Changeset 2528 for trunk/NEMOGCM/NEMO/TOP_SRC/PISCES/p4zflx.F90
- Timestamp:
- 2010-12-27T18:33:53+01:00 (13 years ago)
- File:
-
- 1 edited
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trunk/NEMOGCM/NEMO/TOP_SRC/PISCES/p4zflx.F90
- Property svn:executable deleted
r1836 r2528 28 28 #endif 29 29 USE lib_mpp 30 USE lib_fortran 30 31 31 32 IMPLICIT NONE … … 33 34 34 35 PUBLIC p4z_flx 35 36 REAL(wp) :: & ! pre-industrial atmospheric [co2] (ppm) 37 atcox = 0.20946 , & !: 38 atcco2 = 278. !: 39 40 REAL(wp) :: & 41 xconv = 0.01/3600 !: coefficients for conversion 42 43 INTEGER :: nspyr !: number of timestep per year 44 45 #if defined key_cpl_carbon_cycle 46 REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & 47 oce_co2 !: ocean carbon flux 48 REAL(wp) :: & 49 t_atm_co2_flx, & !: Total atmospheric carbon flux per year 50 t_oce_co2_flx !: Total ocean carbon flux per year 51 #endif 36 PUBLIC p4z_flx_init 37 38 REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: oce_co2 !: ocean carbon flux 39 REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: satmco2 !: atmospheric pco2 40 REAL(wp) :: t_oce_co2_flx !: Total ocean carbon flux 41 REAL(wp) :: t_atm_co2_flx !: global mean of atmospheric pco2 42 REAL(wp) :: area !: ocean surface 43 REAL(wp) :: atcco2 = 278. !: pre-industrial atmospheric [co2] (ppm) 44 REAL(wp) :: atcox = 0.20946 !: 45 REAL(wp) :: xconv = 0.01/3600 !: coefficients for conversion 52 46 53 47 !!* Substitution 54 48 # include "top_substitute.h90" 55 49 !!---------------------------------------------------------------------- 56 !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007)50 !! NEMO/TOP 3.3 , NEMO Consortium (2010) 57 51 !! $Id$ 58 !! Software governed by the CeCILL licence ( modipsl/doc/NEMO_CeCILL.txt)52 !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) 59 53 !!---------------------------------------------------------------------- 60 54 … … 75 69 REAL(wp) :: zph, zah2, zbot, zdic, zalk, zsch_o2, zalka, zsch_co2 76 70 REAL(wp), DIMENSION(jpi,jpj) :: zkgco2, zkgo2, zh2co3 77 #if defined key_ trc_diaadd&& defined key_iomput78 REAL(wp), DIMENSION(jpi,jpj) :: z cflx, zoflx, zkg, zdpco2, zdpo271 #if defined key_diatrc && defined key_iomput 72 REAL(wp), DIMENSION(jpi,jpj) :: zoflx, zkg, zdpco2, zdpo2 79 73 #endif 80 74 CHARACTER (len=25) :: charout 81 75 82 76 !!--------------------------------------------------------------------- 83 84 85 IF( kt == nittrc000 ) CALL p4z_flx_init ! Initialization (first time-step only)86 77 87 78 ! SURFACE CHEMISTRY (PCO2 AND [H+] IN 88 79 ! SURFACE LAYER); THE RESULT OF THIS CALCULATION 89 80 ! IS USED TO COMPUTE AIR-SEA FLUX OF CO2 81 82 #if defined key_cpl_carbon_cycle 83 satmco2(:,:) = atm_co2(:,:) 84 #endif 90 85 91 86 DO jrorr = 1, 10 … … 128 123 !CDIR NOVERRCHK 129 124 DO ji = 1, jpi 130 ztc = MIN( 35., t n(ji,jj,1) )125 ztc = MIN( 35., tsn(ji,jj,1,jp_tem) ) 131 126 ztc2 = ztc * ztc 132 127 ztc3 = ztc * ztc2 … … 138 133 ! Compute the piston velocity for O2 and CO2 139 134 zkgwan = 0.3 * zws + 2.5 * ( 0.5246 + 0.016256 * ztc + 0.00049946 * ztc2 ) 140 # if defined key_ off_degrad135 # if defined key_degrad 141 136 zkgwan = zkgwan * xconv * ( 1.