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Geographic Information Systems (GIS) and Geospatial Data

A guide to geospatial data and software.

Intro to Geospatial Data

Geospatial Data is any type of data which has a spatial component. It is required for all GIS work. Geospatial data can range in complexity from a list of cities with an associated data point (like population) to satellite and aerial imagery. The type of geospatial data you need is driven by your research question and in turn the type of geospatial data you have will help you determine which GIS tool is right for your project. 

DC Data Sources

National and Global Data Sources

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