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Pass seaice_melt field through ice-ocean coupler #145

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Pass seaice_melt field through ice-ocean coupler #145

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32 changes: 22 additions & 10 deletions ice_ocean_flux_exchange.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -142,8 +142,9 @@ subroutine ice_ocean_flux_exchange_init(Time, Ice, Ocean, Ocean_state, ice_ocean
allocate( ice_ocean_boundary%sw_flux_vis_dif (is:ie,js:je) ) ; ice_ocean_boundary%sw_flux_vis_dif = 0.0
allocate( ice_ocean_boundary%sw_flux_nir_dir (is:ie,js:je) ) ; ice_ocean_boundary%sw_flux_nir_dir = 0.0
allocate( ice_ocean_boundary%sw_flux_nir_dif (is:ie,js:je) ) ; ice_ocean_boundary%sw_flux_nir_dif = 0.0
allocate( ice_ocean_boundary%lprec (is:ie,js:je) ) ; ice_ocean_boundary%lprec = 0.0
allocate( ice_ocean_boundary%fprec (is:ie,js:je) ) ; ice_ocean_boundary%fprec = 0.0
allocate( ice_ocean_boundary%lprec (is:ie,js:je) ) ; ice_ocean_boundary%lprec = 0.0
allocate( ice_ocean_boundary%fprec (is:ie,js:je) ) ; ice_ocean_boundary%fprec = 0.0
allocate( ice_ocean_boundary%seaice_melt (is:ie,js:je) ) ; ice_ocean_boundary%seaice_melt = 0.0
allocate( ice_ocean_boundary%runoff (is:ie,js:je) ) ; ice_ocean_boundary%runoff = 0.0
allocate( ice_ocean_boundary%calving (is:ie,js:je) ) ; ice_ocean_boundary%calving = 0.0
allocate( ice_ocean_boundary%runoff_hflx (is:ie,js:je) ) ; ice_ocean_boundary%runoff_hflx = 0.0
Expand Down Expand Up @@ -231,6 +232,7 @@ end subroutine ice_ocean_flux_exchange_init
!! time step (Kg/m2)
!! fprec = mass of frozen precipitation since last
!! time step (Kg/m2)
!! seaice_melt = mass of sea ice melt since last time step (Kg/m2)
!! runoff = mass of runoff since last time step (Kg/m2)
!! runoff = mass of calving since last time step (Kg/m2)
!! p_surf = surface pressure (Pa)
Expand Down Expand Up @@ -299,6 +301,9 @@ subroutine flux_ice_to_ocean ( Time, Ice, Ocean, Ice_Ocean_Boundary )
if(ASSOCIATED(Ice_Ocean_Boundary%fprec) ) call flux_ice_to_ocean_redistribute( Ice, Ocean, &
Ice%fprec, Ice_Ocean_Boundary%fprec, Ice_Ocean_Boundary%xtype, do_area_weighted_flux )

if(ASSOCIATED(Ice_Ocean_Boundary%seaice_melt) ) call flux_ice_to_ocean_redistribute( Ice, Ocean, &
Ice%seaice_melt, Ice_Ocean_Boundary%seaice_melt, Ice_Ocean_Boundary%xtype, do_area_weighted_flux )

if(ASSOCIATED(Ice_Ocean_Boundary%runoff) ) call flux_ice_to_ocean_redistribute( Ice, Ocean, &
Ice%runoff, Ice_Ocean_Boundary%runoff, Ice_Ocean_Boundary%xtype, do_area_weighted_flux )

Expand Down Expand Up @@ -347,8 +352,9 @@ subroutine flux_ice_to_ocean_finish ( Time, Ice_Ocean_Boundary )
call data_override('OCN', 'sw_flux_nir_dif', Ice_Ocean_Boundary%sw_flux_nir_dif, Time )
call data_override('OCN', 'sw_flux_vis_dir', Ice_Ocean_Boundary%sw_flux_vis_dir, Time )
call data_override('OCN', 'sw_flux_vis_dif', Ice_Ocean_Boundary%sw_flux_vis_dif, Time )
call data_override('OCN', 'lprec', Ice_Ocean_Boundary%lprec , Time )
call data_override('OCN', 'fprec', Ice_Ocean_Boundary%fprec , Time )
call data_override('OCN', 'lprec', Ice_Ocean_Boundary%lprec , Time )
call data_override('OCN', 'fprec', Ice_Ocean_Boundary%fprec , Time )
call data_override('OCN', 'seaice_melt', Ice_Ocean_Boundary%seaice_melt, Time )
call data_override('OCN', 'runoff', Ice_Ocean_Boundary%runoff , Time )
call data_override('OCN', 'calving', Ice_Ocean_Boundary%calving , Time )
call data_override('OCN', 'runoff_hflx', Ice_Ocean_Boundary%runoff_hflx , Time )
Expand Down Expand Up @@ -506,12 +512,12 @@ subroutine flux_ice_to_ocean_stocks(Ice)

