!-----------------------------------------------------------------------
&nambbc   !   bottom boundary condition (on temperature only)                 
!-----------------------------------------------------------------------
!  "key_trabbc"               ! Activate geothermal forcing (bbc)
   ngeo_flux =  2             !  = 0 no geothermal heat flux
   !                          !  = 1 constant geothermal heat flux
   !                          !  = 2 variable geothermal heat flux 
   !                          !      (read in geothermal_heating.nc in mW/m2) 
   ngeo_flux_const = 86.4e-3  !  Constant value of geothermal heat flux (W/m2)
/