Thus, for continuity. 



and 



a X c X k = 



b + f + m = I 



(7) 



Discharge 



^^^ 



Note All Scales Are Logarithmic 



Figure 30. Average hydraulic geometry of river channels expressed 



by relations of width, depth, and velocity to discharge at two 



locations along a river (modified from Leopold, Wolman, and Miller 

 1 964 ) . 



if a coefficient or exponent for one hydraulic geometry variable changes due 

 to the gravel removal operation, at least one of the other variables must 



104 



