@Article{MachoCorrSpogMuel:2022:ClIoAm,
               author = "Macho, Eduardo Perez and Correia, Em{\'{\i}}lia and Spogli, Luca 
                         and Muella, M{\'a}rcio Tadeu de Assis Honorato",
          affiliation = "{Universidade Presbiteriana Mackenzie} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Istituto Nazionale di Geofisica e 
                         Vulcanologia (INGV)} and {Universidade do Vale do Para{\'{\i}}ba 
                         (UNIVAP)}",
                title = "Climatology of ionospheric amplitude scintillation on GNSS signals 
                         at south American sector during solar cycle 24",
              journal = "Journal of Atmospheric and Solar-Terrestrial Physics",
                 year = "2022",
               volume = "231",
                pages = "e105872",
                month = "May",
             keywords = "EIA, GNSS, Ionosphere, Irregularities, Scintillation.",
             abstract = "Scintillations are caused by ionospheric irregularities and can 
                         affect the propagation of trans-ionospheric radio signals. One way 
                         to understand and predict the impact of such irregularities on 
                         Global Navigation Satellite System (GNSS) signals is through the 
                         spatial/temporal characterization of the scintillation's 
                         climatology during different phases of a solar cycle covering 
                         different latitudes and longitudes. This characterization is 
                         performed using amplitude scintillation index S4, during the full 
                         solar cycle 24, in the South American (SA) sector. The 
                         investigation considers the diurnal, daily, and seasonal variation 
                         of S4 index for climatological purpose, and the goal of this study 
                         is to investigate the scintillations covering a large spatial 
                         scale during the full solar cycle 24. The characterization shows a 
                         latitudinal asymmetry, whereas at the south, the scintillations 
                         were more frequent and their peak was more distant from the 
                         magnetic equator, which can be attributed by the South Atlantic 
                         Magnetic Anomaly (SAMA), and/or by the transequatorial meridional 
                         neutral winds. It also shows a longitudinal asymmetry, where the 
                         scintillations at the eastern sector occurred between November and 
                         February, while at the western sector, they occurred during the 
                         months of October, November, February and March, which can be 
                         attributed to the difference between the magnetic and geographic 
                         equators. The occurrence of scintillations during two distinct 
                         geomagnetic storms with similar storm time in the SA sector is 
                         also presented.",
                  doi = "10.1016/j.jastp.2022.105872",
                  url = "http://dx.doi.org/10.1016/j.jastp.2022.105872",
                 issn = "1364-6826",
             language = "en",
           targetfile = "macho_2022_climatology.pdf",
        urlaccessdate = "11 maio 2024"
}