DEM Differencing/Error Procedures - Appendix
My M.S. thesis used Digital Elevation Models (DEMs) to
calculate volume and elevation change at Santiaguito and Pacaya
volcanoes in Guatemala. This appendix will show how the DEM
differencing and errors were processed using ArcGIS 9.0. Please
note
that instructions may vary slightly using different versions of ArcGIS,
but many of the same tools should be present. This website will
serve to facilitate future analysis of DEMs. I have provided
step-by-step instructions for the creation, differencing,
and error analysis of the DEMs. For future analysis, the
user
should have a working knowledge of understanding and using ArcGIS.
The copyright information for ESRI screenshots is located here.
I. Background of Datasets:
a. 1954 DEM creation
b. 2001 DEM creation
II. DEM Differencing
III. Error Analysis
IV. Conclusions and Final Thoughts
V. References
VI. Additional Information (Kriging) (this was not used in the final analysis, but the steps are still presented here, in case they need to be used in the future.)