Trends of wet spells over peninsular Malaysia during monsoon seasons

This study attempts to trace changes in the wet spells over Peninsular Malaysia based on the daily rainfall data from 32 selected rainfall stations which include four sub-regions; northwest, west, south and east, for the period of 1975 to 2004. Six wet spells indices comprising of the main characte...

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Main Authors:	Sayang Mohd Deni, Jamaludin Suhaila, Wan Zawiah Wan Zin, Abdul Aziz Jemain
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2009
Online Access:	http://journalarticle.ukm.my/74/ http://journalarticle.ukm.my/74/ http://journalarticle.ukm.my/74/1/

id	ukm-74
recordtype	eprints
spelling	ukm-742016-12-14T06:26:20Z http://journalarticle.ukm.my/74/ Trends of wet spells over peninsular Malaysia during monsoon seasons Sayang Mohd Deni, Jamaludin Suhaila, Wan Zawiah Wan Zin, Abdul Aziz Jemain, This study attempts to trace changes in the wet spells over Peninsular Malaysia based on the daily rainfall data from 32 selected rainfall stations which include four sub-regions; northwest, west, south and east, for the period of 1975 to 2004. Six wet spells indices comprising of the main characteristics (maximum, mean, standard deviation), the persistency of two consecutive wet days and the frequency of the short and long duration of wet spells will be used to identify whether or not these indices increase or decrease over Peninsular Malaysia during the monsoon seasons. The study indicates that the eastern areas of the peninsula could be considered as the wettest areas since almost all the indices of wet spells over these areas are higher than over the other regions during the northeast monsoon (NE). The Mann-Kendall (MK) trend test revealed that almost all of the stations located in the eastern areas of the peninsula exhibited a positive trend in the mean, variability and persistency of wet spells indices during the NE monsoon, while a negative trend was observed during the southwest monsoon (SW) in these areas. Moreover, these indices showed a positive trend and at the same time a decreasing trend was observed in the frequency of the long wet spells in most stations located over the west coast of Peninsular Malaysia during the SW monsoon for the period of 1975 to 2004. Universiti Kebangsaan Malaysia 2009-04 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/74/1/ Sayang Mohd Deni, and Jamaludin Suhaila, and Wan Zawiah Wan Zin, and Abdul Aziz Jemain, (2009) Trends of wet spells over peninsular Malaysia during monsoon seasons. Sains Malaysiana, 38 (2). pp. 133-142. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This study attempts to trace changes in the wet spells over Peninsular Malaysia based on the daily rainfall data from 32 selected rainfall stations which include four sub-regions; northwest, west, south and east, for the period of 1975 to 2004. Six wet spells indices comprising of the main characteristics (maximum, mean, standard deviation), the persistency of two consecutive wet days and the frequency of the short and long duration of wet spells will be used to identify whether or not these indices increase or decrease over Peninsular Malaysia during the monsoon seasons. The study indicates that the eastern areas of the peninsula could be considered as the wettest areas since almost all the indices of wet spells over these areas are higher than over the other regions during the northeast monsoon (NE). The Mann-Kendall (MK) trend test revealed that almost all of the stations located in the eastern areas of the peninsula exhibited a positive trend in the mean, variability and persistency of wet spells indices during the NE monsoon, while a negative trend was observed during the southwest monsoon (SW) in these areas. Moreover, these indices showed a positive trend and at the same time a decreasing trend was observed in the frequency of the long wet spells in most stations located over the west coast of Peninsular Malaysia during the SW monsoon for the period of 1975 to 2004.
format	Article
author	Sayang Mohd Deni, Jamaludin Suhaila, Wan Zawiah Wan Zin, Abdul Aziz Jemain,
spellingShingle	Sayang Mohd Deni, Jamaludin Suhaila, Wan Zawiah Wan Zin, Abdul Aziz Jemain, Trends of wet spells over peninsular Malaysia during monsoon seasons
author_facet	Sayang Mohd Deni, Jamaludin Suhaila, Wan Zawiah Wan Zin, Abdul Aziz Jemain,
author_sort	Sayang Mohd Deni,
title	Trends of wet spells over peninsular Malaysia during monsoon seasons
title_short	Trends of wet spells over peninsular Malaysia during monsoon seasons
title_full	Trends of wet spells over peninsular Malaysia during monsoon seasons
title_fullStr	Trends of wet spells over peninsular Malaysia during monsoon seasons
title_full_unstemmed	Trends of wet spells over peninsular Malaysia during monsoon seasons
title_sort	trends of wet spells over peninsular malaysia during monsoon seasons
publisher	Universiti Kebangsaan Malaysia
publishDate	2009
url	http://journalarticle.ukm.my/74/ http://journalarticle.ukm.my/74/ http://journalarticle.ukm.my/74/1/
first_indexed	2023-09-18T19:01:11Z
last_indexed	2023-09-18T19:01:11Z
_version_	1777403084028248064

Trends of wet spells over peninsular Malaysia during monsoon seasons

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