Seasonal Hydrological Drought Indicator for Tropical Drought Identification

Fung, Kit Fai; Huang, Yuk Feng; Koo, Chai Hoon

doi:10.18178/ijesd.2020.11.2.1233

Cited by 3 publications

(3 citation statements)

References 16 publications

(13 reference statements)

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“…The most severe hydrological drought is occurred at station S21, located along the Bernam River, Selangor, in 1997-1998 According to Shaaban and Low (2003) 1997/1998 El-Nino drought event, particularly in Selangor districts and the Central region, and the effect lasted until September (Shaaban and Low, 2003). When comparing the 1997/1998 El-Nino to the 2015/2016 El-Nino drought, Fung et al (2020) discovered that high temperatures impacted the dry months in these times (Fung et al, 2020).…”

Section: Sdi Analysismentioning

confidence: 99%

Hydrological Drought across Peninsular Malaysia: Implication of drought index

Hasan

Razali

Muhammad

et al. 2021

Preprint

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Abstract. Drought is considered a damaging natural disaster for economic, societal, and ecological impacts. The challenge of drought is to determine the drought characteristics, frequency, duration and severity, vital for drought's impact control and mitigation strategies. This paper adopts the spatial pattern of Streamflow Drought Index (SDI) for three, six, nine and twelve months for the tropical climate at Peninsular Malaysia. About 40 years of daily streamflow data based on 42 hydrological discharge stations were analyzed to obtain these indices. The area under drought stress during the study period at different time scales is stable and approximately 24 % of the total area. The years 1997–1999, 2002 and 2016–2018 mark the most critical drought years, with more than 48 % of the entire basin area under hydrological drought. According to the spatial evaluation of drought characteristics, short-term droughts are frequent in most regions, with relatively high severity and frequency in Northeast and Southeast of Peninsular Malaysia, where the maximum frequency reached 35.7 % and 42.8 %, respectively. This outcome emphasizes the importance and necessity of the basin's drought action strategies. Early detection of a probable hydrological drought can improve in the implementation of drought prevention or mitigation strategies.

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Section: Sdi Analysismentioning

confidence: 99%

Hydrological Drought across Peninsular Malaysia: Implication of drought index

Hasan

Razali

Muhammad

et al. 2021

Preprint

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“…The future rainfall in several states in Malaysia is predicted to decrease due to climate change (Law and Bustami, 2013). In Malaysia, the spatial analysis study showed that most of the areas are more prone to a short term of drought and higher severity, especially at the north part of the Central Region and Southern Region and central part of the East Coast (Fung et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

An Overview of Rainwater Harvesting for Sustainable Future in Malaysia

Shaari

2020

E-BPJ

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This paper looks into the types of Rainwater Harvesting System (RWH), system, benefits, water governance and community awareness and level of acceptance of RWH implementation for future sustainability. RWH is not new in Malaysia, successful studies and existing projects can be as indicators for Malaysia to move further. This paper will discuss the benefits of RWH, types of system, water governance and level of public acceptance. A case study of RWH project in Sarawak will be discussed too as part of author contribution in these fields of research. Keywords: Rainwater harvesting system, sustainable future, case study, knowledge transfer eISSN: 2398-4287© 2020. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v5i14.2232

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“…findings is consistent with to the results reported byShaaban and Low (2003), which concluded that Peninsular Malaysia was severely affected by the 1997/1998 El-Nino drought, especially in Selangor and central region, and the impact lasted until September 1998. Comparing the 1997/1998 El-Nino drought with the 2015/2016 El-Nino drought,Fung et al (2020) found that high temperatures affected the dry months during these periods.SDI results in the study region show that moderate and severe drought events follow each other for more than one year on average. For example, moderate drought occurred in 2012 and 2013.…”

mentioning

confidence: 99%

Hydrological Drought across Peninsular Malaysia: Implication of Drought Index

Hasan

Razali

Muhammad

et al. 2021

Preprint

View full text Add to dashboard Cite

Abstract. Drought is considered a damaging natural disaster causing significant economic, social, and environmental impacts. The challenge of drought is to determine the characteristics of drought, its frequency, duration, and severity, which are critical for controlling the effects of drought and mitigation strategies. The objective of this study is to identify the drought characteristics and temporal assessment of drought using Streamflow Drought Index (SDI) and theory of runs (ToR). It also highlights the need and methods for selecting the most appropriate time scale for drought assessment, especially in tropical countries. Malaysia experiences tropical weather and monsoon seasons throughout the year with typically humid temperatures ranging from 20 °C to 30 °C. The different spatial patterns of SDI for three-, six-, nine-, and 12-month were adopted throughout Peninsular Malaysia, using 40 years of daily streamflow data from 42 gauging stations. The area under drought stress at different time scales during the study period is stable and accounts for about 24 % of the total area. The years 1997–1999, 2002 and 2016–2018 mark the most critical drought years, when more than 48 % of the total area of the basin was affected by hydrological drought. Spatial evaluation of drought characteristics shows that short-term droughts are common in most regions, with relatively high severity and frequency in the northeast and southeast of Peninsular Malaysia, where the maximum frequency reached 35.7 % and 42.8 %, respectively. The shortest scale (3-month) recorded more mild and moderate events. Since the most extensive time scale (12-month) includes more dry and wet periods, its high value may lead to misleading information for the early warning system. Using the results of this multi-scale SDI analysis, hydrologists, water managers, and policy makers can better understand the time scale selected for hydrological drought analysis. Short-term drought conditions show high interannual variability with the predominant pattern. It was shown that among the SDI time scales, the SDI for 3-month is the most suitable for effectively tracking hydrological droughts in tropical regions.

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Seasonal Hydrological Drought Indicator for Tropical Drought Identification

Cited by 3 publications

References 16 publications

Hydrological Drought across Peninsular Malaysia: Implication of drought index

Hydrological Drought across Peninsular Malaysia: Implication of drought index

An Overview of Rainwater Harvesting for Sustainable Future in Malaysia

Hydrological Drought across Peninsular Malaysia: Implication of Drought Index

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