MODULE st2D_fabm
   !!======================================================================
   !!                      ***  MODULE  trc  ***
   !! Passive tracers   :  module for tracers defined
   !!======================================================================
#if defined key_top
   !!----------------------------------------------------------------------
   !!   'key_top'                                                TOP models
   !!----------------------------------------------------------------------
   USE par_oce

   IMPLICIT NONE
   PUBLIC
   !! passive tracers fields (before,now,after)
   !! --------------------------------------------------
   REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:)         ::  fabm_st2Dn           !: 2D state concentration for now time step
   REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:)         ::  fabm_st2Da           !: 2D state concentration for next time step
   REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:)         ::  fabm_st2Db           !: 2D state concentration for before time step
#else
   !!----------------------------------------------------------------------
   !!  Empty module :                                     No passive tracer
   !!----------------------------------------------------------------------
#endif

   !!======================================================================
END MODULE st2d_fabm