Solar Flare and Radio Burst Effects on GNSS Signals and the Ionosphere During September 2017

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Autor(es): dc.contributorINPE-
Autor(es): dc.contributorBoston College-
Autor(es): dc.contributorIAE-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorIFSP-
Autor(es): dc.contributorITA-
Autor(es): dc.creatorde Paula, Eurico R.-
Autor(es): dc.creatorMartinon, André R. F.-
Autor(es): dc.creatorCarrano, Charles-
Autor(es): dc.creatorMoraes, Alison O.-
Autor(es): dc.creatorNeri, José A. C. F.-
Autor(es): dc.creatorCecatto, José R.-
Autor(es): dc.creatorAbdu, Mangalathayil A.-
Autor(es): dc.creatorNeto, Acácio C.-
Autor(es): dc.creatorMonico, João F. G.-
Autor(es): dc.creatorda Costa Silva, Weverton-
Autor(es): dc.creatorVani, Bruno C.-
Autor(es): dc.creatorBatista, Inez S.-
Autor(es): dc.creatorMendes, Odim-
Autor(es): dc.creatorde Souza, Jonas R.-
Autor(es): dc.creatorSilva, André L. A.-
Data de aceite: dc.date.accessioned2025-08-21T21:00:30Z-
Data de disponibilização: dc.date.available2025-08-21T21:00:30Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1029/2021RS007418-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246269-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246269-
Descrição: dc.descriptionStrong solar flare events can occur even during the decay phase of the solar cycle. During these events concurrent increases in the X-ray and Enhanced UV (EUV) fluxes and solar radio bursts (SRBs) can be observed. The SRBs cover a large range of frequencies including the L band, giving rise to signal fades in the GNSS carrier-to-noise ratio and fluctuations in its amplitude and phase. The increases in the X-ray, UV, and EUV fluxes cause increase in the ionospheric D, E, and F region electron densities. The aim of this work is to analyze the effects in the GNSS signal, in the ionosphere and in the magnetic field H component of the X9.3 and X1.3 solar flares that occurred on 06 and 07 September 2017, respectively. Data from a network of six GNSS receivers, two magnetometers, and four Digisondes are used in the analysis. Fades of about 5 and 10 dB were observed in the signals of GNSS L1 and L2/L5 frequencies, respectively. Significant positioning errors, were observed for the strongest X9.3 flare. A sudden increase in Total Electron Content with the rates of 2.5–5.0 TECU/min was observed. An increase in the E layer density gave origin to an increase in the Equatorial Electrojet intensity, whose signatures were observed in the H component of two magnetometers. Another observed effect was the ionospheric D region density increase that caused disruption in the Digisonde signal. As a consequence of the described effects, GNSS receivers may fail to produce accurate navigation solution.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionINPE-
Descrição: dc.descriptionISR Boston College-
Descrição: dc.descriptionIAE-
Descrição: dc.descriptionCT/UNESP-
Descrição: dc.descriptionIFSP-
Descrição: dc.descriptionITA-
Descrição: dc.descriptionCT/UNESP-
Descrição: dc.descriptionFAPESP: 2018/23754-4-
Descrição: dc.descriptionCNPq: 302531/2019-0-
Idioma: dc.languageen-
Relação: dc.relationRadio Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGNSS signal fades-
Palavras-chave: dc.subjectpositioning errors-
Palavras-chave: dc.subjectsolar flare-
Palavras-chave: dc.subjectsolar radio burst-
Título: dc.titleSolar Flare and Radio Burst Effects on GNSS Signals and the Ionosphere During September 2017-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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