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Tidal gate calculator (Rule of twelfths)

This calculator calculates tidal gates using the rule of twelfths, estimating the height of the tide at any time, given only the time and height of high and low water. The rule is a rough approximation only and should be applied with great caution when used for navigational purposes. Officially produced tide tables should be used in preference whenever possible.
Timur2013-05-17 12:59:40
Creative Commons Attribution/Share-Alike License 3.0 (Unported)

This content is licensed under Creative Commons Attribution/Share-Alike License 3.0 (Unported). That means you may freely redistribute or modify this content under the same license conditions and must attribute the original author of this work by placing a hyperlink from your site to this work http://planetcalc.com/2449/. As well, please leave unmodified all references to the original work (if any) contained in this content.

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Tidal gate calculator (Rule of twelfths)Creative Commons Attribution/Share-Alike License 3.0 (Unported)
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