Evidence of Unusually Strong Equatorial Ionization Anomaly at Three Local Time Sectors During the Mother's Day Geomagnetic Storm On 10-11 May 2024

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dc.contributor.authorRout, Diptiranjan
dc.contributor.authorKumar, Ankit
dc.contributor.authorSingh, Ram
dc.contributor.authorPatra, Swadesh
dc.contributor.authorKaran, Deepak K.
dc.contributor.authorChakraborty, Shibaji
dc.contributor.authorScipion, Danny
dc.contributor.authorChakrabarty, Dibyendu
dc.contributor.authorRiccobono, Juanita
dc.date.accessioned2025-08-15T18:14:39Z
dc.date.available2025-08-15T18:14:39Z
dc.date.issued22025
dc.description.abstractThis study uses multiple ground and satellite‐based measurements to investigate the extreme ionospheric response to the Mother's Day storm on May 10–11, 2024. Prompt penetration electric field caused a significant enhancement in the ionospheric vertical drift (∼ 95 m/s) and the equatorial electrojet strength (∼275 nT) over Jicamarca. These extreme eastward electric field perturbations, along with the large meridional wind, significantly altered the F‐region plasma fountain at different local times. The afternoon equatorial ionization anomaly (EIA) not only sustained for an exceptionally long duration (∼ 12 hr) but also expanded spatially over time. The separation between the two peaks of EIA crests exceeded ∼48° and ∼70° in the morning and evening sectors, respectively. This study shows, for the first time, that unusually strong EIA can not only develop at different local times but can also sustain for long duration under favorable conditions, which has implications for space weather applications.
dc.description.physical10 p.
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.uriFAPESP (2024/08,104–4) CNPq (311840/2022‐1)
dc.format.mimetypePDF
dc.identifier.affiliationNational Atmospheric Research Laboratory
dc.identifier.affiliationUniversidade do Vale do Paraíba
dc.identifier.affiliationPhysical Research Laboratory
dc.identifier.affiliationRadio Observatorio de Jicamarca
dc.identifier.affiliationUniversity of New Brunswick
dc.identifier.affiliationUniversity of Colorado
dc.identifier.affiliationEmbry‐Riddle Aeronautical University
dc.identifier.affiliationComputational Physics
dc.identifier.bibliographicCitationROUT, D. et al. Evidence of Unusually Strong Equatorial Ionization Anomaly at Three Local Time Sectors During the Mother's Day Geomagnetic Storm On 10–11 May 2024. Geophysical Research Letters, v. 52, n. 2, p. 1-10, 2025. Disponível em: 10.1029/2024GL111269.
dc.identifier.doi10.1029/2024GL111269
dc.identifier.urihttps://repositorio.univap.br/handle/123456789/1022
dc.language.isoen_US
dc.publisherAdvancing Earth and Space Sciences
dc.rights.holderGeophysical Research Letters
dc.subject.keywordPlasma fountain
dc.subject.keywordAuroral region
dc.titleEvidence of Unusually Strong Equatorial Ionization Anomaly at Three Local Time Sectors During the Mother's Day Geomagnetic Storm On 10-11 May 2024
dc.typeArtigos de Periódicos

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