Research Article
Mar 1981
Reducing Hydrologic Parameter Uncertainty
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VIEW THE REPLYAuthors: Yeou-Koung Tung and Larry W. Mays, AM.ASCEAuthor Affiliations
Publication: Journal of the Water Resources Planning and Management Division
Volume 107, Issue 1
Abstract
A methodology is introduced that can be used in hydrologic frequency analysis to reduce the parameter uncertainty. The methodology consists of developing generalized values of the parameters (mean, standard deviation, and skewness) through the use of a weighting procedure between sample and regionalized statistics. Weights are defined as a function of the variances of the sample parameters and regionalized parameters. The variances of the sample parameters are determined using two nonparametric statistical methods, the jackknife and the bootstrap. The variances of the regionalized parameters are determined through regression analysis. The ability of this methodology is illustrated using flood flow frequency data for the Southwestern United States.
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Published In
Journal of the Water Resources Planning and Management Division
Volume 107 • Issue 1 • March 1981
Pages: 245 - 262
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Mar 1981
Published online: Feb 12, 2021
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Yeou-Koung Tung
Research Asst., Dept. of Civ. Engrg., Univ. of Texas, Austin, Tex. 78712
Larry W. Mays, AM.ASCE
Asst. Prof., Dept. of Civ. Engrg., Univ. of Texas, Austin, Tex. 78712
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.