MODULE asmlogchlbal_ersem !!====================================================================== !! *** MODULE asmlogchlbal_ersem *** !! Calculate increments to ERSEM based on surface logchl increments !!====================================================================== !! History : 3.6 ! 2016-09 (D. Ford) Original code !!---------------------------------------------------------------------- #if defined key_asminc && defined key_fabm !!---------------------------------------------------------------------- !! 'key_asminc' : assimilation increment interface !! 'key_fabm' : FABM-ERSEM coupling !!---------------------------------------------------------------------- !! asm_logchl_bal_ersem : routine to calculate increments to ERSEM !!---------------------------------------------------------------------- USE par_kind, ONLY: wp ! kind parameters USE par_oce, ONLY: jpi, jpj, jpk ! domain array sizes USE dom_oce, ONLY: gdepw_n ! domain information USE zdfmxl ! mixed layer depth USE iom ! i/o USE trc, ONLY: trn ! ERSEM state variables USE par_fabm ! FABM parameters USE par_trc, ONLY: jptra ! Tracer parameters USE bioanalysis IMPLICIT NONE PRIVATE PUBLIC asm_logchl_bal_ersem ! Default values for biological assimilation parameters ! Should match Hemmings et al. (2008) REAL(wp), PARAMETER :: balnutext = 0.6 !: Default nutrient balancing factor REAL(wp), PARAMETER :: balnutmin = 0.1 !: Fraction of phytoplankton loss to nutrient REAL(wp), PARAMETER :: r = 1 !: Reliability of model specific growth rate REAL(wp), PARAMETER :: beta_g = 0.05 !: Low rate bias correction for growth rate estimator REAL(wp), PARAMETER :: beta_l = 0.05 !: Low rate bias correction for primary loss rate estimator REAL(wp), PARAMETER :: beta_m = 0.05 !: Low rate bias correction for secondary loss rate estimator REAL(wp), PARAMETER :: a_g = 0.2 !: Error s.d. for log10 of growth rate estimator REAL(wp), PARAMETER :: a_l = 0.4 !: Error s.d. for log10 of primary loss rate estimator REAL(wp), PARAMETER :: a_m = 0.7 !: Error s.d. for log10 of secondary loss rate estimator REAL(wp), PARAMETER :: zfracb0 = 0.7 !: Base zooplankton fraction of loss to Z & D REAL(wp), PARAMETER :: zfracb1 = 0 !: Phytoplankton sensitivity of zooplankton fraction REAL(wp), PARAMETER :: qrfmax = 1.1 !: Maximum nutrient limitation reduction factor REAL(wp), PARAMETER :: qafmax = 1.1 !: Maximum nutrient limitation amplification factor REAL(wp), PARAMETER :: zrfmax = 2 !: Maximum zooplankton reduction factor REAL(wp), PARAMETER :: zafmax = 2 !: Maximum zooplankton amplification factor REAL(wp), PARAMETER :: prfmax = 10 !: Maximum phytoplankton reduction factor (secondary) REAL(wp), PARAMETER :: incphymin = 0.0001 !: Minimum size of non-zero phytoplankton increment REAL(wp), PARAMETER :: integnstep = 20 !: Number of steps for p.d.f. integral evaluation REAL(wp), PARAMETER :: pthreshold = 0.01 !: Fractional threshold level for setting p.d.f. ! LOGICAL, PARAMETER :: diag_active = .TRUE. !: Depth-independent diagnostics LOGICAL, PARAMETER :: diag_fulldepth_active = .TRUE. !: Full-depth diagnostics LOGICAL, PARAMETER :: gl_active = .TRUE. !: Growth/loss-based balancing LOGICAL, PARAMETER :: nbal_active = .TRUE. !: Nitrogen balancing LOGICAL, PARAMETER :: subsurf_active = .TRUE. !: Increments below MLD LOGICAL, PARAMETER :: deepneg_active = .FALSE. !: Negative primary increments below MLD LOGICAL, PARAMETER :: deeppos_active = .FALSE. !: Positive primary increments below MLD LOGICAL, PARAMETER :: nutprof_active = .TRUE. !: Secondary increments CONTAINS SUBROUTINE asm_logchl_bal_ersem( ld_logchlpftinc, npfts, mld_choice_bgc, & & k_maxchlinc, logchl_bkginc, logchl_balinc, & & pgrow_avg_bkg, ploss_avg_bkg, & & phyt_avg_bkg, mld_max_bkg, & & ld_logchlbal, aincper ) !!--------------------------------------------------------------------------- !! *** ROUTINE asm_logchl_bal_ersem *** !! !! ** Purpose : calculate increments to ERSEM from logchl increments !! !! ** Method : convert logchl increments to chl increments !! split between the ERSEM PFTs !! spread through the mixed layer !! [forthcoming: calculate increments to nutrients and zooplankton] !! !! ** Action : populate logchl_balinc !! !! References : forthcoming... !!