Regional analysis of annual maximum rainfall using TL-moments method

Ani Bin Shabri, Zalina Mohd Daud, Noratiqah Mohd Ariff

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Information related to distributions of rainfall amounts are of great importance for designs of water-related structures. One of the concerns of hydrologists and engineers is the probability distribution for modeling of regional data. In this study, a novel approach to regional frequency analysis using L-moments is revisited. Subsequently, an alternative regional frequency analysis using the TL-moments method is employed. The results from both methods were then compared. The analysis was based on daily annual maximum rainfall data from 40 stations in Selangor Malaysia. TL-moments for the generalized extreme value (GEV) and generalized logistic (GLO) distributions were derived and used to develop the regional frequency analysis procedure. TL-moment ratio diagram and Z-test were employed in determining the best-fit distribution. Comparison between the two approaches showed that the L-moments and TL-moments produced equivalent results. GLO and GEV distributions were identified as the most suitable distributions for representing the statistical properties of extreme rainfall in Selangor. Monte Carlo simulation was used for performance evaluation, and it showed that the method of TL-moments was more efficient for lower quantile estimation compared with the L-moments.

Original languageEnglish
Pages (from-to)561-570
Number of pages10
JournalTheoretical and Applied Climatology
Volume104
Issue number3-4
DOIs
Publication statusPublished - Jun 2011

Fingerprint

rainfall
frequency analysis
logistics
method
analysis
distribution
diagram
modeling
simulation
water

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Regional analysis of annual maximum rainfall using TL-moments method. / Shabri, Ani Bin; Daud, Zalina Mohd; Mohd Ariff, Noratiqah.

In: Theoretical and Applied Climatology, Vol. 104, No. 3-4, 06.2011, p. 561-570.

Research output: Contribution to journalArticle

Shabri, Ani Bin ; Daud, Zalina Mohd ; Mohd Ariff, Noratiqah. / Regional analysis of annual maximum rainfall using TL-moments method. In: Theoretical and Applied Climatology. 2011 ; Vol. 104, No. 3-4. pp. 561-570.
@article{0bcd508965a14791b3b07ff1b6e94571,
title = "Regional analysis of annual maximum rainfall using TL-moments method",
abstract = "Information related to distributions of rainfall amounts are of great importance for designs of water-related structures. One of the concerns of hydrologists and engineers is the probability distribution for modeling of regional data. In this study, a novel approach to regional frequency analysis using L-moments is revisited. Subsequently, an alternative regional frequency analysis using the TL-moments method is employed. The results from both methods were then compared. The analysis was based on daily annual maximum rainfall data from 40 stations in Selangor Malaysia. TL-moments for the generalized extreme value (GEV) and generalized logistic (GLO) distributions were derived and used to develop the regional frequency analysis procedure. TL-moment ratio diagram and Z-test were employed in determining the best-fit distribution. Comparison between the two approaches showed that the L-moments and TL-moments produced equivalent results. GLO and GEV distributions were identified as the most suitable distributions for representing the statistical properties of extreme rainfall in Selangor. Monte Carlo simulation was used for performance evaluation, and it showed that the method of TL-moments was more efficient for lower quantile estimation compared with the L-moments.",
author = "Shabri, {Ani Bin} and Daud, {Zalina Mohd} and {Mohd Ariff}, Noratiqah",
year = "2011",
month = "6",
doi = "10.1007/s00704-011-0437-5",
language = "English",
volume = "104",
pages = "561--570",
journal = "Theorectical and Applied Climatology",
issn = "0177-798X",
publisher = "Springer Wien",
number = "3-4",

}

TY - JOUR

T1 - Regional analysis of annual maximum rainfall using TL-moments method

AU - Shabri, Ani Bin

AU - Daud, Zalina Mohd

AU - Mohd Ariff, Noratiqah

PY - 2011/6

Y1 - 2011/6

N2 - Information related to distributions of rainfall amounts are of great importance for designs of water-related structures. One of the concerns of hydrologists and engineers is the probability distribution for modeling of regional data. In this study, a novel approach to regional frequency analysis using L-moments is revisited. Subsequently, an alternative regional frequency analysis using the TL-moments method is employed. The results from both methods were then compared. The analysis was based on daily annual maximum rainfall data from 40 stations in Selangor Malaysia. TL-moments for the generalized extreme value (GEV) and generalized logistic (GLO) distributions were derived and used to develop the regional frequency analysis procedure. TL-moment ratio diagram and Z-test were employed in determining the best-fit distribution. Comparison between the two approaches showed that the L-moments and TL-moments produced equivalent results. GLO and GEV distributions were identified as the most suitable distributions for representing the statistical properties of extreme rainfall in Selangor. Monte Carlo simulation was used for performance evaluation, and it showed that the method of TL-moments was more efficient for lower quantile estimation compared with the L-moments.

AB - Information related to distributions of rainfall amounts are of great importance for designs of water-related structures. One of the concerns of hydrologists and engineers is the probability distribution for modeling of regional data. In this study, a novel approach to regional frequency analysis using L-moments is revisited. Subsequently, an alternative regional frequency analysis using the TL-moments method is employed. The results from both methods were then compared. The analysis was based on daily annual maximum rainfall data from 40 stations in Selangor Malaysia. TL-moments for the generalized extreme value (GEV) and generalized logistic (GLO) distributions were derived and used to develop the regional frequency analysis procedure. TL-moment ratio diagram and Z-test were employed in determining the best-fit distribution. Comparison between the two approaches showed that the L-moments and TL-moments produced equivalent results. GLO and GEV distributions were identified as the most suitable distributions for representing the statistical properties of extreme rainfall in Selangor. Monte Carlo simulation was used for performance evaluation, and it showed that the method of TL-moments was more efficient for lower quantile estimation compared with the L-moments.

UR - http://www.scopus.com/inward/record.url?scp=79957445183&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79957445183&partnerID=8YFLogxK

U2 - 10.1007/s00704-011-0437-5

DO - 10.1007/s00704-011-0437-5

M3 - Article

VL - 104

SP - 561

EP - 570

JO - Theorectical and Applied Climatology

JF - Theorectical and Applied Climatology

SN - 0177-798X

IS - 3-4

ER -