TYPE OF IUH RELATION *REMARKS
STANDARD For Tp = DT (the computational time step) the STANDARD IUH becomes the URBHYD IUH from OTTHYMO 83.
NASH N = Tp / k + 1
N is also the “number of reservoirs”
WILLIAMS Calibration recommended.
Where t_o is the inflection point after the peak; K_n is the storage coefficient of each reservoir; N is the number of reservoirs, and Γ(N) is the gamma function.
SCS Is the NASH IUH with N = 5

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