Classification of water hazard phenomena and processes (hazards) in coastal and oceanic domains. A point of view.

After a brief characterization of the two components of coastal and oceanic risk, the criteria and objectives pursued in the oceanographic hazard classification are dealt with. In this respect, the criteria used in the classification of water risk phenomena and processes in coastal areas (genetic, spatial, temporal, way of manifestation, nature of phenomena and processes, degree of impact, effects and their perception). Based on a number of criteria (genetic, spatial, temporal and way of manifestation), the risk phenomena and processes in the two domains were classified into dynamic (from oceanic liquid water), mechanical (abrasion and aggradation) and interference (physical, chemical and mixed)