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Propagation of a shock-related disturbance in the Earth's magnetosphere

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Andreeova, K.
dc.contributor.author Pulkkinen, Tuija I.
dc.contributor.author Juusola, L.
dc.contributor.author Palmroth, M.
dc.contributor.author Santolik, O.
dc.date.accessioned 2015-03-25T10:00:24Z
dc.date.available 2015-03-25T10:00:24Z
dc.date.issued 2011
dc.identifier.citation Andreeova, K. & Pulkkinen, Tuija I. & Juusola, L. & Palmroth, M. & Santolik, O.. 2011. Propagation of a shock-related disturbance in the Earth's magnetosphere. Journal of Geophysical Research: Space physics, Vol. 116, nro A01213. P. 10. 0148-0227 (printed). DOI: 10.1029/2010JA015908. en
dc.identifier.issn 0148-0227 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/15425
dc.description.abstract The Grand Unified Magnetosphere-Ionosphere Coupling Simulation, version 4, magnetohydrodynamic simulation of the interplanetary shock event on 9 November 2002 is used to determine the shock-associated disturbance propagation characteristics inside the Earth's magnetosphere. Interaction of an interplanetary fast forward shock with the magnetopause caused a shock-related disturbance inside the magnetosphere that propagated at a speed significantly higher than that in the solar wind or magnetosheath. The propagation direction of the disturbance was calculated from the Rankine-Hugoniot conditions, velocity and magnetic coplanarity, and minimum variance analysis and is shown to vary in different regions of the magnetosphere. Furthermore, the impulse disturbance wave mode changes as the plasma and field conditions change inside the magnetosphere. These results bring important new information about the propagation processes that is not directly obtainable from point measurements made by (even several) spacecraft. On the other hand, comparison of ionospheric observations from the IMAGE magnetometer chain with geosynchronous data allow us to also interpret the double step structure observed at dayside geosynchronous orbit, which is below the simulation resolution. This combination provides us with quite a complete view on shock propagation inside the magnetosphere. en
dc.format.extent 10
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Geophysical Union. Wiley en
dc.relation.ispartofseries Journal of Geophysical Research: Space physics, Vol. 116, nro A01213 en
dc.subject.other Meteorology en
dc.subject.other Space technology en
dc.subject.other Physics en
dc.title Propagation of a shock-related disturbance in the Earth's magnetosphere en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Geophysical Union. Wiley
dc.contributor.school Sähkötekniikan korkeakoulu fi
dc.contributor.school School of Electrical Engineering en
dc.subject.keyword Interplanetary shocks en
dc.subject.keyword MHD waves and instabilities en
dc.subject.keyword Magnetosphere/ionosphere interactions en
dc.subject.keyword Magnetosphere: outer en
dc.subject.keyword Numerical modeling en
dc.identifier.urn URN:NBN:fi:aalto-201503242055
dc.type.dcmitype text en
dc.identifier.doi 10.1029/2010JA015908
dc.type.version Final published version en

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