Comparative measurement analysis of side scan radar flow measuring system
According to the side scan radar flow velocity and measured flow velocity data at Yangshuo Hydrological Station,combined with the typical rainstorm flood process,analysis was made on the application of side scan radar flow measuring system at Yangshuo station.The results of analysis demonstrate the side scan radar water surface flow velocity and the measured water surface flow velocity are mainly concentrated in the main channel of the river;the maximum flow velocity varies near the thalweg with the variation of water level;the vertical flow velocity of side scan radar is larger than the measured velocity and the proportion of the deviation increases with the increase of wa-ter level;the relative error between the side scan flow velocity and the measured velocity is significant at low water level,which is the main reason for the large error in curve alignment accuracy.The segmented calibration results of side scan radar are applicable for the flow measurement at Yangshuo Hydrological Station.
side scan radarwater surface flow velocitycomparative measurement analysisYangshuo Hydrological Station