Final answer:
The West Cardinal Mark signifies safe water to the west of the buoy, with a specific light pattern and top mark shape indicating its purpose, helping mariners navigate safely.
Step-by-step explanation:
The West Cardinal Mark indicates safe water to the west of the buoy. These navigational markers are used by mariners to identify the position of safe water relative to the cardinal points (north, east, south, west). The lights on a West Cardinal Mark usually flash in groups of nine every ten seconds, represented as Fl (9) 10s. The top marks consist of two black cones, one placed above the other, apexes pointing toward each other (like an hourglass shape).
In terms of identification, the distinctive ID Types for a West Cardinal Mark are usually letters or could also be regional identifiers depending on local maritime guidelines. Mariners understand that when they see a West Cardinal Mark, they should pass to the west of the mark to ensure they remain in safe water and avoid potential dangers or obstructions to navigation.