A mathematical model that describes the surface of a geoid based upon a geodetic datum and associated reference ellipsoid. The geoid model is defined using a set of spherical harmonic coefficients or an implemented set of algorithms in a computer program.

geoid_model_s (PK, M: CHAR VARYING(19))

Surrogate key of the table.


geoid_model_id (M: CHAR VARYING(40))

geoid_model.identifier
The identifier for a geoid model.


geodetic_datum_id (FNK, M: CHAR VARYING(80))

geoid_model.geodetic_datum
This describes the geodetic datum which was used as the basis of this geoid model. The geoid is described by this model relative to this geodetic datum.
Defines a foreign key to table geodetic_datum.


data_value (O: CHAR VARYING(16))

geoid_model.data_value
The representation used to define the geoid undulation with respect to points on a geodetic datum and the associated reference ellipsoid. These representations may be a set of coefficients, algorithms, grids, or computer software.


description (O: CHAR VARYING(2000))

geoid_model.description
A remark about the geoid model.


represent_s (FSK, O: CHAR VARYING(19))
represent_t (O: CHAR VARYING(16))

grid_geometry_behavior.represent
This is the geometry description that is the original for which this representation is an equivalent representation.
represent_s: Implements a foreign key to a row in one of the tables projected from entity grid_geometry_behavior depending on the value of the next column (See below).
represent_t: Defines the name of the referenced table. Possible values are defined in @grid_geometry_behavior.