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dc.date.accessioned2019-01-07T16:38:12Z
dc.date.available2019-01-07T16:38:12Z
dc.date.created2018-08-07T10:38:02Z
dc.date.issued2018
dc.identifier.citationWang, Yong Zhang, Q. H. Jayachandran, P.T. Moen, Jøran Idar Xing, ZY Chadwick, Ruth Ma, Y.-Z. Ruohoniemi, J. M. Lester, M. . Experimental Evidence on the Dependence of the Standard GPS Phase Scintillation Index on the Ionospheric Plasma Drift Around Noon Sector of the Polar Ionosphere. Journal of Geophysical Research - Space Physics. 2018, 123(3), 2370-2378
dc.identifier.urihttp://hdl.handle.net/10852/66078
dc.description.abstractFirst experimental proof of a clear and strong dependence of the standard phase scintillation index (σφ) derived using Global Positioning System measurements on the ionospheric plasma flow around the noon sector of polar ionosphere is presented. σφ shows a strong linear dependence on the plasma drift speed measured by the Super Dual Auroral Radar Network radars, whereas the amplitude scintillation index (S4) does not. This observed dependence can be explained as a consequence of Fresnel frequency dependence of the relative drift and the used constant cutoff frequency (0.1 Hz) to detrend the data for obtaining standard σφ. The lack of dependence of S4 on the drift speed possibly eliminates the plasma instability mechanism(s) involved as a cause of the dependence. These observations further confirm that the standard phase scintillation index is much more sensitive to plasma flow; therefore, utmost care must be taken when identifying phase scintillation (diffractive phase variations) from refractive (deterministic) phase variations, especially in the polar region where the ionospheric plasma drift is much larger than in equatorial and midlatitude regions. © 2018 American Geophysical Unionen_US
dc.languageEN
dc.publisherAmerican Geopgysical Union (AGU)
dc.titleExperimental Evidence on the Dependence of the Standard GPS Phase Scintillation Index on the Ionospheric Plasma Drift Around Noon Sector of the Polar Ionosphereen_US
dc.title.alternativeENEngelskEnglishExperimental Evidence on the Dependence of the Standard GPS Phase Scintillation Index on the Ionospheric Plasma Drift Around Noon Sector of the Polar Ionosphere
dc.typeJournal articleen_US
dc.creator.authorWang, Yong
dc.creator.authorZhang, Q. H.
dc.creator.authorJayachandran, P.T.
dc.creator.authorMoen, Jøran Idar
dc.creator.authorXing, ZY
dc.creator.authorChadwick, Ruth
dc.creator.authorMa, Y.-Z.
dc.creator.authorRuohoniemi, J. M.
dc.creator.authorLester, M.
cristin.unitcode185,15,4,0
cristin.unitnameFysisk institutt
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1600122
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Geophysical Research - Space Physics&rft.volume=123&rft.spage=2370&rft.date=2018
dc.identifier.jtitleJournal of Geophysical Research - Space Physics
dc.identifier.volume123
dc.identifier.issue3
dc.identifier.startpage2370
dc.identifier.endpage2378
dc.identifier.doihttp://dx.doi.org/10.1002/2017JA024805
dc.identifier.urnURN:NBN:no-68584
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn2169-9380
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/66078/2/1600122.pdf
dc.type.versionPublishedVersion


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