分级 | 时间 | 水位(m) | Q实 | Q时差法 | 相对误差(%) |
(m³/s) | (m³/s) | ||||
高水 | 2020-6-23 23:52 | 996.07 | 5910 | 5667 | −4.1 |
2020-6-28 9:15 | 994.66 | 4710 | 4742 | 0.7 | |
2020-6-29 9:06 | 995.1 | 5160 | 5157 | −0.1 | |
2020-7-15 9:32 | 994.02 | 4130 | 4279 | 3.6 | |
2020-7-19 10:44 | 995.36 | 5090 | 5375 | 5.6 | |
2020-7-21 7:56 | 996.28 | 5820 | 5890 | 1.2 | |
2020-7-28 9:40 | 995.67 | 5300 | 5458 | 3.0 | |
随机不确定度(%) | 9 | ||||
中水 | 2020-5-18 9:10 | 989.08 | 1450 | 1520 | 4.8 |
2020-6-1 9:53 | 990.64 | 2140 | 2167 | 1.2 | |
2020-6-10 10:36 | 990.26 | 1940 | 1910 | −1.5 | |
2020-6-16 11:26 | 991.76 | 2760 | 2809 | 1.8 | |
2020-6-18 9:24 | 992.22 | 3140 | 3063 | −2.5 | |
2020-7-1 9:24 | 993.47 | 3850 | 3728 | −3.2 | |
2020-7-8 11:10 | 991.32 | 2500 | 2614 | 4.6 | |
2020-7-17 9:10 | 992.65 | 3210 | 3364 | 4.8 | |
2020-7-18 10:40 | 993.1 | 3490 | 3628 | 4.0 | |
2020-10-27 9:18 | 990.74 | 2240 | 2283 | 1.9 | |
2020-10-30 9:37 | 991.3 | 2540 | 2545 | 0.2 | |
2020-11-1 9:45 | 989.41 | 1630 | 1666 | 2.2 | |
2020-11-7 10:36 | 990.58 | 2190 | 2199 | 0.4 | |
2021-1-22 16:28 | 988.93 | 1480 | 1425 | −3.7 | |
随机不确定度(%) | 7 | ||||
低枯水 | 2020-11-18 11:26 | 986.37 | 504 | 530 | 5.1 |
2021-1-10 9:22 | 987.06 | 694 | 722 | 4.0 | |
2021-2-23 11:16 | 987.03 | 685 | 704 | 2.8 | |
2021-3-13 16:22 | 987.69 | 889 | 930 | 4.6 | |
2021-3-18 9:15 | 986.48 | 498 | 516 | 3.6 | |
整体系统误差(%) | 1.7 | 整体随机不确定度(%) | 7 |