Regional flood estimation for ungauged basins in Sarawak, Malaysia

Yeo, Howe Lim and Leonard, Melvin Lye (2003) Regional flood estimation for ungauged basins in Sarawak, Malaysia. Hydrological Sciences Journal, 48 (1). pp. 79-94. ISSN 0262-6667

Regional flood estimation for ungauged basins in Sarawak, Malaysia (abstract).pdf

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Design flood estimation is an important task that is required in the planning and design of many civil engineering projects. In this study, the flood records of more than 23 gauged river basins in Sarawak, Malaysia, are examined using an index-flood estimation procedure based on L-moments. Two homogeneous regions were identified and the Generalized Extreme Value and the Generalized Logistic distributions are found to describe the distribution of extreme flood events appropriately within the respective regions. A regional growth curve is subsequently developed for each of the regions. These curves can be used for the estimation of design floods in ungauged basins in Sarawak within the limitations identified for the method. The results presented herein are useful for practicing engineers in Sarawak while the general methodology may be used in any other regions, provided flood records are available.

Item Type: Article
Uncontrolled Keywords: regional flood frequency; design flood; L-moments; homogeneous region; cluster analysis; index flood; growth curves; Sarawak, Malaysia, unimas, university, universiti, Borneo, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Depositing User: Karen Kornalius
Date Deposited: 31 Jul 2015 02:04
Last Modified: 31 Jul 2015 02:04

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