MODULE carbon_cycle_mod ! Controle module for the carbon CO2 tracers : ! - Identification ! - Get concentrations comming from coupled model or read from file to tracers ! - Calculate new RCO2 for radiation scheme ! - Calculate new carbon flux for sending to coupled models (PISCES and ORCHIDEE) ! ! 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 !$OMP THREADPRIVATE(carbon_cycle_tr) LOGICAL, PUBLIC :: carbon_cycle_cpl ! Coupling of CO2 fluxes between LMDZ/ORCHIDEE and LMDZ/OCEAN(PISCES) !$OMP THREADPRIVATE(carbon_cycle_cpl) LOGICAL :: carbon_cycle_emis_comp=.FALSE. ! Calculation of emission compatible !$OMP THREADPRIVATE(carbon_cycle_emis_comp) LOGICAL :: RCO2_inter ! RCO2 interactive : if true calculate new value RCO2 for the radiation scheme !$OMP THREADPRIVATE(RCO2_inter) ! Scalare values when no transport, from physiq.def REAL :: fos_fuel_s ! carbon_cycle_fos_fuel dans physiq.def !$OMP THREADPRIVATE(fos_fuel_s) REAL :: emis_land_s ! not yet implemented !$OMP THREADPRIVATE(emis_land_s) REAL :: airetot ! Total area of the earth surface !$OMP THREADPRIVATE(airetot) INTEGER :: ntr_co2 ! Number of tracers concerning the carbon cycle !$OMP THREADPRIVATE(ntr_co2) ! fco2_ocn_day : flux CO2 from ocean for 1 day (cumulated) [gC/m2/d]. Allocation and initalization done in cpl_mod REAL, DIMENSION(:), ALLOCATABLE, PUBLIC :: fco2_ocn_day !$OMP THREADPRIVATE(fco2_ocn_day) REAL, DIMENSION(:), ALLOCATABLE :: fco2_land_day ! flux CO2 from land for 1 day (cumulated) [gC/m2/d] !$OMP THREADPRIVATE(fco2_land_day) REAL, DIMENSION(:), ALLOCATABLE :: fco2_lu_day ! Emission from land use change for 1 day (cumulated) [gC/m2/d] !$OMP THREADPRIVATE(fco2_lu_day) REAL, DIMENSION(:,:), ALLOCATABLE :: dtr_add ! Tracer concentration to be injected !$OMP THREADPRIVATE(dtr_add) ! Following 2 fields will be allocated and initialized in surf_land_orchidee REAL, DIMENSION(:), ALLOCATABLE, PUBLIC :: fco2_land_inst ! flux CO2 from land at one time step !$OMP THREADPRIVATE(fco2_land_inst) REAL, DIMENSION(:), ALLOCATABLE, PUBLIC :: fco2_lu_inst ! Emission from land use change at one time step !$OMP THREADPRIVATE(fco2_lu_inst) ! Calculated co2 field to be send to the ocean via the coupler and to ORCHIDEE REAL, DIMENSION(:), ALLOCATABLE, PUBLIC :: co2_send ! Field allocated in phyetat0 !$OMP THREADPRIVATE(co2_send) TYPE, PUBLIC :: co2_trac_type CHARACTER(len = 8) :: name ! Tracer name in tracer.def INTEGER :: id ! Index in total tracer list, tr_seri CHARACTER(len=30) :: file ! File name LOGICAL :: cpl ! True if this tracers is coupled from ORCHIDEE or PISCES. ! False if read from file. INTEGER :: updatefreq ! Frequence to inject in second INTEGER :: readstep ! Actual time step to read in file LOGICAL :: updatenow ! True if this tracer should be updated this time step END TYPE co2_trac_type INTEGER,PARAMETER :: maxco2trac=5 ! Maximum number of different CO2 fluxes TYPE(co2_trac_type), DIMENSION(maxco2trac) :: co2trac CONTAINS SUBROUTINE carbon_cycle_init(tr_seri, pdtphys, aerosol, radio) ! This subroutine is called from traclmdz_init, only at first timestep. ! - Read controle parameters from .def input file ! - Search for carbon tracers and set default values ! - Allocate variables ! - Test for compatibility USE dimphy USE comgeomphy USE mod_phys_lmdz_transfert_para USE infotrac USE IOIPSL USE surface_data, ONLY : ok_veget, type_ocean USE phys_cal_mod, ONLY : mth_len IMPLICIT NONE INCLUDE "clesphys.h" INCLUDE "iniprint.h" ! Input argument REAL,DIMENSION(klon,klev,nbtr),INTENT(IN) :: tr_seri ! Concentration Traceur [U/KgA] REAL,INTENT(IN) :: pdtphys ! length of time step in physiq (sec) ! InOutput arguments LOGICAL,DIMENSION(nbtr), INTENT(INOUT) :: aerosol LOGICAL,DIMENSION(nbtr), INTENT(INOUT) :: radio ! Local variables INTEGER :: ierr, it, iiq, itc INTEGER :: teststop ! 