Browsing by Author "Zainudin Othman"

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    Comparison of water table fluctuation and chloride mass balance methods for recharge estimation in a tropical rainforest climate: a case study from Kelantan River catchment, Malaysia
    (Springer, 2015) Seyed Reza Saghravani; Ismail Yusoff; Wan Zakaria Wan Md Tahir; Zainudin Othman
    Estimated groundwater recharge for selected locations in northeast Peninsular Malaysia (North Kelantan River catchment) was determined using the water table fluctuation (WTF) and chloride mass balance (CMB) methods. The WTF method recharge estimates were compared to the CMB method estimates to see if results are similar and the methods can be applied in a humid, tropical region, such as Malaysia.
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    Estimating groundwater recharge based on mass balance evaluation of unsaturated zone in a coastal catchment characterized by tropical rainforest weather conditions
    (Springer, 2016) Seyed Reza Saghravani; Ismail Yusoff; Wan Zakaria Wan Md Tahir; Zainudin Othman
    Estimation of recharge is necessary for evaluating water resources in the north Kelantan catchment of Malaysia due to rapid development and consequently over-drafting of available groundwater. In order to determine the amount of recharge, a study of natural salts (i.e., chloride and sulfate) was conducted to estimate groundwater recharge rates. Studies of the chloride mass balance (CMB) and sulfate mass balance (SMB) were carried out in the unsaturated zone under rainforest weather conditions with a relatively shallow groundwater table.
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    Impact of land development on water quantity and water quality in Peninsular Malaysia
    (Environmental Management Society Malaysia, 2011) Mohamad Suhaily Yusri Che Ngah; Zainudin Othman
    The steady population growth in Malaysia has been responsible for the usage of relatively large volumes of water. Even though water quality has begun to attain some prominence, its relation to water quantity and to water system operation has been largely overlooked. Human activities frequently challenge the quantity and quality of water in Malaysian water resources. These include activities that use river water directly - such as irrigation and land-based activities that generate nutrients and pollutants, while also changing the runoff patterns of their catchments. A growing population with growing expectations places increasing pressure on our water resources, stretching their ability in maintaining the standards of water quantity and quality.