On Thu, 8 Jan 2004 21:05:29 UTC, "Dipper" wrote:

Hi Steve,

the lunitidal interval is :- the observed time (10:30) minus the theoretical
time (08:00) = +2.5 hours

Of course you can observe it, but then the watch looses it's value,
doesn't it..?? I mean, that's what we 'always' do: learn the tide
table near by, observe the local facts, calculate for the next
high/low - adding 6.25 or 12.5 depending on the area.

I hope this is helpful... I have to program my tidal watch whenever I am
paddling away, and the above is how I do it. works for me !

Looking at the tidal hours around The British Isles, I would expect
that to be necessary too. I was surprised by the time difference.

Cheers
--
steen
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