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STUDY OF THE IONOSPHERE VARIABILITY IN THE EQUATORIAL REGION, LOW AND MID LATITUDES AS FUNCTION OF LONGITUDE, USING EXPERIMENTAL DATA IN THE BRAZILIAN AND AFRICAN SECTORS

Grant number: 19/09361-2
Support Opportunities:Regular Research Grants
Duration: August 01, 2019 - July 31, 2022
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geophysics
Principal Investigator:Paulo Roberto Fagundes
Grantee:Paulo Roberto Fagundes
Host Institution: Instituto de Pesquisa e Desenvolvimento (IP&D). Universidade do Vale do Paraíba (UNIVAP). São José dos Campos , SP, Brazil

Abstract

The main objective of this project is study the differences and similarities of the day-to day variability of the ionosphere and the thermosphere-ionosphere coupling during quiet and disturbed geomagnetic conditions, using experimental data of GPS-TEC and ionosondes in the Brazilian and African sectors. The topics that will be study are ionosphere response due to solar "Flare" and geomagnetic storm, the generation, evolution, and electrodynamics of ionospheric irregularities of mid and large scale, and the day-to-day, seasonal variability of the equatorial ionization anomaly (EIA), as function of solar cycle. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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Scientific publications (6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
TARDELLI, A.; FAGUNDES, P. R.; PEZZOPANE, M.; PILLAT, V. G.. Longitudinal variations of the occurrence of F3 and F4 layers within the southern EIA and their dependence on solar cycle. Advances in Space Research, v. 69, n. 1, p. 59-70, . (18/09879-9, 19/09361-2)
AGYEI-YEBOAH, EBENEZER; FAGUNDES, PAULO ROBERTO; TARDELLI, ALEXANDRE; PILLAT, VALDIR GIL; VIEIRA, FRANCISCO; ARCANJO, MATEUS DE OLIVEIRA. Occurrence of Ionospheric irregularities over Brazil and Africa during the 2019 Antarctic minor sudden stratospheric warming. Advances in Space Research, v. 71, n. 1, p. 23-pg., . (19/09361-2)
FAGUNDES, P. R.; PEZZOPANE, M.; HABARULEMA, J. B.; VENKATESH, K.; DIAS, M. A. L.; TARDELLI, A.; DE ABREU, A. J.; PILLAT, V. G.; PIGNALBERI, A.; BOLZAN, M. J. A.; et al. Ionospheric disturbances in a large area of the terrestrial globe by two strong solar flares of September 6, 2017, the strongest space weather events in the last decade. Advances in Space Research, v. 66, n. 7, p. 1775-1791, . (19/09361-2)
RESENDE, L. C. A.; ZHU, Y.; DENARDINI, C. M.; BATISTA, I. S.; SHI, J.; MORO, J.; CHEN, S. S.; CONCEICAO-SANTOS, F.; DA SILVA, L. A.; ANDRIOLI, V. F.; et al. New Findings of the Sporadic E (Es) Layer Development Around the Magnetic Equator During a High-Speed Solar (HSS) Wind Stream Event. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 126, n. 9, . (12/08445-9, 19/09361-2)
FAGUNDES, PR.; TSALI-BROWN, VY.; PILLAT, VG.; ARCANJO, MO.; VENKATESH, K.; HABARULEMA, JB.; BOLZAN, M. J. A.; DE JESUS, R.; DE ABREU, A. J.; TARDELLI, A.; et al. Ionospheric storm due to solar Coronal mass ejection in September 2017 over the Brazilian and African longitudes. Advances in Space Research, v. 71, n. 1, p. 21-pg., . (18/10679-4, 19/09361-2, 16/22634-0)
VIEIRA, F.; FAGUNDES, P. R.; PILLAT, V. G.; AGYEI-YEBOAH, E.; VENKATESH, K.; ARCANJO, M. O.. Ionospheric disturbances over the American and African sectors due to the 2019 major Sudden Stratospheric Warming (SSW 2019), under low solar activity conditions. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 240, p. 16-pg., . (18/10679-4, 19/09361-2)

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