Polarization jet events and excitation of weak SAR arcs

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dc.citation.firstpage1586
dc.citation.issueNumber12
dc.citation.journalTitleGeophysical Research Letters
dc.citation.volumeNumber29
dc.contributor.authorSazykin, Stanislav
dc.contributor.authorFejer, B.G.
dc.contributor.authorGalperin, Y.I.
dc.contributor.authorZinin, L.V.
dc.contributor.authorGrigoriev, S.A.
dc.contributor.authorMendillo, M
dc.contributor.orgRice Space Institute
dc.contributor.publisherAmerican Geophysical Union
dc.date.accessioned2015-06-18T06:43:11Z
dc.date.available2015-06-18T06:43:11Z
dc.date.issued2002
dc.description.abstractPolarization Jet (PJ), also known as Sub-Auroral Ion Drift (SAID), events are supersonic westward plasma drifts on the equatorward edge of the diffuse aurora in the evening and nighttime sector. Their optical F-region signatures are weak 630.0 nm red arcs colocated with regions of fast convection. These weak arcs resemble Stable Auroral Red (SAR) arcs observed during the recovery phase of magnetic storms, but have lower intensities, shorter lifetimes, and occur without a significant heat flux from the magnetosphere. Previous model studies underestimated the brightness of weak SAR arcs. We present calculations showing that ion-neutral collisional heating and ion composition changes during PJ events may be an additional source of 630.0 nm emission, and propose experimental tests that could verify our modeling results.
dc.identifier.citationSazykin, Stanislav, Fejer, B.G., Galperin, Y.I., et al.. "Polarization jet events and excitation of weak SAR arcs." <i>Geophysical Research Letters,</i> 29, no. 12 (2002) 1586. http://dx.doi.org/10.1029/2001GL014388.
dc.identifier.doihttp://dx.doi.org/10.1029/2001GL014388
dc.identifier.grantIDNAG5-8638 (NASA)
dc.identifier.urihttps://hdl.handle.net/1911/80767
dc.language.isoeng
dc.relation.urihttp://onlinelibrary.wiley.com/doi/10.1029/2001GL014388/abstract
dc.subject.keywordairglow and aurora
dc.subject.keywordmodeling and forecasting
dc.subject.keywordionosphere-magnetosphere interactions
dc.subject.keywordmidlatitude ionosphere
dc.subject.keywordelectric fields
dc.titlePolarization jet events and excitation of weak SAR arcs
dc.typeJournal article
dc.type.dcmiText
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