| |
CRC PUBLICATIONS |
Monte Carlo Simulation of Flood Frequency Curves from Rainfall
Ataur Rahman, Erwinn Weinmann, Tam Hoang, Eric Laurenson, Rory Nathan
Publication Type:
Technical Report
This is a publication of the initial CRC for Catchment Hydrology
CRC Program:
Flood Hydrology (Previous CRC)
|
Publication Keywords:
Rainfall/Runoff Relationship
Floods and Flooding
Frequency Analysis
Design Data
Statistical Analysis
Modelling (Hydrological)
Modelling (Stochastic)
Storms
Calibration
|
Abstract / Summary:
CRC Project FL1 (Holistic approach to rainfall-based design fl ood estimation) took a different look at ways to estimate design fl oods. Currently, the recommended procedure in Australia is to use a design rainfall event (with appropriate intensity, temporal and spatial pattern, and areal reduction factor), subtract median losses, then route the rainfall-excess (using a runoffrouting model, with
average
parameters) and add basefl ow. This approach ignores the interactions between the many named components, and can produce signifi cant bias and uncertainty.
Project FL1 aimed to reduce the bias and uncertainties in Australian design fl ood estimates by developing rainfall-based design fl ood estimation procedures which better take account of the interaction and joint probability of the different fl ood producing components, i.e. a holistic approach.
The work described in this report examines a range of joint probability approaches to allow for the interaction of different components. The results certainly seem very promising, and suggest that a shift in thinking on design fl oods is not far away.
 |
1 Download(s) |
|
|
|
|
|
|
|
|
Centre Office:
CRC for Catchment Hydrology
Dept of Civil Engineering
Building 60
Monash University Vic 3800
Tel: +61 3 9905 2704
Fax: +61 3 9905 5033
|
|
|
