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Roberto
regular

Reged: 20/07/2001
Posts: 1171
Loc: miquélic - Lorient

Re: Tidal streams - Computation of rates.....

16/05/2008 14:26

Should you want to make your own you may base yourself upon this graph

it is based on the French system of "coéfficients" (a number proportional to tidal amplitude, 45 being neaps and 95 being springs) but you may disregard this, just replace "VE" with springs and "ME" with neaps.
In this example the tidal stream arrow read 3518, mark 3.5 knots along the VE line, mark 1.8kt along the ME line, connect the two.
Calculate the ratio between your relevant amplitude and the Spring/neaps ones, "coefficients" make this easier, in the example it was 72, then read the tidal stream speed.

Post Extras

Entire topic
Subject	Posted by	Posted on
Tidal streams - Computation of rates.....	dukes4monny	15/05/2008 22:14
Re: Tidal streams - Computation of rates.....	wotayottie	16/05/2008 17:36
Re: Tidal streams - Computation of rates.....	Roberto	16/05/2008 14:26
Re: Tidal streams - Computation of rates.....	Sailfree	16/05/2008 19:18
Re: Tidal streams - Computation of rates.....	lw395	16/05/2008 17:45
Re: Tidal streams - Computation of rates.....	Roberto	16/05/2008 18:06
Re: Tidal streams - Computation of rates.....	Danny	16/05/2008 13:24
Re: Tidal streams - Computation of rates.....	CBT	16/05/2008 08:08
Re: Tidal streams - Computation of rates.....	dukes4monny	16/05/2008 08:45
Re: Tidal streams - Computation of rates.....	sticky	16/05/2008 22:27
Re: Tidal streams - Computation of rates.....	Danny	23/05/2008 20:24
Re: Tidal streams - Computation of rates.....	Sailfree	16/05/2008 13:50
Re: Tidal streams - Computation of rates.....	Morgana	16/05/2008 08:58
Re: Tidal streams - Computation of rates.....	AliM	16/05/2008 09:36
Re: Tidal streams - Computation of rates.....	Searush	15/05/2008 22:54
Re: Tidal streams - Computation of rates.....	SAWDOC	16/05/2008 00:07
Re: Tidal streams - Computation of rates.....	roly_voya	16/05/2008 03:04
Re: Tidal streams - Computation of rates.....	dukes4monny	15/05/2008 23:33
Re: Tidal streams - Computation of rates.....	Damo	15/05/2008 23:58
Re: Tidal streams - Computation of rates.....	VicS	15/05/2008 23:48
Re: Tidal streams - Computation of rates.....	Danny	15/05/2008 22:28

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