Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...243..276k&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 243, no. 1, March 1991, p. 276-282. Polish Academy of Sciences-supported resea
Astronomy and Astrophysics
Astrophysics
2
Annual Variations, Earth Atmosphere, Earth Rotation, Laser Ranger/Tracker, Polar Wandering (Geology), Angular Momentum, Lageos (Satellite), Laser Interferometry, Very Long Base Interferometry
Scientific paper
Semiannual oscillations over the last ten years have been computed from pole coordinates determined from Lageos laser ranging data by the Center for Space Research (CSR). Equatorial component variations of the atmospheric excitation functions chi(1) and chi(2) of the NMC in the spectral range of a semiannual oscillation have been compared with values of the excitation function psi(1) and psi(2) from the CSR pole coordinate data. These estimations indicate some influence of atmospheric angular momentum variations on the semiannual oscillation of polar motion in the direction of the x-axis and a slightly stronger influence in the y-axis direction.
Gambis Daniel
Hozakowski W.
Kolaczek Barbara
Kosek Wieslaw
Nastula Jolanta
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