Introduction to Topic
All data and every analysis we do in GIS has some uncertainty associated
with it. These can include unreliability uncertainties (e.g.
measurement error, resolution, etc.), and structural uncertainties (e.g.
methodological choices). Sometimes those uncertainties matter and
sometimes they don't. That judgement call can only be made effectively
when the purpose of the analysis is clearly articulated and the
significance of uncertainty can be appropriately contextualized.
Meets Course Learning Outcomes
2, 3 & 4.
Uncertainty in GIS
Geomorphic Change Detection
If you want to learn more about Geomorphic Change Detection
see here, or download our software here
Some Good References
- Bolstad P. 2005. GIS fundamentals: A first text on geographic information systems. Eider Press, 620 pp. - See Chapter 14 on Data Standards and Data Quality
- Burrough PA and McDonnell RA. 1998. Principles of Geographical
Information Systems: Spatial Information Systems and Geostatistics.
Oxford University Press: Oxford, 333 pp. - See Chapters Nine (Errors and Quality Control) and Ten (Error Propagation in Numerical Modeling)
- Burrough P.A., van Rijn, R., and Rikken, M. 1996. Spatial Data Quality and Error Analysis Issues: GIS Functions and Environmental Modleing. In: GIS and Environmental Modeling, By Michael F. Goodchild, Louis T. Steyaert, Bradley O. Parks, Carol Johnston (Eds.), Wiley.
- Haining R. 2003. Spatial Data Analysis: Theory and Practice. Cambridge University Press: Cambridge, 432 pp. - See Chapter 4 on 'Data quality: implications for spatial data analysis'
- Hall ST and Post CJ. 2009. Advanced GIS Exercise: Performing Error Analysis in ArcGIS ModelBuilder. Journal of Natural Resources and Life Sciences Education. 38: 41-44.
- Taylor J. 1997. An Introduction to Error Analysis: the Study of
Uncertainties in Physical Measurements, Second Edition. University
Science Books: Sausalito, California, 327 pp.
- Error, Accuracy and Precision in GIS - A very helpful series of webpages on the basics of errors, accuracy and precision in GIS maintained by Kenneth E. Foote and Donald J. Huebner,
The Geographer's Craft Project, Department of Geography, University of
Texas at Austin.
- Uncertainty Propagation in GIS - Curriculum developed by : Gerard B.M. Heuvelink, Faculty of Environmental Sciences, University