@Article{SousasantosAbSaBaSiLo:2020:CoLoOb,
               author = "Sousasantos, Jonas and Abdu, Mangalathayil Ali and Santos, Angela 
                         and Batista, Inez Staciarini and Silva, Andr{\'e} and Loures, 
                         Luis Eduardo",
          affiliation = "{Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Tecnol{\'o}gico de 
                         Aeron{\'a}utica (ITA)} and {Instituto Tecnol{\'o}gico de 
                         Aeron{\'a}utica (ITA)}",
                title = "Further complexities on the pre-reversal vertical drift modeling 
                         over the Brazilian region: a comparison between long-term 
                         observations and model results",
              journal = "Journal of Space Weather and Space Climate",
                 year = "2020",
               volume = "10",
                pages = "e2020022",
             keywords = "Pre-reversal vertical drift / Equatorial plasma electrodynamics / 
                         Ionospheric modeling.",
             abstract = "The vertical component of the plasma drift, especially the 
                         evening-time pre-reversal drift, constitutes an important aspect 
                         of the nighttime electrodynamics of the equatorial ionosphere. 
                         Over the years, several studies using measurements and models have 
                         been performed to understand the characteristics of this process 
                         and its implications for the development of the instabilities 
                         leading to the plasma bubble formation and ionospheric 
                         scintillation. However, the Brazilian region presents some unique 
                         features that bring some difficulties for the vertical drift 
                         prognosis, which is required for the scintillation forecasting. 
                         These features are mainly related to the geomagnetic field lines 
                         topology that presents strong differences when compared to those 
                         of other equatorial longitudes. In this work, some of the 
                         difficulties for the prereversal vertical drift modeling and 
                         estimation are discussed; also, a dataset containing long-term 
                         observation (20012009) is compared with a widely used empirical 
                         model. The results show an intrinsic trend of underestimation by 
                         the model, which seems to be independent of latitude and 
                         seasonality thus suggesting an additional contribution arising 
                         from sources other than solely the geomagnetic topology. Also, the 
                         results indicate that the deviation can vary in the range of 040 
                         m/s and the percentage error enhances with increasing values of 
                         pre-reversal vertical drift peak and reduces with increasing F10.7 
                         values, thereby, indicating a clear possibility of meridional 
                         winds contribution which is not included in the empirical model 
                         used and may account for these differences.",
                  doi = "10.1051/swsc/2020022",
                  url = "http://dx.doi.org/10.1051/swsc/2020022",
                 issn = "2115-7251",
             language = "en",
           targetfile = "Sousasantos_Further.pdf",
        urlaccessdate = "25 abr. 2024"
}