@InProceedings{TanajuraChouYongNobr:2004:ExAtMo,
               author = "Tanajura, Clemente A. S. and Chou, Sin Chan and Yong, Kang Xue and 
                         Nobre, Carlos Afonso",
          affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
                title = "An experiment with the atmosphere-biosphere model Eta/SSiB on the 
                         Amazon deforestation",
            booktitle = "Resumos...",
                 year = "2004",
         organization = "Workshop Latino Americano em Modelagem Regional de Tempo e Clima 
                         Utilizando o Modelo ETA: Aspectos Fis{\'{\i}}cos e 
                         Num{\'e}ricos, 1.",
             abstract = "An experiment to investigate the impact of the Amazon 
                         deforestation on the South American climate was performed with the 
                         regional Eta model coupled to the simplified version of Simple 
                         Biosphere model (SSiB). The model domain covered all South America 
                         up to 50 oS. The initial and lateral boundary conditions were 
                         provided by NCEP analyses. Nine one-month integrations during 
                         November 1997 were done. The control integration had realistic 
                         vegetation mask. The others had the vegetation type over the 
                         Amazon changed from rain forest to savannah and grassland. 
                         Changing rainforest to savannah produced large decrease of 
                         precipitation in central and eastern Amazon. It also increased the 
                         canopy air temperature by more than 1 oC in the whole Amazon 
                         basin, with values of more than 5 oC in eastern Amazon.. The 
                         differences also show increase of precipitation over the Rio de 
                         Janeiro area around 22 oS. This region is located to the south of 
                         the area with decreased precipitation. The stationary and 
                         transient moisture transports were affected by the vegetation 
                         change, not only over the continent but also over the Southwestern 
                         Atlantic. This affected the simulated South Atlantic Convergence 
                         Zone (SACZ), which depends on the Amazon precipitation and is 
                         responsible for the precipitation maximum over southeast Brazil 
                         during the austral summer. The upper level circulation was 
                         influenced by the reduction of precipitation and the Bolivian High 
                         was not formed. Changing vegetation type from rainforest to 
                         grassland lead to patterns similar to those found previously, but 
                         the precipitation decrease in most of the Amazon region was 
                         smaller. This is due to the higher bare soil moisture flux 
                         provided by the grassland in relation to the savannah. The 
                         experiment shows that modifications in the climate of the Amazon 
                         and other areas over South American may occur in Amazon 
                         deforestation scenarios.",
  conference-location = "INPE-CPTEC-Cachoeira Paulista",
      conference-year = "21 - 26 mar.",
           copyholder = "SID/SCD",
                label = "self-archiving-INPE-MCTIC-GOV-BR",
             language = "en",
         organisation = "INPE/CPTEC/LAC/CTE/APLBA",
           targetfile = "11935.pdf",
        urlaccessdate = "20 maio 2024"
}