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dc.contributor.author Abdu, M. A.
dc.contributor.author Souza, J. R.
dc.contributor.author Batista, I. S.
dc.contributor.author Fejer, B. G.
dc.contributor.author Sobral, J. H. A.
dc.date.accessioned 2018-11-13T12:06:29Z
dc.date.available 2018-11-13T12:06:29Z
dc.date.issued 2013-04-11
dc.identifier.citation Abdu, M. A., Souza, J. R., Batista, I. S., Fejer, B. G., & Sobral, J. H. A. (2013). Sporadic E layer development and disruption at low latitudes by prompt penetration electric fields during magnetic storms.==$Journal of Geophysical Research: Space Physics, 118$==(5), 2639-2647. https://doi.org/10.1002/jgra.50271 es_ES
dc.identifier.uri http://hdl.handle.net/20.500.12816/3547
dc.description.abstract An investigation of low‐latitude sporadic E layers during magnetic storms shows that the formation and disruption of these layers are strongly controlled by the magnetospheric electric fields that penetrate to equatorial ionosphere. It is observed that a prompt penetration electric field (PPEF) of westward polarity that dominates the nightside ionosphere can cause formation of sporadic E layers near 100 km, while a PPEF of eastward polarity that dominates the dayside and eveningside can lead to disruption of an Es layer in progress. It is shown that a vertical Hall electric field, induced by the primary zonal PPEF, in the presence of the storm‐associated enhanced conductivity of the night E layer, can be responsible for vertical ion velocity convergence sufficient to influence the Es layer formation. A downward polarity of the Hall electric field leads to Es layer formation, while an upward polarity causes the Es layer disruption. An interplay of magnetic storm associated prompt penetration electric field and energetic particle precipitation is evident in the observed Es layer response features in the region of the South Atlantic/American magnetic anomaly reported here. 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 ionosphere es_ES
dc.subject Sporadic E layer es_ES
dc.subject Penetration electric fields es_ES
dc.subject Magnetic storms es_ES
dc.subject Conductivity ratio es_ES
dc.subject Particle precipitation es_ES
dc.title Sporadic E layer development and disruption at low latitudes by prompt penetration electric fields during magnetic storms 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 Journal of Geophysical Research: Space Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi https://doi.org/10.1002/jgra.50271 es_ES

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