Tides and their Causes Home Page
Proudman Oceanographic Laboratory on tides - the explanations are really clear.
The Yachtsman's Manual of Tides: The Theory and Practice of Navigating Tidal Waters - the best book for yachtsmen
| CD = Chart Datum LAT = Lowest Astronomical Tide HAT = Highest Astronomical Tide |
MHWS = Mean High Water Springs MLWS = Mean Low Water Springs MHWN = Mean High Water Neaps MLWN = Mean Low Water Neaps |
Tide Range = High Water ht – Low Water ht MHWS – MLWS = Mean Spring Range MHWN – MLWN = Mean Neap Range |
| Depth = Charted Depth + Height of Tide OR Height of Tide – Drying Height | ||
For more on Vertical Clearances see here Moire light and HAT Vertical clearances
posted 5th May 2011