National Center for Geographic Information and Analysis
Unit 04 - The Raster GIS
- Author(s): Unit 04, CC in GIS
- Tomlin, Dana
- Editor(s): Goodchild, Michael F.
- Kemp, Karen K.
- et al.
This unit introduces the raster data model for representing geographic phenomena. It differentiates it from the vector model and discusses appropriate applications, how a raster is created, the types of values that may be stored in a raster, and fundamental concepts like resolution, orientation, and zones. The unit concludes with an example analysis using a raster GIS.