The global study of the diurnal, day-to-day, and seasonal variability of the ionospheric electrodynamics as a function of the solar cycle, during geomagnetically calm and disturbed periods, using experimental data

• Grant number: 22/14815-5
• Support Opportunities: Research Projects - Thematic Grants
• Start date: February 01, 2024
• End date: January 31, 2029
• 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
• Pesquisadores principais: Marcio Tadeu de Assis Honorato Muella
• Associated researchers: Alexandre Tardelli ; Francisco Vieira ; Maukers Alem Lima Dias ; Maurício José Alves Bolzam ; Valdir Gil Pillat
• Associated scholarship(s): 25/14992-2 - Development of a computational tool for analyzing the Earth's magnetic field on a global scale., BP.TT; 24/10875-9 - CUSP-TYPE SPORADIC E LAYER CHARACTERISTICS AT LOW LATITUDES IN THE BRAZILIAN SECTOR, BP.MS; 24/07393-2 - Study of the generation and evolution of ionospheric irregularities on a global scale, during solar cycles 24 and 25., BP.PD; + associated scholarships 24/08104-4 - Study of the E, sporadic E layer and base of the F layer during solar cycles 24 and 25., BP.PD; 24/07329-2 - Study of the Ionosphere during a geomagnetically disturbed period, solar cycle 25., BP.IC; 24/05587-4 - Study of the month-to-month variation of ionospheric disturbances caused by large-scale irregularities., BP.IC; 24/05909-1 - Development of a computational tool for analyzing the Earth's magnetic field on a global scale., BP.TT - associated scholarships

Abstract

The main objective of this project is to investigate on a global scale the diurnal, day-to-day, and seasonal variability of ionospheric electrodynamics and the vertical coupling between the ionospheric E and F layers during geomagnetically quiet and disturbed periods as a function of the solar cycle 24 and 25. This research is an international effort to investigate and understand Space Weather and the Sun-Earth relationship, since the new digital society depends on space technologies. The great challenge of this project is to investigate how Space Weather on a global scale and a local scale are connected since different regions of the globe have different local time, seasons, and geometry between geographic and geomagnetic equators. In this study, experimental data from the American, African, European and Asian sectors of GPS-TEC, ionosondes, all-sky imaging photometers, Fabry-Perot interferometer, and magnetometers will be used and, when necessary, experimental data obtained from satellites experiments. The most relevant scientific topics that will be investigated are the ionospheric response during solar flares and geomagnetic storms, the generation and evolution of ionospheric irregularities, and seasonal, day-to-day, diurnal variation of the equatorial ionization anomaly (EIA). The implementation of this project will be possible due to the strong international and national collaboration that the UNIVAP group has consolidated over time. These collaborations were made possible through bilateral travel and discussions at international events. (AU)

Scientific publications

(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)

FAGUNDES, P. R.; PILLAT, V. G.; TARDELLI, A.; MUELLA, M. T. A. H.. Pole-To-Pole Ionospheric Disturbances Due To Solar Flares, During Low Solar Activity. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 129, n. 7, p. 17-pg., 2024-07-01. (22/14815-5)

FAGUNDES, P. R.; PILLAT, V. G.; HABARULEMA, J. B.; TARDELLI, A.; MUELLA, M. T. A. H.. Solar Flares and the Intricate Response of Earth's Outer Geomagnetic Field Variation. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 129, n. 9, p. 9-pg., 2024-09-01. (22/14815-5)

AGYEI-YEBOAH, EBENEZER; FAGUNDES, PAULO ROBERTO; TARDELLI, ALEXANDRE; PILLAT, VALDIR GIL; VIEIRA, FRANCISCO; BOLZAN, MAURICIO JOSE ALVEZ. Global ionospheric response to a G2 and a G3 geomagnetic storms of November 4 and 5 2023. Advances in Space Research, v. 75, n. 7, p. 23-pg., 2025-04-01. (22/14815-5)