@InProceedings{AlvesMurSchMorMac:2010:StIoPl,
               author = "Alves, Dimas Igor and Muralikrishna, Polinaya and Schuch, Nelson 
                         Jorge and Moro, Juliano and Machado, Coelho",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Study of the Ionospheric Plasma in the South Atlantic Magnetic 
                         Anomaly SAMA Region with Riometers and VLF Receiver at the 
                         Brazilian Southern Space Observatory",
            booktitle = "Abstracts...",
                 year = "2010",
         organization = "American Advanced Studies Institute School on the Dynamics and 
                         Chemistry of the Middle Atmosphere (PASI).",
             abstract = "The South Atlantic Magnetic Anomaly (SAMA) is the region which has 
                         the lowest intensity of Earths magnetic field. In this region 
                         energetic particles can precipitate, contributing for the 
                         ionization of the Earths Ionosphere. In order to study the 
                         dynamics of SAMA, the SAVNET (South America Very Low Frequency 
                         Network) and SARINET (South America Riometer Network) networks 
                         were installed in the Southern Space Observatory (SSO/CRS/CCR/INPE 
                         MCT, 29.4ºS, 53.8ºW, 480 m a.s.l), S{\~a}o Martinho da Serra, RS, 
                         Brazil. The SAVNET network is composed by three antennas being two 
                         loop and one vertical, used for VLF wave propagation (Very Low 
                         Frequency, 3 30 kHz). The SAVNET network studies the properties of 
                         the successive reflections between the transmitter station and the 
                         receiver station through the wave guide formed by the Earths 
                         surface and the base of the Ionosphere. Thus it is possible to 
                         study the D diurnal layer and the nocturnal E layer of the 
                         Ionosphere through analyzes of the phase and amplitude of the VLF 
                         waves. The SARINET project aims to study the Ionospheres 
                         ionization due the particle precipitation in the SAMA region. The 
                         study is carried out by the analyzes of the ionospheric cosmic 
                         radio noise absorption in the 38 and 38.2 MHz range, using one 
                         channel riometer and an imaging riometer. The absorption is 
                         calculated by comparing the intensity of cosmic noise incident in 
                         the Earths surface between geomagnetic quiet periods and periods 
                         in which there is a high Ionospheres ionization. The present work 
                         has as objective to present the SAVNET and SARINET networks used 
                         at the Southern Space Observatory, and some results for one 
                         geomagnetic disturbed period using an imaging riometer and a VLF 
                         receiver.",
  conference-location = "San Juan, Argentina",
      conference-year = "4-9 October",
             language = "fr",
           targetfile = "PASI_2010_Abstract_Dimas Irion Alves.pdf",
        urlaccessdate = "16 jun. 2024"
}