gis terminology

A map showing in orange the range of steller's jay and in blue the range of blue jay over a gray shaded relief map of the United States.

Types of GIS Data Explored: Vector and Raster

Caitlin Dempsey

Explore the key differences between GIS vector and raster data, and how each type supports diverse spatial analysis tasks.

The Rise of GIS Terminology

Caitlin Dempsey

When did the terms GIS, geographic information systems, and geospatial start showing up in books?


Caitlin Dempsey

With all the location-based social media applications out there, it’s only logical that, in addition to being able to restrict ...

Methods for Creating Spatial Databases

Caitlin Dempsey

There are several ways in which to bring spatial data into a GIS. This article provides a brief overview of some of the more common methods for creating vector GIS data.