1. Hydrologist, Hydrology Group, Water Planning Sciences, Environment and Resource Sciences, Dept. of Environment and Resource Management, Queensland Government, Australia (corresponding author).
2. Lecturer, Dept. of Civil Engineering, Univ. of Canterbury, Christchurch, New Zealand.
3. Lecturer, School of Civil and Environmental Engineering, Univ. of Adelaide, Adelaide, Australia.
4. Professor, School of Civil and Environmental Engineering, Univ. of Adelaide, Adelaide, Australia.