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An overview of the UKHO Archive, accessing our archive and ordering copies of archive material.
As a Public Authority, the UKHO makes relevant data sets available in compliance with the 鈥業nfrastructure for Spatial Information in Europe鈥� (INSPIRE) initiative.
The systematic survey of the UK鈥檚 coastal waters
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)
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.
Find out about MCA鈥檚 bathymetric data collection programme, how to share data with MCA, and guidance for offshore developers.
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 1919.
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)
This treaty was presented to Parliament in February 2017.
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 1839
Times and heights of high and low waters as in Format 12, but accompanied by interval heights (any time interval from a minimum of 1 minute to a maximum of 120 minutes)
Times and heights of high and low waters 鈥� alternative structure to Format 8
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)
High water-only format, split into morning and afternoon, four months per page (A4 landscape)
Hourly heights, two months per page (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, without a table drawn around the data (A4 portrait)
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