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Estimation of impact of artificial groundwater recharge in small islands using a numerical modeling approach

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dc.contributor.author Rubyhanusha, P
dc.contributor.author Rajapakse, L
dc.contributor.editor Weeraddana, C
dc.contributor.editor Edussooriya, CUS
dc.contributor.editor Abeysooriya, RP
dc.date.accessioned 2022-08-09T03:56:36Z
dc.date.available 2022-08-09T03:56:36Z
dc.date.issued 2020-07
dc.identifier.citation P. Rubyhanusha and L. Rajapakse, "Estimation of Impact of Artificial Groundwater Recharge in Small Islands Using a Numerical Modeling Approach," 2020 Moratuwa Engineering Research Conference (MERCon), 2020, pp. 366-371, doi: 10.1109/MERCon50084.2020.9185243. en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/18563
dc.description.abstract There are many small islands all over the world which face scarcity of drinking water. Recharge is an important factor which controls the available freshwater lens. In addition to natural recharge, artificial recharge can be used to increase the freshwater lens volume. The objective of this study is to identify the impact of artificial recharge in small islands. Three islands in the Maldives were selected for this study. A model was developed by using SUTRA (Saturated Unsaturated TRAnsient Model) with Model Muse as graphical user interface and calibrated until the percentage difference between simulated and observed freshwater lens volume is less than 10%. The impact of artificial recharge was identified by increasing the recharge rate by 5% and 10% of annual rainfall and simulating the previously calibrated model. The freshwater lens thickness and volume increase with artificial recharge. With 5% of annual rainfall as artificial recharge, the freshwater lens thickness of Dharavandhoo, Henbadhoo and Bodufulhadhoo island increased from 5.2 m to 6.9 m, 2.6 m to 4m and 1.5 m to 2.7 m, respectively. Based on these results, it can be concluded that artificial recharge will be a sustainable solution to overcome the scarcity of drinking water in small islands. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.relation.uri https://ieeexplore.ieee.org/document/9185243 en_US
dc.subject freshwater lens en_US
dc.subject atolls en_US
dc.subject Maldive islands en_US
dc.subject SUTRA - Model Muse en_US
dc.title Estimation of impact of artificial groundwater recharge in small islands using a numerical modeling approach en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Engineering Research Unit, University of Moratuwa en_US
dc.identifier.year 2020 en_US
dc.identifier.conference Moratuwa Engineering Research Conference 2020 en_US
dc.identifier.place Moratuwa, Sri Lanka en_US
dc.identifier.pgnos pp. 366-371 en_US
dc.identifier.proceeding Proceedings of Moratuwa Engineering Research Conference 2020 en_US
dc.identifier.email rubyhanusha@gmail.com en_US
dc.identifier.email lalith@uom.lk en_US
dc.identifier.doi 10.1109/MERCon50084.2020.9185243 en_US


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