Tides, Heights and Streams
Causes of Tides
Variation of Tidal Heights
Tidal Terms
Rule of Twelfths
Example
Using the Tidal Curves
The Tidal Curve
Height at a Given Time
Times at Given Height
Secondary Ports
Secondary Port Information
Time Limits
Graphical Interpolation
Arithmetical Interpolation
Height Interpolation
Height Calculation
Tidal Anomalies
Effects of Anomaly
Tidal Streams
Sources of Information
Interpolation
Estimated Position
Leeway
Course to Steer
Speed Made Good and ETA
Using the Net Tide
Author: Colin Walls
E-mail: colin@murorum.demon.co.uk
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