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Discharge varies across the cross section of a channel as a function of velocity and morphometry
(Figure 1.3.5), therefore, measurement of discharge is often conducted with the use of subsections
(Figure 1.3.6). Measurements of velocity are conducted at a depth located 0.6 units
Flow
Flood Control Gates
Powerhouse
Figure 1.3.4 Physical model simulation of currents downstream from a hydropower dam
1.3-6
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