Morphology of the postsunset vortex in the equatorial ionospheric plasma drift

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dc.contributor.authorLee, Woo Kyoung
dc.contributor.authorKil, Hyosub
dc.contributor.authorKwak, Young-Sil
dc.contributor.authorPaxton, Larry J.
dc.date.accessioned2018-11-15T12:49:42Z
dc.date.available2018-11-15T12:49:42Z
dc.date.issued2014-12-09
dc.description.abstractThe postsunset vortex in the equatorial ionosphere exhibits clockwise plasma motions after sunset in longitude (time) and altitude coordinates when the equatorial ionosphere is viewed looking northward. We describe the typical morphology of the postsunset vortex using incoherent scatter radar observations at Jicamarca in Peru during the previous solar maximum (2000–2002). A pronounced vortical plasma motion appears around 1700 LT along with the onset of the prereversal enhancement (PRE). The center of this vortex is located near an altitude of 270 km. A smaller‐scale vortex also appears about 0.5 ~ 1 h later at higher altitudes. However, the morphology and occurrence time of this small vortex depend on the characteristics of the coherent backscatter region. We find that the earlier vortex is the major feature of the postsunset vortices because it is repeatable, associated with the PRE, and independent to the occurrence of the coherent backscatter region.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationLee, W. K., Kil, H., Kwak, Y.-S., & Paxton, L. J. (2014). Morphology of the postsunset vortex in the equatorial ionospheric plasma drift.==$Geophysical Research Letters, 42$==(1), 9-14. https://doi.org/10.1002/2014GL062019es_ES
dc.identifier.doihttps://doi.org/10.1002/2014GL062019es_ES
dc.identifier.journalGeophysical Research Letterses_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/3617
dc.language.isoenges_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.ispartofurn:issn:0094-8276
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectPostsunset vortexes_ES
dc.subjectZonal plasma driftes_ES
dc.subjectZonal shear flowes_ES
dc.subjectEquatorial spread Fes_ES
dc.subjectEquatorial ionospherees_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleMorphology of the postsunset vortex in the equatorial ionospheric plasma driftes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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