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A 1976 United States NOAA chart of part of Puerto Rico A nautical chart of the Warnemünde harbor shown on OpenSeaMap. A nautical chart or hydrographic chart is a graphic representation of a sea region or water body and adjacent coasts or banks.
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.
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.
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 ...
Nautical publications is a technical term used in maritime circles describing a set of publications, either published by national governments or by commercial and professional organisations, for use in safe navigation of ships, boats, and similar vessels.
Tasmania, with capital Hobart, is off the coast of Victoria, across the Bass Strait. The Indian Ocean is to the west and northwest, the South Pacific Ocean to the east, the Southern Ocean to the south, and the Tasman Sea to the southeast. The Great Australian Bight to the south and the Gulf of Carpentaria to the north are the major bays.
Charts often showed a great deal of detail of features on land as well as sea. Depths were shown by individual soundings while hills and mountains were shown by hatch marks. Printing was in black and white, but some charts were hand-coloured, either to emphasise water depth or terrain, or to indicate specific features such as lighthouses.
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 ...