@Article{FariasPintPintNacc:2014:EvWeCy,
               author = "Farias, Wendell Rondinelli Gomes and Pinto Junior, Osmar and 
                         Pinto, Iara Regina Cardoso Almeida and Naccarato, Kleber 
                         Pinheiro",
          affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "The influence of urban effect on lightning activity: Evidence of 
                         weekly cycle",
              journal = "Atmospheric Research",
                 year = "2014",
               volume = "135-136",
                pages = "370--373",
             keywords = "lightning activity, urban areas, weekly cycle, aerosol, 
                         statistical significance.",
             abstract = "A cloud-to-ground (CG) lightning data provided by the Brazilian 
                         lightning detection network (BrasilDAT) for a ten year period 
                         (19992008), and particulate matter (PM10), sulfur dioxide (SO2) 
                         and air temperature data from the environmental agency of S{\~a}o 
                         Paulo State (CETESB) for the same period, were examined in order 
                         to look for the influence of urban effect and weekly cycles in 
                         lightning activity over metropolitan region of S{\~a}o Paulo 
                         (MRSP). The results show that there is a significant weekly cycle 
                         in PM10 over the MRSP and lightning activity (CG lightning) on the 
                         area involving the MRSP, Campinas and S{\~a}o Jose dos Campos 
                         regions, both with reduction on the weekend. The average number of 
                         flash per storm and air temperature in three different ranges of 
                         PM10 concentrations was also examined. For the first one, there is 
                         an increase of the average number of flash per storm from low to 
                         intermediate range and a trend to decrease from intermediate to 
                         high range. However, the air temperature tends to stay the same in 
                         all ranges. These results suggest that pollution tends to saturate 
                         the intensification of storms and lightning activity in a specific 
                         level. After that, the increase of aerosols provided by pollution 
                         tends to decrease the lightning activity.",
                  doi = "10.1016/j.atmosres.2012.09.007",
                  url = "http://dx.doi.org/10.1016/j.atmosres.2012.09.007",
                 issn = "0169-8095",
                label = "self-archiving-INPE-MCTI-GOV-BR",
             language = "en",
           targetfile = "farias el al 2013.pdf",
                  url = "http://dx.doi.org/10.1016/j.atmosres.2012.09.007",
        urlaccessdate = "08 maio 2024"
}