@InProceedings{MoroXDARSLZWS:2024:AnBlSp,
               author = "Moro, Juliano and Xu, Jiyao and Denardin, Clezio Marcos and 
                         Andrioli, V{\^a}nia F{\'a}tima and Resende, Laysa Cristina 
                         Ara{\'u}jo and Silva, Ligia Alves da and Li, Hui and Zhengkuan, 
                         Liu and Wang, Chi and Schuch, Nelson Jorge",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {China-Brazil Joint Laboratory for Space Weather} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {China-Brazil Joint Laboratory for Space Weather} and 
                         {China-Brazil Joint Laboratory for Space Weather} and 
                         {China-Brazil Joint Laboratory for Space Weather} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Analysis of Blanketing Sporadic-E Layer and Associated Tidal 
                         Periodicities Over a Brazilian Station Undergoing a Transition 
                         from Low to Mid-Latitude",
            booktitle = "Proceedings...",
                 year = "2024",
         organization = "Conferencia Latinoamericana de Geof{\'{\i}}sica Espacial, 14.",
             abstract = "Analyses on a complete year of Digisonde data are conducted to 
                         investigate the sporadicE (Es) layers over Santa Maria (29.7º S, 
                         53.8º W, dip lat.: -37º), Brazil. This region is undergoing a 
                         transition from low- to mid-latitude within the South American 
                         Magnetic Anomaly (SAMA), which provides a key motivation to 
                         explore their behavior and the associated tidal periodicities. The 
                         Es are classified into four types: flat (Esf), low (Esl), high 
                         (Esh), and cusp (Esc). The diurnal and seasonal variations of 
                         their top (ftEs) and blanketing (fbEs) frequencies and virtual 
                         height (hEs) are examined. The frequency parameters show the 
                         presence of intense Es during equinoxes besides summer. It is also 
                         remarkable the higher values of mean hEs during winter compared to 
                         the other seasons during daytime. These observations differ from 
                         previous theories about mid-latitude Es layers. The diurnal 
                         occurrence rates of the Esb types exhibited distinct dependencies 
                         on both local time and seasons. The Esh and Esc were observed 
                         exclusively during the daytime, with the former dominating the 
                         occurrences in all seasons. To investigate any tidal periodicities 
                         embedded in the ftEs, fbEs, and hEs time series, the Lomb-Scargle 
                         technique was employed. The analysis revealed the presence of 24-, 
                         12-, 8-, and 6-hour periodicities in both fbEs and hEs when 
                         considering the entire year of data. However, when the data is 
                         fractioned into seasons, the predominant periodicities were found 
                         to be 24- and 12-hour cycles. Furthermore, when considering the 
                         different Esb types, the LombScargle analysis indicated varying 
                         periodicities.",
  conference-location = "Monterrey, Mexico",
      conference-year = "08-12 Apr. 2024",
             language = "en",
        urlaccessdate = "03 maio 2024"
}