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2. 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 ...

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. 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. Naval Oceanographic Office - Wikipedia

   en.wikipedia.org/wiki/Naval_Oceanographic_Office

   The Naval Oceanographic Office (NAVOCEANO), located at John C. Stennis Space Center in south Mississippi, is an echelon IV component of the Naval Meteorology and Oceanography Command (NMOC) and comprises approximately 1,000 civilian, military and contract personnel responsible for providing oceanographic products and services to all elements within the Department of Defense.

6. United States Hydrographic Office - Wikipedia

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

   The United States Hydrographic Office (USHO) prepared and published maps, charts, and nautical books required in navigation. The office was established by an act of 21 June 1866 as part of the Bureau of Navigation, Department of the Navy. It was transferred to the Department of Defense on 10 August 1949.

7. Portolan chart - Wikipedia

   en.wikipedia.org/wiki/Portolan_chart

   Portolan charts are nautical charts, first made in the 13th century in the Mediterranean basin and later expanded to include other regions. The word portolan comes from the Italian portolano , meaning "related to ports or harbors ", and which since at least the 17th century designates "a collection of sailing directions".

8. Admiralty chart - Wikipedia

   en.wikipedia.org/wiki/Admiralty_chart

   These works are all in the public domain. Roger Morris, Hydrographer from 1985 to 1990, published Charts and Surveys in Peace and War 1919-1970, a further continuation of Memoirs. [8] A less formal account of British Naval Hydrography in the 19th-Century is given by Steve Ritchie, Hydrographer 1966–1971, in The Admiralty Chart. [5]

9. Bureau of Navigation (United States Navy) - Wikipedia

   en.wikipedia.org/wiki/Bureau_of_Navigation...

   The U.S. Navy's Bureau of Navigation was established in 1862 as part of the reorganization of the Navy Department.Principal responsibilities were to provide nautical charts and instruments and to oversee several activities involved navigation research, including the Naval Observatory.