diff --git a/src/parameterizations/vertical/MOM_set_diffusivity.F90 b/src/parameterizations/vertical/MOM_set_diffusivity.F90
index d15a364267..c6e0ed98c4 100644
--- a/src/parameterizations/vertical/MOM_set_diffusivity.F90
+++ b/src/parameterizations/vertical/MOM_set_diffusivity.F90
@@ -182,6 +182,7 @@ module MOM_set_diffusivity
   integer :: id_Kd_quad    = -1, id_Kd_itidal   = -1, id_Kd_Froude  = -1, id_Kd_slope = -1
   integer :: id_prof_leak  = -1, id_prof_quad   = -1, id_prof_itidal= -1
   integer :: id_prof_Froude= -1, id_prof_slope  = -1, id_bbl_thick = -1, id_kbbl = -1
+  integer :: id_Kd_Work_added
   !>@}
 
 end type set_diffusivity_CS
@@ -192,7 +193,8 @@ module MOM_set_diffusivity
     N2_3d     => NULL(), & !< squared buoyancy frequency at interfaces [T-2 ~> s-2]
     Kd_user   => NULL(), & !< user-added diffusivity at interfaces [H Z T-1 ~> m2 s-1 or kg m-1 s-1]
     Kd_BBL    => NULL(), & !< BBL diffusivity at interfaces [H Z T-1 ~> m2 s-1 or kg m-1 s-1]
-    Kd_work   => NULL(), & !< layer integrated work by diapycnal mixing [R Z3 T-3 ~> W m-2]
+    Kd_Work   => NULL(), & !< layer integrated work by diapycnal mixing [R Z3 T-3 ~> W m-2]
+    Kd_Work_added   => NULL(), & !< layer integrated work by added mixing [R Z3 T-3 ~> W m-2]
     maxTKE    => NULL(), & !< energy required to entrain to h_max [H Z2 T-3 ~> m3 s-3 or W m-2]
     Kd_bkgnd  => NULL(), & !< Background diffusivity at interfaces [H Z T-1 ~> m2 s-1 or kg m-1 s-1]
     Kv_bkgnd  => NULL(), & !< Viscosity from background diffusivity at interfaces [H Z T-1 ~> m2 s-1 or Pa s]
@@ -359,7 +361,8 @@ subroutine set_diffusivity(u, v, h, u_h, v_h, tv, fluxes, optics, visc, dt, Kd_i
 
   if (CS%id_N2 > 0) allocate(dd%N2_3d(isd:ied,jsd:jed,nz+1), source=0.0)
   if (CS%id_Kd_user > 0) allocate(dd%Kd_user(isd:ied,jsd:jed,nz+1), source=0.0)
-  if (CS%id_Kd_work > 0) allocate(dd%Kd_work(isd:ied,jsd:jed,nz), source=0.0)
+  if (CS%id_Kd_Work > 0) allocate(dd%Kd_Work(isd:ied,jsd:jed,nz), source=0.0)
+  if (CS%id_Kd_Work_added > 0) allocate(dd%Kd_Work_added(isd:ied,jsd:jed,nz), source=0.0)
   if (CS%id_maxTKE > 0) allocate(dd%maxTKE(isd:ied,jsd:jed,nz), source=0.0)
   if (CS%id_TKE_to_Kd > 0) allocate(dd%TKE_to_Kd(isd:ied,jsd:jed,nz), source=0.0)
   if ((CS%double_diffusion) .and. (CS%id_KT_extra > 0)) &
@@ -549,7 +552,7 @@ subroutine set_diffusivity(u, v, h, u_h, v_h, tv, fluxes, optics, visc, dt, Kd_i
       enddo ; enddo
     endif
 
-    if (CS%ML_radiation .or. CS%use_tidal_mixing .or. associated(dd%Kd_work)) then
+    if (CS%ML_radiation .or. CS%use_tidal_mixing .or. associated(dd%Kd_Work)) then
       call thickness_to_dz(h, tv, dz, j, G, GV)
     endif
 
@@ -662,7 +665,7 @@ subroutine set_diffusivity(u, v, h, u_h, v_h, tv, fluxes, optics, visc, dt, Kd_i
       enddo ; enddo
     endif
 
-    if (associated(dd%Kd_work)) then
+    if (associated(dd%Kd_Work)) then
       do k=1,nz ; do i=is,ie
         dd%Kd_Work(i,j,k) = GV%H_to_RZ * Kd_lay_2d(i,k) * N2_lay(i,k) * dz(i,k)  ! Watt m-2 = kg s-3
       enddo ; enddo
@@ -675,6 +678,12 @@ subroutine set_diffusivity(u, v, h, u_h, v_h, tv, fluxes, optics, visc, dt, Kd_i
       enddo ; enddo
     endif
 
