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Python Geospatial Analysis Essentials by Erik Westra

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Understanding geospatial data

Geospatial data is data that positions things on the Earth's surface. This is a deliberately vague definition that encompasses both the idea of location and shape. For example, a database of car accidents may include the latitude and longitude coordinates identifying where each accident occurred, and a file of county outlines would include both the position and shape of each county. Similarly, a GPS recording of a journey would include the position of the traveler over time, tracing out the path they took on their travels.

It is important to realize that geospatial data includes more than just the geospatial information itself. For example, the following outlines are not particularly useful by themselves:

Once you add ...

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