Journal article
The within-day behaviour of 6 minute rainfall intensity in Australia
AW Western, B Anderson, L Siriwardena, FHS Chiew, A Seed, G Blöschl
Hydrology and Earth System Sciences | COPERNICUS GESELLSCHAFT MBH | Published : 2011
Open access
Abstract
The statistical behaviour and distribution of high-resolution (6 min) rainfall intensity within the wet part of rainy days (total rainfall depth >10 mm) is investigated for 42 stations across Australia. This paper compares nine theoretical distribution functions (TDFs) in representing these data. Two goodness-of-fit statistics are reported: the Root Mean Square Error (RMSE) between the fitted and observed within-day distribution; and the coefficient of efficiency for the fit to the highest rainfall intensities (average intensity of the 5 highest intensity intervals) across all days at a site. The three-parameter Generalised Pareto distribution was clearly the best performer. Good results wer..
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Awarded by Australian Research Council
Funding Acknowledgements
This work was supported by an Australian Research Council Discovery Project Grant (DP-0557799) and the WARECALC project of the European Union (FP7-PEOPLE programme). AWW was supported by a Marie Curie International Research Staff Exchange Scheme fellowship from the Australian Academy of Sciences. We thank Drs Murray Peel and Steve Wealands for their constructive advice and technical guidance.