The vulnerability of the aquifer units in the flood-affected areas of the east coast Peninsula Malaysia

John Stephen Kayode, Mohd Hariri Arifin, Mohd Khairul Amri Kamarudin, Azimah Hussin, Mohd Nawawi Mohd Nordin, Norsyafina Roslan

Research output: Contribution to journalArticle

Abstract

During the periods of strong winter monsoon, the occurrence of extensive floods in the low-lying areas mostly in the east coast part of the Peninsula Malaysia continually results in huge destruction to public and private utilities, damage to farmlands, and in addition, leads to loss of lives with outbreak of epidemic which prompted evacuations of hundreds of thousands from their homes and communities. This paper presents research results on the impacts of subsurface water on the east coast Peninsula Malaysian floods, therefore complementing the existing data on the flooding events in this area. In our finding, we present the vulnerability of the aquifer units in the flood-affected communities to floods during intense precipitations and then proffer suggestions to prevent near future occurrence. The partial coverage of the alteration zone that is completely nonexistent in this area should have provided the needed essential storage and transmissivity if present in the east coast Peninsula Malaysia environments. Most of the aquifer units in this part are unconfined and are opened to surface water. We applied electrical resistivity tomography methods of geophysical prospecting and borehole lithologic logs to study the subsurface structures prone to flooding in addition to the information on the rainfall data. However, the GOD vulnerability Index rating method was modified and improved upon with the additions of fluctuations of borehole water heights FBWH and the river bank heights RBH together with the topography parameters to produce the GOD-FBRT Index that better refine the method by considering the literal movement of fluids within the subsurface. The configuration of the Kelantan River basin land system as delineated by this study makes the entire east coast areas vulnerable to flooding with the degree of vulnerability as computed in the study area that ranged between 0.1 (very low) and 1.0 (very high).

Original languageEnglish
Article number146
JournalArabian Journal of Geosciences
Volume12
Issue number5
DOIs
Publication statusPublished - 1 Mar 2019

Fingerprint

vulnerability
aquifer
flooding
coast
borehole
river bank
transmissivity
tomography
electrical resistivity
monsoon
agricultural land
river basin
topography
surface water
water
rainfall
damage
fluid
winter
method

Keywords

  • Floods
  • GOD-FBRT index
  • Surface-subsurface water transmissivity
  • Vulnerability
  • Weathered/fractured bedrocks

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

The vulnerability of the aquifer units in the flood-affected areas of the east coast Peninsula Malaysia. / Kayode, John Stephen; Arifin, Mohd Hariri; Kamarudin, Mohd Khairul Amri; Hussin, Azimah; Nordin, Mohd Nawawi Mohd; Roslan, Norsyafina.

In: Arabian Journal of Geosciences, Vol. 12, No. 5, 146, 01.03.2019.

Research output: Contribution to journalArticle

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