Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007acasn..48..449z&link_type=abstract
Acta Astronomica Sinica, vol. 48, no. 3, p. 449-455
Astronomy and Astrophysics
Astronomy
Solar System: Earth, Physical Data And Processes: Gravitation
Scientific paper
The space-time variations of the earth deformation and gravitational field have important meaning, whether in basic theoretical research or building space geographical information. The earth would come into being deformation under the function of every kind of mechanical mechanisms, this deformation again induced change of gravitational potential, namely, deformable accession potential or Eulerian increments of gravitational potential. This paper had been based on the theory of vector spherical harmonic functions, discussed influences of the tidal generating force, the loading force, the surface and boundary stress on the earth deformation and the incremental gravitational potential. At one time, presented the material expressions Eulerian increment of gravitational potential and the theoretical relationship among Love numbers, for a homogeneous and incompressible deformable earth. This work could provided reference and gist for theoretical research of the earth deformation.
Tie Qiong-Xian
Yang Lantian
Zhang Han-Wei
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