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Departments, agencies and public bodies
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An overview of the UKHO Archive, accessing our archive and ordering copies of archive material.
Our flexible service can provide tidal information tailored to your specific requirements.
As a Public Authority, the UKHO makes relevant data sets available in compliance with the ‘Infrastructure for Spatial Information in Europe’ (INSPIRE) initiative.
We have a team of experts who specialise in technical aspects of maritime baselines, limits, zones and boundaries.
ADMIRALTY Tide Tables (ATT) format - times and heights of high and low waters, four months per page (A4 portrait)
The systematic survey of the UK’s coastal waters
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 Archive Information Asset Register (IAR) contributes to the government-wide IAR, available through the Office of Public Sector Information.
Times and heights of high and low waters, split into morning and afternoon, one month per page, without a table drawn around the data (A4 portrait)
This is a scanned version of a catalogue of charts and nautical publications produced by the Hydrographic Office available for purchase by the public in 1825
Guidance on how to report a security vulnerability on any UK Hydrographic Office service or system, including Admiralty websites or other associated services.
Times and heights of high and low waters
Times and heights of high water only, split into morning and afternoon, one month per page, with a table drawn around the data (A4 portrait)
Times of high water for each day of the year, contained on one page (A4 portrait)
Times and heights of high and low waters, split into morning and afternoon, one month per page, with a table drawn around the data (A4 portrait)
Hourly heights, two months per page (A4 portrait)
High water-only format, split into morning and afternoon, four months per page (A4 landscape)
Times and heights of high waters only
10 minute heights
This is a scanned version of a catalogue of charts and nautical publications produced by the Hydrographic Office available for use by the Royal Navy (not the public) in 1945 covering Europe.
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