Deprecated
This module has been deprecated. Please replace it with the lithologic modeling module.
adaptive indicator krig
The adaptive indicator krig module is an alternative geologic modeling concept that uses geostatistics to assign each cell’s lithologic material as defined in a pregeology (.pgf) file, to cells in a 3D volumetric grid.
There are two methods of lithology assignment. Nearest Neighbor is a quick method that merely finds the nearest lithology sample interval among all of your data and assigns that material. It is very fast, but generally should not be used for final work. Kriging provides the rigorous probabilistic approach to geologic indicator kriging. The probability for each material is computed for each cell center of your grid, and the material with the highest probability is assigned to the cell.
Ports
| Direction | Name | Type | Description |
|---|---|---|---|
| Input | Input Field | Field | An input field with nodal data. |
| Input | Input Filename | String | File used to generate the pre-geology file name. |
| Input | Input Refine Distance | Number | The refine distance for the pre-geology file. |
| Output | Output Filename | String | File used to generate the pre-geology file name. |
| Output | Output Refine Distance | Number | The refine distance for the pre-geology file. |
| Output | Geologic Legend Information | Geology Legend | Information required to properly label stratigraphic output or lithology within Legend. |
| Output | Output Field | Field | The output field representing geologic materials. |
Properties
| Property | Type | Description |
|---|---|---|
| Deprecated Module | String | This module has been replaced by lithologic modeling. |
Krig Settings
| Property | Type | Description |
|---|---|---|
| Estimation Type | Choice: Kriging, Nearest Neighbor | Selects between the Nearest Neighbor and Kriging algorithms. |
| Reach | Double | The radial distance (in user units) from any given model node that the kriging module will look for data points to be included in the estimation of the model parameter at that node. Setting the reach to 0 results in the module calculating a reach value approximately two-thirds of the longest distance between any two data points in the data set. |
| Points In Reach | Integer | The maximum number of data points (within the specified reach) that will be considered for parameter estimation at a model node. Not used for Nearest Neighbor interpolation or when the number of samples falls below the Use All Data threshold. |
| Octant Search | Boolean | When selected, searching is performed for each of the eight octants surrounding the point to be kriged. Within each octant a maximum number of points (up to one-fourth of the total points) are selected, then taken sequentially up to the maximum total points. |
| Use All Points | Boolean | Causes the module to include samples up to the All Points Limit value. If the number of samples exceeds the limit value, the Reach and Points In Reach settings are used. |
| All Points Limit | Integer | The maximum number of points to use when interpolating. If there are more samples in the file than this value, the Reach and Points In Reach settings will be used. |
| PGF Refine Distance | Double | The distance used to discretize lithologic intervals into points used in kriging. Refer to the module help for full details on indicator kriging with a .PGF file as input. |
| Max Points Per Interval | Integer | Caps the number of points created between samples in PGF data. |
| Maximum Refined Points | Integer | Sets a limit on the total number of points created when refining a .pgf file. If the number of points generated, plus the original number of file samples, exceeds this value, an error will be reported. |
| Variogram And Anisotropy | Variogram | Controls the variogram model and anisotropy parameters for kriging. |