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Geographic Information System
Spaciallocation of information with a geographical component.
Global positioning system
It is based on the use of artificial satellites to determine the geographic postion of any location.
It was created in US on 70´s - 80´s
We use it to adjust the time of our watches, to identify new routes to reach our destination, to delimit and even to fire nuclear missiles.
Mapping or Cartography
Elements:
- Cartographic projection
- Symbology
- Associated legend
- Cardinal points
- Absolute location
Imaginary lines, points and circles of the Earth
Earth axis line crosses the center of the Earth line, there are meridians that are perpendicular semi-circles; parallels are minor imaginary circles that are parallel to the equator.
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ResponderBorrarReally great job, very useful and understandable information.
ResponderBorrar