+    if (associated(dd%Kd_Work_added)) then
+      do k=1,nz ; do i=is,ie
+        dd%Kd_Work_added(i,j,k) = GV%H_to_RZ * CS%Kd_add * N2_lay(i,k) * dz(i,k)  ! Watt m-2 = kg s-3
+      enddo ; enddo
+    endif
+
     ! Copy the 2-d slices into the 3-d array that is exported; this was done above for Kd_int.
     if (present(Kd_lay)) then ; do k=1,nz ; do i=is,ie
       Kd_lay(i,j,k) = Kd_lay_2d(i,k)
@@ -754,12 +763,13 @@ subroutine set_diffusivity(u, v, h, u_h, v_h, tv, fluxes, optics, visc, dt, Kd_i
   if (CS%use_tidal_mixing) &
     call post_tidal_diagnostics(G, GV, h, CS%tidal_mixing)
 
-  if (CS%id_N2 > 0)         call post_data(CS%id_N2,        dd%N2_3d,     CS%diag)
-  if (CS%id_Kd_Work > 0)    call post_data(CS%id_Kd_Work,   dd%Kd_Work,   CS%diag)
-  if (CS%id_maxTKE > 0)     call post_data(CS%id_maxTKE,    dd%maxTKE,    CS%diag)
-  if (CS%id_TKE_to_Kd > 0)  call post_data(CS%id_TKE_to_Kd, dd%TKE_to_Kd, CS%diag)
+  if (CS%id_N2 > 0)             call post_data(CS%id_N2,        dd%N2_3d,     CS%diag)
+  if (CS%id_Kd_Work > 0)        call post_data(CS%id_Kd_Work,   dd%Kd_Work,   CS%diag)
+  if (CS%id_Kd_Work_added > 0)  call post_data(CS%id_Kd_Work_added,   dd%Kd_Work_added,   CS%diag)
+  if (CS%id_maxTKE > 0)         call post_data(CS%id_maxTKE,    dd%maxTKE,    CS%diag)
+  if (CS%id_TKE_to_Kd > 0)      call post_data(CS%id_TKE_to_Kd, dd%TKE_to_Kd, CS%diag)
 
-  if (CS%id_Kd_user > 0)    call post_data(CS%id_Kd_user,   dd%Kd_user,   CS%diag)
+  if (CS%id_Kd_user > 0)        call post_data(CS%id_Kd_user,   dd%Kd_user,   CS%diag)
 
   ! double diffusive mixing
   if (CS%double_diffusion) then
@@ -773,7 +783,8 @@ subroutine set_diffusivity(u, v, h, u_h, v_h, tv, fluxes, optics, visc, dt, Kd_i
   if (CS%id_Kd_BBL > 0)   call post_data(CS%id_Kd_BBL, dd%Kd_BBL, CS%diag)
 
   if (associated(dd%N2_3d)) deallocate(dd%N2_3d)
-  if (associated(dd%Kd_work)) deallocate(dd%Kd_work)
+  if (associated(dd%Kd_Work)) deallocate(dd%Kd_Work)
+  if (associated(dd%Kd_Work_added)) deallocate(dd%Kd_Work_added)
   if (associated(dd%Kd_user)) deallocate(dd%Kd_user)
   if (associated(dd%maxTKE)) deallocate(dd%maxTKE)
   if (associated(dd%TKE_to_Kd)) deallocate(dd%TKE_to_Kd)
@@ -2517,6 +2528,8 @@ subroutine set_diffusivity_init(Time, G, GV, US, param_file, diag, CS, int_tide_
   if (CS%use_tidal_mixing) then
     CS%id_Kd_Work = register_diag_field('ocean_model', 'Kd_Work', diag%axesTL, Time, &
          'Work done by Diapycnal Mixing', 'W m-2', conversion=US%RZ3_T3_to_W_m2)
+    CS%id_Kd_Work_added = register_diag_field('ocean_model', 'Kd_Work_added', diag%axesTL, Time, &
+         'Work done by additional mixing Kd_add', 'W m-2', conversion=US%RZ3_T3_to_W_m2)
     CS%id_maxTKE = register_diag_field('ocean_model', 'maxTKE', diag%axesTL, Time, &
            'Maximum layer TKE', 'm3 s-3', conversion=(GV%H_to_m*US%Z_to_m**2*US%s_to_T**3))
     CS%id_TKE_to_Kd = register_diag_field('ocean_model', 'TKE_to_Kd', diag%axesTL, Time, &