Conference Proceedings

Benchmarking the selection of probability neutral hydrologic design floods for use in 2D hydraulic models

M Scorah, D Stephens, R Nathan

2018 Hydrology and Water Resources Symposium, HWRS 2018: Water and Communities | Published : 2018

Abstract

When constructing hydrologic models, the natural variability in flood influencing factors (such as losses and temporal pattern) has traditionally been addressed by selecting individual, “probability neutral” values of these factors. This method is referred to as the “Design Event” approach. In the most recent release of Australian Rainfall and Runoff (ARR) more sophisticated representations of this variability (such as ensemble and Monte Carlo frameworks) are now recommended. However, hydrologic models commonly act as an input for 2D hydraulic modelling, where computational constraints limit the ability to model a large number of floods. Practitioners are therefore often required to select i..

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University of Melbourne Researchers