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| geoscene3d:application:interpolation:interpolation_wizard:advanced_variogram_settings [2020/01/30 21:08] – created rebecca130301_gmail.com | geoscene3d:application:interpolation:interpolation_wizard:advanced_variogram_settings [2020/03/20 17:04] (current) – external edit 127.0.0.1 | ||
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| The Advanced Variogram Settings dialog contains two tabs: Experimental and Model. The Experimental tab is used to calculate experimental variograms and analyze anisotropy in both 2D and 3D. The Model tab is used to construct a variogram model that fits the experimental variogram as good as possible. | The Advanced Variogram Settings dialog contains two tabs: Experimental and Model. The Experimental tab is used to calculate experimental variograms and analyze anisotropy in both 2D and 3D. The Model tab is used to construct a variogram model that fits the experimental variogram as good as possible. | ||
| - | ==== | + | ==== Model ==== |
| - | Model ==== | + | |
| - | ** | + | **Structures ** \\ |
| - | Structures ** \\ | + | |
| Variogram models are constructed from one or more structures and an optional nugget effect (nugget effect does not count as a structure). | Variogram models are constructed from one or more structures and an optional nugget effect (nugget effect does not count as a structure). | ||
| - | __Nugget:__ | + | __Nugget:__ Nugget effect (has no effect on the Power structure).\\ |
| - | Nugget effect (has no effect on the Power structure).\\ | + | TIP: When Nugget = 0 the fitting is disabled\\ |
| - | __TIP:__ When Nugget = 0 the fitting is disabled \\ | + | __Lags:__ Number of calculated lags. This setting is used to create the visual representation in the chart (has no effect on the Kriging).\\ |
| - | __Lags:__ | + | __Lag Distance:__ Distance of calculated lags. This setting is used to create the visual representation in the chart (has no effect on the Kriging).\\ |
| - | Number of calculated lags. This setting is used to create the visual representation in the chart (has no effect on the Kriging). \\ | + | __Add:__ Adds a new default structure to the variogram model.\\ |
| - | __Lag Distance:__ | + | __Delete:__ Deletes the selected structure\\ |
| - | Distance of calculated lags. This setting is used to create the visual representation in the chart (has no effect on the Kriging). \\ | + | __Fit:__ Fits structure type to data\\ |
| - | __Add:__ | + | __Calculate: |
| - | Adds a new default structure to the variogram model. \\ | + | |
| - | __Delete:__ | + | |
| - | Deletes the selected structure \\ | + | |
| - | __Fit:__ | + | |
| - | Fits structure type to data \\ | + | |
| - | __Calculate: | + | |
| - | Calculates the | + | |
| - | experimental variogram, illustrated as black dots. | + | |
| - | ** | + | **Structure ** \\ |
| - | Structure ** \\ | + | __Contribution: |
| - | __Contribution: | + | |
| - | Contribution or scale of the structure. | + | |
| - | ** | + | **Anisotropy (advanced) ** \\ |
| - | Anisotropy (advanced) ** \\ | + | __Angle |
| - | __Angle | + | __Angle |
| - | __:__ Clockwise rotation angle of Y-axis from north. \\ | + | __Angle |
| - | __Angle | + | __Structure Type:__ Available structures are Spherical, exponential, |
| - | __:__ Vertical rotation angle of (rotated) Y-axis from horizontal. Used in 3D only. \\ | + | |
| - | __Angle | + | |
| - | __:__ Rotation around (rotated) Y-axis (plunge). Used in 3D only. \\ | + | |
| - | __Structure Type:__ | + | |
| - | Available structures are Spherical, exponential, | + | |
| - | ** | + | **Structure Type ** \\ |
| - | Structure Type ** \\ | + | |
| Available structures are: Spherical, Exponential, | Available structures are: Spherical, Exponential, | ||
| - | ** | + | **Range ** \\ |
| - | Range ** \\ | + | __AHMax:__ Horizontal range in primary direction of anisotropy (rotated Y-axis).\\ |
| - | __AHMax:__ | + | __AHMin:__ Horizontal |
| - | Horizontal range in primary direction of anisotropy (rotated Y-axis). \\ | + | __AHVert:__ Vertical range in direction of lowest anisotropy (rotated Z-axis). Used in 3D only. |
| - | __AHMin:__Horizontal | + | |
| - | __AHVert:__ | + | |
| - | Vertical range in direction of lowest anisotropy (rotated Z-axis). Used in 3D only. | + | |
| - | ** | + | **Import/ |
| - | Import/ | + | |
| Import/ | Import/ | ||
| - | ==== | + | ==== Experimental ==== |
| - | Experimental | + | |
| Experimental variograms are calculated. Calculation of multiple experimental variograms at different azimuth and dip is necessary to determine anisotropy in the dataset. | Experimental variograms are calculated. Calculation of multiple experimental variograms at different azimuth and dip is necessary to determine anisotropy in the dataset. | ||
| - | ** | + | **Horizontal ** \\ |
| - | Horizontal ** \\ | + | __Azimuth: |
| - | __Azimuth: | + | __Azimuth Tolerance: |
| - | Clockwise rotation angle of Y-axis from north \\ | + | __Horizontal Bandwidth: |
| - | __Azimuth Tolerance: | + | |
| - | Half space horizontal angle from (rotated) Y-axis. A value of 90 degrees will include all data (omnidirectional) \\ | + | |
| - | __Horizontal Bandwidth: | + | |
| - | Maximum horizontal bandwidth parallel to the (rotated) Y-axis. | + | |
| - | ** | + | **Vertical ** \\ |
| - | Vertical ** \\ | + | Used for 3D interpolation only\\ |
| - | Used for 3D interpolation only \\ | + | __Dip:__ Vertical rotation angle of (rotated) Y-axis from horizontal.\\ |
| - | __Dip:__ | + | __Dip Tolerance: |
| - | Vertical rotation angle of (rotated) Y-axis from horizontal. \\ | + | __Vertical Bandwidth: |
| - | __Dip Tolerance: | + | |
| - | Half space vertical angle from (rotated) Y-axis. A value of 90 degrees will include all data (omnidirectional) \\ | + | |
| - | __Vertical Bandwidth: | + | |
| - | Maximum horizontal bandwidth parallel to the (rotated) Y-axis. | + | |
| - | ** | + | **Lag Calculation ** \\ |
| - | Lag Calculation ** \\ | + | __Lags:__ Number of calculated lags.\\ |
| - | __Lags:__ | + | __Lag Separation: |
| - | Number of calculated lags. \\ | + | __Lag Tolerance: |
| - | __Lag Separation: | + | |
| - | Separation between calculated lags. \\ | + | |
| - | __Lag Tolerance: | + | |
| - | Individual point pair distances that fall within this distance from one of the lag distances are included in the calculation. If the lag tolerance is half the Lags Separation all points in the dataset are included. | + | |
| {{: | {{: | ||
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| Experimental variogram settings for 2D. | Experimental variogram settings for 2D. | ||
| - | ** | + | **Value Trimming ** \\ |
| - | Value Trimming ** \\ | + | __Lower:__ Data values below this value are ignored\\ |
| - | __Lower:__ | + | __Upper:__ Data values above this value are ignored |
| - | Data values below this value are ignored \\ | + | |
| - | __Upper:__ | + | |
| - | Data values above this value are ignored | + | |
| - | Calculate: Calculates the | + | Calculate: Calculates the experimental variogram, illustrated as black dots. |
| - | experimental variogram, illustrated as black dots. | + | |
| - | ** | + | **Import/ |
| - | Import/ | + | |
| Import/ | Import/ | ||