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Celestial Mechanics and Dynamical Astronomy

, Volume 87, Issue 1–2, pp 27–38 | Cite as

Influence of the Atmospheric Tides on the Earth Rotation

  • Nikolay Sidorenkov
Article

Abstract

Spectral analysis of the components of the relative atmospheric angular momentum vector is performed based on the series of these components for the 6 h intervals within the period of 1958–2000. These series have been computed in the Subbureau of the Atmospheric Angular Momentum of the International Earth Rotation Service using the NCEP/NCAR reanalysis of atmospheric observations. The basic harmonics of diurnal tides are determined. New results on the fortnight's and week's duration oscillations of the equatorial components of the atmospheric angular momentum are obtained. The zonal tides transformation mechanisms in the atmosphere are discussed. It is shown that the main mechanism of the zonal tides effect on the atmospheric variability is the amplitude modulation of daily oscillations of the relative atmospheric angular momentum. The effects of the atmospheric tides on the Earth rotation are discussed.

atmospheric angular momentum atmospheric tides nutation of the Earth 

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Nikolay Sidorenkov
    • 1
  1. 1.Hydrometcentere of Russia11-13 Bolshoi Predtechenskii pereulokMoscowRussia, e-mail

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