Body tides on an elliptical, rotating, elastic and oceanless earth

Abstract

Summary. The Earth's deformation caused by the luni‐solar tidal force is defined as the ‘body tide’. We compute the effects of the Earth's rotation and elliptical stratification on the body tide for a number of modern elastic structural models. Rotation and ellipticity within the mantle are found to affect tidal observations by about 1 per cent. A consequence is an improved estimate for the fluid core resonance in the diurnal tidal band. Agreement between results for the different structural models is very good. As a result, the results computed here can be used to model the tidal effects of a globally averaged, oceanless, rotating, elliptical and elastic earth to an accuracy of at least one part in 300. Copyright © 1981, Wiley Blackwell. All rights reserved