Geodesic
Atmospheric Excitation and Variations in the Length of Day
Publications of the Department of Astronomy, Tome 17 (1989) no. 1.

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

The LOD (length of day) and $X3 spectra were computed using the maximum entropy method (MEM). The comparisons show excellent correlation between the axial component of the atmospheric EAMF ($\chi_{3}$) and the changes in the Earth's rotation rate corrected for the effects of the lunar and solar tides. The most important changes are the seasonal variations with annual and semi-annual periods, and a cluster of small peaks with periods between 40 and 70 days i both spectra (LOD and $\chi_{3}$). 
@article{PDA_1989_17_1_a3,
     author = {N. Pejovi\'c},
     title = {Atmospheric {Excitation} and {Variations} in the {Length} of {Day}},
     journal = {Publications of the Department of Astronomy},
     pages = {37 - 50},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {1989},
     url = {http://geodesic.mathdoc.fr/item/PDA_1989_17_1_a3/}
}
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N. Pejović. Atmospheric Excitation and Variations in the Length of Day. Publications of the Department of Astronomy, Tome 17 (1989) no. 1. http://geodesic.mathdoc.fr/item/PDA_1989_17_1_a3/