Suspending of cargo handling caused by moored ship motions is serious problem at sea berths facing to open sea area. In this paper, we focus on a tanker sea berth facing to the Pacific Ocean. And we research about the berth operation of the sea berth firstly. Secondly, we measure and analyze the wind waves and swell data at the berth. We simulate mooring ship motions under these waves and winds, then we compared with the hearing result from the berth master and the simulation result. Finally, we propose a berth operation support system for a safe berth operation.
