Deceleration in the Earth's rotation due to the Sun |
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| Authors: | Milan Bur?a |
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| Institution: | (1) Astronomical Institute, Czechosl. Acad. Sci., Prague |
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| Abstract: | Summary The estimate of the tidal long-term decrease in the angular velocity  of the Earth's rotation due to the Sun is given as –(0.8±0.3)×10
–22
rad s
–2. It was computed on the basis of the observed total long-term decrease in , of the observed tidal deceleration of the Moon and the observed decrease in the second-degree zonal Stokes geopotential harmonic term. Adopting the estimate given, the product of the Love number and the tidal phase lag angle due to the Sun (in degrees) comes out as 0.53±0.20.
      am      a  z n u uu    u z mu a u  u,  az  : –(0,8±0,3) 10
–22
a¶rt;
–2
.  ¶rt;  ua n a ¶rt;a u , n a¶rt;a nuu u ¶rt;z ¶rt;u u  u n a¶rt;a u mz az znmuaz naama ma.  u num n au, m nu¶rt;u ua a a z u ( za¶rt;a )  a z nuua a (0,53±0,20).
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