A simple parameter-free flood magnitude estimator
Open Access
- 1 April 1989
- journal article
- research article
- Published by Taylor & Francis in Hydrological Sciences Journal
- Vol. 34 (2) , 129-137
- https://doi.org/10.1080/02626668909491319
Abstract
Some simulation results are presented with respect to the parameter-free flood magnitude estimator: where p is the estimated probability of a smaller annual maximum flood, and the ri are the ranked annual flood maxima. The design magnitude estimates are obtained by solving for x with p specified. Root-mean-square values and probabilities of an underestimate are tabulated with respect to samples of size 20, 30 and 50 from a selection of “floodlike” distributions. As well as indicating the region of applicability of the estimator, the tabulated results provide a useful basis for measuring the improvement of future parameter-free estimators.Keywords
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