1) Read controle parameters from .def input file ! ------------------------------------------------ ! Read fosil fuel value if no transport IF (.NOT. carbon_cycle_tr) THEN fos_fuel_s = 0. CALL getin ('carbon_cycle_fos_fuel',fos_fuel_s) WRITE(lunout,*) 'carbon_cycle_fos_fuel = ', fos_fuel_s END IF ! Read parmeter for calculation compatible emission 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 IF (carbon_cycle_emis_comp) THEN CALL abort_gcm('carbon_cycle_init', 'carbon_cycle_emis_comp option not yet implemented!!',1) END IF END IF ! Read parameter for interactive calculation of the CO2 value for the radiation scheme RCO2_inter=.FALSE. CALL getin('RCO2_inter',RCO2_inter) WRITE(lunout,*) 'RCO2_inter = ', RCO2_inter IF (RCO2_inter) THEN WRITE(lunout,*) 'RCO2 will be recalculated once a day' WRITE(lunout,*) 'RCO2 initial = ', RCO2 END IF ! 2) Search for carbon tracers and set default values ! --------------------------------------------------- itc=0 DO it=1,nbtr iiq=niadv(it+2) SELECT CASE(tname(iiq)) CASE("fCO2_ocn") itc = itc + 1 co2trac(itc)%name='fCO2_ocn' co2trac(itc)%id=it co2trac(itc)%file='fl_co2_ocean.nc' IF (carbon_cycle_cpl .AND. type_ocean=='couple') THEN co2trac(itc)%cpl=.TRUE. co2trac(itc)%updatefreq = 86400 ! Once a day as the coupling with OASIS/PISCES ELSE co2trac(itc)%cpl=.FALSE. co2trac(itc)%updatefreq = 86400*mth_len ! Once a month END IF CASE("fCO2_land") itc = itc + 1 co2trac(itc)%name='fCO2_land' co2trac(itc)%id=it co2trac(itc)%file='fl_co2_land.nc' IF (carbon_cycle_cpl .AND. ok_veget) THEN co2trac(itc)%cpl=.TRUE. co2trac(itc)%updatefreq = INT(pdtphys) ! Each timestep as the coupling with ORCHIDEE ELSE co2trac(itc)%cpl=.FALSE. ! co2trac(itc)%updatefreq = 10800 ! 10800sec = 3H co2trac(itc)%updatefreq = 86400*mth_len ! Once a month END IF CASE("fCO2_land_use") itc = itc + 1 co2trac(itc)%name='fCO2_land_use' co2trac(itc)%id=it co2trac(itc)%file='fl_co2_land_use.nc' IF (carbon_cycle_cpl .AND. ok_veget) THEN co2trac(it)%cpl=.TRUE. co2trac(itc)%updatefreq = INT(pdtphys) ! Each timestep as the coupling with ORCHIDEE ELSE co2trac(itc)%cpl=.FALSE. co2trac(itc)%updatefreq = 10800 ! 10800sec = 3H END IF CASE("fCO2_fos_fuel") itc = itc + 1 co2trac(itc)%name='fCO2_fos_fuel' co2trac(itc)%id=it co2trac(itc)%file='fossil_fuel.nc' co2trac(itc)%cpl=.FALSE. ! This tracer always read from file ! co2trac(itc)%updatefreq = 86400 ! 86400sec = 24H Cadule case co2trac(itc)%updatefreq = 86400*mth_len ! Once a month CASE("fCO2_bbg") itc = itc + 1 co2trac(itc)%name='fCO2_bbg' co2trac(itc)%id=it co2trac(itc)%file='fl_co2_bbg.nc' co2trac(itc)%cpl=.FALSE. ! This tracer always read from file co2trac(itc)%updatefreq = 86400*mth_len ! Once a month CASE("fCO2") ! fCO2 : One tracer transporting the total CO2 flux itc = itc + 1 co2trac(itc)%name='fCO2' co2trac(itc)%id=it co2trac(itc)%file='fl_co2.nc' IF (carbon_cycle_cpl) THEN co2trac(itc)%cpl=.TRUE. ELSE co2trac(itc)%cpl=.FALSE. END IF co2trac(itc)%updatefreq = 86400 ! DOES THIS WORK ???? Problematic due to implementation of the coupled fluxes... CALL abort_gcm('carbon_cycle_init','transport of total CO2 has to be implemented and tested',1) END SELECT END DO ! Total number of carbon CO2 tracers ntr_co2 = itc ! Definition of control varaiables for the tracers DO it=1,ntr_co2 aerosol(co2trac(it)%id) = .FALSE. radio(co2trac(it)%id) = .FALSE. END DO ! Vector indicating which timestep to read for each tracer ! Always start read in the beginning of the file co2trac(:)%readstep = 0 ! 