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01-07-2020 | Original Article | Issue 14/2020

Environmental Earth Sciences 14/2020

Free and open-source GIS-integrated hydrogeological analysis tool: an application for coastal aquifer systems

Journal:
Environmental Earth Sciences > Issue 14/2020
Authors:
M. Perdikaki, R. Criollo Manjarrez, C. Pouliaris, R. Rossetto, A. Kallioras
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Abstract

This paper demonstrates the application of a recently developed free and open-source GIS-integrated hydrochemical–hydrogeological analysis tool (named AkvaGIS) for the management and interpretation of hydrogeological data with respect to a coastal aquifer system. The aforementioned tool is composed of a geospatial database implemented in Spatialite, complemented with a set of developed tools for the analysis, interpretation, and visualization of groundwater quality parameters and hydrogeological data. This ICT tool is part of the FREEWAT platform, an open-source and public domain GIS-integrated modelling environment based on groundwater flow and solute transport numerical models, including a water management and planning module. The case study that was used to perform a demonstration of the aforementioned tool, is a coastal aquifer system in Greece, suffering from both seawater intrusion and nitrate contamination as a result of extensive agricultural activities. It involves a complex hydrogeological environment incorporating karst and granular aquifer layers, subjected to different exploitation conditions. AkvaGIS was proved a useful ICT tool for the analysis and interpretation of the collected hydrogeological/hydrochemical data and results, which may be considered as a valuable tool for analyzing different aspects of aquifer systems.

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