Mostrar el registro sencillo del ítem Santos, A. M. Abdu, M. A. Souza, J. R. Sobral, J. H. A. Batista, I. S. Denardini, C. M. 2018-11-20T20:04:23Z 2018-11-20T20:04:23Z 2016-05-18
dc.identifier.citation Santos, A. M., Abdu, M. A., Souza, J. R., Sobral, J. H. A., Batista, I. S., & Denardini, C. M. (2016). Storm time equatorial plasma bubble zonal drift reversal due to disturbance Hall electric field over the Brazilian region.==$Journal of Geophysical Research: Space Physics, 121$==(6), 5594-5612. es_ES
dc.description.abstract The dynamics of equatorial ionospheric plasma bubbles over Brazilian sector during two magnetic storm events are investigated in this work. The observations were made at varying phases of magnetic disturbances when the bubble zonal drift velocity was found to reverse westward from its normally eastward velocity. Calculation of the zonal drift based on a realistic low‐latitude ionosphere modeled by the Sheffield University Plasmasphere‐Ionosphere Model showed on a quantitative basis a clear competition between vertical Hall electric field and disturbance zonal winds on the variations observed in the zonal velocity of the plasma bubble. The Hall electric field arising from enhanced ratio of field line‐integrated conductivities, ΣH/ΣP, is most often generated by an increase in the integrated Hall conductivity, arising from enhanced energetic particle precipitation in the South American Magnetic Anomaly region for which evidence is provided from observation of anomalous sporadic E layers over Cachoeira Paulista and Fortaleza. Such sporadic E layers are also by themselves evidence for the development of the Hall electric field that modifies the zonal drift. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Geophysical Union es_ES
dc.relation.ispartof urn:issn:2169-9380
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Equatorial plasma bubble es_ES
dc.subject Ionospheric irregularities es_ES
dc.subject Particle precipitation es_ES
dc.subject Electric field es_ES
dc.subject Ionospheric plasma drifts es_ES
dc.subject Magnetic storms es_ES
dc.title Storm time equatorial plasma bubble zonal drift reversal due to disturbance Hall electric field over the Brazilian region es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde es_ES
dc.identifier.journal Journal of Geophysical Research: Space Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi es_ES




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