globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL060785
论文题名:
Effects of crustal field rotation on the solar wind plasma interaction with Mars
作者: Ma Y.; Fang X.; Russell C.T.; Nagy A.F.; Toth G.; Luhmann J.G.; Brain D.A.; Dong C.
刊名: Geophysical Research Letters
ISSN: 0094-9751
EISSN: 1944-9482
出版年: 2014
卷: 41, 期:19
起始页码: 6563
结束页码: 6569
语种: 英语
英文关键词: crustal field ; Mars ; rotation
Scopus关键词: Computer simulation ; Heavy ions ; Magnetic fields ; Magnetoplasma ; Orbits ; Plasma interactions ; Rotation ; Solar wind ; Time delay ; Crustal fields ; Field observations ; Ionospheric structures ; Magnetic field configurations ; Mars ; Mars global surveyor ; Self consistent modeling ; Solar wind interactions ; Magnetohydrodynamics ; correlation ; ionosphere ; magnetic field ; Mars ; orbit determination ; plasma ; rotation ; solar wind
英文摘要: The crustal remnant field on Mars rotates with the planet at a period of 24 h 37 min, constantly varying the magnetic field configuration interacting with the solar wind. Until now, there has been no self-consistent modeling investigation on how this varying magnetic field affects the solar wind plasma interaction. Here we include the rotation of this localized crustal field in a multispecies single-fluid MHD model of Mars and simulate an entire day of solar wind interaction under normal solar wind conditions. The MHD model results are compared with Mars Global Surveyor (MGS) magnetic field observations and show very close agreement, especially for the field strength along almost all of the 12 orbits on the day simulated. Model results also show that the ion escape rates slowly vary with rotation, generally anticorrelating with the strength of subsolar magnetic crustal sources, with some time delay. In addition, it is found that in the intense crustal field regions, the densities of heavy ion components enhance significantly along the MGS orbit, implying strong influence of the crustal field on the ionospheric structures. Key Points Model results closely agree with MGS observationsIon escape rates slowly vary with rotationCrustal field has strong influence on the ionospheric structures ©2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911396854&doi=10.1002%2f2014GL060785&partnerID=40&md5=48f12a563a81fc3a003af196ba16b0fb
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7015
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作者单位: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA, United States

Recommended Citation:
Ma Y.,Fang X.,Russell C.T.,et al. Effects of crustal field rotation on the solar wind plasma interaction with Mars[J]. Geophysical Research Letters,2014-01-01,41(19).
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