Expression of Geoid According to the Law of Entropic Impedance
A geoid is the surface where the total potential of the Earth’s gravitational and rotational effects is constant. In the classical definition, this is: Φ(𝐫) = Φg (𝐫) + Φc (𝐫) = Φ0 It is expressed as follows: Here, Φg is the gravitational potential, and Φc is the centrifugal potential due to rotation.









