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CRC PUBLICATIONS |
Relating Baseflow to Catchment Properties. A Scaling Approach
G. C. Lacey
Publication Type:
Technical Report
This is a publication of the initial CRC for Catchment Hydrology
CRC Program:
Flood Hydrology (Previous CRC)
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Publication Keywords:
Storm Sewage
Water Treatment
Storage
Detention Reservoirs
Water Quality Assessment
Statistical Analysis
Wetlands
Ponds
Physiochemical Properties
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Abstract / Summary:
In the discussions that led to the selection of core research projects for the Cooperative Research Centre for Catchment Hydrology, it was recognised that advancing the understanding of catchment similarity and regional behaviour would have important long-term benefits for hydrology. This is because of the need to transfer data from catchments with information (gauged) to those where no such measurements are available (ungauged).
A specific objective therefore for CRC Project D2 Regionalisation and Scaling of Hydrologic Data was to determine what descriptors are useful for particular aspects of catchment behaviour (e.g. flood response, yield). Once these are selected, regional relationships and the effect of catchment size (scale) can be studied.
This report by Geoff Lacey (University of Melbourne) is an important contribution to the description of the baseflow component of catchment yield. His development of a new geology-vegetation index to help classify catchment behaviour appears to hold significant promise for a number of applications. (As Geoff mentions, already it has been found useful in predictive equations for design losses in ungauged catchments, developed as part of CRC Project Dl 'Improved Loss Modelling for Design Flood Estimation and Flood Forecasting').
It is hoped that readers of this report will undertake their own applications of the concepts presented here, and provide feedback to the CRC on their results.
Russell Mein
Leader, Flood Hydrology Program
Cooperative Research Centre for Catchment Hydrology
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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
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