Implementation - Rainfall Intensity
Rainfall intensity can be specified explicitly or Intensity-Duration-Frequency (I-D-F) curve information and time of concentration Tc can be used.
The relation between the Tc and rainfall intensity is:
i = K1/(K2+Tc)K3
where:
i = rainfall intensity in in/hr (mm/hr)
Tc = Time of concentration in minute.
K1, K2, K3 = I-D-F curve fitting parameters