Probability models for dry spells in Peninsular Malaysia

Sayang Mohd Deni, Abdul Aziz Jemain

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The analysis of the rainfall behavior particularly for the distribution of dry spells will benefit many areas such as agriculture, hydrology and water resource management. This study is aimed at fitting various types of probability models comprising the simple and mixture models to describe the distribution of dry spells. Daily rainfall data for the period of 1977 to 2004 and the observed frequency of dry spells for the period of 1940s to 1976 for each of the nine selected rainfall stations in Peninsular Malaysia are used in this study. In selecting the best fitting probability model to describe the observed distribution of dry spells for each rainfall station, the chi-square goodness-of-fit test is considered. Out of the nine probability models tested, the mixture of two geometric distributions (MXGD) is found best fitted to the distribution of dry spells for more than half of the data sets for both periods.

Original languageEnglish
Pages (from-to)37-47
Number of pages11
JournalAsia-Pacific Journal of Atmospheric Sciences
Volume44
Issue number1
Publication statusPublished - 2008

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rainfall
hydrology
distribution
agriculture
station
test
analysis
water resources management

Keywords

  • Daily rainfall occurrence
  • Dry spells
  • Mixture models
  • Peninsular Malaysia
  • Probability models

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Probability models for dry spells in Peninsular Malaysia. / Deni, Sayang Mohd; Jemain, Abdul Aziz.

In: Asia-Pacific Journal of Atmospheric Sciences, Vol. 44, No. 1, 2008, p. 37-47.

Research output: Contribution to journalArticle

Deni, Sayang Mohd ; Jemain, Abdul Aziz. / Probability models for dry spells in Peninsular Malaysia. In: Asia-Pacific Journal of Atmospheric Sciences. 2008 ; Vol. 44, No. 1. pp. 37-47.
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