H-ADCP流速比测分析中误差校正的方法探讨

Discussion on error correction method for flow velocity comparative measurement analysis with H-ADCP

针对H-ADCP系统流速比测分析中方案合格率偏低的情况,以实测平均流速为水体传播速度对实测流量进行相关插补,校正H-ADCP设备安装断面与比测断面不重合导致的实测平均流速与指标流速拟合误差。通过水文调查,参考多年实测流量,校正比测资料不充分造成的流量资料整编误差,这一方法在宜州刘三姐水文站可行。

Aiming at the low scheme qualification rate of flow velocity comparative measurement analysis with HADCP system, relevant interpolation of measured flow was made with the measured average flow velocity as water propagation speed, so as to correct the fitting error between measured average velocity and inedx velocity resulted from the installation section of H-ADCP equipment not coinciding with the comparative measuring section. At Liusanjie Hydrological Station of Yizhou City, hydrological survey and reference to years of measured flow data is feasible method for correcting the flow data compilation error caused by insufficient comparative measurement data.