!-----------------------------------------------------------------------
&namtrc_adv      !   advection scheme for passive tracer                (default: NO selection)
!-----------------------------------------------------------------------
   ln_trcadv_OFF =  .false.  !  No passive tracer advection
   ln_trcadv_cen =  .false.  !  2nd order centered scheme
      nn_cen_h   =  4               !  =2/4, horizontal 2nd order CEN / 4th order CEN
      nn_cen_v   =  4               !  =2/4, vertical   2nd order CEN / 4th order COMPACT
   ln_trcadv_fct =  .false.  !  FCT scheme
      nn_fct_h   =  2               !  =2/4, horizontal 2nd / 4th order 
      nn_fct_v   =  2               !  =2/4, vertical   2nd / COMPACT 4th order 
   ln_trcadv_mus =  .false.  !  MUSCL scheme
      ln_mus_ups =  .false.         !  use upstream scheme near river mouths
   ln_trcadv_ubs =  .false.  !  UBS scheme
      nn_ubs_v   =  2               !  =2  , vertical 2nd order FCT
   ln_trcadv_qck =  .false.  !  QUICKEST scheme
/