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C $Header: /u/gcmpack/MITgcm_contrib/bling/pkg/bling_remineralization.F,v 1.2 2016/02/28 21:49:24 mmazloff Exp $ |
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C $Name: $ |
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|
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#include "BLING_OPTIONS.h" |
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|
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CBOP |
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subroutine BLING_REMIN( |
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I PTR_NO3, PTR_FE, PTR_O2, irr_inst, |
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I N_spm, P_spm, Fe_spm, CaCO3_uptake, |
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O N_reminp, P_reminp, Fe_reminsum, |
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O N_den_benthic, CaCO3_diss, |
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I bi, bj, imin, imax, jmin, jmax, |
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I myIter, myTime, myThid ) |
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|
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C ================================================================= |
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C | subroutine bling_remin |
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C | o Organic matter export and remineralization |
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C | - Sinking particulate flux and diel migration contribute to |
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C | export. |
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C | - Denitrification xxx |
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C | o Sediments |
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C ================================================================= |
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|
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implicit none |
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|
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C === Global variables === |
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|
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#include "SIZE.h" |
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#include "DYNVARS.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "BLING_VARS.h" |
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#include "PTRACERS_SIZE.h" |
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#include "PTRACERS_PARAMS.h" |
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#ifdef ALLOW_AUTODIFF |
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# include "tamc.h" |
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#endif |
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|
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C === Routine arguments === |
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C bi,bj :: tile indices |
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C iMin,iMax :: computation domain: 1rst index range |
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C jMin,jMax :: computation domain: 2nd index range |
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C myTime :: current time |
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C myIter :: current timestep |
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C myThid :: thread Id. number |
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INTEGER bi, bj, imin, imax, jmin, jmax |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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C === Input === |
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C PTR_NO3 :: nitrate concentration |
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C PTR_FE :: iron concentration |
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C PTR_O2 :: oxygen concentration |
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_RL PTR_NO3(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL PTR_FE(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL PTR_O2(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL irr_inst(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL N_spm(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL P_spm(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL Fe_spm(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL CaCO3_uptake(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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C === Output === |
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C |
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_RL N_reminp(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL N_den_benthic(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL P_reminp(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL Fe_reminsum(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL CaCO3_diss(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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|
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#ifdef ALLOW_BLING |
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C === Local variables === |
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C i,j,k :: loop indices |
