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Geoelectrical subsurface characterization: A case study of saltwater intrusion in Kudat, Sabah

Saltwater intrusion is one of the primary sources of groundwater contamination, especially near the coastal line, and it is crucial to monitor saltwater intrusion to protect fresh groundwater. Due to the proximity of the coastal line, the area within Kudat Peninsula that was formed by the ophiolite...

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Main Authors: Fatin Nabilahuda Ismail, Baba Musta, Hardianshah Saleh, Farashazillah Yahya
Format: Proceedings
Language:English
English
Published: IOP Publishing Ltd. 2022
Subjects:
GB1001-1199.8 Groundwater. Hydrogeology
Online Access:https://eprints.ums.edu.my/id/eprint/34468/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/34468/2/FULLTEXT.pdf
https://eprints.ums.edu.my/id/eprint/34468/
https://ui.adsabs.harvard.edu/abs/2022JPhCS2314a2014I/abstract
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spelling my.ums.eprints.344682022-10-20T01:59:05Z https://eprints.ums.edu.my/id/eprint/34468/ Geoelectrical subsurface characterization: A case study of saltwater intrusion in Kudat, Sabah Fatin Nabilahuda Ismail Baba Musta Hardianshah Saleh Farashazillah Yahya GB1001-1199.8 Groundwater. Hydrogeology Saltwater intrusion is one of the primary sources of groundwater contamination, especially near the coastal line, and it is crucial to monitor saltwater intrusion to protect fresh groundwater. Due to the proximity of the coastal line, the area within Kudat Peninsula that was formed by the ophiolite basement, Kudat Formation Chert-Spilite Formation, and alluvium deposit is susceptible to saltwater intrusion. In this study, two survey lines of geoelectrical resistivity and induced polarization imaging survey with a total length of 200 m were carried out. The Wenner configuration was used to characterize the subsurface of the Kudat Peninsula. The interpolation between geoelectrical resistivity and chargeability profiles provided better interpretations of the subsurface environment. The saltwater intrusion zone displays a resistivity value between 0 – 5.0 Ωm a nd a chargeability value between 0 – 3.0 ms. The results showed that saltwater intrusion was detected at depths as shallow as 1.25 m to 36.90 m and intruded as far as 218.00 m into the mainland, from the coastline. IOP Publishing Ltd. 2022-08 Proceedings PeerReviewed text en https://eprints.ums.edu.my/id/eprint/34468/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/34468/2/FULLTEXT.pdf Fatin Nabilahuda Ismail and Baba Musta and Hardianshah Saleh and Farashazillah Yahya (2022) Geoelectrical subsurface characterization: A case study of saltwater intrusion in Kudat, Sabah. https://ui.adsabs.harvard.edu/abs/2022JPhCS2314a2014I/abstract
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic GB1001-1199.8 Groundwater. Hydrogeology
spellingShingle GB1001-1199.8 Groundwater. Hydrogeology
Fatin Nabilahuda Ismail
Baba Musta
Hardianshah Saleh
Farashazillah Yahya
Geoelectrical subsurface characterization: A case study of saltwater intrusion in Kudat, Sabah
description Saltwater intrusion is one of the primary sources of groundwater contamination, especially near the coastal line, and it is crucial to monitor saltwater intrusion to protect fresh groundwater. Due to the proximity of the coastal line, the area within Kudat Peninsula that was formed by the ophiolite basement, Kudat Formation Chert-Spilite Formation, and alluvium deposit is susceptible to saltwater intrusion. In this study, two survey lines of geoelectrical resistivity and induced polarization imaging survey with a total length of 200 m were carried out. The Wenner configuration was used to characterize the subsurface of the Kudat Peninsula. The interpolation between geoelectrical resistivity and chargeability profiles provided better interpretations of the subsurface environment. The saltwater intrusion zone displays a resistivity value between 0 – 5.0 Ωm a nd a chargeability value between 0 – 3.0 ms. The results showed that saltwater intrusion was detected at depths as shallow as 1.25 m to 36.90 m and intruded as far as 218.00 m into the mainland, from the coastline.
format Proceedings
author Fatin Nabilahuda Ismail
Baba Musta
Hardianshah Saleh
Farashazillah Yahya
author_facet Fatin Nabilahuda Ismail
Baba Musta
Hardianshah Saleh
Farashazillah Yahya
author_sort Fatin Nabilahuda Ismail
title Geoelectrical subsurface characterization: A case study of saltwater intrusion in Kudat, Sabah
title_short Geoelectrical subsurface characterization: A case study of saltwater intrusion in Kudat, Sabah
title_full Geoelectrical subsurface characterization: A case study of saltwater intrusion in Kudat, Sabah
title_fullStr Geoelectrical subsurface characterization: A case study of saltwater intrusion in Kudat, Sabah
title_full_unstemmed Geoelectrical subsurface characterization: A case study of saltwater intrusion in Kudat, Sabah
title_sort geoelectrical subsurface characterization: a case study of saltwater intrusion in kudat, sabah
publisher IOP Publishing Ltd.
publishDate 2022
url https://eprints.ums.edu.my/id/eprint/34468/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/34468/2/FULLTEXT.pdf
https://eprints.ums.edu.my/id/eprint/34468/
https://ui.adsabs.harvard.edu/abs/2022JPhCS2314a2014I/abstract
_version_ 1760231299506765824
score 13.211869

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