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Separating sea ice melt/formation from liquid precipitation field #214

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Separating sea ice melt/formation from liquid precipitation field #214

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1c8dc7e
Attempt at separating sea ice melt/formation from liquid precipitation
Aug 14, 2024
ec559ba
Added CMOR diagnostic for sea ice melt
Aug 15, 2024
5ecae71
Reset IOF%seaice_melt to zero every timestep just like old net_melt
Dec 11, 2024
49a2829
Simpler way of resetting seaice_melt to zero
Dec 17, 2024
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33 changes: 13 additions & 20 deletions src/SIS_slow_thermo.F90
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Expand Up @@ -573,11 +573,8 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)
tmp2d, & ! A temporary array for mass balance diagnostics [R Z yr-1 ~> kg m-2 yr-1]
qflx_lim_ice, & ! Ice limiting heat flux [Q R Z T-1 ~> W m-2]
qflx_res_ice, & ! Ice restoring heat flux [Q R Z T-1 ~> W m-2]
cool_nudge, & ! A heat flux out of the sea ice that
cool_nudge ! A heat flux out of the sea ice that
! acts to create sea-ice [Q R Z T-1 ~> W m-2].
net_melt ! The net mass flux from the ice and snow into the
! ocean due to melting and freezing integrated
! across all categories [R Z T-1 ~> kg m-2 s-1].
real, dimension(SZI_(G),SZJ_(G),1:IG%CatIce) :: &
heat_in, & ! The input heat [Q R Z ~> J m-2]
enth_prev, & ! The previous column integrated enthalpy by category [Q R Z ~> J m-2]
Expand Down Expand Up @@ -818,7 +815,7 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)

call cpu_clock_begin(iceClock5)

snow_to_ice(:,:,:) = 0.0 ; net_melt(:,:) = 0.0
snow_to_ice(:,:,:) = 0.0 ;
bsnk(:,:) = 0.0
salt_change(:,:) = 0.0
h2o_change(:,:) = 0.0
Expand Down Expand Up @@ -857,6 +854,9 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)
IOF%lprec_ocn_top(i,j) = IOF%lprec_ocn_top(i,j) + IST%part_size(i,j,k) * FIA%lprec_top(i,j,k)
enddo ; enddo ; enddo

! Reset sea ice melt rate to zero
IOF%seaice_melt(:,:) = 0.

! Add fluxes of snow and other properties to the ocean due to recent ridging or drifting events.
if (allocated(IST%snow_to_ocn)) then
!$OMP do
Expand All @@ -876,7 +876,7 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)

!$OMP parallel do default(none) shared(isc,iec,jsc,jec,ncat,G,US,IST,S_col0,NkIce,S_col,dt_slow, &
!$OMP snow_to_ice,heat_in,I_NK,enth_prev,enth_mass_in_col,bsnk, &
!$OMP Idt_slow,salt_change,net_melt,LatHtFus,LatHtVap,IG,CS,OSS, &
!$OMP Idt_slow,salt_change,LatHtFus,LatHtVap,IG,CS,OSS, &
!$OMP FIA,IOF,npassive,nb) &
!$OMP private(mass_prev,enthalpy,enthalpy_ocean,Salin, &
!$OMP heat_to_ocn,h2o_ice_to_ocn,h2o_ocn_to_ice, &
Expand Down Expand Up @@ -1010,7 +1010,7 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)
enddo
IOF%flux_sw_ocn(i,j,VIS_DIF) = IOF%flux_sw_ocn(i,j,VIS_DIF) + IST%part_size(i,j,k) * &
(sw_tot * FIA%sw_abs_ocn(i,j,k))
net_melt(i,j) = net_melt(i,j) + IST%part_size(i,j,k) * &
IOF%seaice_melt(i,j) = IOF%seaice_melt(i,j) + IST%part_size(i,j,k) * &
((h2o_ice_to_ocn-h2o_ocn_to_ice)*Idt_slow)
bsnk(i,j) = bsnk(i,j) - IST%part_size(i,j,k)*bablt*Idt_slow ! bot. melt. ablation

Expand All @@ -1019,7 +1019,7 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)

