List of Symbols
Symbols  Units 
a = Amplitude 
ft

A = Area 

C = Chezy resistance coefficient 

D = Hydraulic depth 
ft

g = Acceleration of gravity 

h = Hydraulic (piezometric) head, or distance below water surface 
ft

= Head loss due to boundary friction ft 
ft

= Head loss due to local causes ft  ft 
H = Total head or water surface elevation  ft 
H = Matrix of water surface elevation ~ 
~ 
K = Diffusion coefficient in DHM Model  
K = Matrix of diffusion coefficients ~ 
~ 
L = Distance along channel  ft 
m = Momentum quantity in DHM Model  ~ 
M = Mean water surface  ft 
n = Manning's roughness factor  ~ 
p = Pressure  
P = Wetted perimeter of channel  ft 
q = Discharge per unit width  
Q = Discharge  
R = Hydraulic radius  ft 
S = Slope  ~ 
= Slope of acceleration 
~
