What is a Tide Clock?
Several centuries ago, tide indicators were developed with mathematical calculations based on lunar days. What is a lunar day? It corresponds to the time that the Moon takes to go around the Earth, 24h 50mn. We refer to lunar days and not solar days because the Moon plays an important role in tide formation. It is mostly the gravitational forces of the Moon onto the Earth which create strong tides. Scientists realized that during a lunar day, two high tides as well as two low tides get formed. Basically, a high tide and a low tide occur in 12h 25mn.
During a lunar month (29 days), the tide clock is relatively precise according to the true state of the tide. However, 12h 25mn being the average time between two high tides or low tides, it can happen that some days the tide clock undergoes slight intervals during a tide cycle. The clock automatically readjusts in the following cycles; therefore, these intervals are just temporary.
How Does a Tide Clock Work?
This kind of clock does not show the time but the tide, and more precisely the time remaining before low tide and high tide. A tide clock is a useful device which allows you to know if the tide is going down or up at your favorite beach or boating location.
It is important to note that these clocks do not function exactly like usual clocks. Tide indicators do not go around the clock in 24h, like a typical clock, but in 12 hours 25 minutes which corresponds to the average time between two high tides and two low tides, in zones where tides are mostly regular.
Once your tide indicator is ready, follow the position of the clock hand to know the state of the tide.
What Are The Benefits of Knowing the Tide?
Many coastal activities are influenced by the tides. Boating, fishing, swimming, kayaking, paddle-boarding, and surfing are all affected by high and low tides during a day. Knowing when those tides are can make these activities more enjoyable.
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