Optimal Management of an Overexploited Aquifer under Climate Change: The Lake Karla Case

This paper presents a study for finding the optimal management plan of an overexploited aquifer under global climate change. The study area is the aquifer of the basin of Lake Karla, located in the eastern part of Thessaly in Greece. An optimization method has been used to evaluate the optimum volum...

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Bibliographic Details
Published in:Water resources management 2013-04, Vol.27 (6), p.1635-1649
Main Authors: Sidiropoulos, P., Mylopoulos, N., Loukas, A.
Format: Article
Language:English
Subjects:
Aquifers
Atmospheric Sciences
Civil Engineering
Climate change
Climate models
Earth and Environmental Science
Earth Sciences
Earth, ocean, space
Environment
Environmental impact
Exact sciences and technology
General circulation models
Geotechnical Engineering & Applied Earth Sciences
Global climate
Groundwater
Groundwater recharge
Groundwater reservoirs
Hydrogeology
Hydrology
Hydrology. Hydrogeology
Hydrology/Water Resources
Irrigation
Irrigation wells
Lakes
Optimization
Precipitation
Reservoir operation
Runoff
Simulation
Studies
Water resources
Water resources management
Water supply engineering
Water table
Water table rise
Watersheds
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Summary:This paper presents a study for finding the optimal management plan of an overexploited aquifer under global climate change. The study area is the aquifer of the basin of Lake Karla, located in the eastern part of Thessaly in Greece. An optimization method has been used to evaluate the optimum volume of water that can be extracted from the aquifer and the optimum position of the wells with the objective of water table rise to a desirable sustainable level, taking into consideration the climate change forcing. The modelling system consists of a series of interlinked models: a hydrological, a lake-aquifer, a reservoir operation, a groundwater, and an optimization model. The climate change forcing on precipitation and temperature has been evaluated using the outputs of Canadian Centre for Climate Model Analysis General Circulation Model (CGCMa2) and a hybrid downscaling method which combines a multiple regression (MLR) model and a timeseries model for two socioeconomic emissions scenarios. The results of this study show that climate change plays an important role, as it affects the optimum volume of the extracted groundwater and the position of the irrigation wells.
ISSN:0920-4741
1573-1650
DOI:10.1007/s11269-012-0083-4