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tracco2i_mod.F90 @ 4999

Last change on this file since 4999 was 4368, checked in by lguez, 2 years ago
Sync latest trunk changes to Ocean_skin
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1	MODULE tracco2i_mod
2	!
3	! This module does the work for the interactive CO2 tracers
4	! Authors: Patricia Cadule and Olivier Boucher
5	!
6	! Purpose and description:
7	! -----------------------
8	! Main routine for the interactive carbon cycle
9	! Gather all carbon fluxes and emissions from ORCHIDEE, PISCES and fossil fuel
10	! Compute the net flux in source field which is used in phytrac
11	! Compute global CO2 mixing ratio for radiation scheme if option is activated
12	! Redistribute CO2 evenly over the atmosphere if transport is desactivated
13	!
14	CONTAINS
15
16	SUBROUTINE tracco2i_init()
17	! This subroutine calls carbon_cycle_init needed to be done before first call to phys_output_write in physiq.
18	USE carbon_cycle_mod, ONLY: carbon_cycle_init, carbon_cycle_cpl
19
20	! Initialize carbon_cycle_mod
21	IF (carbon_cycle_cpl) THEN
22	CALL carbon_cycle_init()
23	ENDIF
24
25	END SUBROUTINE tracco2i_init
26
27	SUBROUTINE tracco2i(pdtphys, debutphy, &
28	xlat, xlon, pphis, pphi, &
29	t_seri, pplay, paprs, tr_seri, source)
30
31	USE dimphy
32	USE infotrac_phy, ONLY: nbtr
33	USE geometry_mod, ONLY: cell_area
34	USE carbon_cycle_mod, ONLY: id_CO2, nbcf_in, fields_in, cfname_in
35	USE carbon_cycle_mod, ONLY: fco2_ocn_day, fco2_ff, fco2_bb, fco2_land, fco2_ocean
36	USE carbon_cycle_mod, ONLY: read_fco2_ocean_cor,var_fco2_ocean_cor,fco2_ocean_cor
37	USE carbon_cycle_mod, ONLY: read_fco2_land_cor,var_fco2_land_cor,fco2_land_cor
38	USE carbon_cycle_mod, ONLY: co2_send
39	USE carbon_cycle_mod, ONLY: fco2_land_nbp, fco2_land_nep, fco2_land_fLuc
40	USE carbon_cycle_mod, ONLY: fco2_land_fwoodharvest, fco2_land_fHarvest
41	USE carbon_cycle_mod, ONLY: carbon_cycle_cpl, carbon_cycle_tr, carbon_cycle_rad, RCO2_glo, RCO2_tot
42	USE carbon_cycle_mod, ONLY: ocean_area_tot
43	USE carbon_cycle_mod, ONLY: land_area_tot
44	USE mod_grid_phy_lmdz
45	USE mod_phys_lmdz_mpi_data, ONLY: is_mpi_root
46	USE mod_phys_lmdz_para, ONLY: gather, bcast, scatter
47	USE mod_phys_lmdz_omp_data, ONLY: is_omp_root
48	USE phys_cal_mod
49	USE phys_state_var_mod, ONLY: pctsrf
50	USE indice_sol_mod, ONLY: nbsrf, is_ter, is_lic, is_oce, is_sic
51
52	IMPLICIT NONE
53
54	INCLUDE "clesphys.h"
55	INCLUDE "YOMCST.h"
56
57	! Input argument
58	!---------------
59	REAL,INTENT(IN) :: pdtphys ! Pas d'integration pour la physique (seconde)
60	LOGICAL,INTENT(IN) :: debutphy ! le flag de l'initialisation de la physique
61
62	REAL,DIMENSION(klon),INTENT(IN) :: xlat ! latitudes pour chaque point
63	REAL,DIMENSION(klon),INTENT(IN) :: xlon ! longitudes pour chaque point
64	REAL,DIMENSION(klon),INTENT(IN) :: pphis ! geopotentiel du sol
