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dc.contributor.authorKatamzi Joseph, Zama Thobeka
dc.contributor.authorHabarulema, John Bosco
dc.contributor.authorHernández Pajares, Manuel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtiques
dc.date.accessioned2018-03-12T08:17:10Z
dc.date.available2018-03-12T08:17:10Z
dc.date.issued2017-09
dc.identifier.citationKatamzi, Z., Habarulema, J., Hernandez, M. Midlatitude postsunset plasma bubbles observed over Europe during intense storms in April 2000 and 2001. "Space weather: the international journal of research and applications", Setembre 2017, vol. 15, núm. 9, p. 1177-1190.
dc.identifier.issn1542-7390
dc.identifier.urihttp://hdl.handle.net/2117/115052
dc.description.abstractPlasma bubbles are prevalent features of the equatorial/low-latitude ionosphere which are seldom observed at middle and high latitudes. Understanding the influence of geomagnetic storms on plasma bubbles' migration to higher latitudes is an important space weather topic, since a geomagnetic storm is an important phenomenon of space weather. This paper reports on the first observations of postsunset/evening midlatitude plasma bubbles in the European sector during the main phase of severe storms (Dst=-200 nT) on 6 April 2000 and 11 April 2001. Plasma depletions observed in Global Navigation Satellite System total electron content measurements are confirmed with those observed from in situ Defense Meteorological Satellite Program ion density measurements. The results show that the plasma bubbles were migrating north at virtual speeds of 400 m/s and on each of the storm days they extended as far north as ~42° (geographic latitude). It is estimated that the plasma bubbles may have grown to a maximum apex height of approximately 4000 km. During the time of bubble occurrence, the evening midlatitude plasma was enhanced and the equatorial ionization anomaly extended to European midlatitudes. In addition, evidence of the upward plasma motion was found in ionosonde hmF2 and h'F measurements, while the interplanetary electric field Ey was enhanced. This was found to suggest that the possible mechanism for the enhancement of midlatitude plasma and subsequent midlatitude plasma bubbles occurrence was the eastward penetration electric field associated with Bz southward turning.
dc.format.extent14 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències
dc.subject.lcshIonosphere
dc.subject.otherGeomagnetic storm
dc.subject.otherMidlatitude ionosphere
dc.subject.otherPlasma bubbles
dc.subject.otherPPEF
dc.titleMidlatitude postsunset plasma bubbles observed over Europe during intense storms in April 2000 and 2001
dc.typeArticle
dc.subject.lemacIonosfera
dc.contributor.groupUniversitat Politècnica de Catalunya. IonSAT - Grup de determinació Ionosfèrica i navegació per SAtèl·lit i sistemes Terrestres
dc.identifier.doi10.1002/2017SW001674
dc.description.peerreviewedPeer Reviewed
dc.subject.amsClassificació AMS::85 Astronomy and astrophysics
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1002/2017SW001674/pdf
dc.rights.accessOpen Access
local.identifier.drac21566874
dc.description.versionPostprint (published version)
local.citation.authorKatamzi, Z.; Habarulema, J.; Hernandez, M.
local.citation.publicationNameSpace weather: the international journal of research and applications
local.citation.volume15
local.citation.number9
local.citation.startingPage1177
local.citation.endingPage1190


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