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侧扫雷达测流系统比测分析

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根据阳朔水文站侧扫雷达流速与实测流速数据,结合典型场次暴雨洪水过程,分析了侧扫雷达测流系统在阳朔水文站的比测应用,结果表明:侧扫雷达水面流速与实测水面流速分布主要集中在河道主槽内,断面最大流速随水位变化在深泓线附近变动;侧扫雷达各垂线流速均较实测流速偏大,且偏大比例随水位增大而增大;低水位侧扫雷达流速数据与实测流速相对误差较大,是造成曲线定线精度误差较大的主要原因.侧扫雷达分段率定结果在阳朔水文站流量测验中是适用的.
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

杨董为

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桂林水文中心,广西 桂林 541100

侧扫雷达 水面流速 流量 比测分析 阳朔水文站

2024

广西水利水电
广西水利电力勘测设计研究院

广西水利水电

影响因子:0.135
ISSN:1003-1510
年,卷(期):2024.(5)