!$OMP parallel do default(none) shared(isc,iec,jsc,jec,ncat,npassive,G,US,IG,IST,S_col0,NkIce, &
!$OMP S_col,dt_slow,snow_to_ice,heat_in,I_NK,enth_mass_in_col, &
!$OMP enth_prev,Idt_slow,bsnk,salt_change,net_melt,LatHtFus, &
!$OMP enth_prev,Idt_slow,bsnk,salt_change,LatHtFus, &
!$OMP FIA,CS,OSS,IOF) &
!$OMP private(mass_prev,enthalpy,enthalpy_ocean,Salin,heat_to_ocn, &
!$OMP h2o_ice_to_ocn,h2o_ocn_to_ice,evap_from_ocn,salt_to_ice, &
Expand Down Expand Up @@ -1156,7 +1156,7 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)
! IST%part_size(i,j,k) * enth_ocn_to_ice
IOF%Enth_Mass_in_ocn(i,j) = IOF%Enth_Mass_in_ocn(i,j) + &
IST%part_size(i,j,k) * (h2o_ocn_to_ice * enthalpy_ocean)
net_melt(i,j) = net_melt(i,j) - &
IOF%seaice_melt(i,j) = IOF%seaice_melt(i,j) - &
(h2o_ocn_to_ice * IST%part_size(i,j,k)) * Idt_slow

if (CS%column_check) then
Expand Down Expand Up @@ -1222,7 +1222,7 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)
IST%mH_ice(i,j,k) = frac_keep*IST%mH_ice(i,j,k)
IST%mH_snow(i,j,k) = frac_keep*IST%mH_snow(i,j,k)
enddo
net_melt(i,j) = net_melt(i,j) + h2o_ice_to_ocn * Idt_slow
IOF%seaice_melt(i,j) = IOF%seaice_melt(i,j) + h2o_ice_to_ocn * Idt_slow
qflx_lim_ice(i,j) = enth_to_melt * Idt_slow
IOF%Enth_Mass_out_ocn(i,j) = IOF%Enth_Mass_out_ocn(i,j) - enth_ice_to_ocn
if (CS%ice_rel_salin > 0.0) then
Expand Down Expand Up @@ -1322,7 +1322,7 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)

! With transmuted ice, the ice is non-conservatively changed to match the ocean properties.
IOF%flux_salt(i,j) = IOF%flux_salt(i,j) + salt_to_ocn * (0.001*Idt_slow)
net_melt(i,j) = net_melt(i,j) + water_to_ocn * Idt_slow ! This goes to IOF%lprec_ocn_top.
IOF%seaice_melt(i,j) = IOF%seaice_melt(i,j) + water_to_ocn * Idt_slow
IOF%Enth_mass_out_ocn(i,j) = IOF%Enth_mass_out_ocn(i,j) + heat_to_ocn

! With transmuted ice, the imbalances are stored to close the heat and salt budgets.
Expand Down Expand Up @@ -1361,20 +1361,14 @@ subroutine SIS2_thermodynamics(IST, dt_slow, CS, OSS, FIA, IOF, G, US, IG)
scale=US%RZ_T_to_kg_m2s*Idt_slow)
if (CS%id_qflim>0) call post_data(CS%id_qflim, qflx_lim_ice, CS%diag)
if (CS%id_qfres>0) call post_data(CS%id_qfres, qflx_res_ice, CS%diag)
if (CS%id_net_melt>0) call post_data(CS%id_net_melt, net_melt, CS%diag)
if (CS%id_CMOR_melt>0) call post_data(CS%id_CMOR_melt, net_melt, CS%diag)
if (CS%id_net_melt>0) call post_data(CS%id_net_melt, IOF%seaice_melt, CS%diag)
if (CS%id_CMOR_melt>0) call post_data(CS%id_CMOR_melt, IOF%seaice_melt, CS%diag)

if (coupler_type_initialized(IOF%tr_flux_ocn_top)) &
call coupler_type_send_data(IOF%tr_flux_ocn_top, CS%Time)

call disable_SIS_averaging(CS%diag)

! Combine the liquid precipitation with the net melt of ice and snow for
! passing to the ocean. These may later be kept separate.
do j=jsc,jec ; do i=isc,iec
IOF%lprec_ocn_top(i,j) = IOF%lprec_ocn_top(i,j) + net_melt(i,j)
enddo ; enddo

