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Initial modifications for standalone Icepack bgc capability #37

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Jun 12, 2024
Merged

Initial modifications for standalone Icepack bgc capability #37

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16 changes: 11 additions & 5 deletions columnphysics/icepack_algae.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -1879,11 +1879,15 @@ subroutine algal_dyn (dt, n_doc, n_dic, &
! Nutrient limitation
!-----------------------------------------------------------------------

Nit_lim(k) = Nitin/(Nitin + K_Nit(k))
if (Nitin + K_Nit(k) /= c0) then
Nit_lim(k) = Nitin/(Nitin + K_Nit(k))
endif
Am_lim(k) = c0
N_lim(k) = Nit_lim(k)
if (tr_bgc_Am) then
Am_lim(k) = Amin/(Amin + K_Am(k))
if (Amin + K_Am(k) /= c0) then
Am_lim(k) = Amin/(Amin + K_Am(k))
endif
N_lim(k) = min(c1, Nit_lim(k) + Am_lim(k))
endif
Sil_lim(k) = c1
Expand Down Expand Up @@ -1936,10 +1940,12 @@ subroutine algal_dyn (dt, n_doc, n_dic, &
U_Sil(k) = U_Sil_f(k)*U_Sil_tot
U_Fe(k) = U_Fe_f(k)*U_Fe_tot

grow_N(k) = (U_Nit(k) + U_Am(k))
if (R_Si2N(k) > c0) then
grow_N(k) = min(U_Sil(k)/R_Si2N(k),U_Nit(k) + U_Am(k), U_Fe(k)/R_Fe2N(k))
else
grow_N(k) = min(U_Nit(k) + U_Am(k),U_Fe(k)/R_Fe2N(k))
grow_N(k) = min(grow_N(k),U_Sil(k)/R_Si2N(k))
endif
if (R_Fe2N(k) /= c0) then
grow_N(k) = min(grow_N(k),U_Fe(k)/R_Fe2N(k))
endif

fr_Am(k) = c0
Expand Down
4 changes: 1 addition & 3 deletions columnphysics/icepack_parameters.F90
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Expand Up @@ -587,7 +587,6 @@ subroutine icepack_init_parameters( &
snowage_rhos_in, snowage_Tgrd_in, snowage_T_in, &
snowage_tau_in, snowage_kappa_in, snowage_drdt0_in, &
snw_aging_table_in, snw_ssp_table_in, grid_o_t_in, tau_min_in, tau_max_in, &
! these are defined in icepack_init_zbgc
f_don_protein_in, kn_bac_protein_in, f_don_Am_protein_in, &
ratio_Si2N_diatoms_in, &
ratio_Si2N_sp_in, ratio_Si2N_phaeo_in, ratio_S2N_diatoms_in, &
Expand Down Expand Up @@ -618,8 +617,7 @@ subroutine icepack_init_parameters( &
ratio_C2N_diatoms_in, ratio_C2N_sp_in, ratio_C2N_phaeo_in, &
ratio_chl2N_diatoms_in, ratio_chl2N_sp_in, ratio_chl2N_phaeo_in, &
F_abs_chl_diatoms_in, F_abs_chl_sp_in, F_abs_chl_phaeo_in, &
ratio_C2N_proteins_in &
)
ratio_C2N_proteins_in )

!-----------------------------------------------------------------
! control settings
Expand Down
4 changes: 2 additions & 2 deletions columnphysics/icepack_zbgc.F90
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Expand Up @@ -782,11 +782,11 @@ subroutine icepack_biogeochemistry(dt, &
else
first_ice(n) = .true.
if (tr_brine) trcrn(nt_fbri,n) = c1
!if (z_tracers) then
if (z_tracers) then
do mm = 1,nbtrcr
trcrn(nt_zbgc_frac-1+mm,n) = zbgc_frac_init(mm)
enddo
!endif
endif
endif

if (aicen(n) > puny) then
Expand Down
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