Geographic Information Systems

@inproceedings{Seeger2004GeographicIS,
  title={Geographic Information Systems},
  author={Bernhard Seeger and Peter Widmayer},
  booktitle={Handbook of Data Structures and Applications},
  year={2004}
}
The power of a GIS comes from the ability to relate different information in a spatial context and to reach a conclusion about this relationship. Most of the information we have about our world contains a location reference, placing that information at some point on the globe. When rainfall information is collected, it is important to know where the rainfall is located. This is done by using a location reference system, such as longitude and latitude, and perhaps elevation. Comparing the… 

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