@Article{AbduAnanCout:1973:AzDrPr,
               author = "Abdu, Mangalathyil Ali and Ananthakrishnan, S. and Coutinho, E. 
                         F.",
                title = "Azimuthal Drift and Precipitation of Electrons into the South 
                         Atlantic Geomagnetic Anomaly during an SC Magnetic Storm",
              journal = "Journal of Geophysical Research",
                 year = "1973",
               volume = "78",
               number = "25",
                pages = "5830--3836",
                month = "Spt..",
             keywords = "AERONOMIA, anomalias magn{\'e}ticas, precipita{\c{c}}{\~a}o de 
                         part{\'{\i}}culas, jun{\c{c}}{\~a}o ionosfera, magnetosfera, 
                         VLF, temperatura magn{\'e}tica, magnetic anomalies, magnetic 
                         storms, magnetosphere ionosphere coupling, very low 
                         frenquencies.",
             abstract = "The south Atlantic geomagnetic anomaly provides a permanent sink 
                         for trapped particles, in the inner radiation belt. Losses occur 
                         during the longitudinal drift of these particles, when their 
                         mirror altitudes dip lower down in the region of the anomaly, thus 
                         resulting in a loss of energy owing to interaction with 
                         atmospheric constituents. Day to night changes in the 
                         precipitation are believed to take place owing to the 
                         corresponding changes in the atmospheric density. More significant 
                         changes, however, occur owing to disturbances produced as a result 
                         of injection of charged particles into the radiation belt either 
                         by artificial means such as occur during high-altitude nuclear 
                         explosions (for example, the 'Starfish' explosion of 1962)or by 
                         geophysical disturbances produced by the sun. The latter phenomena 
                         in particular provide a natural means of studying, the coupling or 
                         the interaction between the magnetosphere and the ionosphere over 
                         low latitudes. Very few such investigations, however, have been 
                         made so far. Recently some studies [for example, Mendes et al., 
                         1970]were made on the propagation of very low frequency 
                         (VLF)signals through the geomagnetic anomaly that showed that the 
                         phase and amplitude of VLF signals received at a station located 
                         within the anomaly underwent changes during certain polar cap 
                         absorption (PCA)events that could be interpreted as being due to 
                         particle precipitation into the anomaly.",
                 issn = "0148-0227 and 2156-2202",
                label = "9449",
           targetfile = "8425.pdf",
        urlaccessdate = "29 jun. 2024"
}