Dr. Nikolay Valchev, Assoc. Prof. at the Institute of Oceanology - Bulgarian Academy of Sciences. He is PhD in Physical Oceanography (obtained in 2006 at the Institute of Oceanology) and MSc in Ecology and Environmental protection (obtained in 1997 at the Naval Academy). His research interests encompass wave modelling and analysis, wave energy, statistical analysis of environmental time series, coastal processes, coastal risk assessment, coastal restoration, climate variability, Nature-based Solutions, climate change adaptation.