气候变化领域集成服务门户(CCPortal): Venus thermosphere: In situ composition measurements, the temperature profile, and the homopause altitude

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DOI	10.1126/science.203.4382.768
	Venus thermosphere: In situ composition measurements, the temperature profile, and the homopause altitude
	Von Zahn U.; Krankowsky D.; Mauersberger K.; Nier A.O.; Hunten D.M.
发表日期	1979
ISSN	0036-8075
起始页码	768
结束页码	769
卷号	203 期号:4382
英文摘要	The neutral mass spectrometer on board the Pioneer Venus multiprohe bus measured composition and structural parameters of the dayside Venus upper atmosphere on 9 December 1978. Carbon dioxide and helium number densities were 6 × 109 and 5 × 106 per cubic centimeter, respectively, at an altitude of 150 kilometers. The mixing ratios of both argon-36 and argon-40 were approximately 80 parts per million at an altitude of 135 kilometers. The exospheric temperature from 160 to 170 kilometers was 285 ± 10 K. The helium homopause was found at an altitude of about 137 kilometers. Copyright © 1979 AAAS.
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/245882
作者单位	Universität Bonn, 5300 Bonn 1, Germany; Max-Planck-Institut für Kernphysik, 6900 Heidelberg 1, Germany; University of Minnesota, Minneapolis, MN 55455, United States; University of Arizona, Tuscon, AZ 85721, United States
推荐引用方式 GB/T 7714	Von Zahn U.,Krankowsky D.,Mauersberger K.,et al. Venus thermosphere: In situ composition measurements, the temperature profile, and the homopause altitude[J],1979,203(4382).
APA	Von Zahn U.,Krankowsky D.,Mauersberger K.,Nier A.O.,&Hunten D.M..(1979).Venus thermosphere: In situ composition measurements, the temperature profile, and the homopause altitude.Science,203(4382).
MLA	Von Zahn U.,et al."Venus thermosphere: In situ composition measurements, the temperature profile, and the homopause altitude".Science 203.4382(1979).