- fr_i(ji,jj) ) * tmask(ji,jj,1) * facvol(ji,jj,1) 142 137 #else … … 152 147 DO ji = 1, jpi 153 148 ! Compute CO2 flux for the sea and air 154 #if ! defined key_cpl_carbon_cycle 155 zfld = atcco2 * tmask(ji,jj,1) * chemc(ji,jj,1) * zkgco2(ji,jj) 149 zfld = satmco2(ji,jj) * tmask(ji,jj,1) * chemc(ji,jj,1) * zkgco2(ji,jj) 156 150 zflu = zh2co3(ji,jj) * tmask(ji,jj,1) * zkgco2(ji,jj) 157 #else158 zfld = atm_co2(ji,jj) * tmask(ji,jj,1) * chemc(ji,jj,1) * zkgco2(ji,jj)159 zflu = zh2co3(ji,jj) * tmask(ji,jj,1) * zkgco2(ji,jj)160 ! compute flux of carbon161 151 oce_co2(ji,jj) = ( zfld - zflu ) * rfact & 162 152 & * e1t(ji,jj) * e2t(ji,jj) * tmask(ji,jj,1) * 1000. 163 #endif 153 ! compute the trend 164 154 tra(ji,jj,1,jpdic) = tra(ji,jj,1,jpdic) + ( zfld - zflu ) / fse3t(ji,jj,1) 165 155 … … 169 159 tra(ji,jj,1,jpoxy) = tra(ji,jj,1,jpoxy) + ( zfld16 - zflu16 ) / fse3t(ji,jj,1) 170 160 171 #if defined key_ trc_diaadd161 #if defined key_diatrc 172 162 ! Save diagnostics 173 163 # if ! defined key_iomput 174 trc2d(ji,jj,jp_pcs0_2d ) = ( zfld - zflu ) * 1000. * tmask(ji,jj,1) 164 zfact = 1. / ( e1t(ji,jj) * e2t(ji,jj) ) / rfact 165 trc2d(ji,jj,jp_pcs0_2d ) = oce_co2(ji,jj) * zfact 175 166 trc2d(ji,jj,jp_pcs0_2d + 1) = ( zfld16 - zflu16 ) * 1000. * tmask(ji,jj,1) 176 167 trc2d(ji,jj,jp_pcs0_2d + 2) = zkgco2(ji,jj) * tmask(ji,jj,1) 177 trc2d(ji,jj,jp_pcs0_2d + 3) = ( atcco2- zh2co3(ji,jj) / ( chemc(ji,jj,1) + rtrn ) ) &168 trc2d(ji,jj,jp_pcs0_2d + 3) = ( satmco2(ji,jj) - zh2co3(ji,jj) / ( chemc(ji,jj,1) + rtrn ) ) & 178 169 & * tmask(ji,jj,1) 179 170 # else 180 zcflx(ji,jj) = ( zfld - zflu ) * 1000. * tmask(ji,jj,1)181 171 zoflx(ji,jj) = ( zfld16 - zflu16 ) * 1000. * tmask(ji,jj,1) 182 172 zkg (ji,jj) = zkgco2(ji,jj) * tmask(ji,jj,1) 183 zdpco2(ji,jj) = ( atcco2 - zh2co3(ji,jj) / ( chemc(ji,jj,1) + rtrn ) ) & 184 & * tmask(ji,jj,1) 185 zdpo2 (ji,jj) = ( atcox - trn(ji,jj,1,jpoxy) / ( chemc(ji,jj,2) + rtrn ) ) & 186 & * tmask(ji,jj,1) 173 zdpco2(ji,jj) = ( satmco2(ji,jj) - zh2co3(ji,jj) / ( chemc(ji,jj,1) + rtrn ) ) * tmask(ji,jj,1) 174 zdpo2 (ji,jj) = ( atcox - trn(ji,jj,1,jpoxy) / ( chemc(ji,jj,2) + rtrn ) ) * tmask(ji,jj,1) 187 175 # endif 188 176 #endif … … 190 178 END DO 191 179 192 #if defined key_cpl_carbon_cycle 193 ! Total Flux of Carbon 194 DO jj = 1, jpj 195 DO ji = 1, jpi 196 t_atm_co2_flx = t_atm_co2_flx + atm_co2(ji,jj) * tmask_i(ji,jj) 197 t_oce_co2_flx = t_oce_co2_flx + oce_co2(ji,jj) * tmask_i(ji,jj) 198 END DO 199 END DO 200 201 IF( MOD( kt, nspyr ) == 0 ) THEN 202 IF( lk_mpp ) THEN 203 CALL mpp_sum( t_atm_co2_flx ) ! sum over the global domain 204 CALL mpp_sum( t_oce_co2_flx ) ! sum over the global domain 205 ENDIF 206 ! Conversion in GtC/yr ; negative for outgoing from ocean 207 t_oce_co2_flx = (-1.) * t_oce_co2_flx * 12. / 1.e15 208 ! 