! Make sure TrLay is no longer allocated
if(allocated(TrLay)) deallocate(TrLay)
end subroutine SIS2_thermodynamics
Expand Down Expand Up @@ -1562,7 +1556,6 @@ subroutine SIS_slow_thermo_init(Time, G, US, IG, param_file, diag, CS, tracer_fl
CS%id_CMOR_melt = register_diag_field('ice_model','fsitherm' ,diag%axesT1, Time, &
'water_flux_into_sea_water_due_to_sea_ice_thermodynamics', &
'kg m-2 s-1', conversion=US%RZ_T_to_kg_m2s, missing_value=missing)

if (CS%do_ice_restore) then
CS%id_qfres = register_diag_field('ice_model', 'QFLX_RESTORE_ICE', diag%axesT1, Time, &
'Ice Restoring heat flux', 'W/m^2', conversion=US%QRZ_T_to_W_m2, missing_value=missing)
Expand Down
1 change: 1 addition & 0 deletions src/SIS_sum_output.F90
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Expand Up @@ -759,6 +759,7 @@ subroutine accumulate_bottom_input(IST, OSS, FIA, IOF, dt, G, US, IG, CS)
do j=jsc,jec ; do i=isc,iec
CS%water_in_col(i,j) = CS%water_in_col(i,j) - dt * &
( ((FIA%runoff(i,j) + FIA%calving(i,j)) + &
IOF%seaice_melt(i,j) + &
(IOF%lprec_ocn_top(i,j) + IOF%fprec_ocn_top(i,j))) - IOF%evap_ocn_top(i,j) )

