MODULE carbon_cycle_mod ! Author : Josefine GHATTAS, Patricia CADULE IMPLICIT NONE SAVE PRIVATE PUBLIC :: carbon_cycle_init, carbon_cycle ! Variables read from parmeter file physiq.def LOGICAL, PUBLIC :: carbon_cycle_tr ! 3D transport of CO2 in the atmosphere, parameter read in conf_phys LOGICAL, PUBLIC :: carbon_cycle_cpl ! Coupling of CO2 fluxes between LMDZ/ORCHIDEE and LMDZ/OCEAN(PISCES) LOGICAL :: carbon_cycle_emis_comp=.FALSE. ! Calculation of emission compatible ! Scalare values when no transport, from physiq.def REAL :: fos_fuel_s ! carbon_cycle_fos_fuel dans physiq.def REAL :: emis_land_s ! not yet implemented INTEGER :: ntr_co2 ! Number of tracers concerning the carbon cycle INTEGER :: id_fco2_tot ! Tracer index INTEGER :: id_fco2_ocn ! - " - INTEGER :: id_fco2_land ! - " - INTEGER :: id_fco2_land_use ! - " - INTEGER :: id_fco2_fos_fuel ! - " - REAL, DIMENSION(:), ALLOCATABLE :: fos_fuel ! CO2 fossil fuel emission from file [gC/m2/d] REAL, DIMENSION(:), ALLOCATABLE, PUBLIC :: fco2_ocn_day ! flux CO2 from ocean for 1 day (cumulated) [gC/m2/d] REAL, DIMENSION(:), ALLOCATABLE :: fco2_land_day ! flux CO2 from land for 1 day (cumulated) [gC/m2/d] REAL, DIMENSION(:), ALLOCATABLE :: fco2_lu_day ! Emission from land use change for 1 day (cumulated) [gC/m2/d] ! Following 2 fields will be initialized in surf_land_orchidee at each time step REAL, DIMENSION(:), ALLOCATABLE, PUBLIC :: fco2_land_inst ! flux CO2 from land at one time step REAL, DIMENSION(:), ALLOCATABLE, PUBLIC :: fco2_lu_inst ! Emission from land use change at one time step ! Calculated co2 field to be send to the ocean via the coupler and to ORCHIDEE REAL, DIMENSION(:), ALLOCATABLE, PUBLIC :: co2_send CONTAINS SUBROUTINE carbon_cycle_init(tr_seri, aerosol, radio) USE dimphy USE infotrac USE IOIPSL USE surface_data, ONLY : ok_veget, type_ocean IMPLICIT NONE INCLUDE "clesphys.h" INCLUDE "iniprint.h" ! Input argument REAL,DIMENSION(klon,klev,nbtr),INTENT(IN) :: tr_seri ! Concentration Traceur [U/KgA] ! InOutput arguments LOGICAL,DIMENSION(nbtr), INTENT(INOUT) :: aerosol LOGICAL,DIMENSION(nbtr), INTENT(INOUT) :: radio ! Local variables INTEGER :: ierr, it, iiq REAL, DIMENSION(klon) :: tr_seri_sum ! 0) Test for compatibility IF (carbon_cycle_cpl .AND. type_ocean/='couple') & CALL abort_gcm('carbon_cycle_init', 'Coupling with ocean model is needed for carbon_cycle_cpl',1) IF (carbon_cycle_cpl .AND..NOT. ok_veget) & CALL abort_gcm('carbon_cycle_init', 'Coupling with surface land model ORCHDIEE is needed for carbon_cycle_cpl',1) ! 