





Symbol 
Units 
Definition 









Magnetic field 



Specific heat per unit mass at constant pressure 



Specific heat per unit mass at constant volume 



Viscous stress tensor with elements [Equation (44)] 



Strain rate tensor 



Energy flux due to radiative diffusion [Equation (55)] 






Flux term for maintenance of the meridional circulation [Equations (15)(80)] 



Gravitational acceleration 



Temperature scale height: 



Current density [Equation (46)] 



Solar luminosity: 



Angular momentum per unit mass 

, 

Reference and perturbation pressure 



Solar radius: 



Radial location of the center of the tachocline: (Section 3.2) 

, 

Specific entropy per unit mass for the reference state and perturbation 


… 
Adiabatic exponent 



Tachocline thickness 


… 
Tachocline aspect ratio 


… 
Perturbation parameter [see Equation (35)] 

, 

Reference and perturbation temperature 



Fluid velocity relative to the rotating reference frame 

, 

Reference and perturbation density 



Radiative thermal diffusion 



Distance from the rotation axis (radius in cylindrical coordinates): 



Kinematic viscosity attributed either to molecular diffusion or to unresolved motions in a numerical model 



Meridional circulation streamfunction [Equation (13) 



Fluid vorticity relative to the rotating coordinate system 



Angular velocity of the rotating reference frame: 



Angular velocity: 



Curl of the axisymmetric mass flux in the meridional plane [Equation (12)] 





Unless otherwise noted.


and may in general vary with space and time but in this paper
and in many other practical applications, only their radial dependence is
taken into account.







http://www.livingreviews.org/lrsp20051 
© Max Planck Society and the author(s)
Problems/comments to 