@Article{DiasJúniorSáPachSouz:2013:CoStDe,
               author = "Dias J{\'u}nior, Cl{\'e}o Quaresma and S{\'a}, Leonardo Deane 
                         de Abreu and Pach{\^e}co, Vanusa Bezerra and Souza, Cledenilson 
                         Mendon{\c{c}}a de",
          affiliation = "{Instituto Nacional de Pesquisas da Amaz{\^o}nia (INPA)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Federal do Amazonas} and {Instituto Nacional de 
                         Pesquisas da Amaz{\^o}nia (INPA)}",
                title = "Coherent structures detected in the unstable atmospheric surface 
                         layer above the Amazon forest",
              journal = "Journal of Wind Engineering and Industrial Aerodynamics",
                 year = "2013",
               volume = "115",
                pages = "1--8",
                month = "Apr.",
             keywords = "intera{\c{c}}ao floresta-atmosfera, turbul{\^e}ncia, estruturas 
                         coerentes, perfil de vento, ponto de inflex{\~a}o, wavelets, 
                         turbulence, coherent structures, roughness sub-layer, wind 
                         profile, shear instability, time-scales.",
             abstract = "Some characteristics of the turbulence structure above primary 
                         forest localized in the south-western Amazon are analyzed. The 
                         data was collected in 60. m height meteorological tower erected in 
                         Rebio-Jar{\'u} Reserve, Brazil. The Morlet's wavelet is used to 
                         detect coherent structures (CS) {"}ramp{"} time scales from 
                         turbulent virtual temperature data measured above forest, under 
                         day-time conditions. It is shown that there is a close 
                         relationship between time scale of the coherent structure (TCS) 
                         and the height to the inflection point in the mean wind speed 
                         profile (IP). A time scale associated with the IP is used to 
                         provide useful information on inside canopy penetration flow in 
                         order to be compared with the CS time-scale. The results show a 
                         very robust correlation between these two time scales (for 144 
                         half-hourly data sets, a correlation coefficient value of 0.9 have 
                         been obtained). Such results provide new insights regarding shear 
                         instability and turbulent eddy characteristics above tall 
                         vegetation, in the surface roughness sub-layer (SRS).",
                  doi = "10.1016/j.jweia.2012.12.019",
                  url = "http://dx.doi.org/10.1016/j.jweia.2012.12.019",
                 issn = "0167-6105",
                label = "scopus",
             language = "en",
           targetfile = "1-s2.0-S0167610513000196-main.pdf",
                  url = "http://dx.doi.org/10.1016/j.jweia.2012.12.019",
        urlaccessdate = "29 jun. 2024"
}