65	REAL,DIMENSION(klon,klev),INTENT(IN) :: pphi ! geopotentiel de chaque couche
66
67	REAL,DIMENSION(klon,klev),INTENT(IN) :: t_seri ! Temperature
68	REAL,DIMENSION(klon,klev),INTENT(IN) :: pplay ! pression pour le mileu de chaque couche (en Pa)
69	REAL,DIMENSION(klon,klev+1),INTENT(IN) :: paprs ! pression pour chaque inter-couche (en Pa)
70	REAL,DIMENSION(klon,nbtr),INTENT(INOUT):: source ! flux de traceur [U/m2/s]
71
72	! Output argument
73	!----------------
74	REAL,DIMENSION(klon,klev,nbtr),INTENT(INOUT) :: tr_seri ! Concentration Traceur [U/kgA]
75
76	! Local variables
77	!----------------
78
79	INTEGER :: it, k, i, nb
80	REAL, DIMENSION(klon,klev) :: m_air ! mass of air in every grid box [kg]
81	REAL, DIMENSION(klon_glo,klev) :: co2_glo ! variable temporaire sur la grille global
82	REAL, DIMENSION(klon_glo,klev) :: m_air_glo ! variable temporaire sur la grille global
83	REAL, DIMENSION(klon_glo,nbsrf):: pctsrf_glo !--fractions de maille sur la grille globale
84	REAL, DIMENSION(klon_glo) :: pctsrf_ter_glo
85	REAL, DIMENSION(klon_glo) :: pctsrf_oce_glo
86	REAL, DIMENSION(klon_glo) :: pctsrf_sic_glo
87	REAL, DIMENSION(klon_glo) :: cell_area_glo !--aire des mailles sur la grille globale
88
89	LOGICAL, SAVE :: check_fCO2_nbp_in_cfname
90	!$OMP THREADPRIVATE(check_fCO2_nbp_in_cfname)
91	INTEGER, SAVE :: day_pre=-1
92	!$OMP THREADPRIVATE(day_pre)
93
94	REAL, PARAMETER :: secinday=86400.
95
96	IF (is_mpi_root) THEN
97	PRINT *,'in tracco2i: date from phys_cal_mod =',year_cur,'-',mth_cur,'-',day_cur,'-',hour
98	ENDIF
99
100	!--initialisation of CO2 field if not in restart file
101	!--dirty way of doing, do it better later
102	!--convert 280 ppm into kg CO2 / kg air
103	IF (debutphy) THEN
104
105	! Initialization of tr_seri(id_CO2) If it is not initialized
106	IF (MAXVAL(tr_seri(:,:,id_CO2)).LT.1.e-15) THEN
107	tr_seri(:,:,id_CO2)=co2_ppm01.e-6/RMDRMCO2 !--initialised from co2_ppm0 in rdem
108	ENDIF
109
110	!--check if fCO2_nbp is in
111	check_fCO2_nbp_in_cfname=.FALSE.
112	DO nb=1, nbcf_in
113	IF (cfname_in(nb)=="fCO2_nbp") check_fCO2_nbp_in_cfname=.TRUE.
114	ENDDO
115
116	CALL gather(pctsrf,pctsrf_glo)
117	CALL gather(pctsrf(:,is_ter),pctsrf_ter_glo)
118	CALL gather(pctsrf(:,is_oce),pctsrf_oce_glo)
119	CALL gather(pctsrf(:,is_sic),pctsrf_sic_glo)
120	CALL gather(cell_area(:),cell_area_glo)
121
122	ENDIF
123
124	!--calculate mass of air in every grid box in kg air
125	DO i=1, klon
126	DO k=1, klev
127	m_air(i,k)=(paprs(i,k)-paprs(i,k+1))/RG*cell_area(i)
128	ENDDO
129	ENDDO
130
131	!--call CO2 emission routine
132	!--co2bb is zero for now
133	!--unit kg CO2 m-2 s-1
134	CALL co2_emissions(debutphy)
135
136	!--retrieving land and ocean CO2 flux
137	fco2_land(:)=0.0
138	fco2_ocean(:)=0.0
139	fco2_land_nbp(:)=0.
140	fco2_land_nep(:)=0.
141	fco2_land_fLuc(:)=0.
142	fco2_land_fwoodharvest(:)=0.
143	fco2_land_fHarvest(:)=0.
