Study of Multiple Stratification and Propagation of Gravity Waves in the F-layer in low latitudes and equatorial region

• Grant number: 18/09879-9
• Support Opportunities: Regular Research Grants
• Start date: September 01, 2018
• End date: August 31, 2021
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geophysics
• Principal Investigator: Alexandre Tardelli
• Grantee: Alexandre Tardelli
• Host Institution: Instituto de Pesquisa e Desenvolvimento (IP&D). Universidade do Vale do Paraíba (UNIVAP). São José dos Campos , SP, Brazil

Abstract

This project aims to investigate the formation of ionospheric F layer multiple stratifications in low latitudes and equatorial region. The formation of a fourth stratification of the F layer (StF4) was observed in the American sector for the first time by the author of this project, using ionospheric soundings in Palmas (10.3°S, 48.3°W). However, there are still some subjects studied during the doctoral/postdoctoral that have not yet been published and others that were not addressed in the doctoral thesis. Among these subjects, we highlight the study of the F3/StF4 formation during quiet and disturbed periods, study of gravity waves/MSTIDs in the equatorial region/low latitudes, which may provide information for a better understanding of the mechanisms of formation of the StF4 layer, study through computational modeling of the initial physical conditions for the F3/StF4 formation and the role of the F3 layer in this process, in addition, a study behavior of the local TEC during the occurrence of stratifications (F3/StF4) in F-Region. In this sense, it is very important to continue the research begun in the doctorate/postdoctoral. This research project is a continuation of the postdoctoral project that was discontinued due to my hiring as a researcher professor at UNIVAP. For this reason, the postdoctoral project will be adapted for the regular research project. I would like to emphasize that it would be very important for me to continue my research with this project. (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)

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, JAN 1 2022. (18/09879-9, 19/09361-2)