--------------------------------------------------------------------------- !! LOGICAL, INTENT(in ) :: ld_logchlpftinc INTEGER, INTENT(in ) :: npfts INTEGER, INTENT(in ) :: mld_choice_bgc REAL(wp), INTENT(in ) :: k_maxchlinc REAL(wp), INTENT(in ), DIMENSION(jpi,jpj,npfts) :: logchl_bkginc REAL(wp), INTENT( out), DIMENSION(jpi,jpj,jpk,jptra) :: logchl_balinc REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: pgrow_avg_bkg ! Avg phyto growth REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: ploss_avg_bkg ! Avg phyto loss REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: phyt_avg_bkg ! Avg phyto REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: mld_max_bkg ! Max MLD LOGICAL, INTENT(in ) :: ld_logchlbal ! Balancing y/n REAL(wp), INTENT(in ) :: aincper !! INTEGER :: ji, jj, jk INTEGER :: jkmax REAL(wp) :: chl_tot, chl_inc REAL(wp), DIMENSION(jpi,jpj) :: zmld REAL(wp), DIMENSION(16) :: modparm ! Model parameters REAL(wp), DIMENSION(20) :: assimparm ! Assimilation parameters REAL(wp), DIMENSION(jpi,jpj,jpk,6) :: bstate ! Background state REAL(wp), DIMENSION(jpi,jpj,jpk,6) :: outincs ! Balancing increments REAL(wp), DIMENSION(jpi,jpj,22) :: diag ! Depth-indep diagnostics REAL(wp), DIMENSION(jpi,jpj,jpk,22) :: diag_fulldepth ! Full-depth diagnostics INTEGER, DIMENSION(6) :: i_tracer ! Tracer indices REAL(wp), DIMENSION(jpi,jpj) :: cchl_p ! C:Chl for total phy REAL(wp), DIMENSION(jpi,jpj) :: chlinctot REAL(wp) :: n2be_p ! N:biomass for total phy REAL(wp) :: n2be_z ! N:biomass for total zoo REAL(wp) :: n2be_d ! N:biomass for detritus REAL(wp) :: zfrac_n3n ! Fraction of jp_fabm_n3n REAL(wp) :: zfrac_n4n ! Fraction of jp_fabm_n4n REAL(wp) :: zfrac_r4n ! Fraction of jp_fabm_r4n REAL(wp) :: zfrac_r6n ! Fraction of jp_fabm_r6n REAL(wp) :: zfrac_r8n ! Fraction of jp_fabm_r8n REAL(wp) :: zfrac_z4n ! Fraction of jp_fabm_z4n REAL(wp) :: zfrac_z5n ! Fraction of jp_fabm_z5n REAL(wp) :: zfrac_z6n ! Fraction of jp_fabm_z6n REAL(wp) :: zfrac_p1n ! Fraction of jp_fabm_p1n REAL(wp) :: zfrac_p2n ! Fraction of jp_fabm_p2n REAL(wp) :: zfrac_p3n ! Fraction of jp_fabm_p3n REAL(wp) :: zfrac_p4n ! Fraction of jp_fabm_p4n REAL(wp) :: zrat_z4c_z4n REAL(wp) :: zrat_z5c_z5n REAL(wp) :: zrat_z5p_z5n REAL(wp) :: zrat_z6c_z6n REAL(wp) :: zrat_z6p_z6n REAL(wp) :: zrat_p1c_p1n REAL(wp) :: zrat_p1p_p1n REAL(wp) :: zrat_p1s_p1n REAL(wp) :: zrat_p2c_p2n REAL(wp) :: zrat_p2p_p2n REAL(wp) :: zrat_p3c_p3n REAL(wp) :: zrat_p3p_p3n REAL(wp) :: zrat_p4c_p4n REAL(wp) :: zrat_p4p_p4n !!--------------------------------------------------------------------------- ! Split surface logchl incs into surface Chl1-4 incs ! ! In order to transform logchl incs to chl incs, need to account for the background, ! cannot simply do 10^logchl_bkginc. Need to: ! 1) Add logchl inc to log10(background) to get log10(analysis) ! 2) Take 10^log10(analysis) to get analysis ! 3) Subtract background from analysis to get chl incs ! If k_maxchlinc > 0 then cap total absolute chlorophyll increment at that value ! ! Only apply increments if all of Chl1-4 background values are > 0 ! In theory, they always will be, and if any are not that's a sign ! that something's going wrong which the assimilation might make worse ! IF ( ld_logchlpftinc ) THEN ! ! Assimilating separate PFTs, so separately transform each from LogChl to Chl ! IF ( npfts /= 4 ) THEN CALL ctl_stop( 'If assimilating PFTs into ERSEM, nn_asmpfts must be 4' ) ENDIF DO jj = 1, jpj DO ji = 1, jpi IF ( ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) > 0.0 ) .AND. & & ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) > 0.0 ) .AND. & & ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) > 0.0 ) .AND. & & ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) > 0.0 ) ) THEN IF ( logchl_bkginc(ji,jj,1) /= 0.0 ) THEN logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) = 10**( LOG10( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) ) + & & logchl_bkginc(ji,jj,1) ) - & & trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) ENDIF IF ( logchl_bkginc(ji,jj,2) /= 0.0 ) THEN logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) = 10**( LOG10( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) ) + & & logchl_bkginc(ji,jj,2) ) - & & trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) ENDIF IF ( logchl_bkginc(ji,jj,3) /= 0.0 ) THEN logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) = 10**( LOG10( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) ) + & & logchl_bkginc(ji,jj,3) ) - & & trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) ENDIF IF ( logchl_bkginc(ji,jj,4) /= 0.0 ) THEN logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) = 10**( LOG10( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) ) + & & logchl_bkginc(ji,jj,4) ) - & & trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) ENDIF