@AudiovisualMaterial{MoroSMADMMJDFRCSB:2008:StSoAm,
             abstract = "The main objective of this work is to study the behavior of the 
                         Ionosphere in the central region of the South Atlantic Magnetic 
                         Anomaly SAMA, in the south of Brazil and south cone of South 
                         America, analyzing data observed with a riometer network (riometer 
                         radio ionosphere opacity meter). The SAMA is characterized as an 
                         area in which the geomagnetic field has its lowest intensity. This 
                         negative anomaly only happens in Southern Hemisphere and it 
                         extends longitudinally until the western coast of South America 
                         with its origin attributed to the anti-symmetrical distribution of 
                         the electric currents inside the Planet. One of the consequences 
                         of the low intensity of the geomagnetic field in this region is 
                         that the energetic particles trapped in the Van Allens inner 
                         radiation belt can precipitate easily into the SAMA region then in 
                         other regions worldwide. To study the precipitation of the energy 
                         particles in the SAMA, a riometer network SARINET (South America 
                         Riometer Network) is been installed and is operating. These 
                         riometers detects the variation of the incidence of cosmic 
                         radiation in the ground, thus determining the electronic density 
                         of the lower ionosphere, layers D and E. The objective of SARINET 
                         is to have five Riometer operational in the SAMA region. Two of 
                         them were installed in the Southern Space Observatory - 
                         SSO/CRS/CIE/INPE - MCT, in S{\~a}o Martinho da Serra - South of 
                         Brazil (29.4oS, 53.8oW). The first consists of a one channel 
                         riometer while the second one is an image riometer, with a set of 
                         16 antennas formed by a 4x4 matrix operating at 38.2 MHz. The 
                         SSO-Observatory is strategically located near SAMA central region, 
                         where the intensity of geomagnetic field is around 23000 nT. The 
                         third and fourth Riometers are also one channel Riometer and were 
                         installed in Chile, one in Punta Arenas (53.1 oS, 71.0 oW) and 
                         other in Concepcion (37.5 oS, 72.7 oW), respectively. The last one 
                         channel Riometer is at Trelew, Argentina, and it should be 
                         integrated to the SARINET by April 2008. These five Riometers 
                         permits to study and determine the spatial scale and the dynamics 
                         of the Ionospheric absorption events.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {} and {} and {} and 
                         {} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
               author = "Moro, Juliano and Schuch, Nelson Jorge and Muralikrishna, Polinaya 
                         and Abdu, Mangalathayil Ali and Denardin, Clezio Marcos and 
                         Makita, Kazuo and Moor, Lilian and Jaskulski, Tiago and Daroit, 
                         C{\'e}zar Augusto and Favera, Eduardo Ceretta Dalla and Raulin, 
                         Jean-Pierre and Correia, Em{\'{\i}}lia and Sobral, Jos{\'e} 
                         Humberto Andrade and Bachmann, Alberto J. Foppiano",
                 city = "Montreal, Canada",
       conferencename = "Scientific Assembly of COSPAR, (37Th).",
                 date = "18-25, July",
             language = "en",
            publisher = "Instituto Nacional de Pesquisas Espaciais",
     publisheraddress = "S{\~a}o Jos{\'e} dos Campos",
                  ibi = "8JMKD3MGP8W/34BBEC5",
                  url = "http://urlib.net/ibi/8JMKD3MGP8W/34BBEC5",
           targetfile = "COSPAR 2008 p{\^o}ster_Juliano Moro - 573 Study of the South 
                         America lower...pdf",
                title = "Study of the South America lower ionosphere using the SARINET 
                         NETWORK",
                 year = "2008",
        urlaccessdate = "11 maio 2024"
}