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Author (up) Siarkos, I.; Latinopoulos, P.
Title Modeling seawater intrusion in overexploited aquifers in the absence of sufficient data: application to the aquifer of Nea Moudania, northern Greece Type Journal Article
Year 2016 Publication Hydrogeology Journal Abbreviated Journal Hydrogeology J.
Volume 24 Issue Pages 2123–2141
Keywords Groundwater flow, Seawater intrusion, Numerical modeling, Greece, Sensitivity analysis
Abstract In many coastal areas, overexploitation of groundwater resources has led both to the quantitative degradation of local aquifers and the deterioration of groundwater quality due to seawater intrusion. To investigate the behavior of coastal aquifers under these conditions, numerical modeling is usually implemented; however, the proper implementation of numerical models requires a large amount of data, which are often not available due to the time-consuming and costly process of obtaining them. In the present study, the investigation of the behavior of coastal aquifers under the lack of adequate data is

attempted by developing a methodological framework consisting of a series of numerical simulations: a steady-state, a false-transient and a transient simulation. The sequence and the connection between these simulations constitute the backbone of the whole procedure aimed at adjusting the various

model parameters, as well as obtaining the initial conditions for the transient simulation. The validity of the proposed methodology is tested through evaluation of the model calibration procedure and the estimation of the simulation errors (mean error, mean absolute error, root mean square error, mean relative error) using the case of Nea Moudania basin, northern Greece. Furthermore, a sensitivity analysis is performed in order to minimize the error estimates and thus to maximize the reliability of the models. The results of the whole procedure affirm the proper implementation of the developed methodology under specific conditions and assumptions due to the lack of sufficient data, while they give a clear picture of the aquifer’s quantitative and qualitative status.
Address Ilias Siarkos: isiarkos@civil.auth.gr; Pericles Latinopoulos latin@civil.auth.gr
Corporate Author School of Civil Engineering, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece Thesis
Publisher IAH Place of Publication Editor Springer
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1431-2174 ISBN Medium
Area Hydrogeology; groundwater modelling, sea water intrusion Expedition Conference
Notes Approved yes
Call Number MGRE @ redha.menani @ Serial 52
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