IF (k_maxchlinc > 0.0) THEN chl_inc = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) + & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) + & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) + & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) IF ( ABS(chl_inc) > k_maxchlinc ) THEN chl_tot = ABS(chl_inc) / k_maxchlinc logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) / chl_tot logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) / chl_tot logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) / chl_tot logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) / chl_tot ENDIF ENDIF ENDIF END DO END DO ELSE ! ! Assimilating total Chl, so transform total from LogChl to Chl ! and split between PFTs according to the existing background ratios ! IF ( npfts /= 1 ) THEN CALL ctl_stop( 'If assimilating total chlorophyll, nn_asmpfts must be 1' ) ENDIF DO jj = 1, jpj DO ji = 1, jpi IF ( ( logchl_bkginc(ji,jj,1) /= 0.0 ) .AND. & & ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) > 0.0 ) .AND. & & ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) > 0.0 ) .AND. & & ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) > 0.0 ) .AND. & & ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) > 0.0 ) ) THEN chl_tot = trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) + trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) + & & trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) + trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) chl_inc = 10**( LOG10( chl_tot ) + logchl_bkginc(ji,jj,1) ) - chl_tot IF (k_maxchlinc > 0.0) THEN chl_inc = MAX( -1.0 * k_maxchlinc, MIN( chl_inc, k_maxchlinc ) ) ENDIF logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) = chl_inc * trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) / chl_tot logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) = chl_inc * trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) / chl_tot logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) = chl_inc * trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) / chl_tot logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) = chl_inc * trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) / chl_tot ENDIF END DO END DO ENDIF ! Propagate surface Chl1-4 incs through mixed layer ! First, choose mixed layer definition ! SELECT CASE( mld_choice_bgc ) CASE ( 1 ) ! Turbocline/mixing depth [W points] zmld(:,:) = hmld(:,:) CASE ( 2 ) ! Density criterion (0.01 kg/m^3 change from 10m) [W points] zmld(:,:) = hmlp(:,:) CASE ( 3 ) ! Kara MLD [Interpolated] #if defined key_karaml IF ( ln_kara ) THEN zmld(:,:) = hmld_kara(:,:) ELSE CALL ctl_stop( ' Kara mixed layer requested for LogChl assimilation,', & & ' but ln_kara=.false.' ) ENDIF #else CALL ctl_stop( ' Kara mixed layer requested for LogChl assimilation,', & & ' but is not defined' ) #endif CASE ( 4 ) ! Temperature criterion (0.2 K change from surface) [T points] zmld(:,:) = hmld_tref(:,:) CASE ( 5 ) ! Density criterion (0.01 kg/m^3 change from 10m) [T points] zmld(:,:) = hmlpt(:,:) END SELECT IF ( ld_logchlbal ) THEN ! Set up model parameters to be passed into Hemmings balancing routine. ! For now these are hardwired to the standard HadOCC parameter values ! as this is what the scheme was developed for. ! Obviously, HadOCC and ERSEM are rather different models, so this ! isn't ideal, but there's not always direct analogues between the two ! parameter sets, so it's the easiest way to get something running. ! In the longer term, some serious MarMOT-based development is required. modparm(1) = 0.1 ! grow_sat modparm(2) = 2.0 ! psmax modparm(3) = 0.845 ! par modparm(4) = 0.02 ! alpha modparm(5) = 0.05 ! resp_rate modparm(6) = 0.05 ! pmort_rate modparm(7) = 0.01 ! phyto_min modparm(8) = 0.05 ! z_mort_1 modparm(9) = 1.0 ! z_mort_2 modparm(10) = 6.625 ! c2n_p modparm(11) = 5.625 ! c2n_z modparm(12) = 7.5 ! c2n_d modparm(13) = 0.01 ! graze_threshold modparm(14) = 2.0 ! holling_coef modparm(15) = 0.5 ! graze_sat modparm(16) = 2.0 ! graze_max ! Set up assimilation parameters to be passed into balancing routine ! Not sure what assimparm(1) is meant to be, but it doesn't get used assimparm(2) = balnutext assimparm(3) = balnutmin assimparm(4) = r assimparm(5) = beta_g assimparm(6) = beta_l assimparm(7) = beta_m assimparm(8) = a_g assimparm(9) = a_l assimparm(10) = a_m assimparm(11) = zfracb0 assimparm(12) = zfracb1 assimparm(13) = qrfmax assimparm(14) = qafmax assimparm(15) = zrfmax assimparm(16) = zafmax