TIDAL CURRENT INFORMATION DISPLAY APPARATUS AND METHOD

A tidal current display data generation apparatus for a movable body, for displaying tidal current information on a display screen, includes a tidal current information receiving terminal configured to receive tidal current information including a position of a tidal current on a chart of a region including the movable body, and a plurality of predicted tidal current directions of the tidal current at the position at a corresponding plurality of time instants, and a tidal current display data generation terminal configured to generate an indicator including a time scale determined according to the plurality of time instants, determine position of each predicted tidal current direction on the time scale at respective time instant, generate a plurality of symbols for respective positions on the time scale, each symbol indicating respective predicted tidal current direction at respective time instant, and output the indicator including the plurality of symbols to the display screen.