Publication:
Comparative assessment of drought indices for evaluating drought patterns in Peninsular Malaysia

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dc.citedby1
dc.contributor.authorNg J.L.en_US
dc.contributor.authorHuang Y.F.en_US
dc.contributor.authorChong A.H.en_US
dc.contributor.authorLee J.C.en_US
dc.contributor.authorAbdulkareem M.en_US
dc.contributor.authorNoh N.I.F.M.en_US
dc.contributor.authorMirzaei M.en_US
dc.contributor.authorAhmed A.N.en_US
dc.contributor.authorid57192698412en_US
dc.contributor.authorid55807263900en_US
dc.contributor.authorid58739268700en_US
dc.contributor.authorid57191968584en_US
dc.contributor.authorid57202958309en_US
dc.contributor.authorid57199323111en_US
dc.contributor.authorid54941702700en_US
dc.contributor.authorid57214837520en_US
dc.date.accessioned2024-10-14T03:17:26Z
dc.date.available2024-10-14T03:17:26Z
dc.date.issued2023
dc.description.abstractDrought has been the main environmental issue in Peninsular Malaysia. Hence, this study undertook a thorough evaluation of drought assessment methodologies and focused on the temporal analysis of multiple drought indices, namely, the standardised precipitation index (SPI), deciles index (DI), percent of normal precipitation index (PNPI), rainfall anomaly index (RAI) and Z-score index (ZSI) � across timescales of one-, six-and 12-month durations. This assessment incorporates the average moving range (AMR), Mann�Kendall (MK) test and Sen�s slope estimator in temporal analysis and the results showed that shorter timescales lead to higher fluctuation in AMR values, indicating short-term droughts are best assessed using drought indices of shorter timescale. It was found that most drought indices exhibited a similar trend and trend magnitude in all timescales. SPI is utilised as the standard model for the accuracy evaluation of drought indices using root mean square error (RMSE), mean absolute error (MAE) and mean absolute percentage error (MAPE). The results showed that ZSI has the highest accuracy of all indices. The novelty of this study lies in evaluating the accuracy and temporal characteristics of precipitation-based drought indices in tropical areas, particularly in Peninsular Malaysia. � 2023 The Authors.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.2166/wcc.2023.546
dc.identifier.epage4197
dc.identifier.issue11
dc.identifier.scopus2-s2.0-85178492154
dc.identifier.spage4183
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85178492154&doi=10.2166%2fwcc.2023.546&partnerID=40&md5=e2e1cd70730bd94fc32a6746d5f96188
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/33922
dc.identifier.volume14
dc.pagecount14
dc.publisherIWA Publishingen_US
dc.relation.ispartofAll Open Access
dc.relation.ispartofGold Open Access
dc.sourceScopus
dc.sourcetitleJournal of Water and Climate Change
dc.subjectdrought
dc.subjectdrought index
dc.subjectprecipitation
dc.subjecttemporal analysis
dc.subjectMalaysia
dc.subjectErrors
dc.subjectMean square error
dc.subjectStream flow
dc.subjectAssessment methodologies
dc.subjectComparative assessment
dc.subjectDrought index
dc.subjectEnvironmental issues
dc.subjectMalaysia
dc.subjectMoving range
dc.subjectStandardized precipitation index
dc.subjectTemporal analysis
dc.subjectTime-scales
dc.subjectZ-scores
dc.subjectcomparative study
dc.subjectdrought
dc.subjectenvironmental issue
dc.subjectprecipitation (climatology)
dc.subjectrainfall
dc.subjecttemporal analysis
dc.subjectDrought
dc.titleComparative assessment of drought indices for evaluating drought patterns in Peninsular Malaysiaen_US
dc.typeArticleen_US
dspace.entity.typePublication
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