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在大洪水期间,缩短测流历时,不仅能够减轻水文职工的劳动强度,更可以为防汛指挥部门及时提供准确可靠的实测资料。文章通过线性回归分析的方法,找到与断面平均流速关联度比较高测点测速,来计算断面平均流速,取得了比较好的效果。
During the Great Flood, shortening the duration of flow measurement not only can reduce the labor intensity of hydrological workers, but also provide accurate and reliable measured data to the flood control headquarters in time. By means of linear regression analysis, the article finds that the correlation between the velocity and the average cross-section velocity is relatively high and the average velocities of cross-sections are calculated, and the better results are obtained.