assimparm(17) = prfmax assimparm(18) = incphymin assimparm(19) = integnstep assimparm(20) = pthreshold ! Set up external tracer indices array bstate i_tracer(1) = 1 ! nutrient i_tracer(2) = 2 ! phytoplankton i_tracer(3) = 3 ! zooplankton i_tracer(4) = 4 ! detritus i_tracer(5) = 5 ! DIC i_tracer(6) = 6 ! Alkalinity ! Set background state bstate(:,:,:,i_tracer(1)) = trn(:,:,:,jp_fabm_m1+jp_fabm_n3n) + trn(:,:,:,jp_fabm_m1+jp_fabm_n4n) bstate(:,:,:,i_tracer(2)) = trn(:,:,:,jp_fabm_m1+jp_fabm_p1n) + trn(:,:,:,jp_fabm_m1+jp_fabm_p2n) + & & trn(:,:,:,jp_fabm_m1+jp_fabm_p3n) + trn(:,:,:,jp_fabm_m1+jp_fabm_p4n) ! Z4c needs converting by qnc, hardwire for now bstate(:,:,:,i_tracer(3)) = (trn(:,:,:,jp_fabm_m1+jp_fabm_z4c) * 0.0126 ) + & & trn(:,:,:,jp_fabm_m1+jp_fabm_z5n) + trn(:,:,:,jp_fabm_m1+jp_fabm_z6n) bstate(:,:,:,i_tracer(4)) = trn(:,:,:,jp_fabm_m1+jp_fabm_r4n) + trn(:,:,:,jp_fabm_m1+jp_fabm_r6n) + & & trn(:,:,:,jp_fabm_m1+jp_fabm_r8n) bstate(:,:,:,i_tracer(5)) = trn(:,:,:,jp_fabm_m1+jp_fabm_o3c) bstate(:,:,:,i_tracer(6)) = trn(:,:,:,jp_fabm_m1+jp_fabm_o3a) ! Calculate carbon to chlorophyll ratio for combined phytoplankton ! and nitrogen to biomass equivalent for PZD ! Need a single number, so base on HadOCC cchl_p(:,:) = 0.0 DO jj = 1, jpj DO ji = 1, jpi IF ( ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) + trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) + & & trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) + trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) ) .GT. 0.0 ) THEN cchl_p(ji,jj) = ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_p1c) + trn(ji,jj,1,jp_fabm_m1+jp_fabm_p2c) + & & trn(ji,jj,1,jp_fabm_m1+jp_fabm_p3c) + trn(ji,jj,1,jp_fabm_m1+jp_fabm_p4c) ) / & & ( trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) + trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) + & & trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) + trn(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) ) ENDIF END DO END DO n2be_p = ( 14.01 + ( 12.01 * 6.625 ) ) ! / ( 14.01 + ( 12.01 * 6.625 ) ) n2be_z = ( 14.01 + ( 12.01 * 5.625 ) ) ! / ( 14.01 + ( 12.01 * 6.625 ) ) n2be_d = ( 14.01 + ( 12.01 * 7.5 ) ) ! / ( 14.01 + ( 12.01 * 6.625 ) ) chlinctot(:,:) = logchl_balinc(:,:,1,jp_fabm_m1+jp_fabm_chl1) + logchl_balinc(:,:,1,jp_fabm_m1+jp_fabm_chl2) + & & logchl_balinc(:,:,1,jp_fabm_m1+jp_fabm_chl3) + logchl_balinc(:,:,1,jp_fabm_m1+jp_fabm_chl4) ! Call nitrogen balancing routine CALL bio_analysis( jpi, jpj, jpk, gdepw_n(:,:,2:jpk), i_tracer, modparm, & & n2be_p, n2be_z, n2be_d, assimparm, & & INT(aincper), 1, INT(SUM(tmask,3)), tmask(:,:,:), & & zmld(:,:), mld_max_bkg(:,:), chlinctot(:,:), cchl_p(:,:), & & nbal_active, phyt_avg_bkg(:,:), & & gl_active, pgrow_avg_bkg(:,:), ploss_avg_bkg(:,:), & & subsurf_active, deepneg_active, & & deeppos_active, nutprof_active, & & bstate, outincs, & & diag_active, diag, & & diag_fulldepth_active, diag_fulldepth ) ! Loop over each grid point partioning the increments DO jk = 1, jpk DO jj = 1, jpj DO ji = 1, jpi ! Nitrogen phytoplankton from balancing scheme ! Split according to current ratios [ChlTot] or assimilation [PFTs] ! Update carbon, phosphorus and silicon according to current ratios ! Already have chlorophyll IF ( ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) > 0.0 ) .AND. & & ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) > 0.0 ) .AND. & & ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) > 0.0 ) .AND. & & ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n) > 0.0 ) ) THEN IF ( ld_logchlpftinc ) THEN IF ( (logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4)) > 0.0 ) THEN zfrac_p1n = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) / & & (logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4)) zfrac_p2n = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) / & & (logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4)) zfrac_p3n = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) / & & (logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4)) zfrac_p4n = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) / & & (logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) + & & logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4)) ELSE zfrac_p1n = 0.25 zfrac_p2n = 0.25 zfrac_p3n = 0.25 zfrac_p4n = 0.25 ENDIF ELSE