gravity
A gravity object represents geolocated, time stamped gravity survey data. This is generally, but not exclusively, collected along nearly parallel lines. This type of data is used extensively in exploration for mineral resources, fundamental earth science mapping and other fields where the density of subsurface materials provides insight.
The type parameter describes the survey mode (i.e., how the acquisition was carried out), and must take one of the values "GROUND", "AIR" or "MARINE".
The survey_type parameter describes the type of measurement:
- "GRAV" indicates single-component absolute or relative gradiometry measurements
- "FTG" stands for "Full Tensor Gradiometry"
- "AGG" stands for "Airborne Gravity Gradiometry"
Both "FTG" and "AGG" modes include multi-component measurements of the gravity variation tensor field (of which up to 5 components are unique).
The base_stations array includes at least one base station definition, comprising name, location and a list of gravity lines for which it is associated.
The gravity_line_list array includes one or more survey-line definitions, including the date, version and group of the survey. Each survey-line definition indicates the type of survey line (the geometry and intended use), channel mappings and the associated channel attribute data.
Properties
gravity (v1.2.0)
Gravity survey data.
| Property | Type | Description | Flags |
|---|---|---|---|
| name | String | Name of the object. | ⬆️ ✅ |
| uuid | base-object-properties | Identifier of the object. | ⬆️ ✅ |
| description | String | Optional field for adding additional description to uniquely identify this object. | ⬆️ |
| extensions | Object | Extended properties that may be associated to the object, but not specified in the schema | ⬆️ |
| tags | Object | Key-value pairs of user-defined metadata | ⬆️ |
| lineage | lineage | Information about the history of the object | ⬆️ |
| bounding_box | bounding-box | Bounding box of the spatial data. | ⬆️ ✅ |
| coordinate_reference_system | crs | Coordinate system of the spatial data | ⬆️ ✅ |
| schema | String | ✅ | |
| type | String | Survey mode. | ✅ |
| survey_type | String | Type of survey. | ✅ |
| base_stations | Array[gravity] | Base stations. | |
| gravity_line_list | Array[survey-line] | Gravity line list. | ✅ |
Legend
| Flag | Description |
|---|---|
| ⬆️ | Inherited property |
| ✅ | Required property |
