@InProceedings{CamposSaba:2012:CoAn,
               author = "Campos, Leandro Zanella de Souza and Saba, Marcelo Magalh{\~a}es 
                         Fares",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Electric field waveforms of M components in negative and positive 
                         ground flashes: A comparative analysis",
            booktitle = "Proceedings...",
                 year = "2012",
         organization = "International Conference on Lightning Protection, 31. (ICLP).",
            publisher = "IEEE Computer Society",
              address = "Washington",
                 note = "Informa{\c{c}}{\~o}es Adicionais: There has been some discussion 
                         concerning the nature of luminosity pulses observed during the 
                         continuing currents of positive cloud-to-ground flashes. It still 
                         undefined whether or not these pulses can be considered M 
                         components when compared to similar events observed in negative 
                         flashes. In the present paper we expand this discussion by 
                         analyzing electric field waveforms associated with channel 
                         luminosity enhancements of both negative and positive ground 
                         flashes. Typically, negative M components are preceded by 
                         high-frequency pulses similar to those that can are associated to 
                         recoil leaders that are visible below cloud base. On the other 
                         hand, luminous processes in positive flashes (similar to M 
                         components) did not present a particularly common electric field 
                         signature, and no pulses could be positively correlated to their 
                         inception inside the cloud. We believe that this polarity 
                         asymmetry favors previous theories on the production of negative M 
                         components according to the bidirectional leader model. The 
                         distinctive features of the positive M components suggest that 
                         they are related to different processes..",
             keywords = "M Components, Recoil leaders, Atmospheric Electricity, 
                         Bidirectional leader model.",
             abstract = "There has been some discussion concerning the nature of luminosity 
                         pulses observed during the continuing currents of positive 
                         cloud-to-ground flashes. It still undefined whether or not these 
                         pulses can be considered M components when compared to similar 
                         events observed in negative flashes. In the present paper we 
                         expand this discussion by analyzing electric field waveforms 
                         associated with channel luminosity enhancements of both negative 
                         and positive ground flashes. Typically, negative M components are 
                         preceded by high-frequency pulses similar to those that can are 
                         associated to recoil leaders that are visible below cloud base. On 
                         the other hand, luminous processes in positive flashes (similar to 
                         M components) did not present a particularly common electric field 
                         signature, and no pulses could be positively correlated to their 
                         inception inside the cloud. We believe that this polarity 
                         asymmetry favors previous theories on the production of negative M 
                         components according to the bidirectional leader model. The 
                         distinctive features of the positive M components suggest that 
                         they are related to different processes.",
  conference-location = "Vienna Vienna",
      conference-year = "2 - 7 Set., 2012",
                  doi = "10.1109/ICLP.2012.6344338",
                  url = "http://dx.doi.org/10.1109/ICLP.2012.6344338",
                 isbn = "9781467318976",
                label = "lattes: 4161737266837399 1 CamposSaba:2012:CoAn",
             language = "en",
               volume = "1",
        urlaccessdate = "30 abr. 2024"
}