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.

This publication has 7 references indexed in Scilit: