GSTDTAP  > 气候变化
DOI10.1029/2018GL077729
September 2017 Solar Flare Event: Rapid Heating of the Martian Neutral Upper Atmosphere From the X-Class Flare as Observed by MAVEN
Elrod, M. K.1,2; Curry, S. M.3; Thiemann, E. M. B.4; Jain, S. K.4
2018-09-16
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2018
卷号45期号:17页码:8803-8810
文章类型Article
语种英语
国家USA
英文摘要

On 10 September 2017, the Mars Atmosphere and Volatile EvolutioN mission observed a particularly strong X-class flare. This paper will focus on observations made by Neutral Gas and Ion Mass Spectrometer (NGIMS) and the flare response detected by extreme ultraviolet monitor. We focus the data to the region of the upper atmosphere from 160 to 300 km and to 10 orbits before and after the flare. The flare peaked near 16:12 UTC with the closest periapsis pass from 17:30 to 17:54 UTC (Lee et al., 2018, https://doi.org/10.1029/2018GL079162). NGIMS measured a significant enhancement in the neutral densities above 195 km for the flare. This enhancement stands out for the major species measured by NGIMS (Ar, CO2, CO, O, and N-2). The correlation of the flare and the enhancement in density and temperature in the upper atmosphere indicates that solar flare heating is most likely the main driver and has important implications for the effects of space weather events on terrestrial atmospheres.


Plain Language Summary 10 September 2017 saw an extraordinary solar flare event that affected both Mars and Earth, providing an unique observational opportunity. It has been observed in the past that solar flares can cause tremendous rapid heating of the upper atmosphere of the Earth, but the extent of this heating on the neutral atmosphere is yet to be well observed at Mars. Early MAVEN observations caught smaller flare effects and observed rapid heating to a lightly lesser extent. The 10 September 2017 flare is not only significantly more intense than previous observations, but the timing of neutral observations was optimal to observe just how much and how quickly the upper atmosphere responded to the flare. This can lead to refinement of atmospheric escape and atmospheric evolution.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000445727500012
WOS关键词TERRESTRIAL PLANET THERMOSPHERES ; CYCLE VARIATION ; MARS
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/27152
专题气候变化
作者单位1.NASA, Goddard Spaceflight Ctr, Greenbelt, MD USA;
2.Univ Maryland, CRESSTII, College Pk, MD 20742 USA;
3.Univ Calif, Space Sci Lab, Berkeley, CA USA;
4.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA
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GB/T 7714
Elrod, M. K.,Curry, S. M.,Thiemann, E. M. B.,et al. September 2017 Solar Flare Event: Rapid Heating of the Martian Neutral Upper Atmosphere From the X-Class Flare as Observed by MAVEN[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(17):8803-8810.
APA Elrod, M. K.,Curry, S. M.,Thiemann, E. M. B.,&Jain, S. K..(2018).September 2017 Solar Flare Event: Rapid Heating of the Martian Neutral Upper Atmosphere From the X-Class Flare as Observed by MAVEN.GEOPHYSICAL RESEARCH LETTERS,45(17),8803-8810.
MLA Elrod, M. K.,et al."September 2017 Solar Flare Event: Rapid Heating of the Martian Neutral Upper Atmosphere From the X-Class Flare as Observed by MAVEN".GEOPHYSICAL RESEARCH LETTERS 45.17(2018):8803-8810.
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