Withers, Paul, Matta, M., Lester, M., Andrews, D., Edberg, N. J. T., Nilsson, H., Opgenoorth, H., Curry, S., Lillis, R., Dubinin, E., Fraenz, M., Hang, X., Kofman, W., Lei, L., Morgan, D., Paetzold, M., Peter, K., Opitz, A., Wild, J. A. and Witasse, O. (2016). The morphology of the topside ionosphere of Mars under different solar wind conditions: Results of a multi-instrument observing campaign by Mars Express in 2010. Planet Space Sci., 120. S. 24 - 35. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 0032-0633

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Abstract

Since the internally-generated magnetic field of Mars is weak, strong coupling is expected between the solar wind, planetary magnetosphere, and planetary ionosphere. However, few previous observational studies of this coupling incorporated data that extended from the solar wind to deep into the ionosphere. Here we use solar wind, magnetosphere, and ionosphere data obtained by the Mars Express spacecraft during March/April 2010 to investigate this coupling. We focus on three case studies, each centered on a pair of ionospheric electron density profiles measured by radio occultations, where the two profiles in each pair were obtained from the same location at art interval of only a few days. We find that high dynamic pressures in the solar wind are associated with compression of the magnetosphere, heating of the magnetosheath, reduction in the vertical extent of the ionosphere, and abrupt changes in electron density at the top of the ionosphere. The first three of these associations are analogous to the behavior of the plasma environment of Venus, but the final one is not. These results reinforce the notion that changes in solar forcing influence the behaviors of all of the tightly coupled regions within the Martian plasma environment. (C) 2015 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Withers, PaulUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Matta, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lester, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Andrews, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Edberg, N. J. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nilsson, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Opgenoorth, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Curry, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lillis, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dubinin, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fraenz, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hang, X.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kofman, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lei, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Morgan, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Paetzold, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Peter, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Opitz, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wild, J. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Witasse, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-293321
DOI: 10.1016/j.pss.2015.10.013
Journal or Publication Title: Planet Space Sci.
Volume: 120
Page Range: S. 24 - 35
Date: 2016
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication: OXFORD
ISSN: 0032-0633
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
CRUSTAL MAGNETIC-FIELD; DYNAMIC PRESSURE; RADAR SOUNDINGS; VENUS; IONIZATION; BOUNDARY; ASPERA-3; MODELMultiple languages
Astronomy & AstrophysicsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/29332

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