English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The aim of this letter is to discuss the virtual identity of two recent tidaltheories: the creep tide theory of Ferraz-Mello (Cel. Mech. Dyn. Astron. 116,109, 2013) and the Maxwell model developed by Correia et al. (Astron.Astrophys. 571, A50, 2014). It includes the discussion of the basic equationsof the theories, which, in both cases, include an elastic and an anelasticcomponent, and shows that the basic equations of the two theories areequivalent and differ by only a numerical factor in the anelastic tide. It alsoincludes a discussion of the lags: the lag of the full tide (geodetic),dominated by the elastic component, and the phase of the anelastic tide. Inrotating rocky bodies not trapped in a spin-orbit resonance (e.g., the Earth)the geodetic lag is close to zero and the phase of the semi-diurnal argument inthe anelastic tide is close to 90 degrees. The results obtained from combiningtidal solutions from satellite tracking data and from Topex/Poseidon satellitealtimeter data, by Ray et al., are extended to determine the phase of thesemi-diurnal argument in the Earth's anelastic tide as sigma_0=89.80 \pm 0.05degrees.

The small and large lags of the elastic and anelastic tides. The virtual identity of two rheophysical theories