Atmospheric excitation of the Earth's annual wobble: 1980-1988

1991 ◽  
Vol 96 (B4) ◽  
pp. 6577-6582 ◽  
Author(s):  
B. Fong Chao ◽  
Andrew Y. Au
Keyword(s):  
Atmospheric Excitation ◽  
Annual Wobble

scholarly journals Short-Period Oscillations of Earth Rotation

2000 ◽  
Vol 178 ◽  
pp. 533-544 ◽  
Author(s):  
B. Kołaczek ◽  
W. Kosek ◽  
H. Schuh
Keyword(s):  
Seasonal Variations ◽  
Earth Rotation ◽  
Polar Motion ◽  
Correlation Coefficients ◽  
Data Sets ◽  
Annual Variations ◽  
Geodetic Vlbi ◽  
Atmospheric Excitation ◽  
Short Period ◽  
Seasonal Oscillations

AbstractSub-seasonal variations and especially sub-seasonal oscillations with periods of about 120, 60, 50, 40 days in polar motion and of about 120, 60–90, and 50 days in LOD are presented. Variations of amplitudes of these sub-seasonal oscillations of polar motion are shown. Maxima of these amplitudes are of the order of 2–4 mas. These oscillations are elliptical ones. The correlation coefficients between geodetic and atmospheric excitation functions in this range of the spectrum are variable and have annual variations. Maxima of correlation coefficients are of the order of 0.6–0.8.Modern geodetic VLBI experiments provide very accurate results in polar motion and UT1–UTC with a temporal resolution of 3–7 minutes. Several irregular, quasi-periodic variations were found. In many UT1–UTC data sets, oscillations with periods around 8 hours and between 5 and 7 hours can be seen.

scholarly journals The atmospheric excitation of rapid polar motions

1988 ◽  
Vol 128 ◽  
pp. 365-370 ◽  
Author(s):  
T. M. Eubanks ◽  
J. A. Steppe ◽  
J. O. Dickey
Keyword(s):  
Atmospheric Pressure ◽  
Normal Modes ◽  
Geodetic Data ◽  
Atmospheric Excitation ◽  
Pressure Changes

Analysis of data from new, highly accurate, geodetic techniques reveals rapid polar motions. Comparison of the new geodetic data and meteorological excitation estimates shows that the observed rapid polar motions are correlated with atmospheric pressure changes, and that these changes are related to atmospheric normal modes.

scholarly journals Atmospheric Excitation of the Earth's Wobble

1937 ◽  
Vol 4 ◽  
pp. 339-358
Author(s):  
Walter Munk ◽  
El Sayed Mohamed Hassan
Keyword(s):  
Atmospheric Excitation

Atmospheric excitation of planetary free oscillations

1998 ◽  
Vol 10 (49) ◽  
pp. 11557-11560 ◽  
Author(s):  
N Kobayashi ◽  
K Nishida
Keyword(s):  
Free Oscillations ◽  
Atmospheric Excitation
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