Comparison of Observed and Modeled Magnetic Fields in the Earth's Magnetosheath

0536925 - ASÚ 2021 RIV US eng J - Journal Article
Vandas, Marek - Němeček, Z. - Šafránková, J. - Romashets, E. P. - Hájoš, Mychajlo
Comparison of Observed and Modeled Magnetic Fields in the Earth's Magnetosheath.
Journal of Geophysical Research-Space Physics. Roč. 125, č. 3 (2020), č. článku e2019JA027705. ISSN 2169-9380. E-ISSN 2169-9402
R&D Projects: GA ČR(CZ) GA17-06065S
Institutional support: RVO:67985815 ; RVO:68378289
Keywords : solar-wind * predictive model * plasma-flow
OECD category: Astronomy (including astrophysics,space science); Fluids and plasma physics (including surface physics) (UFA-U)
Impact factor: 2.811, year: 2020
Method of publishing: Limited access
https://doi.org/10.1029/2019JA027705

Observations of the magnetic field for two passages through the Earth's magnetosheath are used for comparison with two simple models of the magnetosheath field that describe it as a potential field. We apply the Kobel and Fluckiger (1994, https://doi.org/10.1029/94JA01778) model and the Romashets and Vandas (2019, https://doi.org/10.1029/2006JA012072) model complemented with the Jelinek et al. (2012, https://doi.org/10.1029/2011JA017252) empirical determination of the bow shock and magnetopause shapes and positions. The models yield a satisfactory match to observations when the positions and shapes of the bow shock and the magnetopause are controlled by the instantaneous solar wind upstream dynamic pressure and the instantaneous upstream interplanetary magnetic field vector is taken into account.
Permanent Link: http://hdl.handle.net/11104/0314679