@AudiovisualMaterial{AyorindeWTGFBLEBN:2021:StAtGr,
             abstract = "Atmospheric gravity waves (AGWs) are an essential mechanism in the 
                         transport of energy and momentum flux from the low to the upper 
                         atmosphere. In the last decades satellite observations have become 
                         an important part in the analysis of AGWs due to their global and 
                         frequent coverage. Global Positioning Satellite (GPS) radio 
                         occultation (RO) is a well-established technique for obtaining 
                         AGWs information. Temperature profiles are derived with high 
                         vertical resolution and provide a global coverage under any 
                         weather conditions, offering the possibility of global and 
                         regional monitoring of the vertical temperature structure and 
                         atmospheric wave parameters. In this study, temperature profiles 
                         from RO measurements over South American sector were employed to 
                         study the atmospheric coupling of the troposphere, stratosphere, 
                         and mesosphere through the dynamic process of AGWs in the range of 
                         20 km and 50 km in altitude. The results of the specific potential 
                         energy (Ep), vertical wavenumber, the horizontal and vertical 
                         wavelengths, and the vertical flux of horizontal momentum (MF) are 
                         calculated. Their temporal (day-today) and spatial variations over 
                         South America will be presented.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
               author = "Ayorinde, Toyese Tunde and Wrasse, Cristiano Max and Takahashi, 
                         Hisao and Gobbi, Delano and Figueiredo, Cosme Alexandre Oliveira 
                         Barros and Barros, D. and Lomotey, Solomon Otoo and Essien, 
                         Patrick and Bilibio, Anderson Vestena and Nyassor, Prosper 
                         Kwamla",
                 city = "Online",
       conferencename = "Simp{\'o}sio Brasileiro de Geof{\'{\i}}sica Espacial e 
                         Aeronomia, 8 (SBGEA)",
                 date = "22-26 mar.",
             language = "en",
            publisher = "Instituto Nacional de Pesquisas Espaciais",
     publisheraddress = "S{\~a}o Jos{\'e} dos Campos",
           targetfile = "ayorinde-presentation.pdf",
                title = "Study on Atmospheric gravity wave propagations in the Troposphere, 
                         Stratosphere and Mesosphere using GNSS Satellite Radio Occultation 
                         measurements",
                 year = "2021",
        urlaccessdate = "27 abr. 2024"
}