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The magnetospheric driver of subauroral ion drifts

dc.contributor.authorDe Keyser, J.
dc.contributor.authorRoth, M.
dc.contributor.authorLemaire, J.
dc.date1998
dc.date.accessioned2017-05-19T10:56:26Z
dc.date.available2017-05-19T10:56:26Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/5400
dc.descriptionSubauroral ion drifts (SAID) are narrow layers of intense westward ionospheric flow observed during substorms. We present numerical simulations showing that the combined effect of thermo-electric and convection electric fields in a magnetospheric current sheet - when mapped down to the ionosphere - can account for the westward direction of the ion drift, the width and intensity of the drift speed peak, and the lifetime of SAID. The model can also explain why SAID occur mainly in the pre-midnight sector.
dc.languageeng
dc.titleThe magnetospheric driver of subauroral ion drifts
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeElectric fields
dc.subject.freeIonosphere
dc.subject.freeIons
dc.subject.freeComputer simulation
dc.subject.freeElectric fields
dc.subject.freeIonosphere
dc.subject.freeMagnetosphere
dc.subject.freeThermoelectricity
dc.subject.freeCombined effect
dc.subject.freeIon drifts
dc.subject.freeMagnetospheric currents
dc.subject.freeSubauroral ion drifts
dc.subject.freeSubstorms
dc.subject.freeMagnetosphere
dc.subject.freeAtmospheric composition
dc.subject.freeMagnetospheric current sheet
dc.subject.freeSubauroral ion drifts (SAID)
dc.source.titleGeophysical Research Letters
dc.source.volume25
dc.source.issue10
dc.source.page1625-1628
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/98GL01135
dc.identifier.scopus2-s2.0-0032069781


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