Campanola CAN18 Instruction Manual page 27

Lunar age display feature
• You can find amplitude of tide from the lunar age. Generally, it is a spring
tide and tidal range is large around new moon (lunar age: 0) or full moon
(lunar age: approx. 15); around half moon (lunar age: approx. 7 or 22) it is a
neap tide and tidal range is small.
• You can guess rough ebb and flow from the lunar age dial. The rotation cycle
of the lunar age dial is approximately twice of the average cycle of spring and
neap tide. It is almost fixed that the direction which the lunar age pointer
on the lunar age dial points to at a certain place at low tide in the day of new
moon or full moon. It is useful for guessing ebb and flow to remember the
direction and its opposite that the lunar age pointer on the lunar age dial
points to at low tide in the day of new moon or full moon in a place at which
you want to know ebb and flow. However, guessing based on that may rather
be different from actual time of low and high tide in the period around neap
tide.
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