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  2. United Kingdom Hydrographic Office - Wikipedia

    en.wikipedia.org/wiki/United_Kingdom...

    The United Kingdom Hydrographic Office (UKHO) is the UK's agency for providing hydrographic and marine geospatial data to mariners and maritime organisations across the world. The UKHO is a trading fund of the Ministry of Defence (MoD) and is located in Taunton , Somerset , with a workforce of approximately 900 staff.

  3. Admiralty chart - Wikipedia

    en.wikipedia.org/wiki/Admiralty_chart

    The British admiralty charts are compiled, drawn and issued by the Hydrographic Office. This department of the Admiralty was established under Earl Spencer by an order in council in 1795, consisting of the Hydrographer, Alexander Dalrymple, one assistant and a draughtsman. The initial remit was to organise the charts and information in the ...

  4. Hydrographic office - Wikipedia

    en.wikipedia.org/wiki/Hydrographic_office

    The Hellenic Navy Hydrographic Service (HNHS, Greek: Υδρογραφική Υπηρεσία Πολεμικού Ναυτικού), an independent service of the Hellenic Navy General Staff, is responsible for hydrographic surveying and production and sale of charts. The first naval hydrographic office was created in 1905 and its first mission ...

  5. Nautical publications - Wikipedia

    en.wikipedia.org/wiki/Nautical_publications

    In the UK, the United Kingdom Hydrographic Office, the Witherby Publishing Group and the Nautical Institute provide numerous navigational publications, including charts, publications on how to navigate and passage planning publications. [1] [2] In the US, publications are issued by the US government and US Coast Guard.

  6. Vertical Offshore Reference Frames - Wikipedia

    en.wikipedia.org/wiki/Vertical_Offshore...

    Separation between MSL and LAT for the UK and Eire Vertical Offshore Reference Frame (VORF 2008) Vertical Offshore Reference Frames (VORF) is a set of high resolution surface models, published and maintained by the UK Hydrographic Office, which together define a vertical datum for hydrographic surveying and charting in the United Kingdom and Ireland.

  7. Nautical chart - Wikipedia

    en.wikipedia.org/wiki/Nautical_chart

    The chart datum varies according to the standard used by each national Hydrographic Office. In general, the trend is towards using lowest astronomical tide (LAT), the lowest tide predicted in the full tidal cycle, but in non-tidal areas and some tidal areas Mean Sea Level (MSL) is used.

  8. Notice to mariners - Wikipedia

    en.wikipedia.org/wiki/Notice_to_Mariners

    Over 60 countries which produce nautical charts also produce a notice to mariners. About one third of these are weekly, another third are bi-monthly or monthly, and the rest irregularly issued according to need. [citation needed] For example, the United Kingdom Hydrographic Office issues weekly updates. [4] [when?]

  9. Hydrographer of the Navy - Wikipedia

    en.wikipedia.org/wiki/Hydrographer_of_the_Navy

    From 1795 until 2001, the post was responsible for the production of charts for the Royal Navy, and around this post grew the United Kingdom Hydrographic Office (UKHO). In 2001, the post was disassociated from UKHO, and the Hydrographer of the Navy is now a title bestowed upon the current captain—hydrography and meteorology—on the staff of ...