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dc.contributor.author Hei, Matthew A.
dc.contributor.author Valladares, Cesar E.
dc.date.accessioned 2018-11-07T10:11:55Z
dc.date.available 2018-11-07T10:11:55Z
dc.date.issued 2009-04-07
dc.identifier.issn 1364-6826
dc.identifier.uri http://repositorio.igp.gob.pe/handle/IGP/3364
dc.description.abstract "We investigate the effects of penetration electric fields, meridional thermospheric neutral winds, and composition perturbation zones (CPZs) on the distribution of low-latitude plasma during the 7–11 November 2004 geomagnetic superstorm. The impact on low-latitude plasma was assessed using total electron content (TEC) measurements from a latitudinally distributed array of ground-based GPS receivers in South America. Jicamarca Radio Observatory incoherent scatter radar measurements of vertical E×B drift are used in combination with the Low-Latitude IONospheric Sector (LLIONS) model to examine how penetration electric fields and meridional neutral winds shape low-latitude TEC. It is found that superfountain conditions pertain between ∼1900 and 2100 UT on 9 November, creating enhanced equatorial ionization anomaly (EIA) crests at ±20° geomagnetic latitude. Large-amplitude and/or long-duration changes in the electric field were found to produce significant changes in EIA plasma density and latitudinal location, with a delay time of ∼2–2.5 h. Superfountain drifts were primarily responsible for EIA TEC levels; meridional winds were needed only to create hemispherical crest TEC asymmetries. The [O/N2] density ratio (derived from the GUVI instrument, flown on the TIMED satellite) and measurements of total atmospheric density (from the GRACE satellites), combined with TEC measurements, yield information regarding a likely CPZ that appeared on 10 November, suppressing TEC for over 16 h.". es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Journal of Atmospheric and Solar-Terrestrial Physics es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.rights.uri http://creativecommons.org/licences/restrictedAccess es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Tormentas magnéticas es_ES
dc.subject Campos eléctricos es_ES
dc.subject Plasma (Gases ionizados) es_ES
dc.subject Latitud es_ES
dc.subject Sistema de posicionamiento global es_ES
dc.subject Radar de dispersión incoherente es_ES
dc.subject Radio Observatorio de Jicamarca es_ES
dc.subject Radar--Perú--Mediciones es_ES
dc.subject Satélites artificiales es_ES
dc.subject Densidad del plasma es_ES
dc.subject Ionósfera--Investigación es_ES
dc.subject Ionósfera--Observaciones es_ES
dc.subject Física atmosférica es_ES
dc.title The November 2004 superstorm: Comparison of low-latitude TEC observations with LLIONS model results es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Atmósfera es_ES
dc.subject.ocde Observación es_ES
dc.subject.ocde Radar es_ES
dc.subject.ocde Medición es_ES
dc.subject.ocde Viento es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Modelos es_ES
dc.subject.ocde Geofísica 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 10.1016/j.jastp.2009.03.025 es_ES

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