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@InProceedings{FigueiredoTaWrOtShBaSi:2017:MeScTr,
               author = "Figueiredo, Cosme Alexandre Oliveira Barros and Takahashi, Hisao 
                         and Wrasse, Cristiano Max and Otsuka, Yuichi and Shiokawa, Kazuo 
                         and Barros, Diego and Silva Dias, Maria A. F.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and Institute for Space-Earth 
                         Environmental Research, Nagoya University and {Nagoya University} 
                         and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Medium scale traveling ionospheric disturbances observed by 
                         detrended total electron content maps over South-Southeast of 
                         Brazil",
            booktitle = "Proceedings...",
                 year = "2017",
         organization = "AGU Fall Meeting",
             abstract = "Medium Scale Traveling Ionospheric Disturbances (MSTIDs) were 
                         studied using detrended Total Electron Content (dTEC) maps and 
                         keograms over South-Southeast of Brazil during the period from 
                         December 2012 to February 2016. In total 826 MSTIDs were observed 
                         and they present average values of horizontal wavelength, period, 
                         and horizontal phase velocity of 445.19  106.70 km, 23.58  3.65 
                         min e 322.68  80.95 m/s, respectively. The direction of 
                         propagation presented anisotropy depending on the season. In 
                         addition, the occurrences of MSTIDs were during the daytime 
                         between 11-15 LT in winter and other seasons near to solar 
                         terminator (17-19 LT). Furthermore, the seasonality of MSTIDs has 
                         a higher occurrence rate in winter. The MSTIDs characteristics 
                         also suggest that gravity wave activities in the thermosphere, 
                         mesosphere and troposphere could play an important role in 
                         generating the MSTIDs.",
  conference-location = "New Orleans",
      conference-year = "11-15 Dec.",
             language = "en",
        urlaccessdate = "28 nov. 2020"
}


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