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C irr_eff :: effective irradiance |
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C NO3_lim :: nitrate limitation |
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C PO4_lim :: phosphate limitation |
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C Fe_lim :: iron limitation for phytoplankton |
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C Fe_lim_diaz :: iron limitation for diazotrophs |
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C alpha_Fe :: initial slope of the P-I curve |
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C theta_Fe :: Chl:C ratio |
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C theta_Fe_max :: Fe-replete maximum Chl:C ratio |
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C irrk :: nut-limited efficiency of algal photosystems |
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C Pc_m :: light-saturated max photosynthesis rate for phyt |
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C Pc_m_diaz :: light-saturated max photosynthesis rate for diaz |
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C Pc_tot :: carbon-specific photosynthesis rate |
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C expkT :: temperature function |
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C mu :: net carbon-specific growth rate for phyt |
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C mu_diaz :: net carbon-specific growth rate for diaz |
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C biomass_sm :: nitrogen concentration in small phyto biomass |
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C biomass_lg :: nitrogen concentration in large phyto biomass |
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C N_uptake :: nitrogen uptake |
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C N_fix :: nitrogen fixation |
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C P_uptake :: phosphorus uptake |
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C POC_flux :: carbon export flux 3d field |
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C chl :: chlorophyll diagnostic |
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C PtoN :: variable ratio of phosphorus to nitrogen |
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C FetoN :: variable ratio of iron to nitrogen |
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C N_spm :: particulate sinking of nitrogen |
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C P_spm :: particulate sinking of phosphorus |
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C Fe_spm :: particulate sinking of iron |
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C N_dvm :: vertical transport of nitrogen by DVM |
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C P_dvm :: vertical transport of phosphorus by DVM |
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C Fe_dvm :: vertical transport of iron by DVM |
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C N_recycle :: recycling of newly-produced organic nitrogen |
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C P_recycle :: recycling of newly-produced organic phosphorus |
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C Fe_recycle :: recycling of newly-produced organic iron |
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c xxx to be completed |
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INTEGER i,j,k |
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_RL PONflux_u |
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_RL POPflux_u |
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_RL PFEflux_u |
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_RL CaCO3flux_u |
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_RL PONflux_l |
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_RL POPflux_l |
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_RL PFEflux_l |
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_RL CaCO3flux_l |
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_RL depth_l |
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_RL zremin |
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_RL zremin_caco3 |
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_RL wsink |
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_RL POC_sed |
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_RL Fe_sed(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL NO3_sed(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL PO4_sed(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL O2_sed(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL lig_stability |
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_RL FreeFe |
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_RL Fe_ads_inorg(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL Fe_ads_org |
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_RL log_btm_flx |
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_RL Fe_reminp(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL o2_upper |
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_RL o2_lower |
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_RL dz_upper |
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_RL dz_lower |
