astrogravimetric leveling

astrogravimetric leveling

[¦as·trō‚grav·ə¦me·trik ′lev·əl·iŋ]
(geodesy)
A concept whereby a gravimetric map is used for the interpolation of the astrogeodetic deflections of the vertical to determine the separation of the ellipsoid and the geoid in studying the figure of the earth.