Abstract
An estimate of the torque exerted by the solar wind on the Earth’s magnetic dipole may be obtained in the simple case in which the magnetosphere is approximated by a thin plane perfectly conducting sheet. The effect of the lateral containment of the dipole is studied using an analytic solution of a model magnetosphere, in a form suitable for the automatic computation of the torque components in a frame of reference rotating with the Earth.
The results obtained are used in conjunction with the computed solar excitation spectrum, which has characteristic peaks at 11 years and 6 months, to discuss the influence of solar activity on the Earth’s rotation. The application of this model to diurnal wobble is also considered.
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© 1970 D. Reidel Publishing Company, Dordrecht, Holland
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Jady, R.J. (1970). Solar activity and the Rotation of the Earth. In: Mansinha, L., Smylie, D.E., Beck, A.E. (eds) Earthquake Displacement Fields and the Rotation of the Earth. Astrophysics and Space Science Library, vol 20. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3308-4_11
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DOI: https://doi.org/10.1007/978-94-010-3308-4_11
Publisher Name: Springer, Dordrecht
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