Microphysical, dynamical, and lightning processes associated with anomalous charge structures in isolated convection
Internal storm charge structures are linked to storm microphysics and dynamics. This study leverages available radar-based microphysical and dynamical information from recent field campaigns to investigate the processes that influence storm-scale charge structures. Nine normal polarity (mid-level negative charge) cases that occurred in northern Alabama, and six anomalous polarity (mid-level positive charge) cases that occurred in northeastern Colorado are studied in detail. The results suggest the presence of positively charged mid-level graupel in anomalous polarity storms, which is consistent ...
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