Research Article
Nov 1978
Flood Frequency Analysis by Power Transformation
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VIEW THE REPLYAuthors: Subhash Chander, Arun Kumar, and S. K. SpoliaAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 104, Issue 11
Abstract
In this study, flood peaks are estimated using the power transformation method. This method is preferred as it does not require a priori knowledge of the frequency distribution of the population. Annual flood peaks for 15 rivers have been analyzed and it is shown that power transformation is more effective than SMEMAX and log transformations in normalizing the skewed flood distribution. The effect of kurtosis has also been taken into account in the estimation of flood peaks. Flood peaks of 100-yr and 200-yr recurrence intervals are computed using power transformation method and the results are compared with several existing methods. Frequency curves of actual data are plotted and it is shown that, at higher probability of non-exceedance, curves based on power transformation fits closest to the observed data.
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Published In
Journal of the Hydraulics Division
Volume 104 • Issue 11 • November 1978
Pages: 1495 - 1504
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Nov 1978
Published online: Feb 3, 2021
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Subhash Chander
Prof. in Civ. Engrg., Indian Inst. of Tech., New Delhi, India
Arun Kumar
Asst. Prof. in Civ. Engrg.·Indian Inst. of Tech. New Delhi India
S. K. Spolia
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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.