@InProceedings{AbduKheBruBatSob:2009:RoUpPr,
               author = "Abdu, Mangalathayil Ali and Kherani, E. Alam and Brum, C. G. M. 
                         and Batista, Inez Staciarini and Sobral, Jos{\'e} Humberto 
                         Andrade",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Arecibo Observatory} 
                         and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "The role of upward propagating waves in the equatorial spread F 
                         day-to-day variability",
            booktitle = "Proceedings...",
                 year = "2009",
         organization = "Iaga, 2009.",
             keywords = "Gravity waves effects, Planetary wave effects, Equatorial spread 
                         F.",
             abstract = "In this presentation we will discuss the effects of upward 
                         propagating atmospheric waves (mainly planetary- and gravity- 
                         waves) of varying intensity in the control of the equatorial post 
                         sunset/nighttime F region plasma instabilities growth leading to 
                         spread F development and its day-to-day variabilities. The role of 
                         gravity waves will be discussed based on findings from a recent 
                         SpreadFEx campaign (September-October 2005) conducted in Brazil. 
                         An evaluation of the relative importance of the prereversal 
                         vertical drift versus GW winds in the instability growth for ESF 
                         development will be presented. Besides, some cases of GW 
                         modification of the PRE that can potentially contribute to the 
                         instability growth or that could decrease the growth rate will be 
                         discussed. Recent studies have shown that the upward propagating 
                         planetary waves can be an important source of modification of the 
                         evening vertical drift and hence ESF development. Some case 
                         studies of the different sources of ESF day-to-day variabilities 
                         during quiet conditions will be presented and discussed.",
  conference-location = "Sopron, Hungary",
      conference-year = "23-30 Aug.",
             language = "en",
        urlaccessdate = "03 maio 2024"
}