@InProceedings{BuchmannSilvMour:1984:TrCoOv,
               author = "Buchmann, Julio and Silva Dias, Pedro Leite and Moura, Antonio 
                         Divino",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Transient convection over the Amazon/Bolivia region and the 
                         dynamics of droughts over northeast Brazil",
                 year = "1984",
         organization = "WMO Symposium on Meteorological Aspects of Tropical Droughts.",
             keywords = "METEOROLOGIA.",
             abstract = "A two-layer, non-linear, equatorial B-plane model, in 
                         p-coordinates is used to study the atmospheric response to a large 
                         scale prescribed heat source varying in time. The heat source is 
                         meant to represent the diurnal variation of the summer large scale 
                         convection over the Amazon/Bolivia region (Silva Dias et all, 
                         1983). The boundary conditions used are meridional velocity zero 
                         at 60 graus north and south and no vertical mass flux at the top 
                         and bottom of the atmosphere. Several sensitivity studies were 
                         done which include Newtonian cooling versus constant cooling and 
                         initial state at rest compared with an initial parabolic (in 
                         latitude)zonal flow. The scale of the heat source is 1500 Km in 
                         latitude and longitude and it is centered at 10 graus S. Special 
                         attention is paid to the distribution and intensity of the induced 
                         vertical motion. The model is integrated for a few days and the 
                         preliminary results show some agreement with the observed 200 mb 
                         flow (Virji, 1981). Of interest is the establishement of a trough 
                         and descending motion to the northeast of the heat source. A 
                         conjucture is thus made that the Amazon heat source and its 
                         fluctuations bear some relationship with the drought problem over 
                         Northeast Brazil.",
  conference-location = "Fortaleza, CE",
      conference-year = "24-28 Sept. 1984",
           copyholder = "SID/SCD",
                label = "2497",
           targetfile = "INPE-3723.pdf",
        urlaccessdate = "28 abr. 2024"
}