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  2. Nautical chart - Wikipedia

    en.wikipedia.org/wiki/Nautical_chart

    The Medieval and Early Modern Nautical Chart: Birth, Evolution and Use, Lisbon-based ERC-funded academic project. They develop and maintain the MEDEA-CHART Database, a sophisticated search engine and aggregator of early nautical charts data. Online version of Chart No.1 with "Symbols, Abbreviations and Terms" used in nautical charts

  3. Garmin .img - Wikipedia

    en.wikipedia.org/wiki/Garmin_.img

    The Garmin .img format is what Garmin devices use to store the maps for its GPS units. The img files contain a header and many subfiles. Img's filestore is based on FAT system. [1] Some old GPS units are not able to work with multiple img files so they need to be merged into one file called gmapsupp.img using programs like Mapsource. [2]

  4. Office of Coast Survey - Wikipedia

    en.wikipedia.org/wiki/Office_of_Coast_Survey

    The Office of Coast Survey is responsible for preparing and maintaining over a thousand nautical charts covering the exclusive economic zone off the coast of the United States and its territories, extending 200 nautical miles (370 km; 230 mi) offshore and covering a total area of 3,400,000 square nautical miles (12,000,000 km 2; 4,500,000 sq mi ...

  5. Electronic navigational chart - Wikipedia

    en.wikipedia.org/wiki/Electronic_navigational_chart

    An Electronic Navigational Chart (ENC) is a digital representation of a real-world geographical area for the purpose of Marine navigation.Real-world objects and areas of navigational significance, or to a lesser degree - informational significance, are portrayed through Raster facsimiles of traditional paper charts; or more commonly through vector images, which are able to scale their relative ...

  6. Hydrographic survey - Wikipedia

    en.wikipedia.org/wiki/Hydrographic_survey

    The General Bathymetric Chart of the Oceans (GEBCO) is a publicly available bathymetric chart of the world's oceans. The project was conceived with the aim of preparing a global series of charts showing the general shape of the seafloor. Over the years it has become a reference map of the bathymetry of the world's oceans for scientists and others.

  7. United States Coast and Geodetic Survey - Wikipedia

    en.wikipedia.org/wiki/United_States_Coast_and...

    United States Coast Survey emblem from 1853 map. Ever since it began operations, the Coast Survey had faced hostility from politicians who believed that it should complete its work and be abolished as a means of reducing U.S. government expenditures, and Hassler and Bache had fought back periodic attempts to cut its funding.

  8. United States Coast Pilot - Wikipedia

    en.wikipedia.org/wiki/United_States_Coast_Pilot

    The Coast Survey, known from 1878 as the United States Coast and Geodetic Survey, continued to publish the Coast Pilot until it merged with other U.S. Government agencies to form the National Oceanic and Atmospheric Administration (NOAA) on 3 October 1970. The Office of Coast Survey in NOAA ' s National Ocean Service has published them since then.

  9. File:G3 map.svg - Wikipedia

    en.wikipedia.org/wiki/File:G3_map.svg

    The following other wikis use this file: Usage on de.wikipedia.org Autobahn Peking–Taipeh; Usage on ja.wikipedia.org 京台高速道路; Usage on ko.wikipedia.org

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