Mostrar el registro sencillo del ítem Zakharenkova, Irina Astafyeva, Elvira Cherniak, Iurii 2018-11-16T17:11:48Z 2018-11-16T17:11:48Z 2015-09-09
dc.identifier.issn 2169-9402
dc.description.abstract "We present observations of the equatorial plasma bubbles (EPB) in the topside ionosphere at early morning hours (05–08 LT) in the recovery phase of the 18–19 February 2014 geomagnetic storm. This rare type of irregularities was detected in the Pacific sector using GPS measurements on board several low‐Earth‐orbit (LEO) satellites. We use a multisatellite constellation consisted of the three Swarm and one TerraSAR‐X satellites, that on 19 February flew in the same region and at similar altitudes ~500 km. The EPB occurrence in the LEO GPS data was observed for several consecutive orbits from ~11 UT to 16–17 UT on 19 February 2014, which suggests the following: (1) rather long duration (hours) of favorable conditions for EPB generation, (2) formation and evolution of EPB over wide longitude range of the Pacific Ocean, and (3) possible movement of the EPB region in the westward direction (with dawn). Registration of the early morning EPB in LEO GPS data was supported by concurrent in situ (Swarm and DMSP (Defense Meteorological Satellite Program)) and ground‐based (ionosonde and GPS) measurements. LEO‐based GPS technique is found to be essential and promising data source to study the topside EPB over regions with lack of the ground‐based facilities. In addition, we use the Prompt Penetration Model and the Thermosphere‐Ionosphere Electrodynamics Global Circulation Model (TIE‐GCM) to identify the possible mechanisms responsible for the observed phenomenon. The model simulation results indicate the occurrence of the zone with the enhanced vertical plasma drift (~40–45 m/s) owing to the disturbance dynamo action in the predawn/dawn sector during 09–17 UT". es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Journal of Geophysical Research: Space Physics es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.rights.uri es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Plasma (Gases ionizados) es_ES
dc.subject Burbujas--Dinámica es_ES
dc.subject Ionósfera--Observaciones es_ES
dc.subject Ionósfera--Investigación es_ES
dc.subject Sistema de posicionamiento global es_ES
dc.subject Tormentas magnéticas es_ES
dc.subject Satélites artificiales es_ES
dc.subject Dinámica del plasma es_ES
dc.subject Ionosondas es_ES
dc.subject Radar--Mediciones es_ES
dc.subject Radar--Observaciones es_ES
dc.subject Física atmosférica es_ES
dc.title Early morning irregularities detected with spaceborne GPS measurements in the topside ionosphere: A multisatellite case study 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 Tormentas es_ES
dc.subject.ocde Modelos es_ES
dc.subject.ocde Geofísica es_ES
dc.subject.ocde Ciencias espaciales es_ES
dc.identifier.journal Journal of Geophysical Research: Space Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1002/2015JA021447 es_ES




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