globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL059515
论文题名:
Solar wind interaction with Mars upper atmosphere: Results from the one-way coupling between the multifluid MHD model and the MTGCM model
作者: Dong C.; Bougher S.W.; Ma Y.; Toth G.; Nagy A.F.; Najib D.
刊名: Geophysical Research Letters
ISSN: 0094-10160
EISSN: 1944-9891
出版年: 2014
卷: 41, 期:8
起始页码: 2708
结束页码: 2715
语种: 英语
英文关键词: Global Model Coupling ; Ion Escape Flux ; Martian Upper Atmosphere ; Multi-Fluid MHD ; Solar Wind Interaction
Scopus关键词: Carbon dioxide ; Ions ; Magnetohydrodynamics ; Solar energy ; Solar wind ; Spacecraft ; Three dimensional ; Coronal mass ejection ; Corotating interaction regions ; General circulation model ; Global modeling ; Long-term evolution ; Multi-fluids ; Solar wind interactions ; Spacecraft missions ; Upper atmosphere ; coronal mass ejection ; general circulation model ; ion exchange ; magnetohydrodynamics ; Mars ; Martian atmosphere ; solar cycle ; solar wind ; three-dimensional modeling ; upper atmosphere
英文摘要: The 3-D multifluid Block Adaptive Tree Solar-wind Roe Upwind Scheme (BATS-R-US) MHD code (MF-MHD) is coupled with the 3-D Mars Thermospheric general circulation model (MTGCM). The ion escape rate from the Martian upper atmosphere is investigated by using a one-way coupling approach, i.e., the MF-MHD model incorporates the effects of 3-D neutral atmosphere profiles from the MTGCM model. The calculations are carried out for two cases with different solar cycle conditions. The calculated total ion escape flux (the sum of three major ionospheric species, O+, O2+, and CO2+) for solar cycle maximum conditions (6.6×1024 s-1) is about 2.6 times larger than that of solar cycle minimum conditions (2.5×1024 s -1). Our simulation results show good agreement with recent observations of 2-3×1024 s-1 (O+, O2+, and CO2+) measured near solar cycle minimum conditions by Mars Express. An extremely high solar wind condition is also simulated which may mimic the condition of coronal mass ejections or corotating interaction regions passing Mars. Simulation results show that it can lead to a significant value of the escape flux as large as 4.3×1025s-1. Key Points To better predict the ion escape rate from Martian upper atmosphere To understand the long-term evolution of Mars atmosphere over its history To support MAVEN spacecraft mission planning and data analysis (2013-2016) ©2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899041536&doi=10.1002%2f2014GL059515&partnerID=40&md5=b1adc24c52398bea3372f5250b697421
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7424
Appears in Collections:气候减缓与适应

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作者单位: Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI, United States

Recommended Citation:
Dong C.,Bougher S.W.,Ma Y.,et al. Solar wind interaction with Mars upper atmosphere: Results from the one-way coupling between the multifluid MHD model and the MTGCM model[J]. Geophysical Research Letters,2014-01-01,41(8).
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