144
145	DO nb=1, nbcf_in
146
147	SELECT CASE(cfname_in(nb))
148	!--dealing with the different fluxes coming from ORCHIDEE
149	!--fluxes come in unit of kg C m-2 s-1 is converted into kg CO2 m-2 s-1
150	CASE("fCO2_nep")
151	fco2_land_nep(:)=fields_in(:,nb)RMCO2/RMCpctsrf(:,is_ter)
152	CASE("fCO2_fLuc")
153	fco2_land_fLuc(:)=fields_in(:,nb)RMCO2/RMCpctsrf(:,is_ter)
154	CASE("fCO2_fwoodharvest")
155	fco2_land_fwoodharvest(:)=fields_in(:,nb)RMCO2/RMCpctsrf(:,is_ter)
156	CASE("fCO2_fHarvest")
157	fco2_land_fHarvest(:)=fields_in(:,nb)RMCO2/RMCpctsrf(:,is_ter)
158	CASE("fCO2_nbp")
159	fco2_land_nbp(:)=fields_in(:,nb)RMCO2/RMCpctsrf(:,is_ter)
160	!--fCO2_fco2_ocn comes in unit of mol C02 m-2 s-1 is converted into kg CO2 m-2 s-1 + change sign
161	CASE("fCO2_fgco2")
162	fco2_ocean(:)=-1.fco2_ocn_day(:)RMCO2/1.e3*(pctsrf(:,is_oce)+pctsrf(:,is_sic))
163	END SELECT
164
165	ENDDO
166
167	PRINT *, 'tracco2i_mod.F90 --- read_fco2_ocean_cor ',read_fco2_ocean_cor
168	PRINT *, 'tracco2i_mod.F90 --- read_fco2_land_cor ',read_fco2_land_cor
169
170	IF (debutphy) THEN
171
172	IF (read_fco2_ocean_cor) THEN
173	!$OMP MASTER
174	IF (is_mpi_root .AND. is_omp_root) THEN
175	ocean_area_tot=0.
176	PRINT *, 'tracco2i_mod.F90 --- var_fco2_ocean_cor (PgC/yr) ',var_fco2_ocean_cor
177	DO i=1, klon_glo
178	ocean_area_tot = ocean_area_tot + (pctsrf_oce_glo(i)+pctsrf_sic_glo(i))*cell_area_glo(i)
179	ENDDO
180	ENDIF !--is_mpi_root and is_omp_root
181	!$OMP END MASTER
182	CALL bcast(ocean_area_tot)
183	PRINT *, 'tracco2i_mod.F90 --- ocean_area_tot (debutphy) ',ocean_area_tot
184	ENDIF
185
186	IF (read_fco2_land_cor) THEN
187	!$OMP MASTER
188	IF (is_mpi_root .AND. is_omp_root) THEN
189	land_area_tot=0.
190	PRINT *, 'tracco2i_mod.F90 --- var_fco2_land_cor (PgC/yr) ',var_fco2_land_cor
191	DO i=1, klon_glo
192	land_area_tot = land_area_tot + pctsrf_ter_glo(i)*cell_area_glo(i)
193	ENDDO
194	ENDIF !--is_mpi_root and is_omp_root
195	!$OMP END MASTER
196	CALL bcast(land_area_tot)
197	PRINT *, 'tracco2i_mod.F90 --- land_area_tot (debutphy) ',land_area_tot
198	ENDIF
199
200	ENDIF !-- debutphy
201
202	PRINT *, 'tracco2i_mod.F90 --- ocean_area_tot (m2) ',ocean_area_tot
203	PRINT *, 'tracco2i_mod.F90 --- land_area_tot (m2) ',land_area_tot
204
205	IF (read_fco2_ocean_cor) THEN
206	! var_fco2_ocean_cor: correction of the surface downward CO2 flux into the ocean fgco2 (PgC/yr)
207	! This is the correction of the the net air to ocean carbon flux. Positive flux is into the ocean.
