A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches

In data scarce regions, regionalization provides a means for estimating hydrological extremes. In this study, regional pooling of 1-, 3-, 5- and 10-day annual maximum rainfall from 1948 to 2013 at 32 stations across Terengganu, Malaysia is used in a standard regional frequency analysis using the we...

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Main Authors:	Roslinazairimah, Zakaria, Noor Fadhilah, Ahmad Radi, Ngongondo, Cosmo S., Muhammad Az-Zuhri, Azman
Format:	Conference or Workshop Item
Language:	English
Published:	2014
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/8612/ http://umpir.ump.edu.my/id/eprint/8612/ http://umpir.ump.edu.my/id/eprint/8612/1/fist-2014-roslinazairimah-Regional_Frequency_Analysis.pdf

id	ump-8612
recordtype	eprints
spelling	ump-86122015-03-03T09:42:32Z http://umpir.ump.edu.my/id/eprint/8612/ A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches Roslinazairimah, Zakaria Noor Fadhilah, Ahmad Radi Ngongondo, Cosmo S. Muhammad Az-Zuhri, Azman Q Science (General) In data scarce regions, regionalization provides a means for estimating hydrological extremes. In this study, regional pooling of 1-, 3-, 5- and 10-day annual maximum rainfall from 1948 to 2013 at 32 stations across Terengganu, Malaysia is used in a standard regional frequency analysis using the well-known L-moments approach. The objectives of this study are (1) to estimate extreme rainfall in Terengganu, Malaysia using regional pooling of frequency analysis, (2) to establish a well-designed and accurate procedures of analysis of rainfall extremes in Terengganu using the regional frequency approach and (3) to improve the understanding of spatial rainfall characteristics as a main cause for design and planning practices in flood control. Cluster analysis is performed to determine the homogeneity of rainfall regions based on at-site characteristics. The cluster analysis has identified four rainfall regions based on homogeneity and heterogeneity tests using Monte Carlo simulations with regional average L-moment ratios fitted to the Kappa distribution. On the basis of the accuracy of the derived index rainfall quantiles, the regional rainfall frequency approach is found to be acceptable and had smaller uncertainty as compared to at-site estimates. 2014 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8612/1/fist-2014-roslinazairimah-Regional_Frequency_Analysis.pdf Roslinazairimah, Zakaria and Noor Fadhilah, Ahmad Radi and Ngongondo, Cosmo S. and Muhammad Az-Zuhri, Azman (2014) A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches. In: Proceedings of the 10th IMT‐GT International Conference On Mathematics, Statistics And Its Applications (ICMSA 2014), 14-16 October 2014 , Kuala Terengganu. pp. 667-674.. https://drive.google.com/file/d/0B02jW7Y1R3ICX0s0dG9XN3I1dVU/view?usp=sharing
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Roslinazairimah, Zakaria Noor Fadhilah, Ahmad Radi Ngongondo, Cosmo S. Muhammad Az-Zuhri, Azman A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches
description	In data scarce regions, regionalization provides a means for estimating hydrological extremes. In this study, regional pooling of 1-, 3-, 5- and 10-day annual maximum rainfall from 1948 to 2013 at 32 stations across Terengganu, Malaysia is used in a standard regional frequency analysis using the well-known L-moments approach. The objectives of this study are (1) to estimate extreme rainfall in Terengganu, Malaysia using regional pooling of frequency analysis, (2) to establish a well-designed and accurate procedures of analysis of rainfall extremes in Terengganu using the regional frequency approach and (3) to improve the understanding of spatial rainfall characteristics as a main cause for design and planning practices in flood control. Cluster analysis is performed to determine the homogeneity of rainfall regions based on at-site characteristics. The cluster analysis has identified four rainfall regions based on homogeneity and heterogeneity tests using Monte Carlo simulations with regional average L-moment ratios fitted to the Kappa distribution. On the basis of the accuracy of the derived index rainfall quantiles, the regional rainfall frequency approach is found to be acceptable and had smaller uncertainty as compared to at-site estimates.
format	Conference or Workshop Item
author	Roslinazairimah, Zakaria Noor Fadhilah, Ahmad Radi Ngongondo, Cosmo S. Muhammad Az-Zuhri, Azman
author_facet	Roslinazairimah, Zakaria Noor Fadhilah, Ahmad Radi Ngongondo, Cosmo S. Muhammad Az-Zuhri, Azman
author_sort	Roslinazairimah, Zakaria
title	A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches
title_short	A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches
title_full	A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches
title_fullStr	A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches
title_full_unstemmed	A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches
title_sort	regional frequency analysis of annual maximum rainfall in terengganu using the index rainfall and l-moments approaches
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/8612/ http://umpir.ump.edu.my/id/eprint/8612/ http://umpir.ump.edu.my/id/eprint/8612/1/fist-2014-roslinazairimah-Regional_Frequency_Analysis.pdf
first_indexed	2023-09-18T22:06:22Z
last_indexed	2023-09-18T22:06:22Z
_version_	1777414735515353088

A Regional Frequency Analysis of Annual Maximum Rainfall in Terengganu using the Index Rainfall and L-moments Approaches

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