Letter | Published:

Ellipticity, Viscosity and Expansion of the Earth

Naturevolume 207page847 (1965) | Download Citation

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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. 1

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

  2. 2

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

  3. 3

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

  4. 4

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

  5. 5

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

  6. 6

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

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Author information

Affiliations

  1. Geophysical Department, Eötvös University, Budapest

    • L. EGYED

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DOI

https://doi.org/10.1038/207847a0

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