208	! PRINT *, 'tracco2i_mod.F90 --- var_fco2_ocean_cor (PgC/yr) ',var_fco2_ocean_cor
209
210	!var_fco2_ocean_cor: correction of the net air to ocean carbon flux (input data is a scalar in PgC/yr and must be converted in kg CO2 m-2 s-1)
211
212	! Factors for carbon and carbon dioxide
213	! 1 mole CO2 = 44.009 g CO2 = 12.011 g C
214	! 1 ppm by volume of atmosphere CO2 = 2.13 Gt C
215	! 1 gC = 44.009/12.011 gCO2
216
217	! ocean_area_tot: ocean area (m2)
218
219	! year_len: year length (in days)
220
221	! conversion: PgC/yr --> kg CO2 m-2 s-1
222	! fco2_ocean_cor / (86400.*year_len): PgC/yr to PgC/s
223	! fco2_ocean_cor / (86400.year_len)(pctsrf(i,is_oce)+pctsrf(i,is_sic))/ocean_area_tot: PgC/s to PgC/s/m2
224	! (fco2_ocean_cor / (86400.year_len)(pctsrf(i,is_oce)+pctsrf(i,is_sic))/ocean_area_tot) *1e12: PgC/s/m2 to kgC/s/m2
225	! (fco2_ocean_cor / (86400.year_len)(pctsrf(i,is_oce)+pctsrf(i,is_sic))/ocean_area_tot) * 1e12 * (RMCO2/RMC): kgC/s/m2 to kgCO2/s/m2
226
227	DO i=1, klon
228	fco2_ocean_cor(i)=(var_fco2_ocean_cor*(RMCO2/RMC) &
229	*(pctsrf(i,is_oce)+pctsrf(i,is_sic))/ocean_area_tot &
230	/(secindayyear_len))1.e12
231	ENDDO
232
233	PRINT *, 'tracco2i_mod.F90 --- MINVAL(fco2_ocean_cor) ',MINVAL(fco2_ocean_cor)
234	PRINT *, 'tracco2i_mod.F90 --- MAXVAL(fco2_ocean_cor) ',MAXVAL(fco2_ocean_cor)
235
236	ELSE
237	fco2_ocean_cor(:)=0.
238	ENDIF
239
240	IF (read_fco2_land_cor) THEN
241	! var_fco2_land_cor: correction of the carbon Mass Flux out of Atmosphere Due to Net Biospheric Production on Land (PgC/yr)
242	! This is the correction of the net mass flux of carbon between land and atmosphere calculated as
243	! photosynthesis MINUS the sum of plant and soil respiration, carbon fluxes from
244	! fire, harvest, grazing and land use change. Positive flux is into the land.
245	! PRINT *, 'tracco2i_mod.F90 --- var_fco2_land_cor (m2) ',var_fco2_land_cor
246
247	!var_fco2_land_cor: correction of the et air to land carbon flux (input data is a scalar in PgC/yr and must be converted in kg CO2 m-2 s-1)
248
249	! Factors for carbon and carbon dioxide
250	! 1 mole CO2 = 44.009 g CO2 = 12.011 g C
251	! 1 ppm by volume of atmosphere CO2 = 2.13 Gt C
252	! 1 gC = 44.009/12.011 gCO2
253
254	! land_area_tot: land area (m2)
255
256	! year_len: year length (in days)
257
258	! conversion: PgC/yr --> kg CO2 m-2 s-1
259	! fco2_land_cor / (86400.*year_len): PgC/yr to PgC/s
260	! fco2_land_cor / (86400.year_len)pctsrf(i,is_ter)/land_area_tot: PgC/s to PgC/s/m2
261	! (fco2_land_cor / (86400.year_len)pctsrf(i,is_ter)/land_area_tot) *1e12: PgC/s/m2 to kgC/s/m2
262	! (fco2_land_cor / (86400.year_len)pctsrf(i,is_ter)/land_area_tot) * 1e12 * (RMCO2/RMC): kgC/s/m2 to kgCO2/s/m2
263
264	DO i=1, klon
265	fco2_land_cor(i)=var_fco2_land_corRMCO2/RMCpctsrf(i,is_ter)/land_area_tot/(secindayyear_len)1.e12
266	ENDDO
267
268	PRINT *, 'tracco2i_mod.F90 --- MINVAL(fco2_land_cor) ',MINVAL(fco2_land_cor)
269	PRINT *, 'tracco2i_mod.F90 --- MAXVAL(fco2_land_cor) ',MAXVAL(fco2_land_cor)
270
271	ELSE
272	fco2_land_cor(:)=0.