zfrac_p1n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) / & & (trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n)) zfrac_p2n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) / & & (trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n)) zfrac_p3n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) / & & (trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n)) zfrac_p4n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n) / & & (trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n)) ENDIF zrat_p1c_p1n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1c) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) zrat_p1p_p1n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1p) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) zrat_p1s_p1n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1s) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) zrat_p2c_p2n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2c) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) zrat_p2p_p2n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2p) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) zrat_p3c_p3n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3c) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) zrat_p3p_p3n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3p) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) zrat_p4c_p4n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4c) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n) zrat_p4p_p4n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4p) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n) logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) = outincs(ji,jj,jk,i_tracer(2)) * zfrac_p1n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) = outincs(ji,jj,jk,i_tracer(2)) * zfrac_p2n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) = outincs(ji,jj,jk,i_tracer(2)) * zfrac_p3n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n) = outincs(ji,jj,jk,i_tracer(2)) * zfrac_p4n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p1c) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) * zrat_p1c_p1n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p1p) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) * zrat_p1p_p1n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p1s) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p1n) * zrat_p1s_p1n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p2c) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) * zrat_p2c_p2n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p2p) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p2n) * zrat_p2p_p2n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p3c) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) * zrat_p3c_p3n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p3p) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p3n) * zrat_p3p_p3n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p4c) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n) * zrat_p4c_p4n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p4p) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_p4n) * zrat_p4p_p4n ENDIF ! Nitrogen nutrient from balancing scheme ! Split between nitrate and ammonium according to current ratios IF ( ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_n3n) > 0.0 ) .AND. & & ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_n4n) > 0.0 ) ) THEN zfrac_n3n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_n3n) / & & (trn(ji,jj,jk,jp_fabm_m1+jp_fabm_n3n) + trn(ji,jj,jk,jp_fabm_m1+jp_fabm_n4n)) zfrac_n4n = 1.0 - zfrac_n3n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_n3n) = outincs(ji,jj,jk,i_tracer(1)) * zfrac_n3n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_n4n) = outincs(ji,jj,jk,i_tracer(1)) * zfrac_n4n ENDIF ! Nitrogen zooplankton from balancing scheme ! Split according to current ratios ! Update carbon and phosphorus according to current ratios IF ( ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z4c) > 0.0 ) .AND. & & ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z5n) > 0.0 ) .AND. & & ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z6n) > 0.0 ) ) THEN zfrac_z4n = (trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z4c) * 0.0126) / & & ((trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z4c) * 0.0126) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z5n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z6n)) zfrac_z5n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z5n) / & & ((trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z4c) * 0.0126) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z5n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z6n)) zfrac_z6n = 1.0 - zfrac_z4n - zfrac_z5n zrat_z4c_z4n = 1.0 / 0.0126 zrat_z5c_z5n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z5c) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z5n) zrat_z5p_z5n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z5p) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z5n) zrat_z6c_z6n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z6c) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z6n) zrat_z6p_z6n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z6p) / trn(ji,jj,jk,jp_fabm_m1+jp_fabm_z6n) logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z5n) = outincs(ji,jj,jk,i_tracer(3)) * zfrac_z5n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z6n) = outincs(ji,jj,jk,i_tracer(3)) * zfrac_z6n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z4c) = outincs(ji,jj,jk,i_tracer(3)) * zfrac_z4n * zrat_z4c_z4n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z5c) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z5n) * zrat_z5c_z5n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z6c) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z6n) * zrat_z6c_z6n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z5p) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z5n) * zrat_z5p_z5n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z6p) = logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_z6n) * zrat_z6p_z6n ENDIF ! Nitrogen detritus from balancing scheme ! Split according to current ratios IF ( ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r4n) > 0.0 ) .AND. & & ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r6n) > 0.0 ) .AND. & & ( trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r8n) > 0.0 ) ) THEN zfrac_r4n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r4n) / & & (trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r4n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r6n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r8n)) zfrac_r6n = trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r6n) / & & (trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r4n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r6n) + & & trn(ji,jj,jk,jp_fabm_m1+jp_fabm_r8n)) zfrac_r8n = 1.0 - zfrac_r4n - zfrac_r6n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_r4n) = outincs(ji,jj,jk,i_tracer(1)) * zfrac_r4n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_r6n) = outincs(ji,jj,jk,i_tracer(1)) * zfrac_r6n logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_r8n) = outincs(ji,jj,jk,i_tracer(1)) * zfrac_r8n ENDIF ! DIC straight from balancing scheme logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_o3c) = outincs(ji,jj,jk,i_tracer(5)) ! Alkalinity straight from balancing scheme logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_o3a) = outincs(ji,jj,jk,i_tracer(6)) END DO END DO END DO ENDIF ! ! Now set MLD to bottom of a level and propagate chlorophyll incs equally through mixed layer ! If balancing, should really relate this back to phytoplankton, but stick with this for now ! DO jj = 1, jpj DO ji = 1, jpi ! jkmax = jpk-1 DO jk = jpk-1, 1, -1 IF ( ( zmld(ji,jj) > gdepw_n(ji,jj,jk) ) .AND. & & ( zmld(ji,jj) <= gdepw_n(ji,jj,jk+1) ) ) THEN zmld(ji,jj) = gdepw_n(ji,jj,jk+1) jkmax = jk ENDIF END DO ! DO jk = 2, jkmax logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_chl1) = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl1) logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_chl2) = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl2) logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_chl3) = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl3) logchl_balinc(ji,jj,jk,jp_fabm_m1+jp_fabm_chl4) = logchl_balinc(ji,jj,1,jp_fabm_m1+jp_fabm_chl4) END DO ! END DO END DO END SUBROUTINE asm_logchl_bal_ersem #else !!---------------------------------------------------------------------- !! Default option : Empty routine !!---------------------------------------------------------------------- CONTAINS SUBROUTINE asm_logchl_bal_ersem( ld_logchlpftinc, npfts, mld_choice_bgc, & & k_maxchlinc, logchl_bkginc, logchl_balinc ) LOGICAL :: ld_logchlpftinc INTEGER :: npfts INTEGER :: mld_choice_bgc REAL :: k_maxchlinc REAL :: logchl_bkginc(:,:,:) REAL :: logchl_balinc(:,:,:,:) WRITE(*,*) 'asm_logchl_bal_ersem: You should not have seen this print! error?' END SUBROUTINE asm_logchl_bal_ersem #endif !!====================================================================== END MODULE asmlogchlbal_ersem