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_RL temp_upper |
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_RL temp_lower |
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_RL z_dvm_regr |
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_RL frac_migr |
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_RL fdvm_migr |
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_RL fdvm_stat |
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_RL fdvmn_vint |
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_RL fdvmp_vint |
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_RL fdvmfe_vint |
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_RL z_dvm |
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_RL N_remindvm(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL P_remindvm(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL Fe_remindvm(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL dvm(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL mld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL Fe_burial(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL x_erfcc,z_erfcc,t_erfcc,erfcc |
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cxx order |
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CEOP |
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|
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c --------------------------------------------------------------------- |
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c Initialize output and diagnostics |
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|
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DO k=1,Nr |
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DO j=jmin,jmax |
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DO i=imin,imax |
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Fe_ads_inorg(i,j,k) = 0. _d 0 |
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N_reminp(i,j,k) = 0. _d 0 |
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P_reminp(i,j,k) = 0. _d 0 |
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Fe_reminp(i,j,k) = 0. _d 0 |
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Fe_reminsum(i,j,k) = 0. _d 0 |
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N_remindvm(i,j,k) = 0. _d 0 |
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P_remindvm(i,j,k) = 0. _d 0 |
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Fe_remindvm(i,j,k) = 0. _d 0 |
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N_den_benthic(i,j,k)= 0. _d 0 |
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CaCO3_diss(i,j,k) = 0. _d 0 |
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ENDDO |
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ENDDO |
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ENDDO |
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DO j=jmin,jmax |
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DO i=imin,imax |
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Fe_burial(i,j) = 0. _d 0 |
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NO3_sed(i,j) = 0. _d 0 |
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PO4_sed(i,j) = 0. _d 0 |
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O2_sed(i,j) = 0. _d 0 |
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ENDDO |
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ENDDO |
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|
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c --------------------------------------------------------------------- |
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c Remineralization |
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|
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C$TAF LOOP = parallel |
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DO j=jmin,jmax |
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C$TAF LOOP = parallel |
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DO i=imin,imax |
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|
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C Initialize upper flux |
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PONflux_u = 0. _d 0 |
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POPflux_u = 0. _d 0 |
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PFEflux_u = 0. _d 0 |
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CaCO3flux_u = 0. _d 0 |
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|
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c C$TAF init remin_stuff = static, Nr |
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|
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DO k=1,Nr |
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|
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Fe_ads_org = 0. _d 0 |
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IF ( hFacC(i,j,k,bi,bj).gt.0. _d 0 ) THEN |
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|
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C Sinking speed is evaluated at the bottom of the cell |
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depth_l=-rF(k+1) |
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IF (depth_l .LE. wsink0z) THEN |
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wsink = wsink0 |
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ELSE |
