| Name | R_Vertical_Reference |
|---|---|
| Entity Type | Table |
| Description | Used as the datum or zero point for depth or elevation measurements. This reference table holds the list of valid Vertical_Reference values. |
| Submodel | Spatial |
| Entity Scope | Reference |
| Primary Key | Code |
| Natural Key | Code |
| Generalizations | Reference_Entity , Reference_Entity_Parent |
| Specializations |
| Name | Value Domain | Property / Storage Unit | Description | Required / Default | Type |
|---|---|---|---|---|---|
| Active_Flag | boolean | NA |
1 = use without restriction. 0 = avoid use - the value has been deprecated and may be removed in a later release. | Yes 1 |
NUMBER(1) |
| Code | CODE | NA |
A standard abbreviation, mnemonic, or short code that represents the reference value. | Yes |
VARCHAR2(64) |
| Description | STRING2000 | NA |
A textual definition of the reference value. | No |
VARCHAR2(2000) |
| 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) |
| Name | STRING255 | NA |
The spelled-out name of the reference value. | No |
VARCHAR2(255) |
| Source | CODE | NA |
The person, company or application that defined or specified the data (content) for this instance and is considered to be responsible for it. For example, POSC, EPSG, API, ISO, etc.. | No |
VARCHAR2(64) |
| 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) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Alternate_Elevation | Vertical_Reference | The vertical reference for this Alternate Elevation. | Restrict | Yes |
| Coordinate_System | Vertical_Reference | The code or mnemonic that identifies the elevation reference types, e.g., KB, DF, etc. The vertical reference provides the zero measurement point for the vertical axis of the coordinate system. For instance a measured depth coordinate system will have a depth equal to zero at it"s KB, the vertical reference. | Restrict | No |
| Generic_Act_Fac_Invl | Vertical_Reference | Veritical reference | Restrict | No |
| Rock_Sample_Depth_Adjust | Depth_Shift_Datum | Identify the type of vertical reference used in the correction of the datum | Restrict | No |