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@PhDThesis{MirandaCerda:2010:SyInTu,
               author = "Miranda Cerda, Rodrigo Andr{\'e}s",
                title = "Synchronization in intermittent turbulence and spatiotemporal 
                         chaos in the solar-terrestrial environment",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "2010",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "2010-03-01",
             keywords = "synchronization, turbulence, spatiotemporal chaos, intermittency, 
                         coherent structures, sincroniza{\c{c}}{\~a}o, turbul{\^e}ncia, 
                         caos espa{\c{c}}otemporal, intermit{\^e}ncia, estruturas 
                         coerentes.",
             abstract = "Neste trabalho de Tese analisamos a sincroniza{\c{c}}{\~a}o 
                         devido a intera{\c{c}}{\~o}es entre escalas em 
                         observa{\c{c}}{\~o}es de turbul{\^e}ncia intermitente e em 
                         simula{\c{c}}{\~o}es num{\'e}ricas de intermit{\^e}ncia 
                         espa{\c{c}}o-temporal em fluidos neutros e plasmas espaciais. 
                         Este estudo {\'e} feito em duas partes. Primeiro, aplicamos duas 
                         t{\'e}cnicas n{\~a}o-lineares, curtose e {\'{\i}}ndice de 
                         coer{\^e}ncia de fase, para medir o grau de 
                         n{\~a}o-Gaussianidade e sincroniza{\c{c}}{\~a}o de fase da 
                         turbul{\^e}ncia de campo magn{\'e}tico intermitente observada no 
                         vento solar, na fotosfera solar e no solo, e da turbul{\^e}ncia 
                         atmosf{\'e}rica intermitente observada na copa da floresta 
                         Amaz{\^o}nica. Depois, analisamos um modelo espacialmente 
                         estendido de ondas n{\~a}o-lineares em fluidos e plasmas para 
                         identificar estruturas coerentes transientes, respons{\'a}veis 
                         pela intermit{\^e}ncia \texteit{on-off} espa{\c{c}}o-temporal 
                         observada nas s{\'e}ries temporais da energia. Quantificamos o 
                         grau de sincroniza{\c{c}}{\~a}o de amplitude e fase usando a 
                         entropia espectral de pot{\^e}ncia e de fase no regime logo 
                         depois da transi{\c{c}}{\~a}o para caos espa{\c{c}}o-temporal. 
                         Os resultados observacionais e te{\'o}ricos indicam que a 
                         sincron{\'{\i}}za{\c{c}}{\~a}o de amplitude e fase pode ser a 
                         origem da intermit{\^e}ncia na turbul{\^e}ncia completamente 
                         desenvolvida no ambiente solar-terrestre. ABSTRACT: In this work 
                         we analyze synchronization due to multiscale interactions in 
                         observations of intermittent turbulence and numerical simulations 
                         of spatiotemporal intermittency in neutral fluids and space 
                         plasmas. This study is carried out in two parts. First, we apply 
                         two distinct nonlinear techniques, kurtosis and phase coherence 
                         index, to measure the degree of non-Gaussianity and phase 
                         synchronization of intermittent magnetic field turbulence observed 
                         in the ambient solar wind, in the solar photosphere and in the 
                         ground, and intermittent atmospheric turbulence observed in the 
                         Amazon rain forest canopy. Next, we analyze a spatially-extended 
                         model of nonlinear waves in fluids and plasmas to identify 
                         transient coherent structures responsible for the on-off 
                         spatiotemporal intermittency observed in the time series of 
                         energy. We quantify the degree of amplitude-phase synchronization 
                         using the power-phase spectral entropy at the onset of 
                         spatiotemporal chaos. The observational and theoretical results 
                         indicate that the amplitude-phase Synchronization may be the 
                         origin of intermittency in fully-developed turbulence in the 
                         solar-terrestrial environment.",
            committee = "Lago, Alisson Dal (presidente) and Long-Chian, Abraham Chian 
                         (orientador) and Rempel, Erico (orientador) and Sobral, Jos{\'e} 
                         Humberto Andrade and Rizzato, Felipe Barbedo and Valdivia, Juan 
                         Alejandro",
           copyholder = "SID/SCD",
         englishtitle = "Sincroniza{\c{c}}{\~a}o em turbul{\^e}ncia intermitente e caos 
                         espa{\c{c}}o-temporal no ambiente solar-terrestre",
             language = "en",
                pages = "153",
                  ibi = "8JMKD3MGP7W/37DH6JE",
                  url = "http://urlib.net/rep/8JMKD3MGP7W/37DH6JE",
           targetfile = "publicacao.pdf",
        urlaccessdate = "25 jul. 2021"
}


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