統一された流速内外挿法に基づく様々な流速計測技術の流量推定精度
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概要
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Various velocimetric tools like ADCP, image-processing technique, radio current meter and electro-magnetic sensor were used to conduct simultaneous measurement of river discharge in Uono River. The comparison of measurement accuracy of the above tools was conducted by using two unified interpolation and extrapolation techniques of point-velocities like DIEX (Dynamic Interpolation and EXtrapolation) method and a previous method. The results indicated that 1) the surface velocity measured by the above velocimetric tools gave good agreements with the ADCP data, 2) the relative errors of discharge in the previous method was large due to the treatment of lateral velocity profile near banks and float coefficients, and 3) the relative errors of discharge in the DIEX method may remain low even with a few measured velocities.
- Japan Society of Civil Engineersの論文
Japan Society of Civil Engineers | 論文
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