The Admiralty Tidal Stream Atlas: Dover Strait (NP233), 3rd Edition, published in 1995, is an essential navigational resource crafted by the United Kingdom Hydrographic Office. This atlas presents a detailed overview of the significant tidal streams found in the waters of Northwest Europe.
Designed for sailors and maritime professionals, it effectively illustrates the direction and rate of tidal streams at hourly intervals using an accurate system of graded arrows. This clarity helps navigators make informed decisions based on accurate tidal information.
Key features of the Admiralty Tidal Stream Atlas include:
- Comprehensive diagrammatic representation of major tidal streams in the Dover Strait, making it easier to visualize tidal movements.
- Mean neap and spring tidal rates presented in tenths of a knot, providing precise data to ensure safe navigation.
Additionally, this atlas includes a handy diagram that assists in calculating the tidal stream rate for your required dates, further enhancing its usability.

Whether you are preparing for a short passage or extensive voyages in the Dover Strait, this tidal stream atlas is an invaluable tool. It allows you to anticipate tidal movements and adapt your navigation strategies accordingly. Equip yourself with the Admiralty Tidal Stream Atlas to navigate these crucial waters with confidence.