globalchange  > 气候减缓与适应
DOI: 10.1029/2017JA025068
Scopus记录号: 2-s2.0-85047635613
论文题名:
Comparison of Global Martian Plasma Models in the Context of MAVEN Observations
作者: Egan H.; Ma Y.; Dong C.; Modolo R.; Jarvinen R.; Bougher S.; Halekas J.; Brain D.; Mcfadden J.; Connerney J.; Mitchell D.; Jakosky B.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:5
起始页码: 3714
结束页码: 3726
语种: 英语
英文摘要: Global models of the interaction of the solar wind with the Martian upper atmosphere have proved to be valuable tools for investigating both the escape to space of the Martian atmosphere and the physical processes controlling this complex interaction. The many models currently in use employ different physical assumptions, but it can be difficult to directly compare the effectiveness of the models since they are rarely run for the same input conditions. Here we present the results of a model comparison activity, where five global models (single-fluid MHD, multifluid MHD, multifluid electron pressure MHD, and two hybrid models) were run for identical conditions corresponding to a single orbit of observations from the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft. We find that low-altitude ion densities are very similar across all models and are comparable to MAVEN ion density measurements from periapsis. Plasma boundaries appear generally symmetric in all models and vary only slightly in extent. Despite these similarities there are clear morphological differences in ion behavior in other regions such as the tail and southern hemisphere. These differences are observable in ion escape loss maps and are necessary to understand in order to accurately use models in aiding our understanding of the Martian plasma environment. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113927
Appears in Collections:气候减缓与适应

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作者单位: Astrophysical and Planetary Science, University of Colorado Boulder, Boulder, CO, United States; Department of Earth Planetary and Space Sciences, University of California, Los Angeles, Los Angeles, CA, United States; Department of Astrophysical Sciences and Princeton Plasma Physics Laboratory, Princeton University, Princeton, NJ, United States; LATMOS/IPSL, UVSQ Universite Paris-Saclay, UPMC University Paris CNRS, Guyancourt, France; Finnish Meteorological Institute, Helsinki, Finland; Department of Electronics and Nanoengineering, School of Electrical Engineering, Aalto University, Espoo, Finland; Climate and Space Sciences and Engineering Department, University of Michigan, Ann Arbor, MI, United States; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States; Space Sciences Laboratory, University of California, Berkeley, Berkeley, CA, United States; NASA/Goddard Space Flight Center, Greenbelt, MD, United States

Recommended Citation:
Egan H.,Ma Y.,Dong C.,et al. Comparison of Global Martian Plasma Models in the Context of MAVEN Observations[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(5)
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