Re: AI-GEOSTATS: Question about modelling variograms of a residual property

2008-07-24 Thread Raimon Tolosana
Hi, I also think that transition probabilities might show a better connection to the nature of the original variable, and mcuh less cumbersome... Regarding the sill problem, is it so surprising, that a de-trended variable shows less variance than the original one? If the gaussian variable has a

AI-GEOSTATS: Question about modelling variograms of a residual property

2008-07-23 Thread Patricia
Dear List, I am a PhD student working on geostatistical facies (i.e. categorical) models in the University of Barcelona (Spain). I am using Truncated Gaussian Simulation to build facies models and I have some questions. My dataset is around 100 vertical wells penetrating a deltaic succession.

Re: AI-GEOSTATS: Question about modelling variograms of a residual property

2008-07-23 Thread seba
Hi Patricia I think that an indicator (or a transition probability) approach could be easier to interpret (i.e. each indicator variogram tell you something about the spatial pattern of each single facies). Then, in regard to the sill of your variogram it depends if your variogram is calculated