Homework 1

Due on February 10

Jorge A. Ramirez

1. The following is the observed effective rainfall hyetograph from a given basin:

The corresponding direct runoff discharge hydrograph is:

1. Use the Least-Squares approach to estimate the U.H. corresponding to this situation.

2. Use the Method of Moments to estimate the parameters of the Nash model for this situation.

3. Use the Method of Moments to estimate the parameters of the Linear Reservoir - Linear Channel model for this situation.

4. Derive a 6-h unit hydrograph from the results obtained in part b).

5. Compare the hydrographs that would be predicted with b) and c) for the rainfall hyetograph tabulated below.

6. Compare results a) and e) both in terms of the U.H. and the predicted hydrograph.

7. What is the surface area of this basin?