209 WRITE(numout,*) ' Atmospheric pCO2 :' 210 WRITE(numout,*) '-------------------- : ',kt,' ',t_atm_co2_flx 211 WRITE(numout,*) '(ppm)' 212 WRITE(numout,*) 'Total Flux of Carbon out of the ocean :' 213 WRITE(numout,*) '-------------------- : ',t_oce_co2_flx 214 WRITE(numout,*) '(GtC/yr)' 215 t_atm_co2_flx = 0. 216 t_oce_co2_flx = 0. 217 # if defined key_iomput 218 CALL iom_put( "tatpco2" , t_atm_co2_flx ) 219 CALL iom_put( "tco2flx" , t_oce_co2_flx ) 220 #endif 180 t_oce_co2_flx = t_oce_co2_flx + glob_sum( oce_co2(:,:) ) ! Cumulative Total Flux of Carbon 181 IF( kt == nitend ) THEN 182 t_atm_co2_flx = glob_sum( satmco2(:,:) * e1t(:,:) * e2t(:,:) ) ! Total atmospheric pCO2 183 ! 184 t_oce_co2_flx = (-1.) * t_oce_co2_flx * 12. / 1.e15 ! Conversion in PgC ; negative for out of the ocean 185 t_atm_co2_flx = t_atm_co2_flx / area ! global mean of atmospheric pCO2 186 ! 187 IF( lwp) THEN 188 WRITE(numout,*) 189 WRITE(numout,*) ' Global mean of atmospheric pCO2 (ppm) at it= ', kt, ' date= ', ndastp 190 WRITE(numout,*) '------------------------------------------------------- : ',t_atm_co2_flx 191 WRITE(numout,*) 192 WRITE(numout,*) ' Cumulative total Flux of Carbon out of the ocean (PgC) :' 193 WRITE(numout,*) '------------------------------------------------------- ',t_oce_co2_flx 194 ENDIF 195 ! 221 196 ENDIF 222 #endif223 197 224 198 IF(ln_ctl) THEN ! print mean trends (used for debugging) … … 228 202 ENDIF 229 203 230 # if defined key_ trc_diaadd&& defined key_iomput231 CALL iom_put( "Cflx" , zcflx)204 # if defined key_diatrc && defined key_iomput 205 CALL iom_put( "Cflx" , oce_co2(:,:) / ( e1t(:,:) * e2t(:,:) ) / rfact ) 232 206 CALL iom_put( "Oflx" , zoflx ) 233 207 CALL iom_put( "Kg" , zkg ) … … 246 220 !! 247 221 !! ** Method : Read the nampisext namelist and check the parameters 248 !! called at the first timestep (nit trc000)222 !! called at the first timestep (nit000) 249 223 !! ** input : Namelist nampisext 250 224 !! … … 263 237 ENDIF 264 238 265 ! number of time step per year 266 nspyr = INT( nyear_len(1) * rday / rdt ) 267 268 #if defined key_cpl_carbon_cycle 239 ! interior global domain surface 240 area = glob_sum( e1t(:,:) * e2t(:,:) ) 241 269 242 ! Initialization of Flux of Carbon 270 oce_co2(:,:) = 0. 271 t_atm_co2_flx = 0. 272 t_oce_co2_flx = 0. 273 #endif 243 oce_co2(:,:) = 0._wp 244 t_atm_co2_flx = 0._wp 245 ! Initialisation of atmospheric pco2 246 satmco2(:,:) = atcco2 247 t_oce_co2_flx = 0._wp 274 248 275 249 END SUBROUTINE p4z_flx_init
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