Numerical simulation of electric conductivity fluctuations due to groundwater pumping in a coastal aquifer

E. D.P. Perera, K. Jinno, Yoshinari Hiroshiro, A. Tsutsumi

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The Motooka area of Fukuoka prefecture of Japan is an agricultural area located on a coastal aquifer where the groundwater is being exploited for drinking and green house agriculture. The groundwater is the main water supply for drinking and greenhouse agriculture. With the increased water demand, groundwater is being extracted at the rate of 1,200m3/day. The salinity of the pumped water has been analyzed periodically and it has found that the aquifer is affected by the saltwater intrusion due to over exploitation of groundwater. The high salinity of pumped water is not suitable for both drinking and greenhouse farming. The salinity fluctuation in the pumped groundwater has become an important issue to attract much attention of the green house farmers due to its significant effect on their crops. To the authors' knowledge, research on the salinity fluctuations with groundwater pumping and their effects on seasonal recharge of groundwater in the Motooka region has not been conducted thus far. In the field of numerical modeling of saltwater intrusion, so far the simulation of salinity fluctuations is not significant. Therefore authors found a keen interest on numerical simulation of the saltwater intrusion and the salinity fluctuation phenomenon in the Motooka. To this end, a three dimensional density dependent finite difference solute transport numerical model was developed. Due to the distributed nature of pumping well locations and non-uniform geological conditions; a three-dimensional model was needed to understand the saltwater intrusion and salinity fluctuations in the Motooka. The developed model is capable of simulating the saltwater intrusion and the salinity fluctuations due to groundwater pumping for satisfactory extent.

Original languageEnglish
Title of host publicationAdvances in Geosciences
Subtitle of host publicationVolume 17: Hydrological Science (HS)
PublisherWorld Scientific Publishing Co.
Pages79-88
Number of pages10
ISBN (Electronic)9789812838124
ISBN (Print)9812838082, 9789812838117
DOIs
Publication statusPublished - Jan 1 2010

Fingerprint

coastal aquifer
pumping
conductivity
saline intrusion
salinity
groundwater
simulation
drinking
agriculture
solute transport
water demand
recharge
agricultural land
water supply
aquifer
well
water
crop

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

Cite this

Perera, E. D. P., Jinno, K., Hiroshiro, Y., & Tsutsumi, A. (2010). Numerical simulation of electric conductivity fluctuations due to groundwater pumping in a coastal aquifer. In Advances in Geosciences: Volume 17: Hydrological Science (HS) (pp. 79-88). World Scientific Publishing Co.. https://doi.org/10.1142/7158-vol17

Numerical simulation of electric conductivity fluctuations due to groundwater pumping in a coastal aquifer. / Perera, E. D.P.; Jinno, K.; Hiroshiro, Yoshinari; Tsutsumi, A.

Advances in Geosciences: Volume 17: Hydrological Science (HS). World Scientific Publishing Co., 2010. p. 79-88.

Research output: Chapter in Book/Report/Conference proceedingChapter

Perera, EDP, Jinno, K, Hiroshiro, Y & Tsutsumi, A 2010, Numerical simulation of electric conductivity fluctuations due to groundwater pumping in a coastal aquifer. in Advances in Geosciences: Volume 17: Hydrological Science (HS). World Scientific Publishing Co., pp. 79-88. https://doi.org/10.1142/7158-vol17
Perera EDP, Jinno K, Hiroshiro Y, Tsutsumi A. Numerical simulation of electric conductivity fluctuations due to groundwater pumping in a coastal aquifer. In Advances in Geosciences: Volume 17: Hydrological Science (HS). World Scientific Publishing Co. 2010. p. 79-88 https://doi.org/10.1142/7158-vol17
Perera, E. D.P. ; Jinno, K. ; Hiroshiro, Yoshinari ; Tsutsumi, A. / Numerical simulation of electric conductivity fluctuations due to groundwater pumping in a coastal aquifer. Advances in Geosciences: Volume 17: Hydrological Science (HS). World Scientific Publishing Co., 2010. pp. 79-88
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