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  2. Admiralty chart - Wikipedia

    en.wikipedia.org/wiki/Admiralty_chart

    All printing of Admiralty charts was carried out in England until the first World War. In 1915, the survey ship HMS Endeavour was sent to support the Gallipoli campaign, and carried printing equipment so that charts from her surveys could be rapidly made available to the fleet. In 1938 trials were made with the rotary offset process, using a ...

  3. Nautical chart - Wikipedia

    en.wikipedia.org/wiki/Nautical_chart

    Online version of Chart No.1 with "Symbols, Abbreviations and Terms" used in nautical charts; Portolan Chart of Gabriel de Vallseca, 1439; The short film "Reading Charts (April 6, 1999)" is available for free viewing and download at the Internet Archive. Nautical charts available online (Nautical Free) Online Nautical Charts Viewer

  4. Nautical publications - Wikipedia

    en.wikipedia.org/wiki/Nautical_publications

    In the UK, the Admiralty issues 76 volumes covering the world and these are used frequently by most merchant ships. [8] In the US, the United States Coast Pilots is a nine-volume American navigation publication distributed yearly by the National Ocean Service. Its purpose is to supplement nautical charts of US waters.

  5. United States Hydrographic Office - Wikipedia

    en.wikipedia.org/wiki/United_States_Hydrographic...

    The office was not envisioned as being a rival to the British Admiralty hydrographic office or the French depot of charts, but as an office that could publish charts and directions where there was sufficient information available, priced to cover the cost of paper and printing but not the cost of preparation. [4]

  6. Vertical Offshore Reference Frames - Wikipedia

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

    A main product of the VORF project was the gridded vertical correction files which deliver the capability to transfer heights and depths from one vertical reference system to another, "allowing the direct use of depth data from surveys which is referred to a WGS84 compatible datum rather than Chart Datum and thus enabling Hydrographic surveyors to survey without the need to measure tides".

  7. Notice to mariners - Wikipedia

    en.wikipedia.org/wiki/Notice_to_Mariners

    The information in the Notice to Mariners is formatted to simplify the correction of paper charts and navigational publications. The NOTMAR.gc.ca site is a free 24/7 service providing mariners with up-to-date safety advisories. It provides mariners with a quick and easy to use interface to access Notices to Mariners information.

  8. OpenSeaMap - Wikipedia

    en.wikipedia.org/wiki/OpenSeaMap

    OpenSeaMap is a software project collecting freely usable nautical information and geospatial data to create a worldwide nautical chart. This chart is available on the OpenSeaMap website, and can also be downloaded for use as an electronic chart for offline applications. [1] The project is part of OpenStreetMap. OpenSeaMap is part of the ...

  9. Sailing Directions - Wikipedia

    en.wikipedia.org/wiki/Sailing_Directions

    The oldest sailing directions, dating back to the middle ages, descended directly from the Greek and Roman periplii: in classical times, in the absence of real nautical charts, navigation was carried out using books that described the coast, not necessarily intended for navigation, but more often consisting of reports of previous voyages, or celebrations of the deeds of leaders or rulers.

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