diff --git a/src/SIS_tracer_advect.F90 b/src/SIS_tracer_advect.F90
index ecb7769..4a1a625 100644
--- a/src/SIS_tracer_advect.F90
+++ b/src/SIS_tracer_advect.F90
@@ -1849,10 +1849,11 @@ end subroutine advect_tracers_thicker
 
 !> Initialze allocate the control structure for the SIS_tracer_advect module
 !! and set its parameters
-subroutine SIS_tracer_advect_init(Time, G, param_file, diag, CS, scheme)
+subroutine SIS_tracer_advect_init(Time, G, US, param_file, diag, CS, scheme)
   type(time_type),     target, intent(in)    :: Time !< The sea-ice model's clock,
                                                      !! set with the current model time.
   type(SIS_hor_grid_type),     intent(in)    :: G    !< The horizontal grid type
+  type(unit_scale_type),       intent(in)    :: US  !< A structure with unit conversion factors
   type(param_file_type),       intent(in)    :: param_file !< A structure to parse for run-time parameters
   type(SIS_diag_ctrl), target, intent(inout) :: diag !< A structure that is used to regulate diagnostic output
   type(SIS_tracer_advect_CS),  pointer       :: CS   !< The control structure returned by a previous
@@ -1881,8 +1882,8 @@ subroutine SIS_tracer_advect_init(Time, G, param_file, diag, CS, scheme)
   call get_param(param_file, mdl, "DT_ICE_DYNAMICS", CS%dt, &
                  "The time step used for the slow ice dynamics, including "//&
                  "stepping the continuity equation and interactions between "//&
-                 "the ice mass field and velocities.", units="s", &
-                 default=-1.0, do_not_log=.true.)
+                 "the ice mass field and velocities.", &
+                 units="s", default=-1.0, scale=US%s_to_T, do_not_log=.true.)
   call get_param(param_file, mdl, "DEBUG", debug, default=.false.)
   call get_param(param_file, mdl, "DEBUG_SLOW_ICE", CS%debug, &
                  "If true, write out verbose debugging data on the slow ice PEs.", &
diff --git a/src/SIS_transport.F90 b/src/SIS_transport.F90
index d928b34..25bec8e 100644
--- a/src/SIS_transport.F90
+++ b/src/SIS_transport.F90
@@ -196,7 +196,7 @@ subroutine ice_cat_transport(CAS, TrReg, dt_slow, nsteps, G, US, IG, CS, uc, vc,
                                     h3=CAS%m_pond, uh3=uh_pond, vh3=vh_pond)
     else
       call continuity(uc, vc, mca0_ice, CAS%m_ice, uh_ice, vh_ice, dt_adv, &
-                      G, US, IG, CS%continuity_CSp, use_h_neg=.true.)  ! this is hard-coded here to preserve previous answers
+                      G, US, IG, CS%continuity_CSp, use_h_neg=.true.)  ! Hard-coded here to preserve previous answers
       call continuity(uc, vc, mca0_snow, CAS%m_snow, uh_snow, vh_snow, dt_adv, &
                       G, US, IG, CS%continuity_CSp, masking_uh=uh_ice, masking_vh=vh_ice, use_h_neg=h_neg_fix)
       call continuity(uc, vc, mca0_pond, CAS%m_pond, uh_pond, vh_pond, dt_adv, &
@@ -1243,13 +1243,13 @@ subroutine SIS_transport_init(Time, G, IG, US, param_file, diag, CS, continuity_
 
   call SIS_continuity_init(Time, G, US, param_file, diag, CS%continuity_CSp, &
                            CS_cvr=cover_trans_CSp)
-  call SIS_tracer_advect_init(Time, G, param_file, diag, CS%SIS_tr_adv_CSp)
+  call SIS_tracer_advect_init(Time, G, US, param_file, diag, CS%SIS_tr_adv_CSp)
   if (CS%do_ridging) &
       call ice_ridging_init(G, IG, param_file, CS%ice_ridging_CSp, US)
 
   if (present(continuity_CSp)) continuity_CSp => CS%continuity_CSp
 
-  call SIS_tracer_advect_init(Time, G, param_file, diag, CS%SIS_thick_adv_CSp, scheme=scheme)
+  call SIS_tracer_advect_init(Time, G, US, param_file, diag, CS%SIS_thick_adv_CSp, scheme=scheme)
 
   CS%id_ix_trans = register_diag_field('ice_model', 'IX_TRANS', diag%axesCu1, Time, &
                'x-direction ice transport', 'kg/s', conversion=US%RZ_T_to_kg_m2s*US%L_to_m**2, &