!-----------------------------------------------------------------------
&namdyn_adv    !   formulation of the momentum advection
!-----------------------------------------------------------------------
   ln_dynadv_vec = .true.  !  vector form (T) or flux form (F)  
   ln_dynadv_cen2= .false. !  flux form - 2nd order centered scheme
   ln_dynadv_ubs = .false. !  flux form - 3rd order UBS      scheme 
/