Lunar rotational dissipation in solid body and core

Details Lunar rotational dissipation in solid body and core Lunar rotational dissipation in solid body and core

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1555w&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 555.

Statistics

Computation

Lunar Core, Laser Range Finders, Lunar Rotation, Liquid-Solid Interfaces, Lunar Mantle, Angular Velocity, Mathematical Models, Equations Of Motion, Libration

Scientific paper

Analyses of Lunar Laser Ranging (LLR) observations of the moon's 3D rotation (physical librations) indicates that the dissipation acting on lunar rotation is surprisingly large for a period of one month. The LLR computations for dissipation have been based on a solid-body tidal dissipation model. An additional model is now implemented which allows for dissipation at a liquid-core/solid-mantle interface. Also, for the solid-body tides, the dependence of dissipation on period is explored. Tidal dissipation at one year is weakly detected, and roughly half of the monthly dissipation could be due to turbulent core/mantle interaction (core radius = 300 km).

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