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dc.contributor.authorJin, Yaqi
dc.contributor.authorMoen, Jøran Idar
dc.contributor.authorOksavik, Kjellmar
dc.contributor.authorSpicher, Andres
dc.contributor.authorClausen, Lasse Boy Novock
dc.contributor.authorMiloch, Wojciech Jacek
dc.PublishedJin Y, Moen JI, Oksavik K, Spicher A, Clausen LBN, Miloch WJ. GPS scintillations associated with cusp dynamics and polar cap patches. Journal of Space Weather and Space Climate. 2017;7:A23eng
dc.description.abstractThis paper investigates the relative scintillation level associated with cusp dynamics (including precipitation, flow shears, etc.) with and without the formation of polar cap patches around the cusp inflow region by the EISCAT Svalbard radar (ESR) and two GPS scintillation receivers. A series of polar cap patches were observed by the ESR between 8:40 and 10:20 UT on December 3, 2011. The polar cap patches combined with the auroral dynamics were associated with a significantly higher GPS phase scintillation level (up to 0.6 rad) than those observed for the other two alternatives, i.e., cusp dynamics without polar cap patches, and polar cap patches without cusp aurora. The cusp auroral dynamics without plasma patches were indeed related to GPS phase scintillations at a moderate level (up to 0.3 rad). The polar cap patches away from the active cusp were associated with sporadic and moderate GPS phase scintillations (up to 0.2 rad). The main conclusion is that the worst global navigation satellite system space weather events on the dayside occur when polar cap patches enter the polar cap and are subject to particle precipitation and flow shears, which is analogous to the nightside when polar cap patches exit the polar cap and enter the auroral oval.en_US
dc.publisherEDP Sciencesen_US
dc.rightsAttribution CC BYeng
dc.subjectGPS scintillationeng
dc.subjectpolar cap patcheseng
dc.subjectcusp dynamicseng
dc.titleGPS scintillations associated with cusp dynamics and polar cap patchesen_US
dc.typePeer reviewed
dc.typeJournal article
dc.rights.holderCopyright 2017 The Author(s)en_US
dc.source.journalJournal of Space Weather and Space Climate
dc.relation.projectNorges forskningsråd: 230996
dc.relation.projectNorges forskningsråd: 212014
dc.relation.projectNorges forskningsråd: 230935
dc.relation.projectNorges forskningsråd: 223252
dc.relation.projectNorges forskningsråd: 267408

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