Sunday, March 6, 2016

New tips for understanding nautical chart symbols on NOAA nautical charts

U.S. Chart No. 1
Over 100 pages of valuable information on nautical chart symbols
U.S. Chart No. 1 describes the symbols, abbreviations and terms used on
all NOAA, NGA and international nautical charts
Download a free PDF of the latest edition of U.S. Chart No. 1 or
purchase a paper copy from one of NOAA’s certified publishing agents


As a responsible boater, you examine your nautical chart before sailing, determined to avoid problems during a nice trip along the coast.
Charts are packed with symbols and abbreviations, so you might refer to the free copy of U.S. Chart No. 1, which lists all of the symbols used on NOAA nautical charts.
It is an excellent quick reference for identifying unfamiliar symbols.

However, sometimes mariners need a deeper understanding…
Coast Survey is now providing additional information about complex or particularly confusing chart symbols to augment what is available in U.S. Chart No. 1.

The first two tip sheets are available now.
Coast Survey will add more chart symbology tip sheets to the U.S. Chart No. 1 webpage as the need arises.

Fish havens: The typical U.S. Chart No. 1 entry, such as this one for fish haven, lists only the name and the symbols.

The tip sheet explains what fish havens are, what they look like in context with other charted features, and what restrictions may apply to them.

Anchorages and harbors of refuge: The anchor symbol has been used for decades to represent an anchorage on U.S. nautical charts, but the specific meaning of the symbol has evolved over the years.

The tip sheet explains what the symbol means now – and, perhaps more importantly, what it doesn’t mean.

Questions or suggestions? 
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