Abstract
ANY departure of the earth's external gravitational field from symmetry affects several geophysical and astronomical phenomena, especially observed gravity, the form of the level surfaces, which are normal to the direction of gravity, and perturbations of the moon, of which two are secular and one has a period of a month. There is a formal theory connecting them, which amounts to saying that if ? is the geopotential, defined by
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F.R.S.
- HAROLD JEFFREYS
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JEFFREYS, H. The Figure of the Earth*. Nature 162, 915–917 (1948). https://doi.org/10.1038/162915a0
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DOI: https://doi.org/10.1038/162915a0