Hydromagnetic waves and modes in the Earth's core, influence of stratification and mantle conductivity
presentation
posted on 2016-06-07, 07:20 authored by Nathanael SchaefferNathanael Schaeffer, Dominique Jault, Jérémie VidalWe show two phenomena associated with the dynamics of the Earth's core:
1) Torsional Alfvén wave reflection at the core equator is controlled by the conductivity of the lowermost mantle
2) Penetration of Rossby modes into a stably stratified layer is mostly controlled by its phase speed.
1) Torsional Alfvén wave reflection at the core equator is controlled by the conductivity of the lowermost mantle
2) Penetration of Rossby modes into a stably stratified layer is mostly controlled by its phase speed.
