Effect of pumping on hydrologic system of a young satellite city in south Bengal Basin through numerical modelling: past, present and future

Effect of pumping on hydrologic system of a young satellite city in south Bengal Basin through... Hydrogeologic analysis based on groundwater modelling was used to evaluate the past, present and possible future states of the groundwater system that will supply water to a future population of more than 1.5 million of the newly developed urban centre of Rajarhat New Town (RNT). This city is located in the north eastern fringe of Kolkata megacity. Pumping of groundwater beneath this satellite city will modify the subsurface hydrologic system. Drastic changes in head distribution patterns, recharge areas of the RNT aquifer and outflow areas of arsenic-affected wells in adjacent contiguous aquifer under current and future development conditions indicate that human impacts far outweigh topographic and geologic forces on the groundwater flow system. Interference effects were also observed in wells of the nearby urban centres. Future groundwater abstraction in RNT may lead to further reduction in groundwater levels in the neighbouring Kolkata megacity and may increase the rate of transport of contaminants to the RNT aquifer. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Sustainable Water Resources Management Springer Journals

Effect of pumping on hydrologic system of a young satellite city in south Bengal Basin through numerical modelling: past, present and future

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Publisher
Springer International Publishing
Copyright
Copyright © 2017 by Springer International Publishing Switzerland
Subject
Earth Sciences; Hydrogeology; Hydrology/Water Resources; Sustainable Development; Water Policy/Water Governance/Water Management; Development Economics
ISSN
2363-5037
eISSN
2363-5045
D.O.I.
10.1007/s40899-017-0098-3
Publisher site
See Article on Publisher Site

Abstract

Hydrogeologic analysis based on groundwater modelling was used to evaluate the past, present and possible future states of the groundwater system that will supply water to a future population of more than 1.5 million of the newly developed urban centre of Rajarhat New Town (RNT). This city is located in the north eastern fringe of Kolkata megacity. Pumping of groundwater beneath this satellite city will modify the subsurface hydrologic system. Drastic changes in head distribution patterns, recharge areas of the RNT aquifer and outflow areas of arsenic-affected wells in adjacent contiguous aquifer under current and future development conditions indicate that human impacts far outweigh topographic and geologic forces on the groundwater flow system. Interference effects were also observed in wells of the nearby urban centres. Future groundwater abstraction in RNT may lead to further reduction in groundwater levels in the neighbouring Kolkata megacity and may increase the rate of transport of contaminants to the RNT aquifer.

Journal

Sustainable Water Resources ManagementSpringer Journals

Published: Mar 28, 2017

References

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