3) Allocate variables ! --------------------- ! Allocate vector for storing fluxes to inject ALLOCATE(dtr_add(klon,maxco2trac), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 11',1) ! Allocate variables for cumulating fluxes from ORCHIDEE IF (RCO2_inter) THEN IF (.NOT. carbon_cycle_tr .AND. carbon_cycle_cpl) THEN ALLOCATE(fco2_land_day(klon), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 2',1) fco2_land_day(1:klon) = 0. ALLOCATE(fco2_lu_day(klon), stat=ierr) IF (ierr /= 0) CALL abort_gcm('carbon_cycle_init', 'pb in allocation 3',1) fco2_lu_day(1:klon) = 0. END IF END IF ! 4) Test for compatibility ! ------------------------- ! IF (carbon_cycle_cpl .AND. type_ocean/='couple') THEN ! WRITE(lunout,*) 'Coupling with ocean model is needed for carbon_cycle_cpl' ! CALL abort_gcm('carbon_cycle_init', 'coupled ocean is needed for carbon_cycle_cpl',1) ! END IF ! ! IF (carbon_cycle_cpl .AND..NOT. ok_veget) THEN ! WRITE(lunout,*) 'Coupling with surface land model ORCHDIEE is needed for carbon_cycle_cpl' ! CALL abort_gcm('carbon_cycle_init', 'ok_veget is needed for carbon_cycle_cpl',1) ! END IF ! Compiler test : following should never happen teststop=0 DO it=1,teststop CALL abort_gcm('carbon_cycle_init', 'Entering loop from 1 to 0',1) END DO IF (ntr_co2==0) THEN ! No carbon tracers found in tracer.def. It is not possible to do carbon cycle WRITE(lunout,*) 'No carbon tracers found in tracer.def. Not ok with carbon_cycle_tr and/or carbon_cycle_cp' CALL abort_gcm('carbon_cycle_init', 'No carbon tracers found in tracer.def',1) END IF ! 5) Calculate total area of the earth surface ! -------------------------------------------- CALL reduce_sum(SUM(airephy),airetot) CALL bcast(airetot) END SUBROUTINE carbon_cycle_init SUBROUTINE carbon_cycle(nstep, pdtphys, pctsrf, tr_seri, source) ! Subroutine for injection of co2 in the tracers ! ! - Find out if it is time to update ! - Get tracer from coupled model or from file ! - Calculate new RCO2 value for the radiation scheme ! - Calculate CO2 flux to send to ocean and land models (PISCES and ORCHIDEE) USE infotrac USE dimphy USE mod_phys_lmdz_transfert_para 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" INCLUDE "iniprint.h" INCLUDE "YOMCST.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 ! Surface fraction REAL, DIMENSION(klon,klev,nbtr), INTENT(INOUT) :: tr_seri ! All tracers REAL, DIMENSION(klon,nbtr), INTENT(INOUT) :: source ! Source for all tracers ! Local variables INTEGER :: it 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 REAL :: sumtmp REAL :: delta_co2_ppm ! 1) 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. ! 2) For each carbon tracer find out if it is time to inject (update) ! -------------------------------------------------------------------- DO it = 1, ntr_co2 IF ( MOD(nstep,INT(co2trac(it)%updatefreq/pdtphys)) == 1 ) THEN co2trac(it)%updatenow = .TRUE. ELSE co2trac(it)%updatenow = .FALSE. END IF END DO ! 3) Get tracer update ! -------------------------------------- DO it = 1, ntr_co2 IF ( co2trac(it)%updatenow ) THEN IF ( co2trac(it)%cpl ) THEN ! Get tracer from coupled model SELECT CASE(co2trac(it)%name) CASE('fCO2_land') ! from ORCHIDEE dtr_add(:,it) = fco2_land_inst(:)*pctsrf(:,is_ter)*fact ! [ppm/m2/day] CASE('fCO2_land_use') ! from ORCHIDEE dtr_add(:,it) = fco2_lu_inst(:) *pctsrf(:,is_ter)*fact ! [ppm/m2/day] CASE('fCO2_ocn') ! from PISCES dtr_add(:,it) = fco2_ocn_day(:) *pctsrf(:,is_oce)*fact ! [ppm/m2/day] CASE DEFAULT WRITE(lunout,*) 'Error with tracer ',co2trac(it)%name CALL abort_gcm('carbon_cycle', 'No coupling implemented for this