@InProceedings{SilvaDias:2004:DeBiBu,
               author = "Silva Dias, Maria Assuncao Faus da",
          affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
                title = "Deforestation and Biomass Burning as Drivers of Regional Climate 
                         Change in Amazonia",
            booktitle = "Anais...",
                 year = "2004",
         organization = "Conferencia Cientifica do LBA, 3.",
             abstract = "Deforestation and biomass burning represent potential drivers of 
                         significant regional climate change in the Amazon Basin. The 
                         horizontal and temporal scales over which these drivers are 
                         affecting the atmosphere varies for the different part of the 
                         Amazon but a few common features arise from the research carried 
                         out in LBA. Deforestation is associated to a change in land cover, 
                         from forest to grassland or agriculture, or even a substitution by 
                         secondary growth forest. The change in land cover has direct 
                         impact on the energy input, through the change in surface albedo, 
                         and on the energy output through availability of soil moisture at 
                         root depth defining the partioning of sensible and latent heat 
                         fluxes. This is basically a boundary forcing for the atmospheric 
                         boundary layer and the effect on the atmosphere is a function of 
                         the scale where it is happening. One key result is an increase in 
                         surface temperature locally and impacts on cloudiness and rainfall 
                         depending on the scale of the deforested area. Biomass burning 
                         also has an impact on the surface forcing through a change in 
                         surface albedo, but the main impact is in the change of 
                         atmospheric composition, in particular with respect to number 
                         concentration of aerosol. The internal forcing represented by 
                         biomass burning alters the thermodynamic structure of the lower 
                         layers and the cloud microphysical structure with both effects 
                         combined changing the rainfall occurrence and amounts. The two 
                         effects, deforestation and biomass burning, combine in nature and 
                         the suggested effect is seen as a delay on the start of the rainy 
                         season, and a tendency to produce more thunderstorms in the end of 
                         the dry season.",
  conference-location = "Brasilia",
      conference-year = "27-29 jul.",
             language = "en",
         organisation = "LBA",
           targetfile = "SilvaDiasMAF_LBA.pdf",
        urlaccessdate = "04 maio 2024"
}