Table 4. Reach-average velocity and discharge equations with roughness height.
Roughness height
Estimated model
RMSE
R
a
υ
= 1.28
q
0.62
0.45
R
max
υ
= 2.66
q
0.62
0.59
R
z
υ
= 2.51
q
0.63
0.61
D
50
υ
= 1.04
q
0.63
1.04
D
84
υ
= 1.32
q
0.63
0.47