Regional flow frequency analysis on Peninsular Malaysia using lmoments / Aminuddin Mohd Baki et al.

Mohd Baki, Aminuddin and Mat Yusof, Doris Asmani and Atan, Ismail and Mohd Halim, Nora Farina (2014) Regional flow frequency analysis on Peninsular Malaysia using lmoments / Aminuddin Mohd Baki et al. Jurnal Intelek, 9 (1). pp. 63-68. ISSN 2682-9223


Through this study, regional estimation has been proposed as an alternative technique to estimate design runoff. Regional frequency analysis of annual runoff in Peninsular Malaysia has been conducted and was based on the theory of L-Moments as developed by Hosking and Wallis (1997) is a very reliable method for assessing exceedance probabilities of extreme environmental events when data is available from more than one site. This recommended technique will definitely enhance the accuracy of the design runoff and at the same time will minimize the uncertainties of observed data. The objectives of this study are to identify the homogeneous region and to establish the best fitted distribution for each region. The study area was separated into five homogeneous regions. The General Logistics (GLO) was found to be the best distribution for the region in peninsular Malaysia followed by Generalized Extreme Value (GEV). The best fit distributions of annual runoff in Malaysia are discovered based on L-moment ratio diagram and statistical tests. Numerical analysis was carried out on some stations in every state in Peninsular Malaysia. Thus, the analysis performed are using data from homogeneous regions determine using L-moments process. The Frequency analysis using a regional approach based on L-moments method was detected to be practical in the estimation of design runoff at ungauged site.


Item Type: Article
Email / ID Num.
Mohd Baki, Aminuddin
Mat Yusof, Doris Asmani
Atan, Ismail
Mohd Halim, Nora Farina
Subjects: Q Science > QA Mathematics > Probabilities
Q Science > QA Mathematics > Analysis
Divisions: Universiti Teknologi MARA, Perlis > Arau Campus
Journal or Publication Title: Jurnal Intelek
UiTM Journal Collections: UiTM Journal > Jurnal Intelek (JI)
ISSN: 2682-9223
Volume: 9
Number: 1
Page Range: pp. 63-68
Keywords: L-Moment, Homogeneous, Regional Frequency Analysis, Best Fitted Distributions
Date: June 2014
Edit Item
Edit Item


[thumbnail of 34557.pdf] Text

Download (538kB)

ID Number




Statistic details