Supermagnetosonic subsolar magnetosheath jets and their effects: from the solar wind to the ionospheric convection

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dc.contributorVirginia Techen
dc.contributor.authorHietala, H.en
dc.contributor.authorPartamies, N.en
dc.contributor.authorLaitinen, T. V.en
dc.contributor.authorClausen, Lasse B. N.en
dc.contributor.authorFacsko, G.en
dc.contributor.authorVaivads, A.en
dc.contributor.authorKoskinen, H. E. J.en
dc.contributor.authorDandouras, I.en
dc.contributor.authorReme, H.en
dc.contributor.authorLucek, E. A.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessed2014-06-09en
dc.date.accessioned2014-06-09T19:08:54Zen
dc.date.available2014-06-09T19:08:54Zen
dc.date.issued2012en
dc.description.abstractIt has recently been proposed that ripples inherent to the bow shock during radial interplanetary magnetic field (IMF) may produce local high speed flows in the magnetosheath. These jets can have a dynamic pressure much larger than the dynamic pressure of the solar wind. On 17 March 2007, several jets of this type were observed by the Cluster spacecraft. We study in detail these jets and their effects on the magnetopause, the magnetosphere, and the ionospheric convection. We find that (1) the jets could have a scale size of up to a few RE but less than similar to 6 R-E transverse to the XGSE axis; (2) the jets caused significant local magnetopause perturbations due to their high dynamic pressure; (3) during the period when the jets were observed, irregular pulsations at the geostationary orbit and localised flow enhancements in the ionosphere were detected. We suggest that these inner magnetospheric phenomena were caused by the magnetosheath jets.en
dc.description.sponsorshipVaisala foundationen
dc.description.sponsorshipM. Ehrnrooth foundationen
dc.description.sponsorshipAcademy of Finlanden
dc.description.sponsorshipNational Science Foundation ATM-0924919en
dc.description.sponsorshipHungarian Scientific Research Fund K75640en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHietala, H., Partamies, N., Laitinen, T. V., Clausen, L. B. N., Facskó, G., Vaivads, A., Koskinen, H. E. J., Dandouras, I., Rème, H., and Lucek, E. A.: Supermagnetosonic subsolar magnetosheath jets and their effects: from the solar wind to the ionospheric convection, Ann. Geophys., 30, 33-48, doi:10.5194/angeo-30-33-2012, 2012.en
dc.identifier.doihttps://doi.org/10.5194/angeo-30-33-2012en
dc.identifier.issn0992-7689en
dc.identifier.urihttp://hdl.handle.net/10919/48601en
dc.identifier.urlhttp://www.ann-geophys.net/30/33/2012/angeo-30-33-2012.htmlen
dc.language.isoenen
dc.publisherCopernicus Publicationsen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectInterplanetary physicsen
dc.subjectPlanetary bow shocksen
dc.subjectMagnetospheric physicsen
dc.subjectMagnetosheathen
dc.subjectSolar wind-magnetosphere interactionsen
dc.subjectFlux-transfer eventsen
dc.subjectParallel bow shocken
dc.subjectUpstream pressure variationsen
dc.subjectHigh-latitude convectionen
dc.subjectQuasi-parallelen
dc.subjectMagnetic fluidsen
dc.subjectEarthsen
dc.subjectMagnetosheathen
dc.subjectRadar observationsen
dc.subjectIon reflectionen
dc.subjectClusteren
dc.subjectAstronomy & astrophysicsen
dc.subjectGeosciences, multidisciplinaryen
dc.subjectMeteorologyen
dc.subjectAtmospheric sciencesen
dc.titleSupermagnetosonic subsolar magnetosheath jets and their effects: from the solar wind to the ionospheric convectionen
dc.title.serialAnnales Geophysicaeen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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