Relative accuracy of log pearson III procedures

James R. Wallis; Eric F. Wood

doi:10.1061/(ASCE)0733-9429(1985)111:7(1043)

Relative accuracy of log pearson III procedures

James R. Wallis, Eric F. Wood

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96 Scopus citations

Abstract

The U.S. Water Resources Council (WRC) has suggested that the log-Pearson III distribution, fitted by the method of moments, should be used in flood frequency analysis. A Monte Carlo simulation assessment of the WRC procedures shows that the flood quantile estimates obtainable by these procedures are poorer than those obtainable by using an index flood type approach with either a generalized extreme value distribution or a Wakeby distribution fitted by probability weighted moments. It is suggested that the justification for using the WRC Bulletin 17B guidelines is in need of reevaluation.

Original language	English (US)
Pages (from-to)	1043-1056
Number of pages	14
Journal	Journal of Hydraulic Engineering
Volume	111
Issue number	7
DOIs	https://doi.org/10.1061/(ASCE)0733-9429(1985)111:7(1043)
State	Published - Jul 1985

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Water Science and Technology
Mechanical Engineering

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10.1061/(ASCE)0733-9429(1985)111:7(1043)

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AB - The U.S. Water Resources Council (WRC) has suggested that the log-Pearson III distribution, fitted by the method of moments, should be used in flood frequency analysis. A Monte Carlo simulation assessment of the WRC procedures shows that the flood quantile estimates obtainable by these procedures are poorer than those obtainable by using an index flood type approach with either a generalized extreme value distribution or a Wakeby distribution fitted by probability weighted moments. It is suggested that the justification for using the WRC Bulletin 17B guidelines is in need of reevaluation.

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Relative accuracy of log pearson III procedures

Abstract

All Science Journal Classification (ASJC) codes

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