A Hamiltonian theory for an elastic earth - Secular rotational acceleration

Details A Hamiltonian theory for an elastic earth - Secular rotational acceleration A Hamiltonian theory for an elastic earth - Secular rotational acceleration

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991cemda..52..381g&link_type=abstract

Celestial Mechanics and Dynamical Astronomy (ISSN 0923-2958), vol. 52, no. 4, 1991, p. 381-396.

Astronomy and Astrophysics

Astronomy

6

Earth Mantle, Earth Rotation, Elastic Deformation, Gravitational Effects, Hamiltonian Functions, Acceleration, Earth Tides, Secular Variations

Scientific paper

A previous Hamiltonian theory for the rotation of an earth whose elastic mantle is deformed by rotation and linisolar attraction is applied to the study of the secular acceleration of the earth's rotation. Since it is a result of the inelasticity, the theory is extended to include a phase lag. A value of -5.6 x 10 exp -22 rd/sq s, which agrees perfectly with the latest observational results, is obtained.

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