@InProceedings{GomesChiRemRamSil:2018:RoCuSh,
               author = "Gomes, Tiago Francisco Pinheiro and Chian, Abraham Chian Long and 
                         Rempel, Erico Luiz and Ramos, Fernando Manuel and Silva, Suzana de 
                         Souza e Almeida",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {University 
                         of Adelaide} and {Instituto Tecnol{\'o}gico da Aeron{\'a}utica 
                         (ITA)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Tecnol{\'o}gico da Aeron{\'a}utica (ITA)}",
                title = "The role of current sheets on the statiscal modellng of extreme 
                         events for spatial-time series in the solar wind",
                 year = "2018",
         organization = "Latin American Conference on Space Geophysics, 11. (COLAGE)",
             abstract = "The solar wind constitutes a nonlinear dynamical system, 
                         presenting intermittent turbulence, multifractality and chaotic 
                         dynamics. One characteristic shared by many such complex systems 
                         is the presence of extreme events, that play an important role in 
                         several Geophysical phenomena and their statistical 
                         characterization is a problem of great practical relevance. This 
                         work investigates the presence of extreme events in time series of 
                         the modulus of the interplanetary magnetic eld measured by Cluster 
                         1 spacecraft. One of the main results is that the solar wind near 
                         the Earths bow shock can be modeled by the Generalized Pareto (GP) 
                         and Generalized Extreme Values (GEV) distributions. Both models 
                         present a statistically signicant positive shape parameter, 
                         implying a heavy tail in the probability distribution functions 
                         and an unbounded growth in return values as return periods become 
                         very long. There is evidence that current sheets are the main 
                         responsible for positive values of the shape parameter. In 
                         addition, we will perform the same statistical analysis on 
                         simulated data for current sheets in the solar wind environment 
                         using spatio-time series. It is also shown that magnetic 
                         reconnection at the interface between two interplanetary magnetic 
                         ux ropes in the solar wind can be considered as Dragon Kings (DK), 
                         which are a class of extreme events whose formation mechanisms are 
                         fundamentaly dierent from others, thus opening the possibility of 
                         their identication, prediction and even suppression. Dragon kings 
                         had previously been identied in time series of nancial crashes, 
                         nuclear power generation accidents, stock market and so on, and it 
                         is believed that they are associated with the occurrence of 
                         extreme events in dynamical systems at phase transition, 
                         bifurcation, crises or tipping points.",
  conference-location = "Buenos Aires, Argentina",
      conference-year = "16-20 abr.",
             language = "en",
        urlaccessdate = "28 abr. 2024"
}