@Article{PaesBatCanJonSan:2014:EqIoAn,
               author = "Paes, Ricardo R. and Batista, Inez Staciarini and Candido, Claudia 
                         M. N. and Jonah, Olusegun Folarin and Santos, Paulo Cesar 
                         Perminian dos",
          affiliation = "{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)}",
                title = "Equatorial ionization anomaly variability over the Brazilian 
                         region during boreal sudden stratospheric warming events",
              journal = "Journal of Geophysical Research: Space Physics",
                 year = "2014",
               volume = "119",
                pages = "7649--7664",
             abstract = "This study refers to the connection between the stratosphere and 
                         ionosphere, investigating, specifically, the behavior of the 
                         equatorial ionization anomaly (EIA) and ionospheric effects over 
                         the Brazilian region during sudden stratospheric warming (SSW) 
                         events. We studied three major warmings that occurred in the 
                         Northern Hemisphere winter 20072008, 20082009, and 20092010 and a 
                         minor warming that occurred in 20102011. The solar activity was 
                         low for the first two cases and relatively moderate for the last 
                         two. In this study the EIA behavior was investigated using the 
                         \ΔTEC (total electron content) parameter, which expresses 
                         the EIA relative intensity for the Brazilian sector. The results 
                         for the Brazilian region show, mainly after SSW temperature peak, 
                         an increase in the EIA intensity in the morning, followed by a 
                         decrease in the afternoon. As identified through \ΔTEC 
                         signatures and consistently confirmed through wavelet power 
                         spectra analysis, this semidiurnal behavior is preserved for a 
                         number of days equal to the polar region thermal stabilization 
                         phase and it is very similar to the results obtained in pioneer 
                         studies in the Peruvian sector, in which TEC data was also used. 
                         In some cases the TEC negative variation is stronger than the 
                         positive, being noticeably more intense around the prereversal 
                         enhancement time, when the EIA is strongly suppressed in the 
                         Brazilian sector.",
                  doi = "10.1002/2014ja019968",
                  url = "http://dx.doi.org/10.1002/2014ja019968",
                 issn = "2169-9402",
                label = "lattes: 3360356110300746 4 PaesBatCanJonSan:2014:EqIoAn",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}