1. Institute of Environmental Engineering, Wrocław University of Environmental and Life Sciences, pl. Grunwaldzki 24, 50-363 Wrocław, Poland
2. State Water Holding Polish Waters-Regional Water Management Authority in Wrocław, Norwida 34, 50-950 Wrocław, Poland
3. Institute of Meteorology and Water Management, National Research Institute in Warsaw, Podleśna 61, 01-673 Warszawa, Poland