[CIG-LONG] Material parameters: alpha, beta?

[Walter Landry]

Jean Liu <jeanpaulyn.liu at utoronto.ca> wrote:
> Hi!
> 
> I was wondering if anyone knew what the material parameters alpha and  
> beta represent?

From Appendix A.5 in the manual

  For each material, you can specify a density, a coefficient of
  thermal expansivity (α), and a thermal diffusivity.

There is no beta.  Where did you see it?

Cheers,
Walter Landry
walter at geodynamics.org