Comparisons of IRI Model and Electron Density Data for the Sub-Equatorial Station, Natal
Fine Structure of the Ionospheric Plasma Bubbles Observed by the OI 6300 and 5577 Airglow Images
Global Scale Earth's Upper Atmosphere Monitoring by SACI-1 Micro-Satellite
Occurrence of an Additional Layer in the Ionosphere Over Fortaleza
Permanent Changes in Sporadic E Layers over Fortaleza, Brazil