@InProceedings{MachoCorrSpogMuel:2021:IoIrDu,
               author = "Macho, E. P. and Correia, Emilia and Spogli, L. and Muella, Marcio 
                         Tadeu Honorato",
          affiliation = "{Universidade Presbiteriana Mackenzie} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Istituto Nazionale di Geofisica e 
                         Vulcanologia} and {Universidade do Vale do Para{\'{\i}}ba 
                         (UNIVAP)}",
                title = "Ionospheric irregularities during the last solar cycle in the 
                         South American sector",
                 year = "2021",
         organization = "Simp{\'o}sio Brasileiro de Geof{\'{\i}}sica Espacial e 
                         Aeronomia, 8. (SBGEA)",
             abstract = "Ionospheric irregularities can affect trans-ionospheric radio 
                         signals from Global Navigation Satellite Systems (GNSS), High 
                         Frequency (HF) communication, and the satellites control system. 
                         One way to understand and predict such irregularities is to 
                         compare the amplitude scintillation index during solar maximum and 
                         minimum in different regions. The aim of this study is to performs 
                         S4 comparison in the Equatorial Ionospheric Anomaly (EIA) and 
                         South Atlantic Magnetic Anomaly (SAMA) regions. The results show 
                         important increases in the spring and summer of southern 
                         hemisphere of these regions, especially during the solar maximum. 
                         This understanding intends to contribute in the forecast of radio 
                         signals obstruction of receivers located on the Earths surface in 
                         order to improve communication and navigation accuracy.",
  conference-location = "Online",
      conference-year = "22-26 mar.",
             language = "en",
        urlaccessdate = "03 maio 2024"
}