@InProceedings{KantorFedrPaul:1998:ToIoEl,
               author = "Kantor, Ivan Jelinek and Fedrizzi, M. and Paula, Eurico Rodrigues 
                         de",
                title = "Total ionospheric electron content from GPS measurements over the 
                         Brazilian region",
            booktitle = "Posters",
                 year = "1998",
         organization = "Semin{\'a}rio da Latin American Conference on Space, (COLAGE).",
             keywords = "AERONOMIA, Brasil, sistema de posicionamneto global, 
                         medi{\c{c}}{\~o}es, metodologia, ionosfera terrestre, global 
                         positioning systms (GPS), measurements, methodology, earth 
                         ionosphere.",
             abstract = "Total ionospheric electron content (TEC) over the brazilian 
                         region, was measured using data from Global Positioning System 
                         (GPS) dual frequency receivers. The GPS system main purpose is to 
                         determine the position and velocity of a fixed or mobile object, 
                         placed over or near the earth surface, using the signals of 24 
                         satellites on earth orbit. Due to the effect of the ionosphere on 
                         the propagation of the electromagnetic waves transmitted by the 
                         GPS satellites, in 1575.42 and 1227.60 MHz, it is possible to 
                         obtain the TEC, using the usual data for navigation purpose. The 
                         TEC is the amount of free electrons along the path of the 
                         electromagnetic wave between each satellite and the receiver. The 
                         TEC is an important geophysical parameter, which has also 
                         applications for correcting navigation measurements for single 
                         frequency receivers. This work presents the methodology utilized 
                         to obtain diurnal and latitudinal variations of vertical TEC over 
                         the brazilian region.",
  conference-location = "San Jose, Costa Rica",
      conference-year = "3-7 nov. 1998",
                label = "9764",
           targetfile = "8800.pdf",
        urlaccessdate = "20 maio 2024"
}