Abstract: Risk analysis of wave events is an important means of ensuring the safety of oceanographic surveys. Previous wave risk studies mainly focused on coastal ocean engineering, essentially calculating the return period using extreme-value statistics. This method is not applicable to oceanographic surveys because of wave adaptability differences. This study proposes a new model to analyze wave event risks for oceanographic surveys. The model comprehensively considered the specific vulnerabilities of oceanographic survey activities, as well as wave event hazards. An index system was designed to hierarchize the hazards and an analytical method was established to identify vulnerabilities of oceanographic surveys. Wave risk level patterns were drawn from the model results. The method was evaluated in the Southern Ocean. Results showed that the proposed model effectively assessed the risk of wave events and provided crucial information for the design of oceanographic survey stations and the selection of operation periods and ship routes

Key words: ocean wave, risk analysis, oceanographic survey, Antarctica, Cosmonaut Sea