Study of the F3 and StF4 layers formation and the TEC near the southern crest of the EIA at the low latitude region in the Brazilian sector

Alexandre Tardelli1, Paulo Roberto Fagundes2, Valdir Gil Pillat2 and Brunno AG Ribeiro3, (1)University of Vale do Paraíba, Sao Jose dos Campos, Brazil, (2)UNIVAP University of Vale do Paraíba, Sao Jose dos Campos, Brazil, (3)Universidade do Vale do Paraíba, São José dos Campos, Brazil