273	ENDIF
274
275	!--if fCO2_nbp is transferred we use it, otherwise we use the sum of what has been passed from ORCHIDEE
276	IF (check_fCO2_nbp_in_cfname) THEN
277	fco2_land(:)=fco2_land_nbp(:)
278	ELSE
279	fco2_land(:)=fco2_land_nep(:)+fco2_land_fLuc(:)+fco2_land_fwoodharvest(:)+fco2_land_fHarvest(:)
280	ENDIF
281
282	!!--preparing the net anthropogenic flux at the surface for mixing layer
283	!!--unit kg CO2 / m2 / s
284	! PRINT *, 'tracco2i_mod.F90 --- MAXVAL(fco2_ff) ',MAXVAL(fco2_ff)
285	! PRINT *, 'tracco2i_mod.F90 --- MINVAL(fco2_ff) ',MINVAL(fco2_ff)
286	! PRINT *, 'tracco2i_mod.F90 --- MAXVAL(fco2_bb) ',MAXVAL(fco2_bb)
287	! PRINT *, 'tracco2i_mod.F90 --- MINVAL(fco2_bb) ',MINVAL(fco2_bb)
288	! PRINT *, 'tracco2i_mod.F90 --- MAXVAL(fco2_land) ',MAXVAL(fco2_land)
289	! PRINT *, 'tracco2i_mod.F90 --- MINVAL(fco2_land) ',MINVAL(fco2_land)
290	! PRINT *, 'tracco2i_mod.F90 --- MAXVAL(fco2_ocean) ',MAXVAL(fco2_ocean)
291	! PRINT *, 'tracco2i_mod.F90 --- MINVAL(fco2_ocean) ',MINVAL(fco2_ocean)
292	! PRINT *, 'tracco2i_mod.F90 --- MAXVAL(source(:,id_CO2)) ',MAXVAL(source(:,id_CO2))
293	! PRINT *, 'tracco2i_mod.F90 --- MINVAL(source(:,id_CO2)) ',MINVAL(source(:,id_CO2))
294	!
295	!--build final source term for CO2
296	source(:,id_CO2)=fco2_ff(:)+fco2_bb(:)+fco2_land(:)+fco2_ocean(:)-fco2_ocean_cor(:)-fco2_land_cor(:)
297
298	!--computing global mean CO2 for radiation
299	!--for every timestep comment out the IF ENDIF statements
300	!--otherwise this is updated every day
301	IF (debutphy.OR.day_cur.NE.day_pre) THEN
302
303	CALL gather(tr_seri(:,:,id_CO2),co2_glo)
304	CALL gather(m_air,m_air_glo)
305
306	!$OMP MASTER
307
308	!--compute a global mean CO2 value and print its value in ppm
309	IF (is_mpi_root .AND. is_omp_root) THEN
310	RCO2_tot=SUM(co2_glo*m_air_glo) !--unit kg CO2
311	RCO2_glo=RCO2_tot/SUM(m_air_glo) !--unit kg CO2 / kg air
312	! the following operation is only to maintain precision consistency
313	! of RCO2_glo which differs whether it is directly computed or read from
314	! a restart file (after having been computed)
315	RCO2_glo = FLOAT(INT(RCO2_glo * 1e8))/1e8
