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The UKHO has appointed Vanessa Blake, who has been Interim Chief Executive since May 2024, as its Chief Executive on a permanent basis.
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.
The UK Hydrographic Office (UKHO) is a world-leading centre for hydrography, delivering data and expertise to support safe, secure and thriving oceans.
The UKHO's Annual Report and Accounts for 2023 to 2024 is available to view and download
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
How the UK Hydrographic Office is directed and managed.
Record copies of published Admiralty charts produced since 1800 arranged by chart number
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