| Name | Experimental_Variogram |
|---|---|
| Entity Type | Table |
| Description | An empirical variogram computed from data. Experimental variograms are used to determine the model for how a variable changes as a function of distance. The model may then be used in "kriging" (i.e., an optimal prediction). |
| Submodel | Uncertainty |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | |
| Generalizations | Entity , IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain / Measurement | Description | Required / Default | Type |
|---|---|---|---|---|
| Azimuth | double Plane_Angle |
The angle between pairs that are to be included in the variogram. An Azimuth _Tolerance is used to relax this constraint. | No |
NUMBER |
| Azimuth_Bandwidth | double Length |
The maximum distance that the endpoint of a pair may be from the Azimuth specified before the pair is excluded from the variogram computation. | No |
NUMBER |
| Azimuth_Tolerance | double Plane_Angle |
The angular tolerance in the horizontal plane around Azimuth. Pairs that have azimuths outside the range given by the specified Azimuth plus or minus the Azimuth _Tolerance will be excluded from the variogram. | No |
NUMBER |
| Dip_Angle | double Plane_Angle |
The dip angle of pairs to be included in the variogram, subject to a tolerance specified by Dip_Tolerance. | No |
NUMBER |
| Dip_Bandwidth | double Length |
The maximum distance that the endpoint of a pair may be away from the specified Dip before the pair is excluded from the variogram computation. The distance is measured perpendicular to the dip in the vertical plane. | No |
NUMBER |
| Dip_Tolerance | double Plane_Angle |
The angular tolerance above and below the specified Dip. Pairs that have dips outside the range given by the specified dip plus or minus the Dip_Tolerance will be excluded from the variogram. | No |
NUMBER |
| Existence_Kind | REF_EXISTENCE_KIND NA |
A reference value that describes the state of existence in the lifecycle of the entity, for example, Planned, Predicted, Required, Simulated, and Actual. | Yes Actual |
VARCHAR2(64) |
| GUID | STRING128 NA |
Globally Unique IDentifier for an instance of a class. This GUID is not generated by the database, but is the GUID used by the application on first access of this object. Use of this property is optional and completely under the control of application developers. | No |
VARCHAR2(128) |
| Id | ID No_Unit |
Unique identifier for this entity. | Yes |
NUMBER(38) |
| Insert_Date | DATE NA |
Date the entity was created in the repository | No |
DATE |
| Insert_User | STRING64 NA |
The name of the user responsible for the creation of this entity in the repository. | No |
VARCHAR2(64) |
| Lag_Length_Increment | double Length |
The amount to increase the distance between value pairs between calculations when creating the experimental variogram. | No |
NUMBER |
| Lag_Tolerance | double Length |
The distance tolerance around the lag for grouping distance pairs into lag classes. | No |
NUMBER |
| Maximum_Lag_Length | double Length |
The maximum value that the lag, or distance between value pairs, can have when computing the variogram. | No |
NUMBER |
| Name | ENTITY_NAME NA |
The name given to any object or data item, e.g. Name of Well, Name of Field, etc. | No |
VARCHAR2(255) |
| Original_Source | STRING64 NA |
The name of the person, Organization or project source that originally provided this entity, e.g. "IHS-EnergyData" or "FinderUpper Stratton Deeper Pool 15" | No |
VARCHAR2(64) |
| Produced_By | STRING64 NA |
ID of the activity that was executing when the entity was created, for data created programmatically. | No |
VARCHAR2(64) |
| Remarks | STRING2000 NA |
Any type of remarks added to an entity instance. | No |
VARCHAR2(2000) |
| SDAT_Label | int No_Unit |
Label used by the security system for entitlements. SDAT is Secure Data Access Technology. | No |
NUMBER(10) |
| Source | STRING64 NA |
Name of the person or organization responsible for this entity"s E and P content and quality. Not the data technologist or IT expert creating the entity, for which see IT_Object.Insert_User and Update_User. | No |
VARCHAR2(64) |
| Spatial_Correlation_Id | Spatial_Correlation |
The Spatial_Correlation that the experimental variogram was run for. | No |
NUMBER(38) |
| Update_Date | DATE NA |
Date of the most-recent modification to the entity. | No |
DATE |
| Update_User | STRING64 NA |
The name of the user responsible for the last modification to this entity. | No |
VARCHAR2(64) |
| Version | STRING255 NA |
The form or variant of the entity. | Yes 1 |
VARCHAR2(255) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Experimental_Range | Experimental_Variogram | The experimental variogram that the range is specified for. | Cascade | No |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Spatial_Correlation | Spatial_Correlation | The Spatial_Correlation that the experimental variogram was run for. | Cascade | No |