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Hydrometry. Measuring river velocity and discharge with acoustic Doppler profilers
Acoustic Doppler profilers are instruments and software packages used to measure water velocity, channel bathymetry, and river discharge.
This Technical Specification gives the principles of operation, construction, maintenance and application of acoustic Doppler profilers to the measurement of velocity and discharge, and discusses calibration and verification issues.
It is applicable to open-channel flow measurements with an instrument mounted on a moving vessel.
It is not applicable to measurement of liquid flow in small channels or partly-filled pipes using a single Doppler-based flowmeter at a fixed point in the cross section.
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