Show simple item record

dc.contributor.authorIvarsen, Magnus Fagernes
dc.contributor.authorLozinsky, Adam
dc.contributor.authorSt-Maurice, Jean-Pierre
dc.contributor.authorSpicher, Andres
dc.contributor.authorHuyghebaert, Devin Ray
dc.contributor.authorHussey, Glenn C.
dc.contributor.authorGaleschuk, Draven
dc.contributor.authorPitzel, Brian
dc.contributor.authorVierinen, Juha
dc.date.accessioned2024-02-19T10:08:41Z
dc.date.available2024-02-19T10:08:41Z
dc.date.issued2023-04-16
dc.description.abstractWe associate new data from icebear, a coherent scatter radar located in Saskatchewan, Canada, with scale-dependent physics in the ionosphere. We subject the large-scale icebear 3D echo patterns (treated as 2D point clouds) to a data analysis technique hitherto never applied to the ionosphere, a technique that is widely applied in cosmological red-shift surveys to characterize the spatial clustering of galaxies. The technique results in a novel method to calculate the spatial power spectral density of the greater ionospheric irregularity field. We compare results from this method to in-situ plasma density and magnetic field observations from the Swarm mission. We show that there is a remarkable similarity between echo clustering spectra in the E-region and the field-aligned current structuring spectrum observed in the F-region: a clear and characteristic preferred scale (5 km) both in the E- and F-region spectra. We discuss the possibility that this represents evidence of an energy injection into the ionospheric irregularity field via energetic particle precipitation, but offer alternative interpretations with wider connotations for the ionosphere-magnetosphere system. These findings open new and promising avenues of research for the study of the location of ionospheric scatter echoes with 3D information. It constitutes a novel way to consider the pattern of ionospheric irregularities over wide fields of view when there is an abundance of radar echoes, which allows for the analysis of radar data as point clouds.en_US
dc.identifier.citationIvarsen, Lozinsky, St-Maurice, Spicher, Huyghebaert, Hussey, Galeschuk, Pitzel, Vierinen. The Distribution of Small-Scale Irregularities in the E-Region, and Its Tendency to Match the Spectrum of Field-Aligned Current Structures in the F-Region. Journal of Geophysical Research (JGR): Space Physics. 2023;128(5)en_US
dc.identifier.cristinIDFRIDAID 2156215
dc.identifier.doi10.1029/2022JA031233
dc.identifier.issn2169-9380
dc.identifier.issn2169-9402
dc.identifier.urihttps://hdl.handle.net/10037/32971
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalJournal of Geophysical Research (JGR): Space Physics
dc.relation.projectIDNorges forskningsråd: 326039en_US
dc.relation.projectIDNorges forskningsråd: 245683en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holder© 2023. American Geophysical Union. All Rights Reserved.en_US
dc.titleThe Distribution of Small-Scale Irregularities in the E-Region, and Its Tendency to Match the Spectrum of Field-Aligned Current Structures in the F-Regionen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


File(s) in this item

Thumbnail

This item appears in the following collection(s)

Show simple item record