Table 1 Threshold values of lightning rate and ice fraction for the three selected groups.
From: Cloud ice fraction governs lightning rate at a global scale
| Â | Group-1 | Group-2 | Group-3 |
|---|---|---|---|
Lightning rate (fl km−2 d−1) | 0.01–0.02 | >0.04 | 0.01–0.02 |
Ice fraction | <0.15 | 0.15–0.35 | >0.35 |