1. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Norwegian Univ. of Science and Technology, S.P. Andersens veg 5, Trondheim 7031, Norway (corresponding author). ORCID: .
2. Retired, Christian Bloms veg 2B, Jakobsli 7058, Norway.
3. Professor, Dept. of Civil and Environmental Engineering, Norwegian Univ. of Science and Technology, S.P. Andersens veg 5, Trondheim 7031, Norway.
4. Professor and Chair of the Dept. of Hydraulic and Water Resources Engineering, Technische Universität München, Arcisstr. 21, Munich 80333, Germany.
5. Associate Professor, Dept. of Civil and Environmental Engineering, Norwegian Univ. of Science and Technology, S.P. Andersens veg 5, Trondheim 7031, Norway. ORCID: