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dc.contributor.author Yizengaw, E.
dc.contributor.author Moldwin, M. B.
dc.contributor.author Zesta, E.
dc.contributor.author Biouele, C. M.
dc.contributor.author Damtie, B.
dc.contributor.author Mebrahtu, A.
dc.contributor.author Rabiu, B.
dc.contributor.author Valladares, C. F.
dc.contributor.author Stoneback, R.
dc.date.accessioned 2018-07-24T12:24:19Z
dc.date.available 2018-07-24T12:24:19Z
dc.date.issued 2014-03-13
dc.identifier.citation Yizengaw, E., Moldwin, M. B., Zesta, E., Biouele, C. M., Damtie, B., Mebrahtu, A., ... Stoneback, R. (2014). The longitudinal variability of equatorial electrojet and vertical drift velocity in the African and American sectors.==$Annales Geophysicae, 32$==(3), 231-238. https://doi.org/10.5194/angeo-32-231-2014 es_ES
dc.identifier.uri http://hdl.handle.net/20.500.12816/2046
dc.description.abstract While the formation of equatorial electrojet (EEJ) and its temporal variation is believed to be fairly well understood, the longitudinal variability at all local times is still unknown. This paper presents a case and statistical study of the longitudinal variability of dayside EEJ for all local times using ground-based observations. We found EEJ is stronger in the west American sector and decreases from west to east longitudinal sectors. We also confirm the presence of significant longitudinal difference in the dusk sector pre-reversal drift, using the ion velocity meter (IVM) instrument onboard the C/NOFS satellite, with stronger pre-reversal drift in the west American sector compared to the African sector. Previous satellite observations have shown that the African sector is home to stronger and year-round ionospheric bubbles/irregularities compared to the American and Asian sectors. This study’s results raises the question if the vertical drift, which is believed to be the main cause for the enhancement of Rayleigh–Taylor (RT) instability growth rate, is stronger in the American sector and weaker in the African sector – why are the occurrence and amplitude of equatorial irregularities stronger in the African sector? es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher European Geosciences Union (EGU) es_ES
dc.relation.ispartof urn:issn:0992-7689
dc.rights info:eu-repo/semantics/openAccess es_ES
dc.rights.uri https://creativecommons.org/licences/by/4.0/ es_ES
dc.subject Ionosphere es_ES
dc.subject Equatorial ionosphere es_ES
dc.subject Ionospheric irregularities es_ES
dc.title The longitudinal variability of equatorial electrojet and vertical drift velocity in the African and American sectors es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#1.05.01 es_ES
dc.identifier.journal Annales Geophysicae es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi https://doi.org/10.5194/angeo-32-231-2014 es_ES

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