Hi,
I have a 3D data set that has been sampled by a private company. They
lacked a complete knowledge of geostatistics so there is no sampling
strategy involved. Another thing is that the support of the samples is
strongly fluctuating. Horizontally the sampling support is constant and
can be
Hi Samuel,
I have dealt with similar problems when analyzing the spatial
distribution of dioxin and other heavy metals in river sediments.
Core lengths can strongly fluctuate from one sampling point to the
next. The empirical approach I used was to weigh each sample
proportionally to its length
Samuel
Practical Geostatistics (1979) Chapter 3. Get it for
free at
http://uk.geocities.com/drisobelclark/practica.htm
Isobel
http://geoecosse.bizland.com/books.htm
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Hi-
It has been my habit to fit a variogram models as NUG + SPH + SPH
omnidirectionally to get Nugget and two partial sills and then use these
values it other directions and vary the two ranges in each direction. Can
gstat accept values for nug and two partial sills and then fit just the
ranges?
