globalchange  > 科学计划与规划
DOI: 10.1002/2015GL065294
论文题名:
Probing the Martian atmosphere with MAVEN/IUVS stellar occultations
作者: Gröller H.; Yelle R.V.; Koskinen T.T.; Montmessin F.; Lacombe G.; Schneider N.M.; Deighan J.; Stewart A.I.F.; Jain S.K.; Chaffin M.S.; Crismani M.M.J.; Stiepen A.; Lefèvre F.; McClintock W.E.; Clarke J.T.; Holsclaw G.M.; Mahaffy P.R.; Bougher S.W.; Jakosky B.M.
刊名: Geophysical Research Letters
ISSN: 0094-8473
EISSN: 1944-8204
出版年: 2015
卷: 42, 期:21
起始页码: 9064
结束页码: 9070
语种: 英语
英文关键词: Atmosphere ; CO2 and O2 Density ; IUVS/MAVEN ; Mars ; Stellar Occultation ; Temperature
Scopus关键词: Climate models ; Earth atmosphere ; Ionosphere ; Stars ; Temperature ; Calculation of temperature ; Density profile ; IUVS/MAVEN ; Lower thermosphere ; Mars ; Martian atmospheres ; Stellar occultation ; Volatile evolution ; Carbon dioxide ; carbon dioxide ; database ; electron density ; instrumentation ; Martian atmosphere ; spatiotemporal analysis ; temperature gradient ; thermosphere ; ultraviolet radiation
英文摘要: The first campaign of stellar occultations with the Imaging Ultraviolet Spectrograph (IUVS) instrument on board of Mars Atmosphere and Volatile EvolutioN (MAVEN) mission was executed between 24 and 26 March 2015. From this campaign 13 occultations are used to retrieve CO2 and O2 number densities in the altitude range between 100 and 150 km. Observations probe primarily the low-latitude regions on the nightside of the planet, just past the dawn and dusk terminator. Calculation of temperature from the CO2 density profiles reveals that the lower thermosphere is significantly cooler than predicted by the models in the Mars Climate Database. A systematically cold layer with temperatures of 105-120 K is seen in the occultations at a pressure level around 7 × 10-6 Pa. © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955198256&doi=10.1002%2f2015GL065294&partnerID=40&md5=5537e14093177b0216c319dfdfaef2ac
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8089
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, United States

Recommended Citation:
Gröller H.,Yelle R.V.,Koskinen T.T.,et al. Probing the Martian atmosphere with MAVEN/IUVS stellar occultations[J]. Geophysical Research Letters,2015-01-01,42(21).
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