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Conceptual Model and Hydrochemical Characteristics of an Intensively Exploited Mediterranean Aquifer

  • V. Pisinaras
  • C. Petalas
  • V.A. Tsihrintzis
Part of the Environmental Earth Sciences book series (EESCI)

Abstract

The conceptual model and the hydrochemical characteristics of the aquifer system of Vistonis plain in Northeastern Greece are presented. The study area is a rural region whose irrigation needs are met by the semi-confined aquifer system. Studies were undertaken in years 2003-2005 which utilized geological data, pumping test data and groundwater level measurements, in order to investigate the hydrogeological conditions of the semi-confined aquifer system of the study area. Based on this data a FLOWPATH II simulation was developed. The hydrochemical characteristics of the aquifer system of the study area were analyzed using basic statistics, Principal Component Analysis (PCA) and the expanded Durov diagram. The hydrogeological characteristics of the aquifer system vary significantly across the study area and are largely the result of contrasts in depositional environments. FLOWPATH II showed a clear tendency for groundwater to flow from a NW to a SE or E direction. The groundwater chemical analyses results showed that, the aquifer is locally affected by a geothermal field. PCA rendered seven significant PCs (eigenvalue > 1), explaining 76.8% of the total variance of the dataset. PCA revealed factors influenced by anthropogenic activities, such as fertilizer application and waste disposal, and also naturally induced hydrochemical processes.

Keywords

Groundwater Quality Geothermal Field Groundwater Flow Model Hydrochemical Characteristic Aquifer Thickness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • V. Pisinaras
    • 1
  • C. Petalas
    • 1
  • V.A. Tsihrintzis
    • 1
  1. 1.Laboratory of Ecological Engineering and Technology, Department of Environmental EngineeringDemocritus University of ThraceXanthiGreece

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