Comparison of different empirical conversion methods from 60-minute to 1-minute integration time in Malaysia

This paper presents some preliminary assessments of the precipitation rate conversion methods from 60-min to 1-min integration time. The conversion methods used in this study are Moupfouma and Khairolanuar et al., and ITU-R P.837. Rainfall rate data of twelve-months duration from January to December...

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Main Authors: Mohd Sobli, Nuurul Hudaa, Ismail, Ahmad Fadzil, Mohd. Isa, Farah Nadia, Mansor, Hasmah, Saidin, Nor Azlina, Zainal Abidin, Mohd Shahnan
Format: Article
Language:English
Published: AENSI Publications 2014
Subjects:
Online Access:http://irep.iium.edu.my/40706/
http://irep.iium.edu.my/40706/1/014-AJBAS-Published.pdf
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author Mohd Sobli, Nuurul Hudaa
Ismail, Ahmad Fadzil
Mohd. Isa, Farah Nadia
Mansor, Hasmah
Saidin, Nor Azlina
Zainal Abidin, Mohd Shahnan
author_facet Mohd Sobli, Nuurul Hudaa
Ismail, Ahmad Fadzil
Mohd. Isa, Farah Nadia
Mansor, Hasmah
Saidin, Nor Azlina
Zainal Abidin, Mohd Shahnan
author_sort Mohd Sobli, Nuurul Hudaa
building IIUM Repository
collection Online Access
description This paper presents some preliminary assessments of the precipitation rate conversion methods from 60-min to 1-min integration time. The conversion methods used in this study are Moupfouma and Khairolanuar et al., and ITU-R P.837. Rainfall rate data of twelve-months duration from January to December 2009 were acquired from Malaysia Meteorological Department (MMD) and exploited for the evaluation. The rainfall data were collected from MMD rain gauge station located at Kuala Lumpur International Airport (KLIA). The investigations comprise of producing annual rainfall rate cumulative distributions of the measured data. The equivalent 1-min annual rainfall rate cumulative distributions using conversion methods as mentioned above. Predicted values of annual 1-min cumulative distribution established by ITU-R P.837 are used as references. The equivalent 1-min equivalent cumulative distribution obtained from Moupfouma’s and Khairolanuar et al.’s methods are then compared with that of ITU-R P.837 to validate the applicability and efficiency of each method. According to the results, it can be observed that Khairolanuar et al.’s method capable of generating equivalent 1-min rainfall values with smallest percentage difference as compared to ITU-R P.837 at 0.01% of time exceedance.
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institution International Islamic University Malaysia
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language English
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spelling iium-407062022-07-22T02:54:00Z http://irep.iium.edu.my/40706/ Comparison of different empirical conversion methods from 60-minute to 1-minute integration time in Malaysia Mohd Sobli, Nuurul Hudaa Ismail, Ahmad Fadzil Mohd. Isa, Farah Nadia Mansor, Hasmah Saidin, Nor Azlina Zainal Abidin, Mohd Shahnan TA197 Engineering meteorology This paper presents some preliminary assessments of the precipitation rate conversion methods from 60-min to 1-min integration time. The conversion methods used in this study are Moupfouma and Khairolanuar et al., and ITU-R P.837. Rainfall rate data of twelve-months duration from January to December 2009 were acquired from Malaysia Meteorological Department (MMD) and exploited for the evaluation. The rainfall data were collected from MMD rain gauge station located at Kuala Lumpur International Airport (KLIA). The investigations comprise of producing annual rainfall rate cumulative distributions of the measured data. The equivalent 1-min annual rainfall rate cumulative distributions using conversion methods as mentioned above. Predicted values of annual 1-min cumulative distribution established by ITU-R P.837 are used as references. The equivalent 1-min equivalent cumulative distribution obtained from Moupfouma’s and Khairolanuar et al.’s methods are then compared with that of ITU-R P.837 to validate the applicability and efficiency of each method. According to the results, it can be observed that Khairolanuar et al.’s method capable of generating equivalent 1-min rainfall values with smallest percentage difference as compared to ITU-R P.837 at 0.01% of time exceedance. AENSI Publications 2014 Article PeerReviewed application/pdf en http://irep.iium.edu.my/40706/1/014-AJBAS-Published.pdf Mohd Sobli, Nuurul Hudaa and Ismail, Ahmad Fadzil and Mohd. Isa, Farah Nadia and Mansor, Hasmah and Saidin, Nor Azlina and Zainal Abidin, Mohd Shahnan (2014) Comparison of different empirical conversion methods from 60-minute to 1-minute integration time in Malaysia. Australian Journal of Basic and Applied Sciences, 8 (24). pp. 321-327. ISSN ISSN 1991-8178 http://www.ajbasweb.com/
spellingShingle TA197 Engineering meteorology
Mohd Sobli, Nuurul Hudaa
Ismail, Ahmad Fadzil
Mohd. Isa, Farah Nadia
Mansor, Hasmah
Saidin, Nor Azlina
Zainal Abidin, Mohd Shahnan
Comparison of different empirical conversion methods from 60-minute to 1-minute integration time in Malaysia
title Comparison of different empirical conversion methods from 60-minute to 1-minute integration time in Malaysia
title_full Comparison of different empirical conversion methods from 60-minute to 1-minute integration time in Malaysia
title_fullStr Comparison of different empirical conversion methods from 60-minute to 1-minute integration time in Malaysia
title_full_unstemmed Comparison of different empirical conversion methods from 60-minute to 1-minute integration time in Malaysia
title_short Comparison of different empirical conversion methods from 60-minute to 1-minute integration time in Malaysia
title_sort comparison of different empirical conversion methods from 60-minute to 1-minute integration time in malaysia
topic TA197 Engineering meteorology
url http://irep.iium.edu.my/40706/
http://irep.iium.edu.my/40706/
http://irep.iium.edu.my/40706/1/014-AJBAS-Published.pdf