- Explain why the process “dissolve and merge” often follows vector overlay operations
- Outline the possible sources of error in overlay operations
- Compare and contrast the concept of overlay as it is implemented in raster and vector domains
- Demonstrate how the geometric operations of intersection and overlay can be implemented in GIS
- Demonstrate why the georegistration of datasets is critical to the success of any map overlay operation
- Formalize the operation called map overlay using Boolean logic
- Explain what is meant by the term “planar enforcement”
- Exemplify applications in which overlay is useful, such as site suitability analysis
This knowledge area embodies a variety of data driven analytics, geocomputational methods, simulation and model driven approaches designed to study complex spatial-temporal problems, develop insights into characteristics of geospatial data sets, create and test geospatial process models, and construct knowledge of the behavior of geographically-explicit and dynamic processes and their patterns.
Topics in this Knowledge Area are listed thematically below. Existing topics are in regular font and linked directly to their original entries (published in 2006; these contain only Learning Objectives). Entries that have been updated and expanded are in bold. Forthcoming, future topics are italicized.