Services and information
Tides and currents in Canada
About tides and currents, including their causes and how we use their data.
Notices and important messages
Notices on digital services and water level gauges.
Definitions
List of tidal terms and expressions, and acronym meanings.
Vertical datum chart references
About the vertical datum reference on navigational charts.
Tidal phenomena
Tides and tidal streams, shallow water effects and non-tidal influences.
History of tidal measurements
Background on tidal, current and water level surveying.