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wsink = wsinkacc * (depth_l - wsink0z) + wsink0 |
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ENDIF |
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|
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C Nutrient remineralization lengthscale |
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C Not an e-folding scale: this term increases with remineralization. |
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zremin = gamma_POM * ( PTR_O2(i,j,k)**2 / |
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& (k_O2**2 + PTR_O2(i,j,k)**2) * (1-remin_min) |
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& + remin_min )/(wsink + epsln) |
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|
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C Calcium remineralization relaxed toward the inverse of the |
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C ca_remin_depth constant value as the calcite saturation approaches 0. |
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zremin_caco3 = 1. _d 0/ca_remin_depth*(1. _d 0 - min(1. _d 0, |
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& omegaC(i,j,k,bi,bj) + epsln )) |
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|
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|
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C POM flux leaving the cell |
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PONflux_l = (PONflux_u+N_spm(i,j,k)*drF(k) |
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& *hFacC(i,j,k,bi,bj))/(1+zremin*drF(k) |
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& *hFacC(i,j,k,bi,bj)) |
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C!! multiply by intercept_frac ??? |
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|
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POPflux_l = (POPflux_u+P_spm(i,j,k)*drF(k) |
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& *hFacC(i,j,k,bi,bj))/(1+zremin*drF(k) |
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& *hFacC(i,j,k,bi,bj)) |
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C!! multiply by intercept_frac ??? |
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|
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C CaCO3 flux leaving the cell |
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CaCO3flux_l = (caco3flux_u+CaCO3_uptake(i,j,k)*drF(k) |
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& *hFacC(i,j,k,bi,bj))/(1+zremin_caco3*drF(k) |
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& *hFacC(i,j,k,bi,bj)) |
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C!! multiply by intercept_frac ??? |
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|
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|
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C Start with cells that are not the deepest cells |
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IF ((k.LT.Nr) .AND. (hFacC(i,j,k+1,bi,bj).GT.0)) THEN |
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|
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C Nutrient accumulation in a cell is given by the biological production |
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C (and instant remineralization) of particulate organic matter |
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C plus flux thought upper interface minus flux through lower interface. |
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C (Since not deepest cell: hFacC=1) |
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N_reminp(i,j,k) = (PONflux_u + N_spm(i,j,k)*drF(k) |
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& - PONflux_l)*recip_drF(k) |
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|
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P_reminp(i,j,k) = (POPflux_u + P_spm(i,j,k)*drF(k) |
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& - POPflux_l)*recip_drF(k) |
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|
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CaCO3_diss(i,j,k) = (CaCO3flux_u + CaCO3_uptake(i,j,k) |
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& *drF(k) - CaCO3flux_l)*recip_drF(k) |
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|
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Fe_sed(i,j,k) = 0. _d 0 |
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|
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|
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ELSE |
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C If this layer is adjacent to bottom topography or it is the deepest |
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C cell of the domain, then remineralize/dissolve in this grid cell |
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C i.e. don't subtract off lower boundary fluxes when calculating remin |
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|
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N_reminp(i,j,k) = PONflux_u*recip_drF(k) |
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& *recip_hFacC(i,j,k,bi,bj) + N_spm(i,j,k) |
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|
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P_reminp(i,j,k) = POPflux_u*recip_drF(k) |
