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Groundwater assessment at Manukan Island, Sabah : multidisciplinary approaches.

A rapid increase in the number of tourists has placed a heavy demand for freshwater on Manukan Island, a small island located offcoast of Kota Kinabalu, Sabah. Hydrochemical and numerical approaches have been applied in this study to evaluate the groundwater quality of unconfined aquifer lying in Ma...

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Main Authors: Praveena, Sarva Mangala, Chin, Yik Lin, Aris, Ahmad Zaharin, Abdullah, Mohd Harun
Format: Article
Language:English
English
Published: Springer Verlag 2010
Online Access:http://psasir.upm.edu.my/id/eprint/14920/1/Groundwater%20assessment%20at%20Manukan%20Island.pdf
http://psasir.upm.edu.my/id/eprint/14920/
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spelling my.upm.eprints.149202015-10-29T03:48:20Z http://psasir.upm.edu.my/id/eprint/14920/ Groundwater assessment at Manukan Island, Sabah : multidisciplinary approaches. Praveena, Sarva Mangala Chin, Yik Lin Aris, Ahmad Zaharin Abdullah, Mohd Harun A rapid increase in the number of tourists has placed a heavy demand for freshwater on Manukan Island, a small island located offcoast of Kota Kinabalu, Sabah. Hydrochemical and numerical approaches have been applied in this study to evaluate the groundwater quality of unconfined aquifer lying in Manukan Island, Sabah, East Malaysia. This is vital to enhance better understanding about groundwater management. Hydrochemical analysis output indicated NaCl water type in sampling locations. Seawater intrusion is marked by its relatively high Na + , Mg 2+ , Cl À and SO 4 2À concentrations. Hydrochemical analysis output clearly showed the influence of seawater in groundwater of Manukan Island. The numerical model output proved the influence of seawater in groundwater of Manukan Island by indicating the upconing process at the beneath of the pumping well. Current status of sea-water intrusion in Manukan Island is about 14.6% of freshwater and seawater mixing ratio in low lying area of Manukan Island as simulated by SEAWAT-2000 model output. Numerical model SEAWAT-2000 output showed clearly that the upconing process is the possible route of seawater to influence the fresh groundwater aquifer chemistry in Manukan Island. The results have enhanced the current understanding of seawater intrusion in the study area. Future studies will focus on using numerical models to simulate and suggest suitable groundwater management plans in Manukan Island. Springer Verlag 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/14920/1/Groundwater%20assessment%20at%20Manukan%20Island.pdf Praveena, Sarva Mangala and Chin, Yik Lin and Aris, Ahmad Zaharin and Abdullah, Mohd Harun (2010) Groundwater assessment at Manukan Island, Sabah : multidisciplinary approaches. Natural Resources Research, 19 (4). pp. 279-291. ISSN 1520-7439; ESSN:1573-8981 10.1007/s11053-010-9124-y English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description A rapid increase in the number of tourists has placed a heavy demand for freshwater on Manukan Island, a small island located offcoast of Kota Kinabalu, Sabah. Hydrochemical and numerical approaches have been applied in this study to evaluate the groundwater quality of unconfined aquifer lying in Manukan Island, Sabah, East Malaysia. This is vital to enhance better understanding about groundwater management. Hydrochemical analysis output indicated NaCl water type in sampling locations. Seawater intrusion is marked by its relatively high Na + , Mg 2+ , Cl À and SO 4 2À concentrations. Hydrochemical analysis output clearly showed the influence of seawater in groundwater of Manukan Island. The numerical model output proved the influence of seawater in groundwater of Manukan Island by indicating the upconing process at the beneath of the pumping well. Current status of sea-water intrusion in Manukan Island is about 14.6% of freshwater and seawater mixing ratio in low lying area of Manukan Island as simulated by SEAWAT-2000 model output. Numerical model SEAWAT-2000 output showed clearly that the upconing process is the possible route of seawater to influence the fresh groundwater aquifer chemistry in Manukan Island. The results have enhanced the current understanding of seawater intrusion in the study area. Future studies will focus on using numerical models to simulate and suggest suitable groundwater management plans in Manukan Island.
format Article
author Praveena, Sarva Mangala
Chin, Yik Lin
Aris, Ahmad Zaharin
Abdullah, Mohd Harun
spellingShingle Praveena, Sarva Mangala
Chin, Yik Lin
Aris, Ahmad Zaharin
Abdullah, Mohd Harun
Groundwater assessment at Manukan Island, Sabah : multidisciplinary approaches.
author_facet Praveena, Sarva Mangala
Chin, Yik Lin
Aris, Ahmad Zaharin
Abdullah, Mohd Harun
author_sort Praveena, Sarva Mangala
title Groundwater assessment at Manukan Island, Sabah : multidisciplinary approaches.
title_short Groundwater assessment at Manukan Island, Sabah : multidisciplinary approaches.
title_full Groundwater assessment at Manukan Island, Sabah : multidisciplinary approaches.
title_fullStr Groundwater assessment at Manukan Island, Sabah : multidisciplinary approaches.
title_full_unstemmed Groundwater assessment at Manukan Island, Sabah : multidisciplinary approaches.
title_sort groundwater assessment at manukan island, sabah : multidisciplinary approaches.
publisher Springer Verlag
publishDate 2010
url http://psasir.upm.edu.my/id/eprint/14920/1/Groundwater%20assessment%20at%20Manukan%20Island.pdf
http://psasir.upm.edu.my/id/eprint/14920/
_version_ 1643825778760089600
score 13.211869

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