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Motion of the Core, and Its Influence on the Earth's Axis

Published online by Cambridge University Press:  27 June 2016

Jose Mateo
Jose Mateo*
Affiliation:
La Plata Astronomical Observatory, La Plata, Argentina

Abstract

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After the advent of artificial Earth satellites, an accurate knowledge of the harmonic coefficients of the Earth's potential has enabled us to determine the size and shape of the Earth with extraordinary accuracy.

The gravitational force between the core and the rest of the Earth, which makes both centers of mass tend to coincide, is so enormous that there is a strong possibility of a very slow motion of the core forcing its way into the mantle. It includes secular variations in both latitude and the time of rotation of the Earth.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 48: Rotation of the Earth , 1972 , pp. 185 - 188
Copyright
Copyright © Reidel 1972 

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