32GEOSTATS: variogram model- further clarification
- Jan 20, 1997Referring back to my original request on variogram modeling, I should
again thank the list member for their great collaboration. Something which
is still not clear to me is some aspect of question 3 and even the list
were silent on that aspect. I will reiterate it in another format to see
if I could possibly receive some help.
Obviously enough, if the spatial pattern is isotropic, then the variogram
is direction invariant. However, if the spatial pattern is anisotropic
(such as zonal or geometric anisotropic), then still a single variogram
could be defined but with more work which will look after the variation in
the behaviour of variogram in all directions.
In summary, if one wants to make a link between the content of chapter 16
in Isaaks and Srivastava and anisotropic parameter (i.e., anis) in GSLIB,
then how that link in terms of understanding could be made?
By reading chapter 20 of "Handbook of applied hydrology" (Maidment, ed.),
I was advised to look at the following paper:
Gelhar, L. W., and C. L. Axness, "Three-dimensional stochastic analysis of
macrodispersion", WRR, vol. 19, no. 1., pp. 161-180, 1983.
After reading two or three pages of that paper, I forgot what my
original question was.
Anyway, your comments in that regard is greatly appreciated.
Best of luck.
|__|__| Mohammad J. Abedini |__|__|
|_____| School of Engineering |_____|
|_____| University of Guelph |_____|
|_____| Guelph Ont, N1G 2W1 |_____|
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