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Tidal heights and the rule of twelfths

by Simon Jollands | Communications, Crewing skills, Navigation, Preparation

In our previous article we looked at tidal curves and how we can use them to find the time of a specific height of tide. Following on from this we now take a look at how we calculate a height of tide for a specific time. This is not a complex calculation but it helps...

Understanding tide tables and tidal curves

by Simon Jollands | Communications, Crewing skills, Navigation, Preparation

No two coastal places have exactly the same tidal pattern. There are many factors that influence this, from the shape of the coastline, the funnelling effect of channels and estuaries, the depth of the sea and the proximity of oceans. The times and heights of tides...

Tidal terms and definitions

by Simon Jollands | Communications, Crewing skills, Navigation, Preparation

In a previous post, we looked at some of the basic principles involved with understanding tides, including what causes their rise and fall, the resulting tidal streams and the tidal range that varies according to coastal topography. For those who are learning or...

Tidal heights and the rule of twelfths

Understanding tide tables and tidal curves

Tidal terms and definitions

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