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dc.contributor.authorOksavik, Kjellmar
dc.contributor.authorvan der Meeren, Christer
dc.contributor.authorLorentzen, Dag Arne
dc.contributor.authorBaddeley, Lisa
dc.contributor.authorMoen, Jøran Idar
dc.PublishedJournal of Geophysical Research - Space Physics 2015, 120:9161-9175eng
dc.description.abstractWe present two examples from the cusp ionosphere over Svalbard, where poleward moving auroral forms (PMAFs) are causing significant phase scintillation in signals from navigation satellites. The data were obtained using a combination of ground-based optical instruments and a newly installed multiconstellation navigation signal receiver at Longyearbyen. Both events affected signals from GPS and Global Navigation Satellite System (GLONASS). When one intense PMAF appeared, the signal from one GPS spacecraft also experienced a temporary loss of signal lock. Although several polar cap patches were also observed in the area as enhancements in total electron content, the most severe scintillation and loss of signal lock appear to be attributed to very intense PMAF activity. This shows that PMAFs are locations of strong ionospheric irregularities, which at times may cause more severe disturbances in the cusp ionosphere for navigation signals than polar cap patches.en_US
dc.relation.ispartof<a href="" target="blank">Mesoscale ionospheric plasma irregularities and scintillation over Svalbard</a>en_US
dc.rightsAttribution CC BY-NC-NDeng
dc.titleScintillation and loss of signal lock from poleward moving auroral forms in the cusp ionosphereen_US
dc.typeJournal article
dc.rights.holderCopyright 2015 the authorsen_US
dc.relation.projectNorges forskningsråd: 212014
dc.relation.projectNorges forskningsråd: 230935
dc.relation.projectNorges forskningsråd: 223252

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