Gamma-Laguerre Formalism: Rigorous Approach and Application to Hydrologic Time Series
Publication: Journal of Hydrologic Engineering
Volume 9, Issue 4
Abstract
Previous work by various authors has shown that gamma-Laguerre distributions are appropriate for hydrologic applications because they offer the flexibility necessary to fit both the bulk and tails of empirical distributions, as well as a handy estimation formalism. The present work solves problems that still remain in gamma-Laguerre parameter estimation formalism: evaluating the highest degree of Laguerre polynomial and avoiding decreasing intervals in fitted probability distribution functions. From a pool of over 200 maximal rainfall and maximal discharge time series from all over the world that have been analyzed, a couple of examples, located in Mexico City and Niamey, respectively, are presented to illustrate the functionality of the formalism.
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Published In
Journal of Hydrologic Engineering
Volume 9 • Issue 4 • July 2004
Pages: 275 - 279
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jul 31, 2002
Accepted: Sep 8, 2003
Published online: Jun 15, 2004
Published in print: Jul 2004
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