@Article{LimaBatiTakaClem:2004:QuWaOb,
               author = "Lima, L. M. and Batista, Paulo Prado and Takahashi, Hisao and 
                         Clemesha, Barclay Robert",
          affiliation = "Universidade Estadual da Para{\'{\i}}ba, Campina Grande, PB, 
                         Brazil and Instituto Nacional de Pesquisas Espaciais, INPE, 
                         S{\~a}o Jos{\'e} dos Campos, SP, Brazil",
                title = "Quasi-two-day wave observed by meteor radar at 22.7°S",
              journal = "Journal of Atmospheric and Solar-Terrestrial Physics",
                 year = "2004",
               volume = "66",
               number = "6-9",
                pages = "529--537",
                month = "Apr.-June",
             keywords = "meteor radar, quasi-2-day wave, planetary waves,lower 
                         -thermosphere, baroclinic instability, middle atmosphere, summer 
                         mesosphere, planetary-waves, variability, fluctuations, amplitude, 
                         Northern.",
             abstract = "Using meteor radar, meteor winds in the 80- to 100-km height range 
                         were measured at Cachoeira Paulista (22.7degreesS, 45degreesW) 
                         from April 1999 to March 2002 with the aim of studying the 
                         characteristics of the quasi-2-day oscillation at low latitudes in 
                         the Southern Hemisphere. In this paper, attention is given to the 
                         height variation of the amplitude and phase of the meridional 
                         component and the climatology of the quasi-2-day wave, which 
                         maximizes at summer solstice. The annual behaviour of the 
                         quasi-2-day oscillation as a function of height shows that the 
                         wave activity was also present at other times of the year, mainly 
                         in July, August, and December, but with less intensity than in the 
                         late summer months. Two-day wave amplitudes were stronger than the 
                         diurnal tides during summer events suggesting an anti -correlation 
                         between these oscillations, not verified on other occasions. 
                         Two-day wave amplitudes exhibited variability with height in all 
                         three summer seasons with a maximum of about 50 m s(-1). The 
                         vertical wavelengths estimated from the phase structures showed 
                         daily and inter-annual variability with values ranging from about 
                         25 up to 100 km during the 3 years. For the three observed summer 
                         seasons, the amplitudes for the 16-h component were low and we did 
                         not observe any relationship suggesting a 16-h oscillation 
                         generated by nonlinear interaction between tides and quasi-2-day 
                         waves.",
           copyholder = "SID/SCD",
                 issn = "1364-6826",
             language = "en",
           targetfile = "quasi-two-day.pdf",
        urlaccessdate = "03 maio 2024"
}