316	PRINT ,'tracco2i: global CO2 in ppm =', RCO2_glo1.e6*RMD/RMCO2
317	PRINT *,'tracco2i: total CO2 in kg =', RCO2_tot
318	ENDIF
319	!$OMP END MASTER
320	CALL bcast(RCO2_glo)
321	day_pre=day_cur
322
323	!--if not carbon_cycle_tr, then we reinitialize the CO2 each day to its global mean value
324	IF (.NOT.carbon_cycle_tr) THEN
325	tr_seri(:,:,id_CO2)=RCO2_glo
326	ENDIF
327	ENDIF
328
329	PRINT , 'tracco2i_mod.F90 --- MINVAL(tr_seri(:,1,id_CO2)1.e6RMD/RMCO2): L1: ',MINVAL(tr_seri(:,1,id_CO2)1.e6*RMD/RMCO2)
330	PRINT , 'tracco2i_mod.F90 --- MAXVAL(tr_seri(:,1,id_CO2)1.e6RMD/RMCO2): L1: ',MAXVAL(tr_seri(:,1,id_CO2)1.e6*RMD/RMCO2)
331
332	PRINT , 'tracco2i_mod.F90 --- MINVAL(tr_seri(:,79,id_CO2)1.e6RMD/RMCO2): L79: ',MINVAL(tr_seri(:,79,id_CO2)1.e6*RMD/RMCO2)
333	PRINT , 'tracco2i_mod.F90 --- MAXVAL(tr_seri(:,79,id_CO2)1.e6RMD/RMCO2): L79: ',MAXVAL(tr_seri(:,79,id_CO2)1.e6*RMD/RMCO2)
334
335	co2_send(:) = tr_seri(:,1,id_CO2)1.e6RMD/RMCO2
336
337	PRINT *, 'tracco2i_mod.F90 --- MINVAL(co2_send) ',MINVAL(co2_send)
338	PRINT *, 'tracco2i_mod.F90 --- MAXVAL(co2_send) ',MAXVAL(co2_send)
339
340	END SUBROUTINE tracco2i
341
342	SUBROUTINE co2_emissions(debutphy)
343
344	USE dimphy
345	! USE infotrac_phy
346	USE geometry_mod, ONLY : cell_area
347	USE mod_grid_phy_lmdz
348	USE mod_phys_lmdz_mpi_data, ONLY: is_mpi_root
349	USE mod_phys_lmdz_para, ONLY: gather, scatter
350	USE phys_cal_mod
351
352	USE netcdf95, ONLY: nf95_close, nf95_gw_var, nf95_inq_varid, nf95_open
353	USE netcdf, ONLY: nf90_get_var, nf90_noerr, nf90_nowrite
354
355	USE carbon_cycle_mod, ONLY : fco2_ff, fco2_bb, fco2_land, fco2_ocean
356
357	IMPLICIT NONE
358
359	INCLUDE "YOMCST.h"
360	LOGICAL,INTENT(IN) :: debutphy
361
362	! For NetCDF:
363	INTEGER ncid_in ! IDs for input files
364	INTEGER varid, ncerr
365
366	INTEGER :: n_glo, n_month
367	REAL, POINTER:: vector(:), time(:)
368	REAL,ALLOCATABLE :: flx_co2ff_glo(:,:) ! fossil-fuel CO2
369	REAL,ALLOCATABLE :: flx_co2bb_glo(:,:) ! biomass-burning CO2
370	REAL,ALLOCATABLE, SAVE :: flx_co2ff(:,:) ! fossil-fuel CO2
371	REAL,ALLOCATABLE, SAVE :: flx_co2bb(:,:) ! biomass-burning CO2
372	!$OMP THREADPRIVATE(flx_co2ff,flx_co2bb)
