Tidal Stream Atlas NP219 : Portsmouth Harbour and Approaches

Tidal Strean Atlas NP219 Portsmouth Harbour and Approaches

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.