NP257 Admiralty Tidal Stream Atlas Approaches to Portland, England, 3th Edition 1973

• Show in diagrammatic form, the major tidal streams for selected waters of NW Europe. • Show at a glance both direction and rate of tidal streams at hourly intervals by careful and accurate use of graded arrows. • Display mean neap and spring tidal rates in tenths of a knot. • Include a diagram to assist you to calculate the tidal stream rate for your required date.

NP257

Publication Details

• Number NP257
• Title Approaches to Portland
• Sub Title n/a
• Type Tidal Publications
• SubType Admiralty Tidal Stream Atlases
• Edition No 3
• Pub Year 1973