680 Lab 6 - Sequential Gaussian Simulation
Objective: The lab's main objective is check out
sequential Gaussian simulation.
You'll probably opt to use ArcGIS Geostatistical Analyst's
facilities but see below for an R option.
If you are feeling really in sync with W&O, you can
Just one data set this time (again, like the W&O example,
sorry it's not more adventurous):
- Broom's Barn Farm - exchangable potassium
If you have not done it yet, read the Arc documentaiton
on geostatistical layers and on Gaussian simulation.
(Bonus if you find simulated annealing as an
option in arc and tell us where.)
Then, try it --- simulate several realizations of the
surface. Compare them (visually or analytically) with
each other and with the kriged surface.
Try the examples in D&R section 3.13, as they are
presented on pages 74-76. (This would get you away
from both Arc and Brooms' Barn Farm for a bit.)
What do you notice about the tool?
(Do you get a chance to specify the model
that W&O fit? To specify how many times to simulate
the surface? Are there both conditioned and unconditioned
options? Does the software let/make you keep and/or examine all
of the several realizations? Does it provide summary
information on the set of simulated surfaces?)
Report what you've found.
A brief (maximum 5 pages) report addressing your assessment
of the technique.
Due: in two weeks.