走航式ADCP在河流测流中的应用

近年来采用走航式ADCP进行河流流量的测量方法已得到了广泛地应用,与传统的流速仪法相比效率更高。以某专用水文站流量观测为例,介绍了走航式ADCP在河流流量测量中的应用,以及与流速仪法测得的结果对比情况。实际施测结果表明,ADCP在流况简单、含沙量较小、河床稳定的河流流量测量中是可行的。但在含沙量大、河底推移质运动明显的河流使用是否可行,以及如何减小误差还有待探讨。

Application of Vessel-mounted ADCP to River Flow Measurement

In recent years,vessel-mounted ADCP has been widely applied to river flow measurement,which is more efficient than traditional flow velocity devices.Using the observed data of an exclusive hydrological station,the paper introduces the application of vessel-mounted ADCP to river flow measurement and compares the data with those of flow velocity device.The results indicate that it is feasible to use ADCP in rivers with simple flow condition,low sediment content and stable riverbed.However,further study is needed regarding whether ADCP can be used in rivers with high sediment content and obvious load movement in riverbed,and how to reduce errors.