Surface water - groundwater interaction in the Salaca drainage basin using stable isotope analysis
2016
Babre, A., University of Latvia, Riga (Latvia) | Kalvans, A., University of Latvia, Riga (Latvia) | Popovs, K., University of Latvia, Riga (Latvia) | Delina, A., University of Latvia, Riga (Latvia) | Retike, I., University of Latvia, Riga (Latvia) | Bikse, J., University of Latvia, Riga (Latvia)
This paper presents first results of monthly water stable isotope monitoring programme covering the most important surface and groundwater types in the Salaca River basin. The aim is to characterise the isotopic values of different water types in the Salaca River basin, and test if their contribution can be identified in the Salaca river runoff. A monthly groundwater and surface water stable isotope monitoring programme was initiated in August 2015 covering the most of the important surface and groundwater types in the study region – groundwater and surface water in the raised bogs, free-surface groundwater including artificially drained agricultural lands, water emerging from the Lake Burtnieks as well as Burtnieks and Arulika confined aquifers. Preliminary results show that stable isotopes are useful tool to identify distinct water components and their evolution. However, it is needed to continue monitoring programme to draw significant conclusions.
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