Table 2 Classification criterion of rainfall intensity in China
From: Effect of long duration rainstorm on stability of Red-clay slopes
Classification | Weak-rain | Middle-rain | Heavy-rain | Rainstorm | |||
|---|---|---|---|---|---|---|---|
I | II | III | |||||
Value based on 24Â h (mm) | <10 | <25 | <50 | <100 | <200 | >200 | |
Value based on 12Â h (mm) | <5 | <10 | <30 | <70 | <140 | >140 | |
Uniform pattern (m/h) | 24Â h style | <4.2E-04 | <1.0E-03 | <2.1E-03 | <4.2E-03 | <8.3E-03 | >8.3E-03 |
Uniform pattern (m/h) | 12Â h style | <2.1E-04 | <4.2E-04 | <1.3E-03 | <2.9E-03 | <5.8E-03 | >5.8E-03 |