REDUCING HYDROLOGIC PARAMETER UNCERTAINTY

Yeou Koung Tung, Larry Mays

Research output: Chapter in Book/Report/Conference proceedingChapter

19 Scopus citations

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.

Original languageEnglish (US)
Title of host publicationJournal of the Water Resources Planning and Management Division, American Society of Civil Engineers
Pages245-262
Number of pages18
Volume107
Edition1
StatePublished - Mar 1981
Externally publishedYes

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ASJC Scopus subject areas

  • Engineering(all)
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Tung, Y. K., & Mays, L. (1981). REDUCING HYDROLOGIC PARAMETER UNCERTAINTY. In Journal of the Water Resources Planning and Management Division, American Society of Civil Engineers (1 ed., Vol. 107, pp. 245-262)