Geographic coordinate system

In knowledge organization are time and space important categories.

 

In order to organize phenomena in space are three dimensions necessary.

  1. The latitude is the angle between any point and the equator.

  2. The longitude is the angle east or west of an arbitrary point on Earth. By combining latitude and longitude the horizontal position of any location on Earth can be specified.

  3. The altitude (height, depth).

In 1884 a conference in Washington of 25 nations agreed that Greenwich would be the world's Prime Meridian of world time and time zones. Since 1884, the world has set its clocks according to the time of day on the Meridian of Greenwich, longitude 0°.

 

 

 

Literature:

Wikipedia, the free encyclopedia. (2006). Geographic coordinate system. http://en.wikipedia.org/wiki/Geographic_coordinate_system

 

 

See also: Calendar; Geographical Information Systems (Core Concepts in LIS).

 

 

 

Birger Hjørland

Last edited: 26-04-2006

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