Shabri, Ani and Mohd. Ariff, Noratiqah (2009) Frequency analysis of maximum daily rainfalls via L-moment approach. Sains Malaysiana, 38 (2). pp. 149-158. ISSN 01266039
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Knowledge related to distributions of rainfall amounts are of great importance for the design of water related structures. The greater problem faced by the hydrologists and engineers is identifying the best distribution form for regional data. The main goal of the study is to perform regional frequency analysis of maximum daily rainfalls selected each year among daily rainfalls measured over stations in Selangor and Kuala Lumpur using the L-moment method. Several distributions were taken into account in this study which include two-parameter normal (NOM), lognormal (LN2), three-parameter lognormal (LN3), logistic (LOG), generalized logistic (GLO), extreme value type I (EVI), generalized extreme value (GEV) and generalized Pareto (GPA) distribution. The most suitable distribution was determined according to the mean absolute deviation index (MADI), mean square deviation index (MSDI) and the L-moment ratio diagram. The result of this study showed that the GLO distribution is the most suitable distribution to fit the data of maximum daily rainfalls for stations in Selangor and Kuala Lumpur.
|Uncontrolled Keywords:||flood frequency, l-moment ratio, maximum daily rainfalls, regional frequency anlaysis|
|Subjects:||Q Science > QA Mathematics|
|Deposited By:||Ms Zalinda Shuratman|
|Deposited On:||30 Sep 2011 09:59|
|Last Modified:||30 Sep 2011 09:59|
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