Navigation - Basic Concepts

Basic Concepts

Longitude (λ)
Lines of longitude appear vertical with varying curvature in this projection, but are actually halves of great ellipses, with identical radii at a given latitude.
Latitude (φ)
Lines of latitude appear horizontal with varying curvature in this projection; but are actually circular with different radii. All locations with a given latitude are collectively referred to as a circle of latitude.
The equator divides the planet into a Northern Hemisphere and a Southern Hemisphere, and has a latitude of 0°.
Geodesy
Fundamentals
  • Geodesy
  • Geodynamics
  • Geomatics
  • Cartography
Concepts
  • Datum
  • Distance
  • Geoid
  • Fig. Earth
  • Geodetic system
  • Geodesic
  • Geog. coord. system
  • Hor. pos. represent.
  • Lat. / Long.
  • Map proj.
  • Ref. ellipsoid
  • Satellite geodesy
  • Spatial ref. system
Technologies
  • GNSS
  • GPS
  • GLONASS
  • IRNSS
Standards
  • ED50
  • ETRS89
  • GRS 80
  • NAD83
  • NAVD88
  • SAD69
  • SRID
  • UTM
  • WGS84
History
  • History of geodesy
  • NAVD29

Read more about this topic:  Navigation

Famous quotes containing the words basic and/or concepts:

    “Nothing and no one can destroy the Chinese people. They are relentless survivors. They are the oldest civilized people on earth. Their civilization passes through phases but its basic characteristics remain the same. They yield, they bend to the wind, but they never break.”
    —Pearl S. Buck (1892–1973)

    “Once one is caught up into the material world not one person in ten thousand finds the time to form literary taste, to examine the validity of philosophic concepts for himself, or to form what, for lack of a better phrase, I might call the wise and tragic sense of life.”
    —F. Scott Fitzgerald (1896–1940)