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U.S. Chart No. 1 - Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts
Author: National Oceanic and Atmospheric Administration, National Geospatial-Intelligence Agency
Genre: Reference book
Publisher: NOAA, NGIA
Pages count: 136
Description: 13th Edition of U.S. Chart No. 1 Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts published on April 15, 2019
U.S. Chart No. 1 presents two types of symbology used for marine navigation – the symbols used on paper nautical charts (and their digital raster image equivalents) and the corresponding symbols used to portray Electronic Navigational Chart (ENC) data on Electronic Chart Display and Information Systems (ECDIS).
ContentsPaper Chart Symbols:
INT — The international or “INT” symbols specified in the Regulations for International (INT) Charts and Chart Specifications of the IHO (International Hydrographic Organization). These symbols are used by many countries around the world, including the United States.
NOAA — Symbols used on charts produced by the National Oceanic and Atmospheric Administration (NOAA) when an INT symbol is not used.
NOAA produces nautical charts for all U.S. waters, including the Great Lakes and U.S. Territories.
NGA — Symbols used on charts produced by the National Geospatial- Intelligence Agency (NGA) when an INT symbol is not used. NGA produces nautical charts for the U.S. military and for areas outside of U.S. waters.
ECDIS — Symbols used to portray ENCs on ECDIS navigation systems. Use of ECDIS is required for large commercial ships on international voyages. These symbols are specified in IHO Specifications for Chart Content and Display Aspects of ECDIS.