Flux_SW = 0.0
Expand Down
5 changes: 4 additions & 1 deletion src/SIS_types.F90
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Expand Up @@ -358,6 +358,7 @@ module SIS_types
flux_lh_ocn_top, & !< The upward flux of latent heat at the ocean surface [Q R Z T-1 ~> W m-2].
lprec_ocn_top, & !< The downward flux of liquid precipitation at the ocean surface [R Z T-1 ~> kg m-2 s-1].
fprec_ocn_top, & !< The downward flux of frozen precipitation at the ocean surface [R Z T-1 ~> kg m-2 s-1].
seaice_melt, & !< The downward freshwater flux into the ocean due to sea ice melt [R Z T-1 ~> kg m-2 s-1].
flux_u_ocn, & !< The flux of x-momentum into the ocean at locations given by
!! flux_uv_stagger [R Z L T-2 ~> Pa].
!! Note that regardless of the staggering, flux_u_ocn is allocated as though on an A-grid.
Expand Down Expand Up @@ -925,6 +926,7 @@ subroutine alloc_ice_ocean_flux(IOF, HI, do_stress_mag, do_iceberg_fields, do_tr
allocate(IOF%flux_sw_ocn(SZI_(HI), SZJ_(HI), NBANDS), source=0.0)
allocate(IOF%lprec_ocn_top(SZI_(HI), SZJ_(HI)), source=0.0)
allocate(IOF%fprec_ocn_top(SZI_(HI), SZJ_(HI)), source=0.0)
allocate(IOF%seaice_melt(SZI_(HI), SZJ_(HI)), source=0.0)
allocate(IOF%flux_u_ocn(SZI_(HI), SZJ_(HI)), source=0.0)
allocate(IOF%flux_v_ocn(SZI_(HI), SZJ_(HI)), source=0.0)
if (alloc_stress_mag) then
Expand Down Expand Up @@ -2171,7 +2173,7 @@ subroutine dealloc_ice_ocean_flux(IOF)
deallocate(IOF%flux_sh_ocn_top, IOF%evap_ocn_top)
deallocate(IOF%flux_lw_ocn_top, IOF%flux_lh_ocn_top)
deallocate(IOF%flux_sw_ocn)
deallocate(IOF%lprec_ocn_top, IOF%fprec_ocn_top, IOF%flux_salt)
deallocate(IOF%lprec_ocn_top, IOF%fprec_ocn_top, IOF%seaice_melt, IOF%flux_salt)
deallocate(IOF%flux_u_ocn, IOF%flux_v_ocn, IOF%pres_ocn_top, IOF%mass_ice_sn_p)
if (allocated(IOF%stress_mag)) deallocate(IOF%stress_mag)
if (allocated(IOF%transmutation_salt_flux)) deallocate(IOF%transmutation_salt_flux)
Expand Down Expand Up @@ -2218,6 +2220,7 @@ subroutine IOF_chksum(mesg, IOF, G, US, mech_fluxes, thermo_fluxes)
call hchksum(IOF%evap_ocn_top, trim(mesg)//" IOF%evap_ocn_top", G%HI, scale=US%RZ_T_to_kg_m2s)
call hchksum(IOF%lprec_ocn_top, trim(mesg)//" IOF%lprec_ocn_top", G%HI, scale=US%RZ_T_to_kg_m2s)
call hchksum(IOF%fprec_ocn_top, trim(mesg)//" IOF%fprec_ocn_top", G%HI, scale=US%RZ_T_to_kg_m2s)
call hchksum(IOF%seaice_melt, trim(mesg)//" IOF%seaice_melt", G%HI, scale=US%RZ_T_to_kg_m2s)
endif
if (do_mech) then
call hchksum(IOF%flux_u_ocn, trim(mesg)//" IOF%flux_u_ocn", G%HI, scale=US%RZ_T_to_kg_m2s*US%L_T_to_m_s)
Expand Down
10 changes: 6 additions & 4 deletions src/combined_ice_ocean_driver.F90
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Expand Up @@ -304,6 +304,7 @@ subroutine direct_flux_ice_to_IOB(Time, Ice, IOB, do_thermo)
if (ASSOCIATED(IOB%lw_flux)) IOB%lw_flux(:,:) = Ice%flux_lw(:,:)
if (ASSOCIATED(IOB%lprec)) IOB%lprec(:,:) = Ice%lprec(:,:)
if (ASSOCIATED(IOB%fprec)) IOB%fprec(:,:) = Ice%fprec(:,:)
if (ASSOCIATED(IOB%seaice_melt)) IOB%seaice_melt(:,:) = Ice%seaice_melt(:,:)
if (ASSOCIATED(IOB%runoff)) IOB%runoff(:,:) = Ice%runoff(:,:)
if (ASSOCIATED(IOB%calving)) IOB%calving(:,:) = Ice%calving
if (ASSOCIATED(IOB%runoff_hflx)) IOB%runoff_hflx(:,:) = Ice%runoff_hflx(:,:)
Expand All @@ -326,10 +327,11 @@ subroutine direct_flux_ice_to_IOB(Time, Ice, IOB, do_thermo)
call data_override('OCN', 'sw_flux_nir_dif', IOB%sw_flux_nir_dif, Time)
call data_override('OCN', 'sw_flux_vis_dir', IOB%sw_flux_vis_dir, Time)
call data_override('OCN', 'sw_flux_vis_dif', IOB%sw_flux_vis_dif, Time)
call data_override('OCN', 'lprec', IOB%lprec , Time)
call data_override('OCN', 'fprec', IOB%fprec , Time)
call data_override('OCN', 'runoff', IOB%runoff , Time)
call data_override('OCN', 'calving', IOB%calving , Time)
call data_override('OCN', 'lprec', IOB%lprec , Time)
call data_override('OCN', 'fprec', IOB%fprec , Time)
call data_override('OCN', 'seaice_melt', IOB%seaice_melt , Time)
call data_override('OCN', 'runoff', IOB%runoff , Time)
call data_override('OCN', 'calving', IOB%calving , Time)
call data_override('OCN', 'runoff_hflx', IOB%runoff_hflx , Time)
call data_override('OCN', 'calving_hflx', IOB%calving_hflx , Time)
endif
Expand Down
6 changes: 3 additions & 3 deletions src/ice_boundary_types.F90
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Expand Up @@ -37,9 +37,9 @@ module ice_boundary_types
frazil => NULL(), & !< The frazil heat rejected by the ocean [J m-2].
sea_level => NULL(), & !< The sea level after adjustment for any surface
!! pressure that the ocean allows to be expressed [m].
calving => NULL(), & !< The mass flux per unit area of the ice shelf to convert to
!!bergs [RZ_T ~> kg m-2 s-1].
calving_hflx => NULL() !< Calving heat flux [Q R Z T-1 ~> W m-2].
calving => NULL(), & !< The mass flux per unit area of the ice shelf to convert to
!!bergs [RZ_T ~> kg m-2 s-1].
calving_hflx => NULL() !< Calving heat flux [Q R Z T-1 ~> W m-2].
real, dimension(:,:,:), pointer :: data =>NULL() !< S collective field for "named" fields above
integer :: stagger = BGRID_NE !< A flag indicating how the velocities are staggered.
integer :: xtype !< A flag indicating the exchange type, which may be set to
Expand Down
4 changes: 3 additions & 1 deletion src/ice_model.F90
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Expand Up @@ -623,6 +623,7 @@ subroutine set_ocean_top_fluxes(Ice, IST, IOF, FIA, OSS, G, US, IG, sCS)
Ice%flux_sw_vis_dir(:,:) = 0.0 ; Ice%flux_sw_vis_dif(:,:) = 0.0
Ice%flux_lw(:,:) = 0.0 ; Ice%flux_lh(:,:) = 0.0
Ice%fprec(:,:) = 0.0 ; Ice%lprec(:,:) = 0.0
Ice%seaice_melt(:,:) = 0.0
call coupler_type_rescale_data(Ice%ocean_fluxes, 0.0)

