MontyMariner
Well-known member
See 2024 Tide Tables
2024 Tide Tables
- Thread starter MontyMariner
- Start date
colhel
Well-known member
Thanks Nigel 
jtfield
New member
Thank you - that's very useful! Can I ask - what is the source of your tide table data? Just curious, but is it calculated by you from moon phase or from an almanac - apologies if that's a stupid question, or if already mentioned on your site (I did have a look)
MontyMariner
Well-known member
I use the PC 'app' from ** WXTIDE32.COM **
The download points you to:
WXTide32 - Tides and Currents for Win9x/NT
I reformat the data to my likeing and turn it into a .png picture format.
Another useful source is marees-dans-le-monde - Marées dans le Monde
MontyMariner
Well-known member
Dover is now 2024.
I have also reformatted the Cherbourg tables to make the Time Zone clearer (hopefully)!
I have also reformatted the Cherbourg tables to make the Time Zone clearer (hopefully)!
jtfield
New member
Thank you - that's very interesting. Spent some time reading WXTide FAQs and also 'XTide' which is the programme on which it was based. So they get the 'shape' of the local tidal curve from observations at a given time, then extrapolate a harmonic wave from that (it's much more complicated though).
According to WXTide, before 2001 tidal observations data were generally free and public domain, worldwide; then the UKHO asserted ownership of UK data and demanded a license fee - so today these two (free) programmes only ship US data.
The US seem enlightened about this - from WXTide: "That data was gathered using public (taxpayer) funds so no copyright is or can be attached to NOS or NOA tidal data"
MontyMariner
Well-known member
Unless you kept a copy of the harmonic data file from pre 2001
