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Fitting the best-fit distribution for the hourly rainfall amount in the Wilayah Persekutuan

Y., Fadhilah and M. D., Zalina and V. T. V., Nguyen and S., Suhaila and Y., Zulkifli (2007) Fitting the best-fit distribution for the hourly rainfall amount in the Wilayah Persekutuan. Jurnal Teknologi, 46 (C). pp. 49-58. ISSN 2180-3722

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Abstract

In determining the best-fit model for the hourly rainfall amounts for the twelve stations in the Wilayah Persekutuan, four distributions namely, the Exponential, Gamma, Weibull and Mixed-Exponential were used. Parameters for each distribution were estimated using the maximum likelihood method. The best-fit model was chosen based upon the minimum error produced by the goodness-of-fit tests used in this study. The tests were justified further by the exceedance probability plot. The Mixed-Exponential was found to be the most appropriate distribution in describing the hourly rainfall amounts. From the parameter estimates for the Mixed-Exponential distribution, it could be implied that most of the hourly rainfall amount recorded were received from the heavy rainfall even though there was a high occurrences of light rainfall.

Item Type:Article
Additional Information:C (Sains & Matematik)
Uncontrolled Keywords:Hourly rainfall amount, goodness-of-fit test, exceedance probability, maximum likelihood
Subjects:Q Science > QA Mathematics
Divisions:Science
ID Code:5703
Deposited By: Pn Norhayati Abu Ruddin
Deposited On:19 Jun 2008 08:21
Last Modified:28 Nov 2013 07:40

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