Posted by Robert Hill on March 11, 2007 at 16:00:09 from 195.92.168.170 user eclrh.
In Reply to: Re: High water full and change (was Journey back from Secret Water) posted by Bill Wallace-King on March 10, 2007 at 21:25:07:
That's very interesting. As a non-mariner (except occasionally as a passenger), I had never noticed that spring and neap tides in any one place tend to occur at about the same time, but as a person with a degree in maths, who often thinks about astronomy, I should have realised it. (Kicks self).
Another way of getting approximate tide information for anywhere on the coast used to feature in the AA (that's Automobile Association, not Alcoholics Anonymous) handbook. It would include tide tables for one location (London Bridge) for the handbook's period of validity (orinally one year, later two), and the book's atlas section would show a tidal constant against coastal places, being the average difference in time between high tide at that place and at London Bridge.