Admiralty NP159 tidal predictions

[Ningaloo]

Does anyone know if this Admiralty HO booklet which explains the mechanism for calculating tides from the harmonic constants, is still available?

Alternatively can anyone sell or lend me a copy?

Thanks,

Stuart eastland

 

[Guest]

can't recall offhand where tha calculation formulae are these days

Kelvin Hughes publication website site as below

www.bookharbour.com

has the following Title: NP160 Tidal
Harmonic Constants [European Waters]
Author: UK Hydrographic Office

otherwise you may fing harmonic constant calculation methods at the front of each of the Tide tables books

Title: NP201-02 Tide Tables Vol.1 United Kingdom & Ireland [including European Channel Ports]
Author: UK Hydrographic Office