气候变化领域集成服务门户(CCPortal): Effect of the 2018 Martian Global Dust Storm on the CO2 Density in the Lower Nightside Thermosphere Observed From MAVEN/IUVS Lyman-Alpha Absorption

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DOI	10.1029/2019GL082889
	Effect of the 2018 Martian Global Dust Storm on the CO2 Density in the Lower Nightside Thermosphere Observed From MAVEN/IUVS Lyman-Alpha Absorption
	Chaufray J.-Y.; Chaffin M.; Deighan J.; Jain S.; Schneider N.; Mayyasi M.; Jakosky B.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:7
英文摘要	The MAVEN/Imaging Ultraviolet Spectrograph (IUVS) instrument measures Lyman-α emissions from interplanetary and Martian hydrogen at the limb and through the extended corona of Mars. In June 2018, a global dust storm (GDS) surrounded Mars for a few months, heating the lower atmosphere and leading to an expansion of the Martian atmosphere. Nightside IUVS observations before and throughout this GDS showed the altitude of CO2 absorption of Lyman-α photons in the thermosphere to increase by 4.5±1.0 km on 8 June 2018. This shift is attributed to an increase of the CO2 density by a factor 1.9±0.2 at 110 km due to the heating of the lower atmosphere. These nightside observations, not previously used to study dust storms, in an altitude range not sampled by other instruments, are consistent with dayside MAVEN observations and allow for more comprehensive determination of the global changes produced by the GDS on the Martian thermosphere. ©2019. American Geophysical Union. All Rights Reserved.
英文关键词	Carbon dioxide; Dust; Ionosphere; Alpha emissions; Altitude range; CO2 absorption; Dust storm; Global change; Lower atmosphere; Martian atmospheres; Martian global dust storms; Storms; absorption; carbon dioxide; dust; instrumentation; Mars; Martian atmosphere; thermosphere
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170502
作者单位	LATMOS/IPSL, CNRS, UVSQ Université Paris-Saclay, Sorbonne Université, Guyancourt, France; LASP, University of Colorado Boulder, Boulder, CO, United States; Center for Space Physics, Boston University, Boston, MA, United States
推荐引用方式 GB/T 7714	Chaufray J.-Y.,Chaffin M.,Deighan J.,et al. Effect of the 2018 Martian Global Dust Storm on the CO2 Density in the Lower Nightside Thermosphere Observed From MAVEN/IUVS Lyman-Alpha Absorption[J],2020,47(7).
APA	Chaufray J.-Y..,Chaffin M..,Deighan J..,Jain S..,Schneider N..,...&Jakosky B..(2020).Effect of the 2018 Martian Global Dust Storm on the CO2 Density in the Lower Nightside Thermosphere Observed From MAVEN/IUVS Lyman-Alpha Absorption.Geophysical Research Letters,47(7).
MLA	Chaufray J.-Y.,et al."Effect of the 2018 Martian Global Dust Storm on the CO2 Density in the Lower Nightside Thermosphere Observed From MAVEN/IUVS Lyman-Alpha Absorption".Geophysical Research Letters 47.7(2020).