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Ellipticity, Viscosity and Expansion of the Earth

Abstract

IT is known that the ellipticity1 of an Earth in hydrostatic equilibrium (3.3632 ± 0.006) × 10−3 is greater than that of the actual Earth (3.3535 + 0.0003) × 10−3 derived from high-precision satellite observations2.

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References

  1. Bullard, E. C., Mon. Not. Roy. Astro. Soc., Geophys., Suppl. 5, 186 (1948).

  2. King-Hele, D. G., Geophys. J. Roy. Astro. Soc., 4, 3 (1961).

    Article  ADS  MathSciNet  Google Scholar 

  3. Munk, W. H., and MacDonald, C. J. F., The Rotation of the Earth (Cambridge, 1960).

    MATH  Google Scholar 

  4. Egyed, L., Nature, 173, 534 (1956).

    Article  Google Scholar 

  5. Niskanen, E., Isost. Inst. Publ., 20 (1948).

  6. Crittenden, M. D., J. Geophys. Res., 68, 5517 (1963).

    Article  ADS  Google Scholar 

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EGYED, L. Ellipticity, Viscosity and Expansion of the Earth. Nature 207, 847 (1965). https://doi.org/10.1038/207847a0

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