Syllabus
Equations of geodynamo in Boussinesq and anelastic approximation. Anti-dynamo theorems.
Geostrophic and mangetostrophic approximation. Taylor's condition.
Nearly symmetric dynamos. MHD waves, Alfvén waves, MAC waves.
Torsional oscillations. Convection instabilities and Schwarzschild criteria for onset of convection.
Numerical models of geodynamo, solar dynamo, and planetary dynamos.
Annotation
Follow-up lecture to the NGEO080 presenting more details about the mechanism of generation of the magnetic fields of Earth, Sun, and planets.