373
374	!! may be controlled via the .def later on
375	!! also co2bb for now comes from ORCHIDEE
376	LOGICAL, PARAMETER :: readco2ff=.TRUE.
377	!! this should be left to FALSE for now
378	LOGICAL, PARAMETER :: readco2bb=.FALSE.
379
380	CHARACTER (len = 20) :: modname = 'tracco2i.co2_emissions'
381	CHARACTER (len = 80) :: abort_message
382
383	IF (debutphy) THEN
384
385	ALLOCATE(flx_co2ff(klon,12))
386	ALLOCATE(flx_co2bb(klon,12))
387
388	!$OMP MASTER
389	IF (is_mpi_root) THEN
390
391	IF (.NOT.ALLOCATED(flx_co2ff_glo)) ALLOCATE(flx_co2ff_glo(klon_glo,12))
392	IF (.NOT.ALLOCATED(flx_co2bb_glo)) ALLOCATE(flx_co2bb_glo(klon_glo,12))
393
394	!--reading CO2 fossil fuel emissions
395	IF (readco2ff) THEN
396
397	! ... Open the CO2ff file
398	CALL nf95_open("sflx_lmdz_co2_ff.nc", nf90_nowrite, ncid_in)
399
400	CALL nf95_inq_varid(ncid_in, "vector", varid)
401	CALL nf95_gw_var(ncid_in, varid, vector)
402	n_glo = size(vector)
403	IF (n_glo.NE.klon_glo) THEN
404	abort_message='sflx_lmdz_co2_ff: le nombre de points n est pas egal a klon_glo'
405	CALL abort_physic(modname,abort_message,1)
406	ENDIF
407
408	CALL nf95_inq_varid(ncid_in, "time", varid)
409	CALL nf95_gw_var(ncid_in, varid, time)
410	n_month = size(time)
411	IF (n_month.NE.12) THEN
412	abort_message='sflx_lmdz_co2_ff: le nombre de month n est pas egal a 12'
413	CALL abort_physic(modname,abort_message,1)
414	ENDIF
415
416	!--reading flx_co2 for fossil fuel
417	CALL nf95_inq_varid(ncid_in, "flx_co2", varid)
418	ncerr = nf90_get_var(ncid_in, varid, flx_co2ff_glo)
419
420	CALL nf95_close(ncid_in)
421
422	ELSE !--co2ff not to be read
423	flx_co2ff_glo(:,:)=0.0
424	ENDIF
425
426	!--reading CO2 biomass burning emissions
427	!--using it will be inconsistent with treatment in ORCHIDEE
428	IF (readco2bb) THEN
429
430	! ... Open the CO2bb file
431	CALL nf95_open("sflx_lmdz_co2_bb.nc", nf90_nowrite, ncid_in)
432
433	CALL nf95_inq_varid(ncid_in, "vector", varid)
434	CALL nf95_gw_var(ncid_in, varid, vector)
435	n_glo = size(vector)
436	IF (n_glo.NE.klon_glo) THEN
437	abort_message='sflx_lmdz_co2_bb: le nombre de points n est pas egal a klon_glo'
438	CALL abort_physic(modname,abort_message,1)
439	ENDIF
440
441	CALL nf95_inq_varid(ncid_in, "time", varid)
442	CALL nf95_gw_var(ncid_in, varid, time)
443	n_month = size(time)
444	IF (n_month.NE.12) THEN
445	abort_message='sflx_lmdz_co2_bb: le nombre de month n est pas egal a 12'
446	CALL abort_physic(modname,abort_message,1)
447	ENDIF
448
449	!--reading flx_co2 for biomass burning
450	CALL nf95_inq_varid(ncid_in, "flx_co2", varid)
451	ncerr = nf90_get_var(ncid_in, varid, flx_co2bb_glo)
452
453	CALL nf95_close(ncid_in)
454
455	ELSE !--co2bb not to be read
456	flx_co2bb_glo(:,:)=0.0
457	ENDIF
458
459	ENDIF
460	!$OMP END MASTER
461
462	! Allocation needed for all proc otherwise scatter might complain
463	IF (.NOT.ALLOCATED(flx_co2ff_glo)) ALLOCATE(flx_co2ff_glo(0,0))
464	IF (.NOT.ALLOCATED(flx_co2bb_glo)) ALLOCATE(flx_co2bb_glo(0,0))
465
466	!--scatter on all proc
467	CALL scatter(flx_co2ff_glo,flx_co2ff)
468	CALL scatter(flx_co2bb_glo,flx_co2bb)
469
470	IF (ALLOCATED(flx_co2ff_glo)) DEALLOCATE(flx_co2ff_glo)
471	IF (ALLOCATED(flx_co2bb_glo)) DEALLOCATE(flx_co2bb_glo)
472
473	ENDIF !--end debuthy
474
475	!---select the correct month
476	IF (mth_cur.LT.1.OR.mth_cur.GT.12) THEN
477	PRINT *,'probleme avec le mois dans co2_ini =', mth_cur
478	ENDIF
479
480	fco2_ff(:) = flx_co2ff(:,mth_cur)
481	fco2_bb(:) = flx_co2bb(:,mth_cur)
482
483	END SUBROUTINE co2_emissions
484
485	END MODULE tracco2i_mod

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