NCSU GIS 714:
Geospatial Computing and Simulations

4.A Geostatistical simulations

4.A Geostatistical simulations and uncertainty propagation

Outline:
  • mathematical foundations
  • numerical techniques
  • applications
  • open source tools: coupling GRASS GIS and R
  • calibration and validation of models

Lecture

Slides Supplemental materials:

Assignment 4.A

Use geostatistical simulation to map selected landscape feature or phenomenon and evaluate the uncertainty of your result
  • Derive a probability map of stream networks using geostatistical simulation and error propagation techniques, following the methodology described in the Chapter 10, Hengl, T.: A practical guide to geostatistical mapping (theory is in the chapter 2.4) and the references. Suggested workflow in GRASS and R
  • Optional: apply the stream probability mapping method to our small rural watershed using the points in the layer "elev_lid792_randpts" in our data set or any elevation data set of your choice.
  • Optional: evaluate the uncertainty of inundation extent prediction due to errors in a DEM

    Learn how to Run GRASS from R

Homework 4.A

Write a paper about uncertainty propagation using the examples in the assignment or your project - use your judgement to select what you will write about, but the structure should follow a short scientific publication.