Tide Data

The tidal predictions used to make our tide posters are generated using the AVISO+ Products FES2022 global tide model. The model implements a "Finite Element Solution," a numerical method used for solving partial differential equations that describes the behavior of tides in the oceans. It incorporates factors such as gravitational forces, bathymetry, and oceanographic parameters to provide accurate predictions.

The model is crucial for navigation, climate studies, coastal management, and scientific research, offering valuable insights into tidal variations and sea level changes. Due to the nature of the FES model, our tidal predictions around rivers can become less accurate.

Tide elevation predicitons are relative to Lowest Astronomical Tide (LAT) and therefore may differ from other tidal predictions services (such as the Admiralty) and thus, should not be used for navigational purposes.