Tidal atlas
In a tidal atlas (also known as tidal atlas), the directions and strength of the typical currents in a sea area within a tidal course are represented by twelve maps divided every hour. The times within the individual hourly maps are based on the high and low water values of the reference locations in the sea area. The directions and strength of the currents are represented by arrows, which indicate the current in knots at spring tide . If two numbers are given, the higher number represents the spring tide and the lower the nip tide .
Since the high and low water values are different in every tide, the tide atlas does not provide any absolute values, but only basic values and proportionalities. The tidal or tide atlases are published by specialist nautical institutes such as the Federal Maritime and Hydrographic Agency (BSH) or the United Kingdom Hydrographic Office (UHKO).
See also
literature
- Kemp, Peter (Ed.): The Oxford Companion to Ships and the Sea . 1st edition. Oxford University Press, Oxford 1976, ISBN 0-19-211553-7 .