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& *recip_hFacC(i,j,k,bi,bj) + P_spm(i,j,k) |
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|
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CaCO3_diss(i,j,k) = CaCO3flux_u*recip_drF(k) |
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& *recip_hFacC(i,j,k,bi,bj) + CaCO3_uptake(i,j,k) |
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|
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|
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c Efflux Fed out of sediments |
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C The phosphate flux hitting the bottom boundary |
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C is used to scale the return of iron to the water column. |
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C Maximum value added for numerical stability. |
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|
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POC_sed = PONflux_l * CtoN |
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|
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Fe_sed(i,j,k) = min(1. _d -11, |
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& max(epsln, FetoC_sed * POC_sed * recip_drF(k) |
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& *recip_hFacC(i,j,k,bi,bj))) |
287 |
|
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#ifdef BLING_ADJOINT_SAFE |
289 |
Fe_sed(i,j,k) = 0. _d 0 |
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#endif |
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|
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|
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cav temporary until I figure out why this is problematic for adjoint |
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#ifndef BLING_ADJOINT_SAFE |
295 |
|
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#ifndef USE_SGS_SED |
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c Calculate benthic denitrification and Fe efflux here, if the subgridscale sediment module is not being used. |
298 |
|
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IF (POC_sed .gt. 0. _d 0) THEN |
300 |
|
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log_btm_flx = 0. _d 0 |
302 |
|
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c Convert from mol N m-2 s-1 to umol C cm-2 d-1 and take the log |
304 |
|
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log_btm_flx = log10(min(43.0 _d 0, POC_sed * |
306 |
& 86400. _d 0 * 100.0 _d 0)) |
307 |
|
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c Metamodel gives units of umol C cm-2 d-1, convert to mol N m-2 s-1 and multiply by |
309 |
c no3_2_n to give NO3 consumption rate |
310 |
|
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N_den_benthic(i,j,k) = min (POC_sed * NO3toN / CtoN, |
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& (10 _d 0)**(-0.9543 _d 0 + 0.7662 _d 0 * |
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& log_btm_flx - 0.235 _d 0 * log_btm_flx * log_btm_flx) |
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& / (CtoN * 86400. _d 0 * 100.0 _d 0) * NO3toN * |
315 |
& PTR_NO3(i,j,k) / (k_no3 + PTR_NO3(i,j,k)) ) * |
316 |
& recip_drF(k) |
317 |
|
318 |
endif |
319 |
|
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#endif |
321 |
|
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#endif |
323 |
|
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c --------------------------------------------------------------------- |
325 |
c Calculate external bottom fluxes for tracer_vertdiff. Positive fluxes are into the water |
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c column from the seafloor. For P, the bottom flux puts the sinking flux reaching the bottom |
327 |
c cell into the water column through diffusion. For iron, the sinking flux disappears into the |
328 |
c sediments if bottom waters are oxic (assumed adsorbed as oxides). If bottom waters are anoxic, |
329 |
c the sinking flux of Fe is returned to the water column. |
330 |
c |
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c For oxygen, the consumption of oxidant required to respire |
332 |
c the settling flux of organic matter (in support of the |
333 |
c no3 bottom flux) diffuses from the bottom water into the sediment. |
334 |
|
335 |
c Assume all NO3 for benthic denitrification is supplied from the bottom water, and that |
336 |
c all organic N is also consumed under denitrification (Complete Denitrification, sensu |
337 |
c Paulmier, Biogeosciences 2009). Therefore, no NO3 is regenerated from organic matter |
338 |
c respired by benthic denitrification (necessitating the second term in b_no3). |
339 |
|
340 |
NO3_sed(i,j) = PONflux_l*drF(k)*hFacC(i,j,k,bi,bj) |
341 |
& - N_den_benthic(i,j,k) / NO3toN |
342 |
|
343 |
PO4_sed(i,j) = POPflux_l*drF(k)*hFacC(i,j,k,bi,bj) |
344 |
|
345 |
c Oxygen flux into sediments is that required to support non-denitrification respiration, |
346 |
c assuming a 4/5 oxidant ratio of O2 to NO3. Oxygen consumption is allowed to continue |
347 |
c at negative oxygen concentrations, representing sulphate reduction. |
348 |
|
349 |
O2_sed(i,j) = -(O2toN * PONflux_l*drF(k)*hFacC(i,j,k,bi,bj) |
350 |
& - N_den_benthic(i,j,k)* 1.25) |
351 |
|
352 |
ENDIF |
353 |
|
354 |
|
355 |
