NASA NTRS · 19790013340
How do earth tides affect astronomers?
Abstract
Earth tides affect astronomical observations of the Earth's rotation in the following two ways: (1) verticals are deflected; and (2) the polar moment of inertia of the Earth is changed causing periodic variations in the rotation rate. The diurnal and semidiurnal tides and nutation were examined in periodic variations. Results indicate little change occured in the polar motions. Nutation observations were disturbed rather seriously by the diurnal tides.
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Sasao, T.. 1978-01-01. How do earth tides affect astronomers?. https://ntrs.nasa.gov/citations/19790013340
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