Ionosphere D-layer lowering in the region of the South Atlantic Magnetic Anomaly

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dc.contributor.authorMagalhaes A.A.S.
dc.contributor.authorGuerche G.
dc.contributor.authorRaulin J.-P.
dc.date.accessioned2024-03-12T23:50:57Z
dc.date.available2024-03-12T23:50:57Z
dc.date.issued2019
dc.description.abstract© 2019 Elsevier LtdIn this paper we analyse the effects of 25 solar flare events over long VLF propagation paths, one of them with the very remarkable property of crossing nearly the centre with the lowest magnetic field intensity in the South Atlantic Magnetic Anomaly (SAMA). The phase of the VLF transmitter signal (NPM: 21.4 kHz) on Lualualei, Hawaii, was recorded at the stations Punta Lobos (PLO, Peru) and Atibaia (ATI, Brazil) between 2007 March and 2011 September. Both paths NPM-PLO and NPM-ATI are collinear, and the comparison of the recorded phases suggests a descent of the lower ionosphere quiescent reflection height, possibly associated with the weakening of the Earth magnetic field in the SAMA region.
dc.description.volume196
dc.identifier.doi10.1016/j.jastp.2019.105146
dc.identifier.issn1364-6826
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35148
dc.relation.ispartofJournal of Atmospheric and Solar-Terrestrial Physics
dc.rightsAcesso Restrito
dc.titleIonosphere D-layer lowering in the region of the South Atlantic Magnetic Anomaly
dc.typeArtigo
local.scopus.citations0
local.scopus.eid2-s2.0-85073270504
local.scopus.subjectEarth magnetic fields
local.scopus.subjectLower ionosphere
local.scopus.subjectMagnetic-field intensity
local.scopus.subjectSolar flare
local.scopus.subjectSouth Atlantic magnetic anomaly
local.scopus.subjectTransmitter signals
local.scopus.subjectVLF propagation
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85073270504&origin=inward
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