sea chart

Sailor's navigation aid

A sea chart is a map designed for marine navigation, showing water depths, coastlines, hazards, and aids to navigation like buoys and lighthouses.

Unlike land maps, sea charts emphasize what's underwater and dangerous: The captain consulted the sea chart before entering the harbor.

Also called a nautical chart.

navigation

compass

Device showing cardinal directions

dead reckoning · pilotage · sextant · astrolabe · quadrant · celestial navigation · lighthouse · buoy · channel marker · shipping lane

cartography

atlas

Bound collection of charts

key · latitude · longitude · meridian · grid · coastline · soundings · contour · topography · bathymetry

features

depth sounding

Measuring water depth

  • fathomNautical depth unit
  • shoalShallow water hazard
  • reefUnderwater rock or coral formation

sandbar · channel · harbor · bay · strait · cape · headland · island · archipelago · seabed

exploration

voyage

Journey by sea

terra incognita · New World · Magellan · Columbus · caravel · galleon · Age of Discovery · circumnavigation · pioneering

Categories
Opposites
domain of navigation

sea chartroad map

Route-planning guide

road atlas · highway map · street map · topographic map · terrain map

element depicted

sea chartland survey

Measuring and mapping terrain

terrain map · elevation map · relief map · geological map · political map

specificity of navigation

sea chartworld map

Flat Earth depiction

globe · atlas · wall map · political map

Family

sea, card, chart, seashore, charts, charter, seaport, seafaring, seaboard

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G