摘要
水平式多普勒流速仪流量自动监测是解决受水利工程影响的水文测站流量测验的主要手段,但资料的整编方法单一、精度不易控制。对采用比例系数过程线法的自动监测资料整编问题进行了探讨,介绍了使用该方法整编的基本思路、数据处理方式和整编步骤,并应用于襄阳站和小河坝站水文资料整编的工作实践中。与传统水位流量关系定线率定法相比,比例系数过程线法误差小、精度高,能够大幅度减小主流摆动,以及断面冲淤、回水顶托等因素的影响,具有较强的应用推广价值。
The automatic monitoring by horizontal type acoustic Doppler velocimeter is a main approach to flow measurement of the hydrological stations affected by water conservancy projects,but the method of data compilation is unitary and the precision control is difficult.This paper discusses compilation method of the automatically measured data by proportional coefficient hydrograph.The basic thought,data processing method and compilation steps are introduced.This method is applied in the compilation of hydrological data measured at Xiangyang and Xiaoheba Stations on Hanjiang River.Compared with the conventional calibration of water level-discharge curves,the presented method has advantage of higher precision and lower error.By using this method,the influences such as mainstream swing,cross-section scouring-erosion and backwater effect can be greatly mitigated.
出处
《人民长江》
北大核心
2013年第15期26-29,共4页
Yangtze River
关键词
流量自动监测
水利工程影响
资料整编
比例系数过程线法
automatic monitoring of flow
water conservancy project influence
data compilation
proportional coefficient hydrograph
