秋汛期条件概率 夏汛期等级 | <20% | <10% | <5% | <2% | <1% |
小洪水 | 82.1% | 91.1% | 95.6% | 98.2% | 99.1% |
中等洪水 | 72.1% | 85.7% | 92.8% | 97.1% | 98.5% |
大洪水 | 70.7% | 84.9% | 92.3% | 96.9% | 98.4% |