@InProceedings{RamosCampMacaRosa:2006:SeChCo,
               author = "Ramos, Fenando Manuel and Campanharo, Adriana S. L. O. and Macau, 
                         Elbert Einstein Neher and Rosa, Reinaldo Roberto",
          affiliation = "Instituto Nacional de Pesquisas Espaciais, Laborat{\'o}rio 
                         Associado de Computa{\c{c}}{\~a}o e Matem{\'a}tica Aplicada 
                         (INPE.LAC) and Instituto Nacional de Pesquisas Espaciais, 
                         Laborat{\'o}rio Associado de Computa{\c{c}}{\~a}o e 
                         Matem{\'a}tica Aplicada (INPE.LAC) and Instituto Nacional de 
                         Pesquisas Espaciais, Laborat{\'o}rio Associado de 
                         Computa{\c{c}}{\~a}o e Matem{\'a}tica Aplicada (INPE.LAC) and 
                         Instituto Nacional de Pesquisas Espaciais, Laborat{\'o}rio 
                         Associado de Computa{\c{c}}{\~a}o e Matem{\'a}tica Aplicada 
                         (INPE.LAC)",
                title = "Searching chaos and coherent structures in the atmospheric 
                         turbulence above the Amazon forest",
            booktitle = "Proceedings...",
                 year = "2006",
         organization = "Experimental Chaos Conference, 9.",
             abstract = "Amazonia is one of the last great tropical forest domains, the 
                         largest hydrological system in the planet, and plays an important 
                         role in the function of regional and global climates. Many aspects 
                         of this fragile and highly complex system remain unclear for the 
                         scientific community. A subject of great relevance for derstanding 
                         how the Amazon terrestrial biosphere interacts with the atmosphere 
                         is the correct modeling of the turbulent exchange of heat, 
                         humidity, greenhouse gases, and other scalars at the vegetationair 
                         interface. Here we investigate the possible chaotic nature of the 
                         turbulence of the atmospheric boundary layer above the forest. For 
                         this, we use fast-response (60 Hz) experimental temperature and 
                         wind velocity data obtained during the wet-season campaign of the 
                         large-scale biosphereatmosphere experiment in Amazonia (known as 
                         the LBA project), carried out during the months of JanuaryMarch 
                         1999, in the southwestern part of the Brazilian Amazonia. Our 
                         results show that, under certain circumstances, large coherent 
                         structures control turbulence dynamics at the forest canopy. In 
                         this particular context, temperature data exhibit ramp-like 
                         patterns whose dynamical properties are consistent with 
                         deterministic chaos, and support the existence of a 
                         low-dimensional chaotic attractor in the atmosphere, with 
                         correlation dimension between 3 and 4, and the largest Lyapunov 
                         exponent slightly positive.",
  conference-location = "S{\~a}o Jos{\'e} dos Campos, SP",
      conference-year = "29 may - 01 june",
           copyholder = "SID/SCD",
                 isbn = "85-17-00025-0",
             language = "en",
           targetfile = "Searching chaos and coherent structures.pdf",
        urlaccessdate = "13 maio 2024"
}