Changeset 3450 for LMDZ6/trunk/libf/phylmd/tracco2i_mod.F90

Timestamp:

Jan 25, 2019, 7:51:34 PM (6 years ago)

Author:

oboucher

Message:

Various additions for the interactive CO2 cycle

File:

• LMDZ6/trunk/libf/phylmd/tracco2i_mod.F90 (modified) (6 diffs)

LMDZ6/trunk/libf/phylmd/tracco2i_mod.F90

@@ -11 +11 @@
     USE dimphy
     USE infotrac_phy
-    USE geometry_mod, ONLY : cell_area
-    USE carbon_cycle_mod, ONLY : nbcf_in, fields_in, cfname_in, fco2_ocn_day, fco2_ff, fco2_bb
+    USE geometry_mod, ONLY: cell_area
+    USE carbon_cycle_mod, ONLY: id_CO2, nbcf_in, fields_in, cfname_in, fco2_ocn_day, fco2_ff, fco2_bb
+    USE carbon_cycle_mod, ONLY: carbon_cycle_tr, carbon_cycle_rad, RCO2_glo, RCO2_tot
     USE mod_grid_phy_lmdz
-    USE mod_phys_lmdz_mpi_data, ONLY :  is_mpi_root
+    USE mod_phys_lmdz_mpi_data, ONLY: is_mpi_root
     USE mod_phys_lmdz_para, ONLY: gather, bcast, scatter
     USE phys_cal_mod
+    USE phys_state_var_mod, ONLY: pctsrf
+    USE indice_sol_mod, ONLY: nbsrf, is_ter, is_lic, is_oce, is_sic
 
     IMPLICIT NONE
@@ -45 +48 @@
 !----------------
 
-    INTEGER, PARAMETER :: id_CO2=1              !--temporaire OB -- to be changed 
     INTEGER                        :: it, k, i, nb
     REAL, DIMENSION(klon,klev)     :: m_air     ! mass of air in every grid box [kg]
@@ -53 +55 @@
     REAL, DIMENSION(klon_glo,klev) :: m_air_glo ! variable temporaire sur la grille global
 
-
-    INTEGER, SAVE :: mth_pre=0
-!$OMP THREADPRIVATE(mth_pre)
-    REAL, SAVE :: RCO2_glo
-!$OMP THREADPRIVATE(RCO2_glo)
+    INTEGER, SAVE :: mth_pre=0, day_pre=0
+!$OMP THREADPRIVATE(mth_pre, day_pre)
 
     IF (is_mpi_root) THEN
@@ -68 +67 @@
     IF (debutphy) THEN
       IF (MAXVAL(tr_seri(:,:,id_CO2)).LT.1.e-15) THEN 
-        tr_seri(:,:,id_CO2)=280.e-6/RMD*RMCO2
+        !!tr_seri(:,:,id_CO2)=280.e-6/RMD*RMCO2
+        tr_seri(:,:,id_CO2)=400.e-6/RMD*RMCO2 !--initialised to 400 ppm for a test
       ENDIF 
     ENDIF
@@ -85 +85 @@
 
 !--retrieving land and ocean CO2 flux
-!--fCO2_nep comes in unit of g CO2 m-2 dt_stomate-1 
-!--this needs to be changed in ORCHIDEE
     co2land(:)=0.0
     co2ocean(:)=0.0
     DO nb=1, nbcf_in
-      IF (cfname_in(nb) == "fCO2_nep" )   co2land(:)=fields_in(:,nb)*RMCO2/RMC/86400./1000.
-      !!IF (cfname_in(nb) == "fCO2_fgco2" ) co2ocean(:)=fco2_ocn_day(:) !--for now
+!--fCO2_nep comes in unit of kg C m-2 s-1
+!--converting to kg CO2 m-2 s-1
+      IF (cfname_in(nb) == "fCO2_nep" )   co2land(:)=fields_in(:,nb)*RMCO2/RMC*pctsrf(:,is_ter)
+!--fCO2_fgco2 comes in unit of mol C02 m-2 s-1
+!--converting to kg CO2 m-2 s-1 + change sign
+      IF (cfname_in(nb) == "fCO2_fgco2" ) co2ocean(:)=-1.*fco2_ocn_day(:)*RMCO2/1.e3*(pctsrf(:,is_oce)+pctsrf(:,is_sic))
     ENDDO
 
@@ -99 +101 @@
 
 !--computing global mean CO2 for radiation
-!--every timestep for now but enough every month
+!--every timestep for now but enough every day
 !    IF (debutphy.OR.mth_cur.NE.mth_pre) THEN
+!    IF (debutphy.OR.day_cur.NE.day_pre) THEN
       CALL gather(tr_seri(:,:,id_CO2),co2_glo)
       CALL gather(m_air,m_air_glo)
 !$OMP MASTER
-!--conversion from kg CO2/kg air into ppm
+!--compute a global mean CO2 value and print its value in ppm
        IF (is_mpi_root) THEN
-         RCO2_glo=SUM(co2_glo*m_air_glo)/SUM(m_air_glo)*1.e6*RMD/RMCO2
+         RCO2_tot=SUM(co2_glo*m_air_glo)  !--unit kg CO2
+         RCO2_glo=RCO2_tot/SUM(m_air_glo) !--unit kg CO2 / kg air
+         PRINT *,'tracco2i: global CO2 in ppm =', RCO2_glo*1.e6*RMD/RMCO2
+         PRINT *,'tracco2i: total CO2 in kg =', RCO2_tot
        ENDIF
-       PRINT *,'toto in tracco2i: global CO2 in ppm =', RCO2_glo
 !$OMP END MASTER
        CALL bcast(RCO2_glo)
        mth_pre=mth_cur
+       day_pre=day_cur
+!--if not carbon_cycle_tr, then we reinitialize the CO2 each day to its global mean value
+       IF (.NOT.carbon_cycle_tr) THEN 
+         tr_seri(:,:,id_CO2)=RCO2_glo
+       ENDIF
 !    ENDIF