Numerical modelling of groundwater system in the East Georgia’s lowland
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In order to assessment water pathway and origin, a numerical model of groundwater was elaborated for East Georgia’s lowland - Alazani and Shiraki catchments. The model was calibrated in transient transport mode to tritium concentration measured in boreholes and springs located in East Georgia areas. Tritium was assigned as a single mobile species, not reacting with chemical elements and concentrated in water, what allowed determining the residence time of groundwater flow. The model estimated groundwater flow directions and velocities between recharge and discharge areas, as well as groundwater age for Alazani and Shiraki catchments.
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