Abstract
Intracloud lightning discharges are simulated in 12.5 m (fine) and 250 m (coarse) resolution for 2‐dimensional domain by using an improved Stochastic Lightning Model. Simulation results indicate that the bi‐level branched channel structure, horizontal extending ranges and maximum vertical electric field changes obtained from fine resolution lightning model are in better agreement with previously observed data than those from coarser model. The IC flash channels from fine lightning model have the fractal feature with fractal dimension of 1.43, and propagation tendency is dependent on the potential distribution. In addition, fine resolution lightning modeling shows that after IC flash initiation at the boundary between positive and negative potential zones, potential wells attract the leaders of opposite polarity into the central area and prevent their outward expansion. Leaders can propagate throughout regions of net charge of the opposite polarity, but they avoid the isolated charge areas of the same polarity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
