Summary
A principle of determining the Earth's gravitational field through the Stokes' constants is presented. The problem is properly posed according to Hadamard. The zero-frequency tidal terms due to the Moon and the Sun are introduced analytically into the absolute terms of equations. The ellipsoidal coordinates are used. The reference field should be so close to the actual one, that the problem can be solved in a linear approximation. The proximity of the fields mentioned does not need to be of the highest possible degree.
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Contribution to the I.A.G. Special Commission SC3 Fundamental Constants (SCFC)
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Yurkina, M.I. Determination of Stokes' constants respecting zero -frequency tidal term due to the Moon and the Sun. Stud Geophys Geod 37, 317–325 (1993). https://doi.org/10.1007/BF01613578
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DOI: https://doi.org/10.1007/BF01613578