uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
One year in the Earth's magnetosphere: A global MHD simulation and spacecraft measurements
Hungarian Acad Sci, Res Ctr Astron & Earth Sci, Geodet & Geophys Inst, Sopron, Hungary.;Finnish Meteorol Inst, FIN-00101 Helsinki, Finland..
Finnish Meteorol Inst, FIN-00101 Helsinki, Finland.;NASA, Goddard Space Flight Ctr, Greenbelt, MD USA..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division. DNV GL, Res & Innovat, Hovik, Norway..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
Show others and affiliations
2016 (English)In: Space Weather: The international journal of research and applications, ISSN 1542-7390, E-ISSN 1542-7390, Vol. 14, no 5, 351-367 p.Article in journal (Refereed) PublishedText
Abstract [en]

The response of the Earth's magnetosphere to changing solar wind conditions is studied with a 3-D Magnetohydrodynamic (MHD) model. One full year (155 Cluster orbits) of the Earth's magnetosphere is simulated using Grand Unified Magnetosphere Ionosphere Coupling simulation (GUMICS-4) magnetohydrodynamic code. Real solar wind measurements are given to the code as input to create the longest lasting global magnetohydrodynamics simulation to date. The applicability of the results of the simulation depends critically on the input parameters used in the model. Therefore, the validity and the variance of the OMNIWeb data are first investigated thoroughly using Cluster measurement close to the bow shock. The OMNIWeb and the Cluster data were found to correlate very well before the bow shock. The solar wind magnetic field and plasma parameters are not changed significantly from the L-1 Lagrange point to the foreshock; therefore, the OMNIWeb data are appropriate input to the GUMICS-4. The Cluster SC3 footprints are determined by magnetic field mapping from the simulation results and the Tsyganenko (T96) model in order to compare two methods. The determined footprints are in rather good agreement with the T96. However, it was found that the footprints agree better in the Northern Hemisphere than the Southern one during quiet conditions. If the B-y is not zero, the agreement of the GUMICS-4 and T96 footprint is worse in longitude in the Southern Hemisphere. Overall, the study implies that a 3-D MHD model can increase our insight of the response of the magnetosphere to solar wind conditions.

Place, publisher, year, edition, pages
2016. Vol. 14, no 5, 351-367 p.
National Category
Meteorology and Atmospheric Sciences Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-299799DOI: 10.1002/2015SW001355ISI: 000378155300004OAI: oai:DiVA.org:uu-299799DiVA: diva2:950144
Funder
EU, European Research Council, 263325; 262863; 200141-QuESpaceSwedish National Space Board
Available from: 2016-07-27 Created: 2016-07-27 Last updated: 2016-07-27Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Palin, LaurianneOpgenoorth, Hermann
By organisation
Swedish Institute of Space Physics, Uppsala Division
In the same journal
Space Weather: The international journal of research and applications
Meteorology and Atmospheric SciencesAstronomy, Astrophysics and Cosmology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 17 hits
ReferencesLink to record
Permanent link

Direct link