i_off = LBOUND(Ice%flux_t,1) - G%isc ; j_off = LBOUND(Ice%flux_t,2) - G%jsc
Expand All @@ -640,6 +641,7 @@ subroutine set_ocean_top_fluxes(Ice, IST, IOF, FIA, OSS, G, US, IG, sCS)
Ice%flux_lh(i2,j2) = US%QRZ_T_to_W_m2*IOF%flux_lh_ocn_top(i,j)
Ice%fprec(i2,j2) = US%RZ_T_to_kg_m2s*IOF%fprec_ocn_top(i,j)
Ice%lprec(i2,j2) = US%RZ_T_to_kg_m2s*IOF%lprec_ocn_top(i,j)
Ice%seaice_melt(i2,j2) = US%RZ_T_to_kg_m2s*IOF%seaice_melt(i,j)
Ice%runoff(i2,j2) = US%RZ_T_to_kg_m2s*FIA%runoff(i,j)
Ice%calving(i2,j2) = US%RZ_T_to_kg_m2s*FIA%calving(i,j)
Ice%runoff_hflx(i2,j2) = US%QRZ_T_to_W_m2*FIA%runoff_hflx(i,j)
Expand All @@ -659,7 +661,7 @@ subroutine set_ocean_top_fluxes(Ice, IST, IOF, FIA, OSS, G, US, IG, sCS)
if (allocated(IOF%melt_nudge)) then
do j=jsc,jec ; do i=isc,iec
i2 = i+i_off ; j2 = j+j_off! Use these to correct for indexing differences.
Ice%lprec(i2,j2) = Ice%lprec(i2,j2) + US%RZ_T_to_kg_m2s*IOF%melt_nudge(i,j)
Ice%seaice_melt(i2,j2) = Ice%seaice_melt(i2,j2) + US%RZ_T_to_kg_m2s*IOF%melt_nudge(i,j)
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enddo ; enddo
endif

