摘要
丹江口水库上游河流冲刷、泥沙淤积沉淀使水库库容发生了变化,进而影响水库的供水效益和生态效益,有必要对水库泥沙进行监测。提出在无人船平台上,采用双频回声仪配合千寻系统获取高、低频两种水深的水下地形图,然后根据两种水深的水下地形图相减获得淤泥厚度图,完成对水库的水文泥沙监测,并在丹江口水库实地测试。结果表明,该方法具有较高的精度和效率,可为丹江口水库水文泥沙监测提供技术支持,以更好地发挥水库的综合效益。
The scouring of rivers in the upper areas of Danjiangkou Reservoir and sediment deposition in the Danjiangkou Reservoir have changed the reservoir capacity,thus affecting the water supply and ecological benefits of the reservoir.Therefore,it is necessary to monitor sediment.This paper introduces a dual-frequency echo system which can acquire the underwater topographic maps of high and low frequencies on unmanned ship platform,and by subtracting the underwater topographic maps of the two depths,the silt thickness maps can be obtained,realizing the monitoring of reservoir sediment.The field test in Danjiangkou Reservoir showed that the method has high accuracy and efficiency and can provide reliable technical support for hydrological sediment monitoring of Danjiangkou Reservoir.The system can help the reservoir play the better comprehensive benefits.
作者
李振鹏
涂进
LI Zhenpeng;TU Jin(Hanjiang Hydrological and Water Resources Survey Bureau,Hydrology Bureau of Yangtze River Water Resources Commission,Xiangyang 432001,China)
出处
《水利水电快报》
2020年第5期20-23,共4页
Express Water Resources & Hydropower Information
关键词
智慧无人船
水文泥沙监测
克里金插值
水面高程
淤泥厚度
丹江口水库
汉江
intelligent unmanned vehicle
hydrological sediment monitoring
Kriging Interpolation
water level
silt thickness
Danjiangkou Reservoir
Hanjiang River
