@Article{AmorimPimeAlme:2012:ChMeTr,
               author = "Amorim, Danielle Cristina de Morais and Pimenta, Alexandre Alvares 
                         and Almeida, A. A.",
          affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Characterization of medium-scale traveling ionospheric 
                         disturbances in the brazilian low latitude sector statistical 
                         analysis of all-sky images of oi 630 nm airglow emission",
              journal = "Revista Brasileira de Geof{\'{\i}}sica",
                 year = "2012",
               volume = "30",
               number = "2",
                pages = "129--136",
             keywords = "MSTIDs, airglow, Perkins instability.",
             abstract = "In order to characterize the phenomenon known as Medium-Scale 
                         Traveling Ionospheric Disturbances (MSTIDs), we present in this 
                         paper the results obtained from the statistical analysis of 10.5 
                         years all-sky images of OI 630 nm airglow emission over the 
                         Brazilian low latitude sector. The images, which were obtained by 
                         an all-sky imager installed at Cachoeira Paulista (22.7\◦S, 
                         45\◦W), show dark band structures propagating from 
                         southeast to northwest with velocities of 50-200 m/s. Our results 
                         show the greatest occurrence of MSTIDs during solar minimum and a 
                         minor occurrence rate during descending and ascending solar 
                         activity periods. During solar maximum activity we have not 
                         detected MSTIDs signatures on all-sky images. In relation to 
                         seasonality, the greatest frequency of occurrence is during local 
                         winter. All detected events have occurred during geomagnetically 
                         quiet conditions (Kp<3). Possible mechanisms of generation of this 
                         phenomenon are discussed.",
                 issn = "0102-261X",
                label = "lattes: 4540882358553916 1 AmorimPimeAlme:2012:CHMETR",
             language = "en",
           targetfile = "86-272-1-PB.pdf",
                  url = "http://sys2.sbgf.org.br/revista/index.php/rbgf/article/view/86/41",
        urlaccessdate = "30 abr. 2024"
}