Abstract
We present a particle model for investigating the dynamics of the electrical discharge referred to as “sprite halo” in the upper atmosphere above thundercloud. Based on the solution of quasi-electrostatic (QE) field, we apply the Monte Carlo collision scheme for simulating sprite halos produced by the sudden removal of thundercloud charge ( e.g. , a lightning discharge). The particle simulation is applied at the altitude over 60 km in which electron conductivity governs the total conductivity. The charges of 200 C, 250 C and 300 C are assumed as removed from thundercloud at an altitude of 5 km within 1 ms. The present model demonstrates the electron energy distribution with a high-energy tail as consistent with the previous theoretical deduction. The simulation results are in good agreement with the observations and the theoretical research.
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