1. Department of Hydrology and Water Management , Adam Mickiewicz University , B. Krygowskiego 10 , Poznań , Poland .
2. Department of Land Improvement, Environmental Development and Spatial Management , Poznań University of Life Sciences , Piątkowska 94E , Poznań , Poland .
3. College of Hydraulic Science and Engineering , Yangzhou University , China .
4. Institute of Meteorology and Water Management – National Research Institute , Podleśna 61 , Warszawa , Poland .