Citation
Abstract
L-moment theory is increasingly being used in hydrology of floods for regional frequency analysis. The L-moments have been used for parameter estimation, homogeneity testing and selection of the regional distribution. Records of peak floods, observed in North-Karoon basin, are analyzed using five distributions: generalized logistic, generalized extreme value, lognormal, Pearson type III and generalized Pareto. Each of these three-parameters distributions are estimated by the L-moment method. The discordancy index and homogeneity testing show that 5 out of the 7 study sites belong to a homogenous region. Based on the L-moment ratios diagram and the goodness-of-fit measure, the three-parameter lognormal distribution is identified as the most appropriate distribution in the homogeneous study region. The regional peak flood estimates for each return period are obtained based on this distribution.
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Additional Metadata
Item Type: | Article |
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Divisions: | Faculty of Environmental Studies |
Publisher: | Serials Publications |
Keywords: | L-moments; Regional flood frequency; Probability distribution; Statistical hydrology |
Depositing User: | Nabilah Mustapa |
Date Deposited: | 19 Sep 2015 01:49 |
Last Modified: | 25 Sep 2015 01:50 |
URI: | http://psasir.upm.edu.my/id/eprint/16474 |
Statistic Details: | View Download Statistic |
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