1. What design AEP would you use to ensure that the chance of flooding in a 100 year life of a project is no more than 10%?

2. What would be the impact on the value of the design flood estimated by the following: 

a) An increase in the value of K in the linear Storage-Discharge relationship. 

b) Use of a Storage Discharge relationship of the form S = 400 Qm where the exponent ‘m’ assumes a value less than one.

3. How would you go about estimating the AEP=1% design flood for a catchment in Australia for which no rainfall or streamflow data are available?

4. Air masses may be lifted by three generic processes that are considered to generate rainfall. Describe two of these processes and comment upon the probable spatial distribution in each process that you describe.

5. Briefly discuss the difference between a probabilistic and a deterministic interpretation of the Rational method.

6. According to the theory of the time-area method, is the shape of a runoff hydrograph dependent on the shape of the time-area diagram, or on the storm temporal pattern, or both the time-area diagram and the storm temporal pattern? Give reasons for your answer.

7. How would you go about testing rainfall records to assess their reliability? You can assume that other rainfall records are available both in the same region and within close regions.

Answer rating: 100% (QA)

1 Understanding the chance of different sized floods occurring is important for managing flood risk The chance of a flood event can be described using a variety of terms but the preferred method is th... View the full answer