Statistical distributions of extreme dry spell in Peninsular Malaysia

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Abstract

Statistical distributions of annual extreme (AE) series and partial duration (PD) series for dry-spell event are analyzed for a database of daily rainfall records of 50 rain-gauge stations in Peninsular Malaysia, with recording period extending from 1975 to 2004. The three-parameter generalized extreme value (GEV) and generalized Pareto (GP) distributions are considered to model both series. In both cases, the parameters of these two distributions are fitted by means of the L-moments method, which provides a robust estimation of them. The goodness-of-fit (GOF) between empirical data and theoretical distributions are then evaluated by means of the L-moment ratio diagram and several goodness-of-fit tests for each of the 50 stations. It is found that for the majority of stations, the AE and PD series are well fitted by the GEV and GP models, respectively. Based on the models that have been identified, we can reasonably predict the risks associated with extreme dry spells for various return periods.

Original languageEnglish
Pages (from-to)253-264
Number of pages12
JournalTheoretical and Applied Climatology
Volume102
Issue number3
DOIs
Publication statusPublished - Nov 2010

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statistical distribution
partial duration series
return period
gauge
diagram
rainfall
distribution
station
parameter

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Statistical distributions of extreme dry spell in Peninsular Malaysia. / Wan Zin @ Wan Ibrahim, Wan Zawiah; Jemain, Abdul Aziz.

In: Theoretical and Applied Climatology, Vol. 102, No. 3, 11.2010, p. 253-264.

Research output: Contribution to journalArticle

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