Some theoretical aspects of electric field and precipitation growth in a finite thundercloud |
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Authors: | Pratap Singh T S Verma N C Varshneya |
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Institution: | 1. Department of Physics, University of Roorkee, 247 667, Roorkee, India
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Abstract: | A time-dependent numerical model allowing a simulation of the electric field and precipitation growth in a thundercloud of finite dimensions is described. It is found that slower growth rate (compared to an infinite thundercloud) of the electric field in a finite thundercloud permits larger size growth and higher terminal velocities of hydrometeors owing to an enhancement in precipitation intensity. Calculations also show that a higher maximum of the electric field is needed to slow down the larger particles produced in a thundercloud of finite dimensions. In particular, these solutions also include contribution of screening charge transport in thundercloud electrification. |
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