ADMIRALTY TotalTide (ATT) provides bridge crews with fast, accurate tidal height and tidal stream predictions for more than 7,000 ports and 3,000 tidal streams worldwide.
Key features of ATT include:
Accurate tidal predictions, reducing the risk of human error and providing bridge crews with an easy means of viewing both under-keel and safe overhead clearances
Approved for use by the Flag States of over 80% of ships trading internationally, with certification to aid inspections
Here to help
Once you’ve chosen ATT we can offer you guidance to help you get the most from the service. Support items include installation guides and YouTube tutorials, with further support available from chart agents and our in-house customer service team.
Comprehensive coverage of tidal information
ADMIRALTY TotalTide (ATT) provides bridge crews with fast, accurate tidal height and tidal stream predictions for more than 7,000 ports and 3,000 tidal streams worldwide. This global coverage, which is split across 10 areas, enables users to take advantage of the tides whilst reducing risk to crew, cargo and ships.
Instant tidal predictions and clearance calculations
Enabling quicker and more informed decisions, ATT allows users to instantly calculate tidal heights for multiple ports during a period of seven consecutive days. Crews can also use the software to calculate and view safe clearances based on a ship's draught, masthead and under-keel clearance allowance.
This information, which is quality assured by maritime experts at the UKHO, is presented in user-friendly graphical forms to help bridge crews understand predictions at times of peak-workload and pressure.
Ongoing compliance with SOLAS requirements
ATT is widely accepted as meeting SOLAS carriage requirements and is approved for use by the Flag States of over 80% of ships trading internationally; meaning ongoing safety and compliance for your ships, cargo and crew.