1. Engineer, Dept. of Marine Technology, Multiconsult Norge AS, Kvaløyvegen 156, Tromsø 9013, Norway (corresponding author). ORCID: .
2. Professor, Dept. of Civil Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180.
3. Professor, Faculty of Sciences and Technology, Norwegian Univ. of Life Sciences, P.O. Box 5000, Ås N-1432, Norway.