In geodesy and geophysics, theoretical gravity or normal gravity is an approximation of the true gravity on Earth's surface by means of a mathematical model representing Earth. The most common model of a smoothed Earth is a rotating Earth ellipsoid of revolution (i.e., a spheroid).
Representations of gravity can be used in the study and analysis of other bodies, such as asteroids. Widely used representations of a gravity field in the context of geodesy include spherical harmonics, mascon models, and polyhedral gravity representations.[1]
- ^ Izzo, Dario; Gómez, Pablo (2022-12-28). "Geodesy of irregular small bodies via neural density fields". Communications Engineering. 1 (1): 1–12. doi:10.1038/s44172-022-00050-3. ISSN 2731-3395. PMC 10956048.
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