Expand Down
12 changes: 9 additions & 3 deletions src/ice_type.F90
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Expand Up @@ -97,9 +97,10 @@ module ice_type_mod
flux_sw_vis_dif => NULL(), & !< The diffuse visible shortwave heat flux into the ocean [W m-2].
flux_sw_nir_dir => NULL(), & !< The direct near-infrared heat flux into the ocean [W m-2].
flux_sw_nir_dif => NULL(), & !< The diffuse near-infrared heat flux into the ocean [W m-2].
flux_lh => NULL(), & !< The latent heat flux out of the ocean [W m-2].
lprec => NULL(), & !< The liquid precipitation flux into the ocean [kg m-2].
fprec => NULL(), & !< The frozen precipitation flux into the ocean [kg m-2].
flux_lh => NULL(), & !< The latent heat flux out of the ocean [W m-2].
lprec => NULL(), & !< The liquid precipitation flux into the ocean [kg m-2].
fprec => NULL(), & !< The frozen precipitation flux into the ocean [kg m-2].
seaice_melt => NULL(), & !< The sea ice meltwater flux into the ocean [kg m-2].
p_surf => NULL(), & !< The pressure at the ocean surface [Pa]. This may
!! or may not include atmospheric pressure.
runoff => NULL(), & !< Liquid runoff into the ocean [kg m-2].
Expand Down Expand Up @@ -198,6 +199,7 @@ subroutine ice_type_slow_reg_restarts(domain, CatIce, param_file, Ice, &
call safe_alloc_ptr(Ice%flux_lh, isc, iec, jsc, jec) !NI
call safe_alloc_ptr(Ice%lprec, isc, iec, jsc, jec)
call safe_alloc_ptr(Ice%fprec, isc, iec, jsc, jec)
call safe_alloc_ptr(Ice%seaice_melt, isc, iec, jsc, jec)
call safe_alloc_ptr(Ice%p_surf, isc, iec, jsc, jec)
call safe_alloc_ptr(Ice%runoff, isc, iec, jsc, jec)
call safe_alloc_ptr(Ice%calving, isc, iec, jsc, jec)
Expand Down Expand Up @@ -233,6 +235,7 @@ subroutine ice_type_slow_reg_restarts(domain, CatIce, param_file, Ice, &
call register_restart_field(Ice_restart, 'flux_lw', Ice%flux_lw)
call register_restart_field(Ice_restart, 'lprec', Ice%lprec)
call register_restart_field(Ice_restart, 'fprec', Ice%fprec)
call register_restart_field(Ice_restart, 'seaice_melt', Ice%seaice_melt)
call register_restart_field(Ice_restart, 'runoff', Ice%runoff)
call register_restart_field(Ice_restart, 'calving', Ice%calving)
call register_restart_field(Ice_restart, 'runoff_hflx', Ice%runoff_hflx, mandatory=.false.)
Expand Down Expand Up @@ -338,6 +341,7 @@ subroutine dealloc_Ice_arrays(Ice)
if (associated(Ice%flux_lh)) deallocate(Ice%flux_lh)
if (associated(Ice%lprec)) deallocate(Ice%lprec)
if (associated(Ice%fprec)) deallocate(Ice%fprec)
if (associated(Ice%seaice_melt)) deallocate(Ice%seaice_melt)
if (associated(Ice%p_surf)) deallocate(Ice%p_surf)
if (associated(Ice%runoff)) deallocate(Ice%runoff)
if (associated(Ice%calving)) deallocate(Ice%calving)
Expand Down Expand Up @@ -419,6 +423,7 @@ subroutine Ice_public_type_chksum(mesg, Ice, check_fast, check_slow, check_rough
call chksum(Ice%flux_lh, trim(mesg)//" Ice%flux_lh")
call chksum(Ice%lprec, trim(mesg)//" Ice%lprec")
call chksum(Ice%fprec, trim(mesg)//" Ice%fprec")
call chksum(Ice%seaice_melt, trim(mesg)//" Ice%seaice_melt")
call chksum(Ice%p_surf, trim(mesg)//" Ice%p_surf")
call chksum(Ice%calving, trim(mesg)//" Ice%calving")
call chksum(Ice%runoff, trim(mesg)//" Ice%runoff")
Expand Down Expand Up @@ -680,6 +685,7 @@ subroutine ice_data_type_chksum(mesg, timestep, Ice, init_call)
chks = SIS_chksum(Ice%flux_lh ) ; if (root) write(outunit,100) 'ice_data_type%flux_lh ', chks
chks = SIS_chksum(Ice%lprec ) ; if (root) write(outunit,100) 'ice_data_type%lprec ', chks
chks = SIS_chksum(Ice%fprec ) ; if (root) write(outunit,100) 'ice_data_type%fprec ', chks
chks = SIS_chksum(Ice%seaice_melt ) ; if (root) write(outunit,100) 'ice_data_type%seaice_melt ', chks
chks = SIS_chksum(Ice%p_surf ) ; if (root) write(outunit,100) 'ice_data_type%p_surf ', chks
chks = SIS_chksum(Ice%runoff ) ; if (root) write(outunit,100) 'ice_data_type%runoff ', chks
chks = SIS_chksum(Ice%calving ) ; if (root) write(outunit,100) 'ice_data_type%calving ', chks
Expand Down