秋汛期条件概率 夏汛期7d洪量等级 | <20% | <10% | <5% | <2% | <1% |
小洪水 | 81.4% | 90.8% | 95.3% | 98.1% | 99.1% |
中等洪水 | 71.7% | 85.5% | 92.5% | 97.0% | 98.5% |
大洪水 | 70.4% | 84.7% | 92.1% | 96.8% | 98.4% |