Stochastic Simulations

Geostatistical simulations are used to simulate for each target point a set of probable values. The advantage of this technique is that the user will have access to non linear estimates as the probability to be over a given threshold under constraints.

The post processor provided in ISATIS calculates different types of such results (volumetrics, probability maps, risk curves...).

Each simulation technique in ISATIS can be described according to several criteria such as:
 the characteristics of the resulting field
 the model to which it corresponds
 the algorithm that is used to generate it
 the capability of honoring data (referred to as Conditional simulations).

From Isotropy...

• The Characteristics
   a continuous function
   a discrete function
   a set (values 0 or 1)

• The Model
   Multigaussian:
   Truncated Gaussian
   Dead Leaves
   Fractal
   Mosaic
   Boolean

• The Algorithm
   Turning Bands
   L.U. decomposition
   Sequential Gaussian
   Truncated Gaussian
   Plurigaussian
   Object based
   Sequential Indicator
   Fractal
   Boolean
   Partition
   Substitution

...to Anisotropy

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