subsection Initial temperature model
  set Model name = S40RTS perturbation

  subsection S40RTS perturbation
    set Data directory                    = $ASPECT_SOURCE_DIR/data/initial-temperature/S40RTS/
    set Initial condition file name       = S20RTS.sph
    set Spline knots depth file name      = Spline_knots.txt
    set Remove degree 0 from perturbation = false
    set Vs to density scaling             = 0.15
    set Thermal expansion coefficient in initial temperature scaling = 3e-5
    set Reference temperature             = 1600
  end
end