1) Check if transport of one tracer flux CO2 or 4 separated tracers IF (carbon_cycle_tr) THEN id_fco2_tot=0 id_fco2_ocn=0 id_fco2_land=0 id_fco2_land_use=0 id_fco2_fos_fuel=0 ! Search in tracer list DO it=1,nbtr iiq=niadv(it+2) IF (tname(iiq) == "fCO2" ) THEN id_fco2_tot=it ELSE IF (tname(iiq) == "fCO2_ocn" ) THEN id_fco2_ocn=it ELSE IF (tname(iiq) == "fCO2_land" ) THEN id_fco2_land=it ELSE IF (tname(iiq) == "fCO2_land_use" ) THEN id_fco2_land_use=it ELSE IF (tname(iiq) == "fCO2_fos_fuel" ) THEN id_fco2_fos_fuel=it END IF END DO ! Count tracers found IF (id_fco2_tot /= 0 .AND. & id_fco2_ocn==0 .AND. id_fco2_land==0 .AND. id_fco2_land_use==0 .AND. id_fco2_fos_fuel==0) THEN ! transport 1 tracer flux CO2 ntr_co2 = 1 ELSE IF (id_fco2_tot==0 .AND. & id_fco2_ocn /=0 .AND. id_fco2_land/=0 .AND. id_fco2_land_use/=0 .AND. id_fco2_fos_fuel/=0) THEN ! transport 4 tracers seperatively ntr_co2 = 4 ELSE CALL abort_gcm('carbon_cycle_init', 'error in coherence between traceur.def and gcm.def',1) END IF ! Definition of control varaiables for the tracers DO it=1,nbtr IF (it==id_fco2_tot .OR. it==id_fco2_ocn .OR. it==id_fco2_land .OR. & it==id_fco2_land_use .OR. it==id_fco2_fos_fuel) THEN aerosol(it) = .FALSE. radio(it) = .FALSE. END IF END DO ELSE ! No transport of CO2 ntr_co2 = 0 END IF ! carbon_cycle_tr ! 2) Allocate variable for CO2 fossil fuel emission IF (carbon_cycle_tr) THEN ! Allocate 2D variable ALLOCATE(fos_fuel(klon), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 1',1) ELSE ! No transport : read value from .def fos_fuel_s = 0. CALL getin ('carbon_cycle_fos_fuel',fos_fuel_s) WRITE(lunout,*) 'carbon_cycle_fos_fuel = ', fos_fuel_s END IF ! 3) Allocate and initialize fluxes IF (carbon_cycle_cpl) THEN IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 2',1) ALLOCATE(fco2_land_day(klon), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 3',1) ALLOCATE(fco2_lu_day(klon), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 4',1) fco2_land_day(:) = 0. ! JG : Doit prend valeur de restart fco2_lu_day(:) = 0. ! JG : Doit prend valeur de restart ! fco2_ocn_day is allocated in cpl_mod ! fco2_land_inst and fco2_lu_inst are allocated in surf_land_orchidee ALLOCATE(co2_send(klon), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 7',1) ! Calculate using restart tracer values IF (carbon_cycle_tr) THEN IF (ntr_co2==1) THEN co2_send(:) = tr_seri(:,1,id_fco2_tot) + co2_ppm0 ELSE ! ntr_co2==4 ! Calculate the delta CO2 flux tr_seri_sum(:) = tr_seri(:,1,id_fco2_fos_fuel) + tr_seri(:,1,id_fco2_land_use) + & tr_seri(:,1,id_fco2_land) + tr_seri(:,1,id_fco2_ocn) co2_send(:) = tr_seri_sum(:) + co2_ppm0 END IF ELSE ! Send a scalare value in 2D variable to ocean and land model (PISCES and ORCHIDEE) co2_send(:) = co2_ppm END IF ELSE IF (carbon_cycle_tr) THEN ! No coupling of CO2 fields : ! corresponding fields will instead be read from files ALLOCATE(fco2_ocn_day(klon), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 8',1) ALLOCATE(fco2_land_day(klon), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 9',1) ALLOCATE(fco2_lu_day(klon), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 10',1) END IF END IF ! 