In this tutorial we're going to calculate the time of concentration of a river. We'll use the Kirpich equation, but you can apply the method to other equations in a similar way.
The Kirpich equation:
tc = k * (dx ** const1) * (S ** const2)
tc = time of concentration in minutesk = 0.0195 to convert to SI unitsdx = distance between the first and last node in metersS = the elevation difference between the first and last node in m/mconst1 = 0.77const2 = -0.385
After this tutorial you're able to: