Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia

Data on intensity–duration–frequency or design rainfall are one of the most important information required for various hydrological and water resources studies. However, such crucial data are often unavailable in various parts of the world due to lack of enough rain gauging stations. It is not onl...

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Main Authors:	Al Mamun, Abdullah, Salleh, Md. Noor, Mohamad Noor, Hanapi
Format:	Article
Language:	English English
Published:	Springer International Publishing 2018
Subjects:	Q Science (General)
Online Access:	http://irep.iium.edu.my/70335/ http://irep.iium.edu.my/70335/ http://irep.iium.edu.my/70335/ http://irep.iium.edu.my/70335/1/70335%20Estimation%20of%20short%E2%80%91duration%20rainfall%20intensity.pdf http://irep.iium.edu.my/70335/2/70335%20Estimation%20of%20short%E2%80%91duration%20rainfall%20intensity%20WOS.pdf

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recordtype	eprints
spelling	iium-703352019-01-30T03:31:33Z http://irep.iium.edu.my/70335/ Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia Al Mamun, Abdullah Salleh, Md. Noor Mohamad Noor, Hanapi Q Science (General) Data on intensity–duration–frequency or design rainfall are one of the most important information required for various hydrological and water resources studies. However, such crucial data are often unavailable in various parts of the world due to lack of enough rain gauging stations. It is not only tedious to determine design rainfall from the raw data but also occasionally impossible to calculate due to lack or absence of short-duration rainfall data. Generally, the manual rain gauges outnumber the automatic gauges, making it difcult to have adequate data on short-duration rainfall values, which is very important for urban hydrology. However, no graphical or mathematical relation could be found in the literature, which can be used for quick estimation of short-duration design rainfall from the daily rainfall data recorded by the manual stations. Annual maximum rainfall data from 143 rain gauging stations located at Klang Valley in Malaysia were used in this study. Statistical analyses and logarithmic graph ftting techniques were used to develop excellent correlation between short-duration rainfall and daily rainfall values for 96 automatic and 46 manual stations. Rainfall data analyze the design rainfall data of various duration and return periods. The 15, 30 and 45 min of short-duration rainfall, which is the most common rainfall duration in the study area, was observed to be 32.4%, 47.1% and 57.4% of the daily rainfall amount, respectively. The amount of rainfall during 1-, 2- and 3-h storm events contribute 64.9%, 76.5% and 80.9% of the daily rainfall. Such relations can be used for quick estimation of short-duration rainfall resulting in saving time, money and other resources Springer International Publishing 2018-11 Article PeerReviewed application/pdf en http://irep.iium.edu.my/70335/1/70335%20Estimation%20of%20short%E2%80%91duration%20rainfall%20intensity.pdf application/pdf en http://irep.iium.edu.my/70335/2/70335%20Estimation%20of%20short%E2%80%91duration%20rainfall%20intensity%20WOS.pdf Al Mamun, Abdullah and Salleh, Md. Noor and Mohamad Noor, Hanapi (2018) Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia. Applied Water Science, 8 (7). pp. 1-10. ISSN 2190-5487 E-ISSN 2190-5495 https://link.springer.com/content/pdf/10.1007%2Fs13201-018-0854-z.pdf 10.1007/s13201-018-0854-z
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	Q Science (General)
spellingShingle	Q Science (General) Al Mamun, Abdullah Salleh, Md. Noor Mohamad Noor, Hanapi Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia
description	Data on intensity–duration–frequency or design rainfall are one of the most important information required for various hydrological and water resources studies. However, such crucial data are often unavailable in various parts of the world due to lack of enough rain gauging stations. It is not only tedious to determine design rainfall from the raw data but also occasionally impossible to calculate due to lack or absence of short-duration rainfall data. Generally, the manual rain gauges outnumber the automatic gauges, making it difcult to have adequate data on short-duration rainfall values, which is very important for urban hydrology. However, no graphical or mathematical relation could be found in the literature, which can be used for quick estimation of short-duration design rainfall from the daily rainfall data recorded by the manual stations. Annual maximum rainfall data from 143 rain gauging stations located at Klang Valley in Malaysia were used in this study. Statistical analyses and logarithmic graph ftting techniques were used to develop excellent correlation between short-duration rainfall and daily rainfall values for 96 automatic and 46 manual stations. Rainfall data analyze the design rainfall data of various duration and return periods. The 15, 30 and 45 min of short-duration rainfall, which is the most common rainfall duration in the study area, was observed to be 32.4%, 47.1% and 57.4% of the daily rainfall amount, respectively. The amount of rainfall during 1-, 2- and 3-h storm events contribute 64.9%, 76.5% and 80.9% of the daily rainfall. Such relations can be used for quick estimation of short-duration rainfall resulting in saving time, money and other resources
format	Article
author	Al Mamun, Abdullah Salleh, Md. Noor Mohamad Noor, Hanapi
author_facet	Al Mamun, Abdullah Salleh, Md. Noor Mohamad Noor, Hanapi
author_sort	Al Mamun, Abdullah
title	Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia
title_short	Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia
title_full	Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia
title_fullStr	Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia
title_full_unstemmed	Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia
title_sort	estimation of short‑duration rainfall intensity from daily rainfall values in klang valley, malaysia
publisher	Springer International Publishing
publishDate	2018
url	http://irep.iium.edu.my/70335/ http://irep.iium.edu.my/70335/ http://irep.iium.edu.my/70335/ http://irep.iium.edu.my/70335/1/70335%20Estimation%20of%20short%E2%80%91duration%20rainfall%20intensity.pdf http://irep.iium.edu.my/70335/2/70335%20Estimation%20of%20short%E2%80%91duration%20rainfall%20intensity%20WOS.pdf
first_indexed	2023-09-18T21:39:52Z
last_indexed	2023-09-18T21:39:52Z
_version_	1777413067415486464

Estimation of short‑duration rainfall intensity from daily rainfall values in Klang Valley, Malaysia

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