@Article{MoroXBDARSLLWS:2023:AnBlSp,
               author = "Moro, Juliano and Xu, J. and Bageston, Jos{\'e} Valentin and 
                         Denardini, Clezio Marcos and Andrioli, Vania F{\'a}tima and 
                         Resende, Laysa Cristina Ara{\'u}jo and Silva, Ligia Alves da and 
                         Li, H. and Liu, Z. and Wang, Chi and Schuch, Nelson Jorge",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Chinese 
                         Academy of Sciences (CAS)} 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 {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Chinese Academy of 
                         Sciences (CAS)} and {Chinese Academy of Sciences (CAS)} and 
                         {Chinese Academy of Sciences (CAS)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Analysis of Blanketing Sporadic- E</i> Layer and Associated Tidal 
                         Periodicities Over a Brazilian Station Undergoing a Transition 
                         From Low Latitude to Midlatitude",
              journal = "Journal of Geophysical Research-Space Physics",
                 year = "2023",
               volume = "128",
               number = "12",
                pages = "e2023JA031947--13",
             keywords = "Space Weather, Sporadic E Layer, Waves and Tides, Aeronomy.",
             abstract = "Analyses on a complete year of Digisonde data are conducted to 
                         investigate the sporadic-E (Es) layers over Santa Maria (29.7°S, 
                         53.8°W, dip lat.: \−37°), Brazil. This region is undergoing 
                         a transition from low latitude to midlatitude 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 (h\′Es) are examined. The frequency parameters show 
                         the presence of intense Es during equinoxes besides summer. It is 
                         also remarkable that the higher values of mean h\′Es during 
                         winter compared to the other seasons during daytime. These 
                         observations differ from previous theories about midlatitude 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 h\′Es 
                         time series, the Lomb-Scargle technique was employed. The analysis 
                         revealed the presence of 24-, 12-, 8-, and 6-hr periodicities in 
                         both fbEs and h\′Es when considering the entire year of 
                         data. However, when the data are fractioned into seasons, the 
                         predominant periodicities were found to be 24- and 12-hr cycles. 
                         Furthermore, when considering the different Esb types, the 
                         Lomb-Scargle analysis indicated varying periodicities.",
                  doi = "10.1029/2023ja031947",
                  url = "http://dx.doi.org/10.1029/2023ja031947",
                 issn = "2169-9402",
                label = "lattes: 8030262077949409 4 MoroXBNARSLLWS:2023:AnBlSp",
             language = "en",
           targetfile = "JGR Space Physics - 2023 - Moro - Analysis of Blanketing 
                         Sporadic\‐E Layer and Associated Tidal Periodicities Over 
                         a.pdf",
        urlaccessdate = "03 maio 2024"
}