Climate Change Assessment of Water Resources in Sabah and Sarawak, Malaysia, Based on Dynamically-Downscaled GCM Projections Using a Regional Hydroclimate Model

Amin, Mohd Zaki Mat; Shaaban, A. J.; Ohara, N.; Kavvas, M. L.; Chen, Z. Q.; Kure, Shuichi; Jang, Sun Young

doi:10.1061/(asce)he.1943-5584.0001242

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…Evapotranspiration processes, but not the amount of precipitation, are impacted by land conversion from forests into OP plantations (Amin et al 2016). Oil palms planted on steep terrain cause negative hydrological impacts such as increased flooding risk, modification of river ecology, and sedimentation (Nainar et al 2018;Saadatkhah et al 2016).…”

Section: Emissions Soil and Climate (Sdg6 13)mentioning

confidence: 99%

Impact of Malaysian palm oil on sustainable development goals: co-benefits and trade-offs across mitigation strategies

et al. 2021

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Palm oil (PO) is an important source of livelihood, but unsustainable practices and widespread consumption may threaten human and planetary health. We reviewed 234 articles and summarized evidence on the impact of PO on health, social and economic aspects, environment, and biodiversity in the Malaysian context, and discuss mitigation strategies based on the sustainable development goals (SDGs). The evidence on health impact of PO is equivocal, with knowledge gaps on whether moderate consumption elevates risk for chronic diseases, but the benefits of phytonutrients (SDG2) and sensory characteristics of PO seem offset by its high proportion of saturated fat (SDG3). While PO contributes to economic growth (SDG9, 12), poverty alleviation (SDG1, 8, 10), enhanced food security (SDG2), alternative energy (SDG9), and long-term employment opportunities (SDG1), human rights issues and inequities attributed to PO production persist (SDG8). Environmental impacts arise through large-scale expansion of monoculture plantations associated with increased greenhouse gas emissions (SDG13), especially from converted carbon-rich peat lands, which can cause forest fires and annual trans-boundary haze; changes in microclimate properties and soil nutrient content (SDG6, 13); increased sedimentation and change of hydrological properties of streams near slopes (SDG6); and increased human wildlife conflicts, increase of invasive species occurrence, and reduced biodiversity (SDG14, 15). Practices such as biological pest control, circular waste management, multi-cropping and certification may mitigate negative impacts on environmental SDGs, without hampering progress of socioeconomic SDGs. While strategies focusing on improving practices within and surrounding plantations offer co-benefits for socioeconomic, environment and biodiversity-related SDGs, several challenges in achieving scalable solutions must be addressed to ensure holistic sustainability of PO in Malaysia for various stakeholders.

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Section: Emissions Soil and Climate (Sdg6 13)mentioning

confidence: 99%

Impact of Malaysian palm oil on sustainable development goals: co-benefits and trade-offs across mitigation strategies

et al. 2021

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“…Climate simulations by Global Climate Model (GCM) or Regional Climate Model (RCM) are generally used to assess the possible climate change. RCM provides improved resolution and better representation of the topography and various land-surface conditions (Amin et al, 2016). Several studies have been conducted using GCM or RCM to examine the impact of climate change on hydrology and water resources in Malaysia (Tan et al, 2017, Shaaban et al, 2011, Mohd et al, 2015.…”

Section: Introductionmentioning

confidence: 99%

Flood Hazard Assessment Under Climate Change Scenarios in Kelantan River Basin, Malaysia

Tam

Rahman

Harun

et al. 2021

Preprint

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Climate change can significantly alter the hydrological cycle and lead to severe hydrological disasters. This study aims to determine the impact of climate change on flood hazards in the Kelantan River Basin of Malaysia. The Climate Change Factor (CCF) is used to calculate 24-hour design rainfall with 50, 100 and 200-year return periods. A distributed hydrological model, Rainfall-Runoff-Inundation (RRI), is used to simulate flood inundation under current and future climate scenarios. The results indicate an increase in 50, 100, and 200 years, design rainfall, streamflow and flood hazard. The expected design rainfall and streamflow for 50, 100, and 200 years would increase by 36.6%, 37.9%, 42.7%, and 43.2%, 32.7%, 36.5%, respectively. Flood hazard is spatially variable in the Kelantan River Basin. Tanah Merah is the town that would face a significant increase in future flooding. The findings of this study can aid relevant agencies and government departments to comprehend the current and future flood hazard situation in the Kelantan River Basin. It would also assist them in formulating appropriate flood management strategies to mitigate future severe flood hazards.

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“…climate resilience experts noted that the climate change would also alter the hydrological cycle of river basins as exhibited in [4][5][6][7][8][9][10]. There are very few studies conducted in malaysia which explored the climate change impact on water resource systems such as [11][12][13][14][15]; and they presented notable changes in water resources availability during the 21st century. Inflow to a dam play a vital role for hydropower production as the water is the fuel to run the hydropower plants.…”

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confidence: 99%

Dam operation under changing climate: Analysing water availability and hydropower production from Murum Dam in Sarawak

Yusof¹,

Hussain²,

Mustafa³

2019

Int. J. SDP

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In this study, we assessed the climate change impact on water resources availability and hydropower energy yield from the murum Dam in Sarawak state of malaysia. Precipitation ensembles of three general circulation models from coupled model Intercomparison Project Phase 5 (cmIP5) were used to simulate daily inflows at murum Dam for the historical period of 1976-2015 and for the future period of 2011-2100 under two future scenarios (rcP4.5 and rcP8.5). a rainfall-runoff model was developed using australian Water balance model approach to simulate river inflows at murum Dam. reservoir operation model was developed using hec-resSim to simulate the operation for murum reservoir under the historical and future projected inflows. It is noted that the mean river inflow at murum Dam would increase by 4% and 11% during 2080s under rcP4.5 and rcP8.5, respectively. Similar results are noted while simulating the murum reservoir operation; it is noted that the average annual energy from murum hydroelectric Plant would increase by 5% and 12% during 2080s under rcP4.5 and rcP8.5, respectively.

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Climate Change Assessment of Water Resources in Sabah and Sarawak, Malaysia, Based on Dynamically-Downscaled GCM Projections Using a Regional Hydroclimate Model

Cited by 9 publications

References 11 publications

Impact of Malaysian palm oil on sustainable development goals: co-benefits and trade-offs across mitigation strategies

Impact of Malaysian palm oil on sustainable development goals: co-benefits and trade-offs across mitigation strategies

Flood Hazard Assessment Under Climate Change Scenarios in Kelantan River Basin, Malaysia

Dam operation under changing climate: Analysing water availability and hydropower production from Murum Dam in Sarawak

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