representation of spatial information displaying data on bodies of water and coastal areas.

A special-purpose map designed to meet the special requirements of navigation at sea or on some other waterway, by indicating soundings, currents, and characteristics of the bottom; showing adjacent c [..]

A chart specifically designed to meet the requirements of marine navigation, showing [depth/depths]] of water, nature of bottom, elevations, configuration and characteristics of coast, dangers and aids to navigation. May be a paper chart, electronic navigational chart (ENC) or a raster navigational chart (RNC). Also called marine chart, hydrographi [..]