chartwork
Navigational map preparation
Chartwork is the practice of reading and plotting courses on nautical or aeronautical charts—the navigational maps used at sea or in the air.
The term covers measuring distances, calculating bearings, and marking positions: The captain spent an hour on chartwork before entering the harbor.
Chartwork was once essential training for all navigators; GPS has reduced but not eliminated the skill.
Devising a secret plan
- waypointNavigation reference location
- bearingPosture or orientation
- coursePlanned path forward
- dead reckoningPosition-tracking via estimated motion
piloting · compass rose · dividers · GPS · radar · fix · position · track
Something that extends outward
- scaleMeasure of relative size
- legendUnverified traditional tale
- gridFramework of intersecting lines
- coordinatesLocation-specifying number pairs
contour · elevation · datum · symbols · soundings · shoreline · coastline · graticule
Subaqueous topographical measurement
- soundingsMeasured water depths
- fathomNautical depth unit
- seafloorOcean's solid base
- submarine cableSubmerged telecommunications wire
tidal stream · survey · hydrographer · seabed
Tethered nautical signal
- lighthouseCoastal beacon tower
- anchorageSecure harbor spot
- shipping laneDesignated ocean travel path
- restricted areaSpace with controlled entry
channel · reef · shoal · wreck · obstruction · port · starboard · fairway
plotting
Devising a secret plan
dead reckoning · piloting · compass rose · dividers · GPS · radar · fix · position · track · heading
projection
Something that extends outward
coordinates · contour · elevation · datum · symbols · soundings · shoreline · coastline · graticule · inset
bathymetry
Subaqueous topographical measurement
submarine cable · tidal stream · survey · hydrographer · seabed
buoy
Tethered nautical signal
- lighthouseCoastal beacon tower
- anchorageSecure harbor spot
- shipping laneDesignated ocean travel path
restricted area · channel · reef · shoal · wreck · obstruction · port · starboard · fairway · approaches
- seamanshipseamanship, steering, anchoring, navigation, docking
- navigationcompass, compass rose, signs, navbar, headings
chartworkGPS navigation
Satellite-based directional system
satellite navigation · autopilot · dead reckoning · pilotage · celestial navigation
chart, work, charts, charted, charting, works, worked, working, worker