tracer',1) END SELECT ELSE ! Read tracer from file co2trac(it)%readstep = co2trac(it)%readstep + 1 ! increment time step in file ! Patricia CALL read_map2D(co2trac(it)%file,'fco2',co2trac(it)%readstep,.FALSE.,dtr_add(:,it)) CALL read_map2D(co2trac(it)%file,'fco2',co2trac(it)%readstep,.TRUE.,dtr_add(:,it)) ! Converte from kgC/m2/h to kgC/m2/s dtr_add(:,it) = dtr_add(:,it)/3600 ! Add individual treatment of values read from file SELECT CASE(co2trac(it)%name) CASE('fCO2_land') dtr_add(:,it) = dtr_add(:,it) *pctsrf(:,is_ter) CASE('fCO2_land_use') dtr_add(:,it) = dtr_add(:,it) *pctsrf(:,is_ter) CASE('fCO2_ocn') dtr_add(:,it) = dtr_add(:,it) *pctsrf(:,is_oce) ! Patricia : ! CASE('fCO2_fos_fuel') ! dtr_add(:,it) = dtr_add(:,it)/mth_len ! co2trac(it)%readstep = 0 ! Always read same value for fossil fuel(Cadule case) END SELECT END IF END IF END DO ! 4) Update co2 tracers : ! Loop over all carbon tracers and add source ! ------------------------------------------------------------------ IF (carbon_cycle_tr) THEN DO it = 1, ntr_co2 IF (.FALSE.) THEN tr_seri(1:klon,1,co2trac(it)%id) = tr_seri(1:klon,1,co2trac(it)%id) + dtr_add(1:klon,it) source(1:klon,co2trac(it)%id) = 0. ELSE source(1:klon,co2trac(it)%id) = dtr_add(1:klon,it) END IF END DO END IF ! 5) Calculations for new CO2 value for the radiation scheme(instead of reading value from .def) ! ---------------------------------------------------------------------------------------------- IF (RCO2_inter) THEN ! Cumulate fluxes from ORCHIDEE at each timestep IF (.NOT. carbon_cycle_tr .AND. carbon_cycle_cpl) THEN IF (newday) THEN ! Reset cumulative variables once a day fco2_land_day(1:klon) = 0. fco2_lu_day(1:klon) = 0. END IF fco2_land_day(1:klon) = fco2_land_day(1:klon) + fco2_land_inst(1:klon) ![gC/m2/day] fco2_lu_day(1:klon) = fco2_lu_day(1:klon) + fco2_lu_inst(1:klon) ![gC/m2/day] END IF ! At the end of a new day, calculate a mean scalare value of CO2 ! JG : Ici on utilise uniquement le traceur du premier couche du modele. Est-ce que c'est correcte ? IF (endday) THEN IF (carbon_cycle_tr) THEN ! Sum all co2 tracers to get the total delta CO2 flux fco2_tmp(:) = 0. DO it = 1, ntr_co2 fco2_tmp(1:klon) = fco2_tmp(1:klon) + tr_seri(1:klon,1,co2trac(it)%id) END DO ELSE IF (carbon_cycle_cpl) THEN ! no carbon_cycle_tr ! Sum co2 fluxes comming from coupled models and parameter for fossil fuel fco2_tmp(1:klon) = fos_fuel_s + ((fco2_lu_day(1:klon) + fco2_land_day(1:klon))*pctsrf(1:klon,is_ter) & + fco2_ocn_day(:)*pctsrf(:,is_oce)) * fact END IF ! Calculate a global mean value of delta CO2 flux fco2_tmp(1:klon) = fco2_tmp(1:klon) * airephy(1:klon) CALL reduce_sum(SUM(fco2_tmp),sumtmp) CALL bcast(sumtmp) delta_co2_ppm = sumtmp/airetot ! Add initial value for co2_ppm and delta value co2_ppm = co2_ppm0 + delta_co2_ppm ! Transformation of atmospheric CO2 concentration for the radiation code RCO2 = co2_ppm * 1.0e-06 * 44.011/28.97 WRITE(lunout,*) 'RCO2 is now updated! RCO2 = ', RCO2 END IF ! endday END IF ! RCO2_inter ! 6) Calculate CO2 flux to send to ocean and land models : PISCES and ORCHIDEE ! ---------------------------------------------------------------------------- IF (carbon_cycle_cpl) THEN IF (carbon_cycle_tr) THEN ! Sum all co2 tracers to get the total delta CO2 flux at first model layer fco2_tmp(:) = 0. DO it = 1, ntr_co2 fco2_tmp(1:klon) = fco2_tmp(1:klon) + tr_seri(1:klon,1,co2trac(it)%id) END DO co2_send(1:klon) = fco2_tmp(1:klon) + co2_ppm0 ELSE ! Send a scalare value in 2D variable to ocean and land model (PISCES and ORCHIDEE) co2_send(1:klon) = co2_ppm END IF END IF END SUBROUTINE carbon_cycle END MODULE carbon_cycle_mod