Regional Modeling of Climate Change Impact on Peninsular Malaysia Water Resources

Shaaban, A. J.; Amin, Mohd Zaki Mat; Chen, Z. Q.; Ohara, N.

doi:10.1061/(asce)he.1943-5584.0000305

Cited by 43 publications

(32 citation statements)

References 5 publications

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“…Shaaban et al . () applied a regional hydro‐climate model (RegHCM) to Peninsular Malaysia for a climate change study, and through dynamical downscaling of GCMPs by RegHCM, assessed the impact of future climate change on the hydrology and water resources at the local basin scale over several watersheds in Peninsular Malaysia. However, the dynamical downscaling method is computationally expensive and time consuming.…”

Section: Introductionmentioning

confidence: 97%

“…The dynamical downscaling has been also applied to the climate change studies (e.g. Kavvas et al, 1995Kavvas et al, , 2000Chen et al, 1996;Yoshitani et al, 2001;Guo et al, 2002;Wood et al, 2004;Horton et al, 2006;Fowler and Kilsby, 2007;Graham et al, 2007;Sato et al, 2007;Akhtar et al, 2008;Hara et al, 2008;Shaaban et al, 2011;Yoshitani et al, 2011). The dynamical downscaling method is based on the hydrodynamic/thermodynamic simulation of a regional hydro-climate system under the initial and boundary conditions that are provided from the GCM simulation data.…”

Section: Introductionmentioning

confidence: 99%

“…Akhtar et al (2008) presented estimates of water resources changes in three river basins in the Hindukush-Karakorum-Himalaya region under different glacier coverage scenarios using the PRECIS regional climate model. Shaaban et al (2011) applied a regional hydro-climate model (RegHCM) to Peninsular Malaysia for a climate change study, and through dynamical downscaling of GCMPs by RegHCM, assessed the impact of future climate change on the hydrology and water resources at the local basin scale over several watersheds in Peninsular Malaysia. However, the dynamical downscaling method is computationally expensive and time consuming.…”

Section: Introductionmentioning

confidence: 99%

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Hydrologic impact of regional climate change for the snow‐fed and glacier‐fed river basins in the Republic of Tajikistan: statistical downscaling of global climate model projections

Kure

Jang

Ohara

et al. 2012

Hydrological Processes

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Climate change due to global warming is a public concern in Central Asia. Because of specific orography and climate conditions, the republic of Tajikistan is considered as the main glacial center of Central Asia. In this study, regional climate change impacts in the two large basins of Tajikistan, Pyanj and Vaksh River basins located in the upstream sector of the Amu Darya River basin are analysed. A statistical regression method with model output statistics corrections using the ground observation data, Willmott archived dataset and GSMaP satellite driven dataset, was developed and applied to the basins to downscale the Global Climate Model Projections at a 0.1‐degree grid and to assess the regional climate change impacts at subbasin scale. It was found that snow and glacier melting are of fundamental importance for the state of the future water resources and flooding at the target basins since the air temperature had a clearly increasing trend toward the future. It was also found that the snowfall will decrease, but the rainfall will increase because of the gradual increase in the air temperature. Such changes may result in an increase in flash floods during the winter and the early spring, and in significant changes in the hydrological regime during a year in the future. Furthermore, the risks of floods in the target basins may be slightly increasing because of the increase in the frequencies and magnitudes of high daily precipitation and the increase in the rapid snowmelt with high air temperatures toward the future. Copyright © 2012 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrologic impact of regional climate change for the snow‐fed and glacier‐fed river basins in the Republic of Tajikistan: statistical downscaling of global climate model projections

Kure

Jang

Ohara

et al. 2012

Hydrological Processes

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“…Klang Valley) (Shaaban et al . ), subsequently endangering reservoir water storage and affecting water security. The basin management methodology will be scrutinized by integrating catchment processes and the physical–biological–chemical interactions in lakes to provide information for meaningful decision‐making.…”

Section: Framework and Directions For Lake Researchmentioning

confidence: 99%

A national research and development blueprint for sustainable lake basin management in Malaysia

Sharip¹,

Suratman²,

Shaaban³

2016

Lakes & Reservoirs

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The deterioration of water quality in lakes resulting from unsustainable catchment practices requires concerted efforts to address them, in the form of cooperation among government agencies and institutions, private bodies and the community‐at‐large. Research that provides an understanding of a lake's ecosystem is an important aspect of making informed decisions for sustainable management and governance of lakes. The present study describes the findings of literature reviews on Malaysian lakes, and the national efforts made to establish an agenda for lake research and development in Malaysia directed towards integrated lake basin management (ILBM). The main findings and outcomes of the National Lake Research Blueprint workshop in April 2014 on the issues facing lakes and reservoirs are highlighted. Seven research themes were identified, namely (i) ecosystem services and socio‐economic development, (ii) governance, (iii) water quality and pollution, (iv) eco‐hydrology and basin management, (v) biodiversity and natural products, (vi) physical limnology and hydrodynamics and (vii) technology. The goal is to enhance research and development on sustainable lake basin management directed to conservation and development targets. The findings of this study provide an integrated research framework that can support ILBM governance elements (pillars) elsewhere, and to call for researchers to participate in much‐needed research areas.

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“…A number studies revealed that there is a likelihood of a uniform annual increase in temperature and changes in the regional precipitation patterns for most of the watersheds of Malaysia (Zakaria and Shaaban, 2007;Shaaban et al, 2011). It has been reported that the rainfall in the east coastal region of peninsular Malaysia may increase by 10%, while the west coast and southern parts may drop by 5% (Zakaria and Shaaban, 2007).…”

Section: Introductionmentioning

confidence: 96%

Development of an optimal reservoir pumping operation for adaptation to climate change

et al. 2016

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Optimization of operation rule curve of Layang reservoir located in southern part of peninsular Malaysia under climate change uncertainties has been presented in this study. Downscaled climate data were incorporated in a lumped rainfall-runoff model to project daily reservoir inflow, which was then used to determine the reservoir operation rule curves to minimize the operation cost. The results reveal that climatic change will cause a rise of temperature in the range of 1.5-2.9 o C, but decrease in rainfall in most of the months in the end of this century which will casue a change in the seasonal pattern of inflow to reservoir. Comparison of historical and model generated operation costs indicates that annual savings of 23% and 33% is possible with optimized reservoir operation rule curves. Assessment of the performance of the optimized operation curve under climate change scenarios shows that it will be able to cope with the changing pattern of reservoir inflow with proper adjustment. It is expected that the method presented in this paper to derive pumping operation curves to optimize the total volume of water to be pumped from various sources to reservoir can be useful for reservoir operators in the context of climate change.

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Regional Modeling of Climate Change Impact on Peninsular Malaysia Water Resources

Cited by 43 publications

References 5 publications

Hydrologic impact of regional climate change for the snow‐fed and glacier‐fed river basins in the Republic of Tajikistan: statistical downscaling of global climate model projections

Hydrologic impact of regional climate change for the snow‐fed and glacier‐fed river basins in the Republic of Tajikistan: statistical downscaling of global climate model projections

A national research and development blueprint for sustainable lake basin management in Malaysia

Development of an optimal reservoir pumping operation for adaptation to climate change

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