Frequency analysis of maximum daily rainfalls via L-moment approach

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)149-158
Number of pages10
JournalSains Malaysiana
Volume38
Issue number2
Publication statusPublished - Apr 2009
Externally publishedYes

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frequency analysis
rainfall
logistics
distribution
diagram

Keywords

  • Flood frequency
  • L-moment ratio
  • Maximum daily rainfalls
  • Regional frequency anlaysis

ASJC Scopus subject areas

  • General

Cite this

Frequency analysis of maximum daily rainfalls via L-moment approach. / Shabri, Ani; Mohd Ariff, Noratiqah.

In: Sains Malaysiana, Vol. 38, No. 2, 04.2009, p. 149-158.

Research output: Contribution to journalArticle

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