
Research on Flood Forecasting Method Considering the Influence of Small Reservoir with Missing Data
Zhao-hua YANG, Jun WANG, Zhong-min LIANG, Bin-quan LI, Yu-peng FU
Research on Flood Forecasting Method Considering the Influence of Small Reservoir with Missing Data
A large number of small reservoirs built in the basin may change the natural characteristics of the flood, and the data of small reservoirs are often missing or incomplete, which makes it difficult to consider the regulation and storage function in flood forecasting, and brings difficulties to flood forecasting. Based on RS, GIS and SVR algorithm, the relationship model of topography and geomorphology parameters and reservoir capacity is constructed to calculate the small reservoir capacity information in the area where the reservoir data is missing. Based on the quantitative generalization of the impact of small reservoirs on flood detention, the XAJ-reservoir (XAJ-R) model is established. The results show that: ① there is a strong correlation between the total storage capacity of small reservoirs and the characteristics of topography and geomorphology, and the established model of topography and geomorphology parameters and reservoir storage capacity has a high accuracy, which can be used to calculate the storage capacity of small reservoirs with missing data. ② After adding the reservoir retention module, the flood prediction accuracy of XAJ model is improved to a certain extent. The research findings can be used as a reference for real-time flood prediction in the area affected by small-scale water conservancy projects.
flood forecast / small reservoir impact / lack of reservoir data / topography and geomorphology parameters / XAJ-R model {{custom_keyword}} /
Tab.1 Statistics of small reservoirs in Beimiaoji and adjacent basins表1 北庙集及临近流域小型水库资料情况 |
流域 | 资料情况 | 水库数量/座 | 总库容之和/ 万m3 |
---|---|---|---|
北庙集 | 有资料 | 35 | 4 963.8 |
无资料 | 14 | - | |
临近流域 | 有资料 | 60 | 14 095.2 |
Tab.2 Pearson correlation coefficient analysis表2 皮尔逊相关系数分析 |
V | F | L | S | R | |
---|---|---|---|---|---|
V | 1.00 | ||||
F | 0.72** | 1.00 | |||
L | 0.71** | 0.96** | 1.00 | ||
S | -0.04 | -0.054 | 0.03 | 1.00 | |
R | 0.07 | 0.23* | 0.36* | 0.82** | 1.00 |
Fig.4 Calibration and verification results of total capacity of small reservoirs图4 小型水库总库容率定及验证结果 |
Tab.3 Calibration and verification results of accumulated total capacity of small reservoirs表3 小型水库累计总库容率定及验证结果 |
实际总库容/万m3 | 计算总库容/万m3 | 绝对误差/万m3 | 相对 误差/% | |
---|---|---|---|---|
临近流域率定 | 1 4095.2 | 14 054.4 | -40.8 | -0.3 |
北庙集验证 | 4 963.8 | 4 116.9 | -846.9 | -17.1 |
Tab.4 Calculation results of total reservoir capacity表4 北庙集小型水库库容推算结果 (万m3) |
水库名称 | 鲁营子水库 | 蛤蚂塘水库 | 姚榜水库 | 黄寨水库 | 胡寨水库 | 洪庄水库 | 陈寨水库 |
---|---|---|---|---|---|---|---|
计算总库容 | 40.41 | 48.05 | 13.03 | 57.40 | 109.70 | 113.56 | 62.78 |
水库名称 | 八面山水库 | 南马冲水库 | 天井水库 | 陶家山水库 | 张大堰水库 | 古塘水库 | 李楼水库 |
计算总库容 | 116.45 | 80.60 | 47.75 | 86.92 | 224.98 | 161.02 | 161.12 |
Tab.5 Comparison of results between XAJ-R model and XAJ Model表5 新安江-水库模型与新安江模型结果对比 |
参数 | 洪水编号 | 实测洪峰/( | 洪峰误差/% | 洪峰滞时/h | 确定性系数 | |||
---|---|---|---|---|---|---|---|---|
XAJ | XAJ-R | XAJ | XAJ-R | XAJ | XAJ-R | |||
率定期 | 20070630 | 1 490 | 19.6 | -1.6 | -1 | 1 | 0.80 | 0.81 |
20080816 | 861 | 22.1 | 1.1 | -5 | -3 | 0.90 | 0.92 | |
20090524 | 340 | 25.0 | 1.8 | -2 | 0 | 0.94 | 0.97 | |
20120908 | 537 | 29.8 | 5.4 | 2 | 3 | 0.79 | 0.79 | |
20140831 | 498 | 52.2 | 22.5 | 0 | 1 | 0.68 | 0.87 | |
20150627 | 948 | 2.4 | -16.7 | -2 | -1 | 0.81 | 0.77 | |
20160630 | 547 | 74.2 | 39.7 | -1 | 1 | 0.64 | 0.91 | |
验证期 | 20170709 | 1 080 | 64.2 | 30.8 | -2 | -1 | 0.54 | 0.83 |
20180505 | 686 | 37.0 | 9.6 | -1 | 0 | 0.81 | 0.88 |
1 |
葛于晋,何斌,梁国华,等. 考虑上游中小型水库影响的北方地区洪水预报方法研究[J]. 水资源与水工程学报,2015,26(5):141-146.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
2 |
张顾,王加虎,李丽,等.设计安全值结合水文模型的联合预报法在入库洪水预报中的应用[J].中国农村水利水电,2018(11):55-60.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
3 |
范火生.基于栅格的分布式新安江模型在三岔河流域的洪水预报研究[J].中国农村水利水电,2019(2):113-118.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
4 |
刘慧媛,夏军,邹磊,等.基于时变增益水文模型的实时预报研究[J].中国农村水利水电,2019(6):16-22.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
5 |
王婕,宋晓猛,张建云,等.中小尺度流域洪水模型模拟比较研究[J].中国农村水利水电,2019(7):72-76.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
6 |
刘松,张利平,佘敦先,等.干旱半干旱地区流域水文模型的适用性[J].武汉大学学报(工学版),2019(5):384-390.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
7 |
郭生练,王金星,彭辉,等. 考虑人类活动影响的丰满水库洪水预报方案[J]. 水电能源科学,2000(2):14-17.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
8 |
沈清德, 全鸿烈. 水库上游水利工程对中小型水库洪水预报的影响[J]. 东北水利水电,2002(3):43-44.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
9 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
10 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
11 |
崔欢欢. 考虑水利工程影响的水库洪水预报方案研究[D]. 辽宁大连:大连理工大学,2017.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
12 |
魏子钧,梁国华,葛于晋,等. 考虑上游水利工程影响的产流预报方法研究[J]. 南水北调与水利科技, 2014,12(6):49-52.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
13 |
戴仕宝,周亮广,叶雷, 等. 江淮丘陵地区塘坝系统水适应性机制与测度分析[J]. 南水北调与水利科技, 2018,16(5):41-49.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
14 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
15 |
李伶杰,王银堂,胡庆芳,等.基于随机森林与支持向量机的水库长期径流预报[J].水利水运工程学报,2020(4):33-40.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
{{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
/
〈 |
|
〉 |