@Article{SousasantosAbMoVaSiSo:2021:LoStEq,
               author = "Sousasantos, Jonas and Abdu, Mangalathayil Ali and Moraes, A. O. 
                         and Vani, B. C. and Silva, R{\'e}gia Pereira da and Sobral, 
                         Jos{\'e} Humberto Andrade",
          affiliation = "{Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and 
                         Instituto Federal de Educa{\c{c}}{\~a}o, Ci{\^e}ncia e 
                         Tecnologia de S{\~a}o Paulo (IFSP) and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Long-lasting stagnant equatorial plasma bubble event and the 
                         related scintillation over the Brazilian region",
              journal = "Advances in Space Research",
                 year = "2021",
               volume = "68",
               number = "11",
                pages = "4678--4690",
                month = "Dec.",
             keywords = "Plasma Bubble DriftIonospheric ScintillationTransionospheric 
                         signalsGNSSSBAS.",
             abstract = "Diverse studies about equatorial plasma bubble structures and 
                         their relation with ionospheric scintillation have been performed 
                         in the last decades. Among many findings, the investigations 
                         usually reported dominant plasma bubble eastward velocity with a 
                         magnitude of few tens of m/s and larger amplitude scintillation 
                         for transionospheric signals aligned with these depleted 
                         structures. However, an uncommon long-lasting event with 
                         negligible average zonal drift prevailing for hundreds of minutes 
                         was registered over the Brazilian region, allowing a case study of 
                         the scintillation pattern under this particular condition. Data 
                         from ionosondes, all-sky imager (6300 angstrom filter), 
                         geostationary satellites and Global Navigation Satellite System 
                         were used here, covering the eastern portion of the Brazilian 
                         ionosphere. The results show that the scintillation was less 
                         intense than in other nights around the event, suggesting that 
                         larger plasma density gradients and sequential bubble structures 
                         seem to cause more severe scintillation scenario than the 
                         alignment condition alone, even though the last also contributes 
                         to worsen the scintillation effects. Regarding the stagnant bubble 
                         pattern, the results suggest prevailing E region Hall conductivity 
                         and equatorward wind as potential agents.",
                  doi = "10.1016/j.asr.2021.08.040",
                  url = "http://dx.doi.org/10.1016/j.asr.2021.08.040",
                 issn = "0273-1177 and 1879-1948",
             language = "en",
           targetfile = "sousasantos_long.pdf",
        urlaccessdate = "15 jun. 2024"
}