Statistical analysis on the ionospheric response over South American mid- and near high-latitudes during 70 intense geomagnetic storms occurred in the period of two decades

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dc.contributor.authorAbreu, Alessandro José de
dc.contributor.authorCorreia, Emilia
dc.contributor.authorJesus, Rodolfo de
dc.contributor.authorVenkatesh, Kavutarapu
dc.contributor.authorMacho, Eduardo Perez
dc.contributor.authorRoberto, Marisa
dc.contributor.authorFagundes, Paulo Roberto
dc.contributor.authorGende, Maurício Alfredo
dc.date.accessioned2025-02-27T15:02:26Z
dc.date.available2025-02-27T15:02:26Z
dc.date.issued22023
dc.description.abstractThe first-time statistical response of the positive and negative ionospheric storms phases using Vertical Total Electron Content (VTEC) measurements during 70 geomagnetic storms at near high- and mid-latitudes regions in the Antarctic and Argentine/Chilean sectors in the Southern hemisphere are investigated. The study covers the years between 1999 and 2018 of solar cycles 23 and 24, using the Dst ≤ −100 nT as a criterion for all 70 storms selected. Significant features of solar cycle, seasonal and local time of ionospheric storms are showed. Our results indicate that the occurrence of geomagnetic storms follows a pattern of solar activity dependence, and also indicate a predominance of positive and positive-negative phases during autumn, winter, and spring at mid-latitudes and winter at near high-latitudes. Negative and negative-positive phases occur during all seasons at near high- and mid-latitudes. In addition, positive phases occur more frequently during the daytime while the negative phases occur predominantly in nighttime. There is also a predominance of positive and positive-negative phases simultaneously at near high- and mid-latitudes in the Antarctic and Argentine/Chilean sectors. The percentages of occurrence of positive and positive-negative phases are of 50% and 19%, respectively, at mid-latitude and 60% and 22%, respectively, at near high-latitudes. Negative and negative-positive phases are below 9% at both latitudes.
dc.description.physical13 p.
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.uriCNPq (101411/2022–7; 442101/2018–0 and 306818/2019–1)) FAPESP (16/24970–7; 2019/05455–2)
dc.format.mimetypePDF
dc.identifier.affiliationInstituto Nacional de Pesquisas Espaciais
dc.identifier.affiliationInstituto Tecnológico de Aeronáutica
dc.identifier.affiliationPhysical Research Laboratory
dc.identifier.affiliationUniversidade Presbiteriana Mackenzie
dc.identifier.affiliationUniversidade do Vale do Paraíba
dc.identifier.affiliationFacultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata
dc.identifier.bibliographicCitationABREU, Alessandro José de et al. Statistical analysis on the ionospheric response over South American mid- and near high-latitudes during 70 intense geomagnetic storms occurred in the period of two decades. Journal of Atmospheric and Solar-Terrestrial Physics, v. 245, p. 1-13, 2023. Disponível em: https://linkinghub.elsevier.com/retrieve/pii/S1364682623000585.
dc.identifier.doi10.1016/j.jastp.2023.106060
dc.identifier.urihttps://repositorio.univap.br/handle/123456789/607
dc.language.isoen_US
dc.publisherElsevier
dc.rights.holderElsevier
dc.subject.keywordGeomagnetic storms
dc.subject.keywordHigh- and mid-latitudes
dc.subject.keywordIonospheric
dc.titleStatistical analysis on the ionospheric response over South American mid- and near high-latitudes during 70 intense geomagnetic storms occurred in the period of two decades
dc.typeArtigos de Periódicos

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