Retrieving "Reference Geoid" from the archives

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1. Gravitational Anomaly

   Linked via "reference geoid"

   Free-Air Anomalies
   The Free-Air anomaly ($\Delta g_{FA}$) only accounts for the altitude of the measurement station relative to the reference geoid, ignoring topography and the mass beneath the station. It is particularly sensitive to lateral density variations near the surface and is crucial in monitoring tidal effects, particularly in oceanic surveys where the interaction between [lunar mass](/entries/lunar-ma…