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Development of a pan-european map of hydraylic parameters using recession analysis

Fragkou Alexandra

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Summary

This dissertation presents the creation of the pan-European map of hydraulic parameters of groundwater, using the method of recession analysis.The principal hydraulic parameters to be determined is the ratio of transferability and storage parameters (T/S). In general, determining these parameters makes it possible not only to observe the hydraulic behavior of aquifers but also to estimate the reserves of groundwater.There are various methods based on data processing to determine the above hydraulic parameters of aquifers. In the present case, the use of the recession analysis method, as posited by Cooper.H and Rorabough.M, has been recommended.Initially, the use of the Matlab program was necessary to complete the dissertation. More specifically, the main recession curves and the hydraulic parameters of the area studied are calculated using well-formulated codes. To further explain, the recession index for each curve and consequently the required characteristics of the aquifer are obtained through the time series of the flow and the analysis of the data regression.Finally, the map of Europe with the points of the hydraulic parameters was constructed using ArcGIS allowing for optimal display of the findings. This fact allows the hydraulic characteristics to be accurately depicted but also to facilitate researchers to be able to use our results in the creation of new pan-European models using this hydraylic parameters.

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