engleski

Using mathematical modelling for analysis of groundwater communication between the left and right banks of the Sava River

The paper presents analyses of the groundwater communication between the right and left bank of the Sava River by mathematical modelling of the groundwater flow and advective transport using particle tracking approach. The groundwater flow model was developed with MODFLOW and the advective transport with MODPATH program. A conclusion drawn from the groundwater flow model was that the Sava River in the studied section acts as a hydrogeological divide during high water levels. During the low water levels the hydrological divide moves towards the right Sava bank, so there are grounds to presume that the hydraulic conditions for the groundwater communication between the right and left bank are favourable. Particle tracking showed that the particles situated along the right bank, closer to the Sava, cross to the left Sava bank during the simulation. Other particles, further away, remain on the right bank, and tend to move towards the Sava during low water levels and from the Sava during the high water levels.

surface-water/groundwater interaction; riverbanks communication; particle tracking

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