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As a trading fund of the Ministry of Defence (MOD), we produce a global range of charts, publications and digital services for the Royal Navy and other defence customers.
ADMIRALTY Tide Tables (ATT) format - times and heights of high and low waters, four months per page (A4 portrait)
Routine resurveys are undertaken in areas where the seabed is highly mobile.
How to propose a new survey, what data the UKHO requires for a nautical chart, and how to report safety critical information or errors in our products
The UKHO's Annual Report and Accounts for 2023 to 2024 is available to view and download
How the UK Hydrographic Office is directed and managed.
A new report reveals the significant economic and environmental benefit of seabed mapping within the UK Exclusive Economic Zone (EEZ).
UKHO Tidal Prediction Service Sample Formats
The Seabed Mapping App is now available on the ADMIRALTY Marine Data Portal
First published during the 2019 to 2022 Johnson Conservative government
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