1. Ph.D. Candidate and Researcher, Water Resources and Environmental Engineering Research Group, Univ. of Oulu, P.O. Box 4300, 90014 Oulu, Finland (corresponding author).
2. Ph.D. Candidate and Researcher, Water Resources and Environmental Engineering Research Group, Univ. of Oulu, P.O. Box 4300, 90014 Oulu, Finland.
3. Researcher, Water Resources and Environmental Engineering Research Group, Univ. of Oulu, P.O. Box 4300, 90014 Oulu, Finland.
4. Professor and Laboratory Director, Water Resources and Environmental Engineering Research Group, Univ. of Oulu, P.O. Box 4300, 90014 Oulu, Finland.