reference ellipsoid
C38349
concept
A reference ellipsoid is a mathematically defined, smooth, oblate spheroid that approximates the shape of the Earth (or another celestial body) and serves as a standard surface for geodetic calculations and coordinate systems.
All labels observed (5)
| Label | Occurrences |
|---|---|
| reference ellipsoid canonical | 3 |
| oblate spheroid | 2 |
| Earth ellipsoid | 1 |
| Earth ellipsoid model | 1 |
| geodetic reference ellipsoid | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: reference ellipsoid
Generated description
A reference ellipsoid is a mathematically defined, smooth, oblate spheroid that approximates the shape of the Earth (or another celestial body) and serves as a standard surface for geodetic calculations and coordinate systems.
Instances (5)
| Instance | Via concept surface |
|---|---|
| Airy Modified ellipsoid | — |
| Maclaurin spheroid | oblate spheroid |
| Airy 1830 ellipsoid | — |
| Bessel ellipsoid | — |
| GRS80 | geodetic reference ellipsoid |