C Begin iron uptake calculations by determining ligand bound and free iron. |
356 |
C Both forms are available for biology, but only free iron is scavenged |
357 |
C onto particles and forms colloids. |
358 |
|
359 |
lig_stability = kFe_eq_lig_max-(KFe_eq_lig_max-kFe_eq_lig_min) |
360 |
& *(irr_inst(i,j,k)**2 |
361 |
& /(kFe_eq_lig_irr**2+irr_inst(i,j,k)**2)) |
362 |
& *max(epsln,min(1. _d 0,(PTR_FE(i,j,k) |
363 |
& -kFe_eq_lig_Femin)/ |
364 |
& (PTR_FE(i,j,k)+epsln)*1.2 _d 0)) |
365 |
|
366 |
C Use the quadratic equation to solve for binding between iron and ligands |
367 |
|
368 |
FreeFe = (-(1+lig_stability*(ligand-PTR_FE(i,j,k))) |
369 |
& +((1+lig_stability*(ligand-PTR_FE(i,j,k)))**2+4* |
370 |
& lig_stability*PTR_FE(i,j,k))**(0.5))/(2* |
371 |
& lig_stability) |
372 |
|
373 |
C Iron scavenging doesn't occur in anoxic water (Fe2+ is soluble), so set |
374 |
C FreeFe = 0 when anoxic. FreeFe should be interpreted the free iron that |
375 |
C participates in scavenging. |
376 |
|
377 |
#ifndef BLING_ADJOINT_SAFE |
378 |
IF (PTR_O2(i,j,k) .LT. oxic_min) THEN |
379 |
FreeFe = 0. _d 0 |
380 |
ENDIF |
381 |
#endif |
382 |
|
383 |
c Two mechanisms for iron uptake, in addition to biological production: |
384 |
c colloidal scavenging and scavenging by organic matter. |
385 |
|
386 |
c Colloidal scavenging: |
387 |
c Minimum function for numerical stability |
388 |
c Fe_uptake(i,j,k) = Fe_uptake(i,j,k)+ |
389 |
c & min(0.5/PTRACERS_dTLev(1), kFe_inorg*FreeFe**(0.5))*FreeFe |
390 |
|
391 |
Fe_ads_inorg(i,j,k) = |
392 |
& kFe_inorg*(max(1. _d -8,FreeFe))**(1.5) |
393 |
|
394 |
C Scavenging of iron by organic matter: |
395 |
c The POM value used is the bottom boundary flux. This doesn't occur in |
396 |
c oxic waters, but FreeFe is set to 0 in such waters earlier. |
397 |
IF ( PONflux_l .GT. 0. _d 0 ) THEN |
398 |
|
399 |
c Minimum function for numerical stability |
400 |
c Fe_uptake(i,j,k) = Fe_uptake(i,j,k)+ |
401 |
c & min(0.5/PTRACERS_dTLev(1), kFE_org*(POMflux_l |
402 |
c & *CtoP/NUTfac*12.01/wsink)**(0.58)*FreeFe |
403 |
|
404 |
#ifndef BLING_ADJOINT_SAFE |
405 |
Fe_ads_org = |
406 |
& kFE_org*(PONflux_l/(epsln + wsink) |
407 |
& * MasstoN)**(0.58)*FreeFe |
408 |
#else |
409 |
Fe_ads_org = |
410 |
& kFE_org*(PONflux_l/(epsln + wsink0) |
411 |
& * MasstoN)**(0.58)*FreeFe |
412 |
#endif |
413 |
ENDIF |
414 |
|
415 |
|
416 |
|
417 |
C If water is oxic then the iron is remineralized normally. Otherwise |
418 |
C it is completely remineralized (fe 2+ is soluble, but unstable |
419 |
C in oxidizing environments). |
420 |
|
421 |
PFEflux_l = (PFEflux_u+(Fe_spm(i,j,k)+Fe_ads_inorg(i,j,k) |
422 |
& +Fe_ads_org)*drF(k) |
423 |
& *hFacC(i,j,k,bi,bj))/(1+zremin*drF(k) |
424 |
& *hFacC(i,j,k,bi,bj)) |
425 |
|
426 |
|
427 |
c Added the burial flux of sinking particulate iron here as a |
428 |
c diagnostic, needed to calculate mass balance of iron. |
429 |
c this is calculated last for the deepest cell |
430 |
|
431 |
Fe_burial(i,j) = PFeflux_l |
432 |
|
433 |
|
434 |
#ifndef BLING_ADJOINT_SAFE |
435 |
IF ( PTR_O2(i,j,k) .LT. oxic_min ) THEN |
436 |
pfeflux_l = 0 |
437 |
ENDIF |
438 |
#endif |
439 |
|
440 |
Fe_reminp(i,j,k) = (pfeflux_u+(Fe_spm(i,j,k) |
441 |
& +Fe_ads_inorg(i,j,k) |
442 |
& +Fe_ads_org)*drF(k) |
443 |
& *hFacC(i,j,k,bi,bj)-pfeflux_l)*recip_drF(k) |
444 |
& *recip_hFacC(i,j,k,bi,bj) |
445 |
C!! there's an intercept_frac here... need to add |
446 |
|
447 |
|
448 |
C Prepare the tracers for the next layer down |
449 |
PONflux_u = PONflux_l |
450 |
POPflux_u = POPflux_l |
451 |
PFEflux_u = PFEflux_l |
452 |
CaCO3flux_u = CaCO3flux_l |
453 |
|
454 |
c |
455 |
Fe_reminsum(i,j,k) = Fe_reminp(i,j,k) + Fe_sed(i,j,k) |
456 |
& - Fe_ads_org - Fe_ads_inorg(i,j,k) |
457 |
cc Fe_reminsum(i,j,k) = 0. _d 0 |
458 |
|
459 |
ENDIF |
460 |
|
461 |
Fe_ads_org = 0. _d 0 |
462 |
|
463 |
ENDDO |
464 |
ENDDO |
465 |
ENDDO |
466 |
|
467 |
c --------------------------------------------------------------------- |
468 |
|
469 |
#ifdef ALLOW_DIAGNOSTICS |
470 |
IF ( useDiagnostics ) THEN |
471 |
|
472 |
c 3d local variables |
473 |
c CALL DIAGNOSTICS_FILL(POC_flux,'BLGPOCF ',0,Nr,2,bi,bj,myThid) |
474 |
CALL DIAGNOSTICS_FILL(Fe_ads_inorg,'BLGFEAI',0,Nr,2,bi,bj, |
475 |
& myThid) |
476 |
CALL DIAGNOSTICS_FILL(Fe_sed,'BLGFESED',0,Nr,2,bi,bj,myThid) |
477 |
CALL DIAGNOSTICS_FILL(Fe_reminp,'BLGFEREM',0,Nr,2,bi,bj,myThid) |
478 |
CALL DIAGNOSTICS_FILL(N_den_benthic,'BLGNDENB',0,Nr,2,bi,bj, |
479 |
& myThid) |
480 |
c CALL DIAGNOSTICS_FILL(N_den_pelag,'BLGNDENP',0,Nr,2,bi,bj,myThid) |
481 |
CALL DIAGNOSTICS_FILL(N_reminp,'BLGNREM ',0,Nr,2,bi,bj,myThid) |
482 |
CALL DIAGNOSTICS_FILL(P_reminp,'BLGPREM ',0,Nr,2,bi,bj,myThid) |
483 |
c 2d local variables |
484 |
CALL DIAGNOSTICS_FILL(Fe_burial,'BLGFEBUR',0,1,2,bi,bj,myThid) |
485 |
CALL DIAGNOSTICS_FILL(NO3_sed,'BLGNSED ',0,1,2,bi,bj,myThid) |
486 |
CALL DIAGNOSTICS_FILL(PO4_sed,'BLGPSED ',0,1,2,bi,bj,myThid) |
487 |
CALL DIAGNOSTICS_FILL(O2_sed,'BLGO2SED',0,1,2,bi,bj,myThid) |
488 |
c these variables are currently 1d, could be 3d for diagnostics |
489 |
c (or diag_fill could be called inside loop - which is faster?) |
490 |
c CALL DIAGNOSTICS_FILL(zremin,'BLGZREM ',0,Nr,2,bi,bj,myThid) |
491 |
|
492 |
ENDIF |
493 |
#endif /* ALLOW_DIAGNOSTICS */ |
494 |
|
495 |
|
496 |
|
497 |
#endif /* ALLOW_BLING */ |
498 |
|
499 |
RETURN |
500 |
END |