globalchange  > 科学计划与规划
DOI: 10.1002/2015GL065319
论文题名:
New observations of molecular nitrogen in the Martian upper atmosphere by IUVS on MAVEN
作者: Stevens M.H.; Evans J.S.; Schneider N.M.; Stewart A.I.F.; Deighan J.; Jain S.K.; Crismani M.; Stiepen A.; Chaffin M.S.; McClintock W.E.; Holsclaw G.M.; Lefèvre F.; Lo D.Y.; Clarke J.T.; Montmessin F.; Bougher S.W.; Jakosky B.M.
刊名: Geophysical Research Letters
ISSN: 0094-8482
EISSN: 1944-8213
出版年: 2015
卷: 42, 期:21
起始页码: 9050
结束页码: 9056
语种: 英语
英文关键词: airglow ; Mars ; MAVEN ; spectroscopy ; thermosphere ; ultraviolet
Scopus关键词: Ionosphere ; Linear regression ; NASA ; Nitrogen ; Regression analysis ; Spectroscopy ; Ultraviolet spectroscopy ; Airglow ; Mars ; MAVEN ; Thermosphere ; Ultraviolet ; Upper atmosphere ; airglow ; atmospheric general circulation model ; data interpretation ; density ; emission inventory ; identification method ; instrumentation ; Martian atmosphere ; nitrogen ; observational method ; satellite data ; spacecraft ; spectroscopy ; thermosphere ; ultraviolet radiation
英文摘要: We identify molecular nitrogen (N2) emissions in the Martian upper atmosphere using the Imaging Ultraviolet Spectrograph (IUVS) on NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) mission. We report the first observations of the N2 Lyman-Birge-Hopfield (LBH) bands at Mars and confirm the tentative identification of the N2 Vegard-Kaplan (VK) bands. We retrieve N2 density profiles from the VK limb emissions and compare calculated limb radiances between 90 and 210 km against both observations and predictions from a Mars general circulation model (GCM). Contrary to earlier analyses using other satellite data, we find that N2 abundances exceed GCM results by about a factor of 2 at 130 km but are in agreement at 150 km. The analysis and interpretation are enabled by a linear regression method used to extract components of UV spectra from IUVS limb observations. © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955193777&doi=10.1002%2f2015GL065319&partnerID=40&md5=469bc49627e08344f85611a496414448
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8098
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: Space Science Division, Naval Research Laboratory, Washington, DC, United States

Recommended Citation:
Stevens M.H.,Evans J.S.,Schneider N.M.,et al. New observations of molecular nitrogen in the Martian upper atmosphere by IUVS on MAVEN[J]. Geophysical Research Letters,2015-01-01,42(21).
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