Recharge and aquifer response: Manukan islands aquifer, Sabah, Malaysia
Manukan Island is a small island located in North-West of Sabah, Malaysia was used as a case study area for numerical modeling of an aquifer response to recharge and pumping rates. The results in this study present the variations of recharge into the aquifer under the prediction simulations. The rec...
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| Format: | Article |
| Language: | English English |
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Thai Society of Higher Eduction Institutes on Environment
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/16445/ http://psasir.upm.edu.my/id/eprint/16445/1/Recharge%20and%20aquifer%20response.pdf |
| _version_ | 1848842964854374400 |
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| author | Praveena, Sarva Mangala Abdullah, Mohd Harun Aris, Ahmad Zaharin Bidin, Kawi |
| author_facet | Praveena, Sarva Mangala Abdullah, Mohd Harun Aris, Ahmad Zaharin Bidin, Kawi |
| author_sort | Praveena, Sarva Mangala |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Manukan Island is a small island located in North-West of Sabah, Malaysia was used as a case study area for numerical modeling of an aquifer response to recharge and pumping rates. The results in this study present the variations of recharge into the aquifer under the prediction simulations. The recharge rate increases the water level as indicated by hydraulic heads. This shows that it can alter groundwater of Manukan Island which has been suffering from an overexploration in its unconfined the aquifer. The increase in recharge rate (from 600 mm/year to 750 mm/year) increases the water level indicated by hydraulic heads. A reduction in pumping rate (from 0.072 m3/day to 0.058 m3/day) not only increases the amount of water levels in aquifer but also reduces the supply hence a deficit in supply. The increase in hydraulic heads depends on the percentage reduction of pumping and recharges rates. The well water has 1978.3 mg/L chloride with current pumping (0.072 m3/day) and recharge rates (600 mm/year). However, with an increased of recharge rate and current pumping rate it has decreased about 1.13%. In addition, reduction in pumping rate made the chloride concentration decreased about 2.8%. In general, a reduction in pumping with an increase in recharge rate leads to a decreased in chloride concentrations within the vicinity of cone of depression. Next, to further develop the numerical model, the model should focus on climate change variables such as consequences of climate change are increase in air temperature, increase in sea surface temperature, and more extreme weather conditions. These parameters are considered critical parameters for climate change impact modeling in aquifers. The behavior of the aquifer and its sustainable pumping rate can be done by applying a computer modeling component. |
| first_indexed | 2025-11-15T08:07:30Z |
| format | Article |
| id | upm-16445 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:07:30Z |
| publishDate | 2010 |
| publisher | Thai Society of Higher Eduction Institutes on Environment |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-164452015-10-29T01:58:14Z http://psasir.upm.edu.my/id/eprint/16445/ Recharge and aquifer response: Manukan islands aquifer, Sabah, Malaysia Praveena, Sarva Mangala Abdullah, Mohd Harun Aris, Ahmad Zaharin Bidin, Kawi Manukan Island is a small island located in North-West of Sabah, Malaysia was used as a case study area for numerical modeling of an aquifer response to recharge and pumping rates. The results in this study present the variations of recharge into the aquifer under the prediction simulations. The recharge rate increases the water level as indicated by hydraulic heads. This shows that it can alter groundwater of Manukan Island which has been suffering from an overexploration in its unconfined the aquifer. The increase in recharge rate (from 600 mm/year to 750 mm/year) increases the water level indicated by hydraulic heads. A reduction in pumping rate (from 0.072 m3/day to 0.058 m3/day) not only increases the amount of water levels in aquifer but also reduces the supply hence a deficit in supply. The increase in hydraulic heads depends on the percentage reduction of pumping and recharges rates. The well water has 1978.3 mg/L chloride with current pumping (0.072 m3/day) and recharge rates (600 mm/year). However, with an increased of recharge rate and current pumping rate it has decreased about 1.13%. In addition, reduction in pumping rate made the chloride concentration decreased about 2.8%. In general, a reduction in pumping with an increase in recharge rate leads to a decreased in chloride concentrations within the vicinity of cone of depression. Next, to further develop the numerical model, the model should focus on climate change variables such as consequences of climate change are increase in air temperature, increase in sea surface temperature, and more extreme weather conditions. These parameters are considered critical parameters for climate change impact modeling in aquifers. The behavior of the aquifer and its sustainable pumping rate can be done by applying a computer modeling component. Thai Society of Higher Eduction Institutes on Environment 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16445/1/Recharge%20and%20aquifer%20response.pdf Praveena, Sarva Mangala and Abdullah, Mohd Harun and Aris, Ahmad Zaharin and Bidin, Kawi (2010) Recharge and aquifer response: Manukan islands aquifer, Sabah, Malaysia. Environment Asia, 3 (1). pp. 72-81. ISSN 1906-1714 http://www.tshe.org/ea/abstracts/2010_3-1_11.html Aquifers - Manukan Island - Sabah - Malaysia Groundwater recharge Artificial groundwater recharge - Manukan Island - Sabah - Malaysia English |
| spellingShingle | Aquifers - Manukan Island - Sabah - Malaysia Groundwater recharge Artificial groundwater recharge - Manukan Island - Sabah - Malaysia Praveena, Sarva Mangala Abdullah, Mohd Harun Aris, Ahmad Zaharin Bidin, Kawi Recharge and aquifer response: Manukan islands aquifer, Sabah, Malaysia |
| title | Recharge and aquifer response: Manukan islands aquifer, Sabah, Malaysia |
| title_full | Recharge and aquifer response: Manukan islands aquifer, Sabah, Malaysia |
| title_fullStr | Recharge and aquifer response: Manukan islands aquifer, Sabah, Malaysia |
| title_full_unstemmed | Recharge and aquifer response: Manukan islands aquifer, Sabah, Malaysia |
| title_short | Recharge and aquifer response: Manukan islands aquifer, Sabah, Malaysia |
| title_sort | recharge and aquifer response: manukan islands aquifer, sabah, malaysia |
| topic | Aquifers - Manukan Island - Sabah - Malaysia Groundwater recharge Artificial groundwater recharge - Manukan Island - Sabah - Malaysia |
| url | http://psasir.upm.edu.my/id/eprint/16445/ http://psasir.upm.edu.my/id/eprint/16445/ http://psasir.upm.edu.my/id/eprint/16445/1/Recharge%20and%20aquifer%20response.pdf |