Page 115 - Tallinn University

HARIDUSTEADUSED Tallinna Ülikooli üliõpilaste 2015/2016. õppeaasta PARIMAD TEADUSTÖÖD / Artiklite kogumik
cOncluSiOnS
– Direct hydraulic link exists between the recharge and discharge area.
– Despite of the relatively moderate hydraulic gradient (0.003-0.004) groundwater travels rapidly (vmax=500-673 m/h) through the densely fractured karst system, where well-developed conduits serve as preferential ow paths.
– During low to medium ow conditions, groundwater preferably discharges in the veetõusme perennial spring group, whereas the ww spring group remains static despite being hydraulically linked to the system.
– in order to initiate the over ow in the ww, Q=3.97 m3/s and wl=59.23 m asl have to be reached in the recharge area.
– although the operation of the karst system primarily depends on the hydrological conditions in the Tuhala river, a signi cant interaction with the adjacent aquifer is evident in many aspects. in order to understand the role of the Tka in the context of hydrodynamics of the nabala-Tuhala region, it is of great importance to study the interaction with the adjacent aquifer in the future.
referenceS
Ford, D., Williams, P. (2007). Karst Hydrogeology and Geomorphology. John Wiley & Sons Ltd, Chichester.
Ravbar, N. (2013). Variability of groundwater ow and transport processes in karst under di erent hydrologic conditions. − Acta Carsologica, 42, 2-3, 327−338.
Smart, C., S. R. H. Worthington. (2004). Springs. − Encyclopedia of Cave and Karst Science, Gunn, J. (Ed). London: Fitzroy Dearborn, 1495−1504.
Stevanović, Z. (2015). Characterization of Karst Aquifer. − Karst Aquifers – Characterization and Engineering, Stevanović, Z. (Ed). Springer International Publishing Switzerland, Cham, 47−126.
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