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Old 22-07-2013, 07:40   #16
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Re: Panama Tides

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Originally Posted by Reefmagnet View Post
Factors such as the contour of the seabed and geography of the shoreline have a major affect on the height and timing of tides. In simplistic terms it's similar to how waves behave e.g. summing and subtraction and increased height in shallow water. I do recall reading that the tide is essentially a wave that circles the Earth at 800 km/ph so this if no surprise.
Tidal Resonance.
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Old 24-07-2013, 18:03   #17
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Re: Panama Tides

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Originally Posted by belizesailor View Post
These days usually software...or a very long stick. : )
I guess so.

I was just wondering because I was thinking of all the "don't rely on electricity" folks and what they have.
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Old 24-07-2013, 18:05   #18
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Re: Panama Tides

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Originally Posted by AiniA View Post
We had an interesting experience at the northern tip of Queensland where getting the tides and currents right really matters. Between three boats we had four different electronic tide/current predictors (Garmin, Navionics, etc) along with printed tables from the Queensland government and they were different by hours. The most accurate was the printed book.

Which I am going to equate as "local knowledge".
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