Physics – Geophysics
Scientific paper
May 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982cemec..27...79s&link_type=abstract
Celestial Mechanics, vol. 27, May 1982, p. 79-106.
Physics
Geophysics
127
Celestial Mechanics, Earth Rotation, Geophysics, Nutation, Coefficients, Earth-Moon System, Polar Wandering (Geology), Rigid Structures, Tables (Data)
Scientific paper
The President of the International Astronomical Union (IAU) Commission 4 established the Working Group on Nutation at the request of the IAU Symposium No. 78 on Nutation and Earth's Rotation in May 1977. It was found that there are a number of problems concerning the theory of nutation currently in use, which is due to Woolard (1953). A number of changes were proposed in order to eliminate these problems. The changes are related to the use of a nonrigid model of the earth without axial symmetry, constants which are consistent with the 1976 IAU System of Astronomical Constants, and the selection of the reference pole. The new nutation theory, incorporating the considered changes, is to be referred to as the '1980 IAU Theory of Nutation'. This nutation theory was developed by Wahr (1979, 1981) based on previous work by Kinoshita (1977) and Gilbert and Dziewonski (1975).
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