4) Read parmeter for calculation of emission compatible IF (.NOT. carbon_cycle_tr) THEN carbon_cycle_emis_comp=.FALSE. CALL getin('carbon_cycle_emis_comp',carbon_cycle_emis_comp) WRITE(lunout,*) 'carbon_cycle_emis_comp = ',carbon_cycle_emis_comp END IF END SUBROUTINE carbon_cycle_init ! ! ! SUBROUTINE carbon_cycle(nstep, pdtphys, pctsrf, tr_seri) USE infotrac USE dimphy USE mod_phys_lmdz_transfert_para, ONLY : reduce_sum USE phys_cal_mod, ONLY : mth_cur, mth_len USE phys_cal_mod, ONLY : day_cur USE comgeomphy IMPLICIT NONE INCLUDE "clesphys.h" INCLUDE "indicesol.h" ! In/Output arguments INTEGER,INTENT(IN) :: nstep ! time step in physiq REAL,INTENT(IN) :: pdtphys ! length of time step in physiq (sec) REAL,DIMENSION(klon,nbsrf),INTENT(IN) :: pctsrf ! Pourcentage de sol f(nature du sol) REAL, DIMENSION(klon,klev,nbtr), INTENT(INOUT) :: tr_seri ! Local variables LOGICAL :: newmonth ! indicates if a new month just started LOGICAL :: newday ! indicates if a new day just started LOGICAL :: endday ! indicated if last time step in a day REAL, PARAMETER :: fact=1.E-15/2.12 ! transformation factor from gC/m2/day => ppm/m2/day REAL, DIMENSION(klon) :: fco2_tmp, tr_seri_sum REAL :: sumtmp REAL :: airetot ! Total area the earth REAL :: delta_co2_ppm ! -) Calculate logicals indicating if it is a new month, new day or the last time step in a day (end day) newday = .FALSE.; endday = .FALSE.; newmonth = .FALSE. IF (MOD(nstep,INT(86400./pdtphys))==1) newday=.TRUE. IF (MOD(nstep,INT(86400./pdtphys))==0) endday=.TRUE. IF (newday .AND. day_cur==1) newmonth=.TRUE. ! -) Read new maps if new month started IF (newmonth .AND. carbon_cycle_tr) THEN CALL read_map2D('fossil_fuel.nc','fos_fuel', mth_cur, .FALSE., fos_fuel) ! division by month lenght to get dayly value fos_fuel(:) = fos_fuel(:)/mth_len IF (.NOT. carbon_cycle_cpl) THEN ! Get dayly values from monthly fluxes CALL read_map2D('fl_co2_ocean.nc','CO2_OCN',mth_cur,.FALSE.,fco2_ocn_day) CALL read_map2D('fl_co2_land.nc','CO2_LAND', mth_cur,.FALSE.,fco2_land_day) CALL read_map2D('fl_co2_land_use.nc','CO2_LAND_USE',mth_cur,.FALSE.,fco2_lu_day) END IF END IF ! -) Update tracers at beginning of a new day. Beginning of a new day correspond to a new coupling period in cpl_mod. IF (newday) THEN IF (carbon_cycle_tr) THEN ! Update tracers IF (ntr_co2 == 1) THEN ! Calculate the new flux CO2 tr_seri(:,1,id_fco2_tot) = tr_seri(:,1,id_fco2_tot) + & (fos_fuel(:) + & fco2_lu_day(:) * pctsrf(:,is_ter) + & fco2_land_day(:)* pctsrf(:,is_ter) + & fco2_ocn_day(:) * pctsrf(:,is_oce)) * fact ELSE ! ntr_co2 == 4 tr_seri(:,1,id_fco2_fos_fuel) = tr_seri(:,1,id_fco2_fos_fuel) + fos_fuel(:) * fact ! [ppm/m2/day] tr_seri(:,1,id_fco2_land_use) = tr_seri(:,1,id_fco2_land_use) + & fco2_lu_day(:) *pctsrf(:,is_ter)*fact ! [ppm/m2/day] tr_seri(:,1,id_fco2_land) = tr_seri(:,1,id_fco2_land) + & fco2_land_day(:)*pctsrf(:,is_ter)*fact ! [ppm/m2/day] tr_seri(:,1,id_fco2_ocn) = tr_seri(:,1,id_fco2_ocn) + & fco2_ocn_day(:) *pctsrf(:,is_oce)*fact ! [ppm/m2/day] END IF ELSE ! no transport IF (carbon_cycle_cpl) THEN IF (carbon_cycle_emis_comp) THEN ! Calcul emission compatible a partir des champs 2D et co2_ppm !!! TO DO!! CALL abort_gcm('carbon_cycle', ' Option carbon_cycle_emis_comp not yet implemented',1) END IF END IF END IF ! carbon_cycle_tr ! Reset cumluative variables IF (carbon_cycle_cpl) THEN fco2_land_day(:) = 0. fco2_lu_day(:) = 0. END IF END IF ! newday ! -) Cumulate fluxes from ORCHIDEE at each timestep IF (carbon_cycle_cpl) THEN fco2_land_day(:) = fco2_land_day(:) + fco2_land_inst(:) fco2_lu_day(:) = fco2_lu_day(:) + fco2_lu_inst(:) END IF ! -) At the end of a new day, calculate a mean scalare value of CO2 to be used by ! the radiation scheme (instead of reading value from .def) ! JG : Ici on utilise uniquement le traceur du premier couche du modele. Est-ce que c'est correcte ? IF (endday) THEN ! Calculte total area of the earth surface CALL reduce_sum(SUM(airephy),airetot) IF (carbon_cycle_tr) THEN IF (ntr_co2 == 1) THEN ! Calculate mean value of tracer CO2 to get an scalare value to be used in the ! radiation scheme (instead of reading value from .def) ! Mean value weighted with the grid cell area ! Calculate mean value fco2_tmp(:) = tr_seri(:,1,id_fco2_tot) * airephy(:) CALL reduce_sum(SUM(fco2_tmp),sumtmp) co2_ppm = sumtmp/airetot + co2_ppm0 ELSE ! ntr_co2 == 4 ! Calculate the delta CO2 flux tr_seri_sum(:) = tr_seri(:,1,id_fco2_fos_fuel) + tr_seri(:,1,id_fco2_land_use) + & tr_seri(:,1,id_fco2_land) + tr_seri(:,1,id_fco2_ocn) ! Calculate mean value of delta CO2 flux fco2_tmp(:) = tr_seri_sum(:) * airephy(:) CALL reduce_sum(SUM(fco2_tmp),sumtmp) delta_co2_ppm = sumtmp/airetot ! Add initial value for co2_ppm to delta value co2_ppm = delta_co2_ppm + co2_ppm0 END IF ELSE IF (carbon_cycle_cpl) THEN ! no carbon_cycle_tr ! Calculate the total CO2 flux and integrate to get scalare value for the radiation scheme fco2_tmp(:) = (fos_fuel(:) + (fco2_lu_day(:) + fco2_land_day(:))*pctsrf(:,is_ter) & + fco2_ocn_day(:)*pctsrf(:,is_oce)) * fact ! Calculate mean value fco2_tmp(:) = fco2_tmp(:) * airephy(:) CALL reduce_sum(SUM(fco2_tmp),sumtmp) delta_co2_ppm = sumtmp/airetot ! Update current value of the atmospheric co2_ppm co2_ppm = co2_ppm + delta_co2_ppm END IF ! carbon_cycle_tr ! transformation of the atmospheric CO2 concentration for the radiation code RCO2 = co2_ppm * 1.0e-06 * 44.011/28.97 END IF ! Calculate CO2 flux to send to ocean and land models : PISCES and ORCHIDEE IF (endday .AND. carbon_cycle_cpl) THEN IF (carbon_cycle_tr) THEN IF (ntr_co2==1) THEN co2_send(:) = tr_seri(:,1,id_fco2_tot) + co2_ppm0 ELSE ! ntr_co2 == 4 co2_send(:) = tr_seri_sum(:) + co2_ppm0 END IF ELSE ! Send a scalare value in 2D variable to ocean and land model (PISCES and ORCHIDEE) co2_send(:) = co2_ppm END IF END IF END SUBROUTINE carbon_cycle END MODULE carbon_cycle_mod