Modeling and control of saltwater intrusion in a coastal aquifer of Andhra Pradesh, India

Datta, Bithin, Vennalakanti, Harikrishna, and Dhar, Anirban (2009) Modeling and control of saltwater intrusion in a coastal aquifer of Andhra Pradesh, India. Journal of Hydro-Environment Research, 3 (3). pp. 148-159.

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The saltwater intrusion in a coastal aquifer is a highly complex and nonlinear process. The management of coastal aquifers requires careful planning of withdrawal strategies for control and remediation of saltwater intrusion. Prediction and control of future saltwater distribution in coastal aquifer may be possible by simulating the processes utilizing mathematical models. A finite element based flow and transport simulation model is implemented for a coastal aquifer in Nellore district of Andhra Pradesh, India. The model is calibrated for two years of time period between July 2000 and July 2002, both in terms of hydraulic heads and salt concentration. The calibrated model is validated for next two years in terms of head and salt concentration with the available data for July 2002 and July 2004. The limited data availability in this study area may represent a typical real life situation. The calibrated and partially validated simulation model is used to evaluate the effectiveness of planned pumping strategies to locally control the saltwater intrusion in the study area. These limited evaluations show the potential for using a planned pumping strategy and therefore hydraulic control measures to affect the saltwater intrusion process. These simulations are also useful for evolving planned pumping strategies for control of saltwater intrusion in a coastal aquifer.

Item ID: 9957
Item Type: Article (Research - C1)
ISSN: 1570-6443
Keywords: saltwater intrusion; coastal aquifer; groundwater modeling; groundwater management; FEMWATER
Date Deposited: 12 Apr 2010 03:09
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090509 Water Resources Engineering @ 50%
09 ENGINEERING > 0907 Environmental Engineering > 090702 Environmental Engineering Modelling @ 50%
SEO Codes: 96 ENVIRONMENT > 9606 Environmental and Natural Resource Evaluation > 960604 Environmental Management Systems @ 50%
96 ENVIRONMENT > 9609 Land and Water Management > 960999 Land and Water Management of Environments not elsewhere classified @ 25%
96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960506 Ecosystem Assessment and Management of Fresh, Ground and Surface Water Environments @ 25%
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