NP209 - Tidal Stream Atlas - Orkney and Shetland Islands
2010
Admiralty Tidal Stream Atlases display. in diagrammatic form. the major tidal streams for selected waters of north-western Europe. including direction and rate at hourly intervals. Graded arrows illustrate Mean. Neap and Spring tidal rates in tenths of a knot. There is also a diagram to help you calculate the tidal stream rate for a given date.
