CURRENT SITUATION AND SUBJECTS OF WAVE FORECAST IN SHIP OPERATION FROM VIEWPOINT OF DATA ANALYSIS

Abstract

 Numerical forecasts of weather and oceanography are in common in the field of ship operation, as the improvement of computer science these days. However, their accuracies is still unreliable in some situations. Here, nationwide questionnaire is implemented to make sure the current effectiveness of wave forecast from viewpoint of navigation safety. A couple of weather patterns are revealed as the difficulty of forecast. Moreover, two cases of failed forecast are analyzed with observed and forecasted database. These patterns are caused under the low pressure develops and moves north-easterly. Authors concludes that the backdrop has to be revealed why these weather patterns tend to misforcast in the future.