DOI: 10.1002/2015GL065329
论文题名: Structure and composition of the neutral upper atmosphere of Mars from the MAVEN NGIMS investigation
作者: Mahaffy P.R. ; Benna M. ; Elrod M. ; Yelle R.V. ; Bougher S.W. ; Stone S.W. ; Jakosky B.M.
刊名: Geophysical Research Letters
ISSN: 0094-8503
EISSN: 1944-8234
出版年: 2015
卷: 42, 期: 21 起始页码: 8951
结束页码: 8957
语种: 英语
英文关键词: atmospheric structure
; Mars
; neutral composition
; scale height
; temperature
; upper atmosphere
Scopus关键词: Atmospheric structure
; Temperature
; Density structures
; Height temperature
; Ion mass spectrometer
; Mars
; Sample Analysis at Mars investigation
; Scale height
; Sensitive detection
; Solar zenith angle
; Upper atmosphere
; altitude
; amplitude
; atmospheric structure
; detection method
; ionic composition
; latitude
; Martian atmosphere
; mass spectrometry
; midlatitude environment
; scale effect
; temperature profile
; upper atmosphere
; zenith angle
英文摘要: The Mars Atmosphere and Volatile EvolutioN (MAVEN) Neutral Gas and Ion Mass Spectrometer (NGIMS) provides sensitive detections of neutral gas and ambient ion composition. NGIMS measurements of nine atomic and molecular neutral species, and their variation with altitude, latitude, and solar zenith angle are reported over several months of operation of the MAVEN mission. Sampling NGIMS signals from multiple neutral species every several seconds reveals persistent and unexpectedly large amplitude density structures. The scale height temperatures are mapped over the course of the first few months of the mission from high down to midlatitudes. NGIMS measurements near the homopause of 40Ar/N2 ratios agree with those reported by the Sample Analysis at Mars investigation and allow the altitude of the homopause for the most abundant gases to be established. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955213586&doi=10.1002%2f2015GL065329&partnerID=40&md5=3e25bee0a6ad5d6ad06294fc9444fa27
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8119
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: Planetary Environments Laboratory, Code 699, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Recommended Citation:
Mahaffy P.R.,Benna M.,Elrod M.,et al. Structure and composition of the neutral upper atmosphere of Mars from the MAVEN NGIMS investigation[J]. Geophysical Research Letters,2015-01-01,42(21).