On the origin of pre-reversal enhancement of the zonal equatorial electric field

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dc.contributor.authorKelley, M. C.
dc.contributor.authorIlma, R. R.
dc.contributor.authorCrowley, G.
dc.date.accessioned2018-11-05T16:23:06Z
dc.date.available2018-11-05T16:23:06Z
dc.date.issued2009-05-05
dc.description.abstractIn November 2004, a large and variable interplanetary electric field (IEF) was felt in the reference frame of the Earth. This electric field penetrated to the magnetic equator and, when the Jicamarca Radio Observatory (JRO) was in the dusk sector, resulted in a reversal of the normal zonal component of the field. In turn, this caused a counter-electrojet (CEJ), a westward current rather than the usual eastward current. At the time of the normal pre-reversal enhancement (PRE) of the eastward field, the Jicamarca incoherent scatter radar (ISR) observed that the westward component became even more westward. Two of the three current explanations for the PRE depend on the neutral wind patterns. However, this unique event was such that the neutral wind-driven dynamos could not have changed. The implication is that the Haerendel-Eccles mechanism, which involves partial closure of the equatorial electrojet (EEJ) after sunset, must be the dominant mechanism for the PRE.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationKelley, M. C., Ilma, R. R., & Crowley, G. (2009). On the origin of pre-reversal enhancement of the zonal equatorial electric field.==$Annales Geophysicae, 27$==(5), 2053-2056. https://doi.org/10.5194/angeo-27-2053-2009es_ES
dc.identifier.doihttps://doi.org/10.5194/angeo-27-2053-2009es_ES
dc.identifier.journalAnnales Geophysicaees_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/3289
dc.language.isoenges_ES
dc.publisherEuropean Geosciences Uniones_ES
dc.relation.ispartofurn:issn:0992-7689
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectIonospherees_ES
dc.subjectEquatorial ionospherees_ES
dc.subjectIonospheric irregularitieses_ES
dc.subjectModeling and forecastinges_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleOn the origin of pre-reversal enhancement of the zonal equatorial electric fieldes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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