!-----------------------------------------------------------------------
&nam_traldf   !   lateral diffusion scheme for tracer 
!-----------------------------------------------------------------------
                                 !  Type of the operator : 
   ln_traldf_lap    =  .true.    !     laplacian operator        
   ln_traldf_bilap  =  .false.   !     bilaplacian operator      
                                 !  Direction of action  :
   ln_traldf_level  =  .false.   !     iso-level                  
   ln_traldf_hor    =  .false.   !     horizontal  (+ "key_ldfslp" if ln_sco=T)
   ln_traldf_iso    =  .true.    !     iso-neutral (+ "key_ldfslp")
                                 !  Coefficient
   !  "key_ldftra_c1d"           !     Aht = F(k)
   !  "key_ldftra_c2d"           !     Aht = F(i,j)
   !  "key_ldftra_c3d"           !     Aht = F(i,j,k)
   aht0    =  2000.              !     lateral eddy diffusivity coef. (m2/s)
   ahtb0   =     0.              !     background coef. for isopycnal diffusion (m2/s)
   aeiv0   =  2000.              !     eddy induced velocity coefficient (m2/s)  
   !                             !     (+ "key_traldf_eiv")
/