INPUT DATA: [How to use]
Mean channel slope So : |
| m/m
|
Rating exponent β : |
| [Leave blank for default β = 5/3]
|
Flood wave time-of-rise tr : |
| hr
|
INTERMEDIATE OUTPUT:
Spatial resolution
L/Δx : 0
Courant number
C : 0
Cell Reynolds number
D : 0
Weighting factor
X : 0
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|
Formulas:
T = 2tr
c = βu
L = cT
q = ud
C = c(Δt/Δx)
D = q/(SocΔx)
X = (1/2)(1-D)
σΔx = 2π/(L/Δx)
p = cos(σΔx)
q = sin(σΔx)
R = X + 0.5 C
S = R - C
M = (1 - p)(1 - 2S)C
N = qC
P = 1 - 2[(1 - p)(1 - S)S]
R1 = [(P - M)2 + N 2]1/2 / P
R2 = [1/(C σΔx)] tan-1[N/(P - M)]
Reference
OUTPUT:
Amplitude convergence ratio
R1 : 0
Phase convergence ratio
R2 : 0
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