! fluxes from ice -> ocean, integrate over surface and in time

! precip - evap
from_dq = Dt_cpl * SUM( Ice%area * (Ice%lprec+Ice%fprec-Ice%flux_q) )
! precip + sea ice melt - evap
from_dq = Dt_cpl * SUM( Ice%area * (Ice%lprec+Ice%seaice_melt+Ice%fprec-Ice%flux_q) )
Ice_stock(ISTOCK_WATER)%dq(ISTOCK_BOTTOM) = Ice_stock(ISTOCK_WATER)%dq(ISTOCK_BOTTOM) - from_dq
Ocn_stock(ISTOCK_WATER)%dq(ISTOCK_TOP ) = Ocn_stock(ISTOCK_WATER)%dq(ISTOCK_TOP ) + from_dq

! river
! rivers + icebergs
from_dq = Dt_cpl * SUM( Ice%area * (Ice%runoff + Ice%calving) )
Ice_stock(ISTOCK_WATER)%dq(ISTOCK_BOTTOM) = Ice_stock(ISTOCK_WATER)%dq(ISTOCK_BOTTOM) - from_dq
Ocn_stock(ISTOCK_WATER)%dq(ISTOCK_SIDE ) = Ocn_stock(ISTOCK_WATER)%dq(ISTOCK_SIDE ) + from_dq
Expand All @@ -527,7 +533,7 @@ subroutine flux_ice_to_ocean_stocks(Ice)
! heat carried by river + pme (assuming reference temperature of 0 degC and river/pme temp = surface temp)
! Note: it does not matter what the ref temperature is but it must be consistent with that in OCN and ICE
from_dq = Dt_cpl * SUM( Ice%area * ( &
& (Ice%lprec+Ice%fprec-Ice%flux_q + Ice%runoff+Ice%calving)*CP_OCEAN*Ice%SST_C(:,:)) )
& (Ice%lprec+Ice%seaice_melt+Ice%fprec-Ice%flux_q + Ice%runoff+Ice%calving)*CP_OCEAN*Ice%SST_C(:,:)) )
Ice_stock(ISTOCK_HEAT)%dq(ISTOCK_BOTTOM) = Ice_stock(ISTOCK_HEAT)%dq(ISTOCK_BOTTOM) - from_dq
Ocn_stock(ISTOCK_HEAT)%dq(ISTOCK_SIDE ) = Ocn_stock(ISTOCK_HEAT)%dq(ISTOCK_SIDE ) + from_dq

Expand Down Expand Up @@ -575,7 +581,10 @@ subroutine flux_ocean_from_ice_stocks(ocean_state,Ocean,Ice_Ocean_boundary)
! fluxes from ice -> ocean, integrate over surface and in time

! precip - evap
from_dq = SUM( ocean_cell_area * wet * (Ice_Ocean_Boundary%lprec+Ice_Ocean_Boundary%fprec-Ice_Ocean_Boundary%q_flux) )
from_dq = SUM( ocean_cell_area * wet * (Ice_Ocean_Boundary%lprec &
+Ice_Ocean_Boundary%fprec &
+Ice_Ocean_Boundary%seaice_melt &
-Ice_Ocean_Boundary%q_flux) )
Ocn_stock(ISTOCK_WATER)%dq_IN(ISTOCK_TOP ) = Ocn_stock(ISTOCK_WATER)%dq_IN(ISTOCK_TOP ) + from_dq * Dt_cpl

from_dq = SUM( ocean_cell_area * wet * (Ice_Ocean_Boundary%runoff+Ice_Ocean_Boundary%calving) )
Expand All @@ -595,7 +604,10 @@ subroutine flux_ocean_from_ice_stocks(ocean_state,Ocean,Ice_Ocean_boundary)
! Note: it does not matter what the ref temperature is but it must be consistent with that in OCN and ICE

from_dq = SUM( ocean_cell_area * wet * cp_ocn *&
((Ice_Ocean_Boundary%lprec+Ice_Ocean_Boundary%fprec-Ice_Ocean_Boundary%q_flux)*t_pme &
((Ice_Ocean_Boundary%lprec &
+Ice_Ocean_Boundary%fprec &
+Ice_Ocean_Boundary%seaice_melt &
-Ice_Ocean_Boundary%q_flux)*t_pme &
+Ice_Ocean_Boundary%calving * t_calving &
+Ice_Ocean_Boundary%runoff * t_runoff ))

Expand Down