Mostrar el registro sencillo del ítem Paznukhov, V. V. Reinisch, B. W. Song, P. Huang, X. Bullet, T. W. Veliz, Oscar 2018-07-18T15:22:47Z 2018-07-18T15:22:47Z 2007-07
dc.identifier.citation Paznukhov, V. V., Reinisch, B. W., Song, P., Huang, X., Bullet, T. W., & Veliz, O. (2007). Formation of an F3 layer in the equatorial ionosphere: A result from strong IMF changes.==$Journal of Atmospheric and Solar-Terrestrial Physics, 69$==(10-11), 1292-1304. es_ES
dc.identifier.govdoc index-oti2018
dc.description.abstract We analyzed ionospheric observations made with digisondes in Jicamarca, Ramey, Wallops Island, Ascension Island, and Kwajalein Island during the major magnetic storm of November 9–10, 2004, which was associated with rapid interplanetary magnetic field (IMF) Bz changes. The strongest ionospheric responses to the southward IMF Bz turning were observed at the dip equator at Jicamarca where during the magnetic disturbance a dramatic F2 peak density depletion occurred at around 15:00 local time, accompanied by a fast upward motion of the plasma. In this process, an additional ionospheric layer, the F3 layer, formed with peak densities NmF3 exceeding NmF2. This observation may be considered evidence of an equatorial plasma fountain enhancement caused by the magnetic field disturbance. Responses were observed in a large range of latitudes and local times. The best indicator of the responses appears to be the peak height of the F layer, since competing processes determine the peak densities. The observed responses at low latitude locations in the morning and dusk sectors pose challenges to the simple penetrating electric field model because the upward motion is inconsistent with the E×B drift associated with a dawn–dusk electric field. Clear responses in the Jicamarca local time sector occurred at latitudes as high as 28, at Ramey, Puerto Rico. This latitude range appears to be beyond the range of the flux tube corresponding to the 900 km F3 layer peak height at Jicamarca, indicating a more extended uplifting of flux tubes. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof urn:issn:1364-6826
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject F3 layer es_ES
dc.subject Equatorial plasma fountain es_ES
dc.subject Electron density profiles es_ES
dc.subject Digisonde es_ES
dc.subject Space weather es_ES
dc.title Formation of an F3 layer in the equatorial ionosphere: A result from strong IMF changes es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde es_ES
dc.identifier.journal Journal of Atmospheric and Solar-Terrestrial Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi es_ES




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