What causes 'positive' lightning to be rarer, higher charged, and longer lasting than 'negative' lightning?

Question

Why is 'positive' lightning rarer, brighter, higher charged, and longer lasting than 'negative' lightning? Are there any other unique characteristics to positive lightning that sets it apart from more common negative lightning? **Positive Lightning vs Negative Lightning** - Rarity: 1:10 - 1:20 (on average) - Charge: 10:1 (on average) (I'd imagine that brightness and duration are correlated to the charge).

Answer 1

Positive lightning, involved charged positive ions moving, which are very large compared to electrons, negative lightning is essentially a flow of electricity, free electrons along a channel created through a medium.