Table 4. Intensity and frequency of... | Emerald Publishing

Table 4.

Intensity and frequency of failure-related rainfall events (source: Jiang and Tan, 2022)

Grade	Rainfall intensity: mm/day	Relative frequency of occurrence: %
1 Light rain	0.1–9.9	0.0
2 Moderate rain	10.0–24.9	0.8
3 Heavy rain	25.0–49.9	49.2
4 Torrential rain	50.0–99.9	31.2
5 Severe torrential rain	100.0–249.9	14.6
6 Extreme torrential rain	≥250	4.2

Grade	Rainfall intensity: mm/day	Relative frequency of occurrence: %
1 Light rain	0.1–9.9	0.0
2 Moderate rain	10.0–24.9	0.8
3 Heavy rain	25.0–49.9	49.2
4 Torrential rain	50.0–99.9	31.2
5 Severe torrential rain	100.0–249.9	14.6
6 Extreme torrential rain	≥250	4.2