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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 ...
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 ...
An 11-member of Board of Directors governs the North Carolina State Ports Authority. Of the Board, six members are appointed by the Governor, the North Carolina General Assembly appoints four, and the North Carolina Secretary of Transportation fills the last position. North Carolina Ports is a corporate body receiving no direct taxpayer subsidy ...
The data for method 1 was retrieved from a CRS Report for Congress [1] using data from U.S. Department of Commerce, National Oceanic and Atmospheric Administration, The Coastline of the United States, 1975. [2] This is based on measurements made using large-scale nautical charts. The figure for Connecticut was arrived at separately and may not ...
Various charts and pilot books for North American waters were published in England beginning in 1671, but the first book of sailing directions, charts, and other information for mariners in North American waters published in North America was the American Coast Pilot, first produced by Edmund M. Blunt in Newburyport, Massachusetts, in 1796.
The charts are stored in BSB format. "[The BSB file format] is a proprietary format of BSB Electronic Charts, LLP (bought by MapTech, Inc.)." [1] Image manipulation tools such as GDAL can read the image information, but there also is georeferenced data in the navigational charts.
When the vessel enters the waters of a different state, the home FMC must forward the report of the vessel's entry into those waters to the foreign state FMC. Until the vessel leaves the foreign state's coastal area, the home FMC must forward to the foreign state FMC the position, speed, and course reports at least every two hours.
Disaster struck the Coast Survey on September 8, 1846, when the survey brig Peter G. Washington encountered a hurricane while she was conducting studies of the Gulf Stream in the Atlantic Ocean off the coast of North Carolina. She was dismasted in the storm with the loss of 11 men who were swept overboard, but she managed to limp into port.