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traccoag_mod.F90 @ 4990

Last change on this file since 4990 was 4950, checked in by lebasn, 6 months ago
StratAer?: New model version (microphysic, composition routine, code cleaning, new params...)
Property svn:keywords set to `Id`
File size: 15.2 KB

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[2690]	1	MODULE traccoag_mod
	2	!
	3	! This module calculates the concentration of aerosol particles in certain size bins
	4	! considering coagulation and sedimentation.
	5	!
	6	CONTAINS
	7
	8	SUBROUTINE traccoag(pdtphys, gmtime, debutphy, julien, &
	9	presnivs, xlat, xlon, pphis, pphi, &
[2752]	10	t_seri, pplay, paprs, sh, rh, tr_seri)
[4950]	11
[2752]	12	USE phys_local_var_mod, ONLY: mdw, R2SO4, DENSO4, f_r_wet, surf_PM25_sulf, &
[4950]	13	& budg_emi_ocs, budg_emi_so2, budg_emi_h2so4, budg_emi_part, &
	14	& R2SO4B, DENSO4B, f_r_wetB
	15
[2690]	16	USE dimphy
[4293]	17	USE infotrac_phy, ONLY : nbtr_bin, nbtr_sulgas, nbtr, id_SO2_strat
[2690]	18	USE aerophys
[3526]	19	USE geometry_mod, ONLY : cell_area, boundslat
[2690]	20	USE mod_grid_phy_lmdz
	21	USE mod_phys_lmdz_mpi_data, ONLY : is_mpi_root
	22	USE mod_phys_lmdz_para, only: gather, scatter
[4601]	23	USE phys_cal_mod, ONLY : year_len, year_cur, mth_cur, day_cur, hour
[2690]	24	USE sulfate_aer_mod
	25	USE phys_local_var_mod, ONLY: stratomask
	26	USE YOMCST
[3526]	27	USE print_control_mod, ONLY: lunout
[4601]	28	USE strataer_local_var_mod
	29
[2690]	30	IMPLICIT NONE
	31
	32	! Input argument
	33	!---------------
	34	REAL,INTENT(IN) :: pdtphys ! Pas d'integration pour la physique (seconde)
	35	REAL,INTENT(IN) :: gmtime ! Heure courante
	36	LOGICAL,INTENT(IN) :: debutphy ! le flag de l'initialisation de la physique
	37	INTEGER,INTENT(IN) :: julien ! Jour julien
	38
	39	REAL,DIMENSION(klev),INTENT(IN) :: presnivs! pressions approximat. des milieux couches (en PA)
	40	REAL,DIMENSION(klon),INTENT(IN) :: xlat ! latitudes pour chaque point
	41	REAL,DIMENSION(klon),INTENT(IN) :: xlon ! longitudes pour chaque point
	42	REAL,DIMENSION(klon),INTENT(IN) :: pphis ! geopotentiel du sol
	43	REAL,DIMENSION(klon,klev),INTENT(IN) :: pphi ! geopotentiel de chaque couche
	44
	45	REAL,DIMENSION(klon,klev),INTENT(IN) :: t_seri ! Temperature
	46	REAL,DIMENSION(klon,klev),INTENT(IN) :: pplay ! pression pour le mileu de chaque couche (en Pa)
	47	REAL,DIMENSION(klon,klev+1),INTENT(IN) :: paprs ! pression pour chaque inter-couche (en Pa)
	48	REAL,DIMENSION(klon,klev),INTENT(IN) :: sh ! humidite specifique
	49	REAL,DIMENSION(klon,klev),INTENT(IN) :: rh ! humidite relative
	50
	51	! Output argument
	52	!----------------
	53	REAL,DIMENSION(klon,klev,nbtr),INTENT(INOUT) :: tr_seri ! Concentration Traceur [U/KgA]
	54
	55	! Local variables
	56	!----------------
[3526]	57	REAL :: m_aer_emiss_vol_daily ! daily injection mass emission
[4601]	58	REAL :: m_aer ! aerosol mass
[3526]	59	INTEGER :: it, k, i, ilon, ilev, itime, i_int, ieru
[2690]	60	LOGICAL,DIMENSION(klon,klev) :: is_strato ! true = above tropopause, false = below
	61	REAL,DIMENSION(klon,klev) :: m_air_gridbox ! mass of air in every grid box [kg]
	62	REAL,DIMENSION(klon_glo,klev,nbtr) :: tr_seri_glo ! Concentration Traceur [U/KgA]
	63	REAL,DIMENSION(klev+1) :: altLMDz ! altitude of layer interfaces in m
	64	REAL,DIMENSION(klev) :: f_lay_emiss ! fraction of emission for every vertical layer
	65	REAL :: f_lay_sum ! sum of layer emission fractions
[2699]	66	REAL :: alt ! altitude for integral calculation
[2690]	67	INTEGER,PARAMETER :: n_int_alt=10 ! number of subintervals for integration over Gaussian emission profile
	68	REAL,DIMENSION(nbtr_bin) :: r_bin ! particle radius in size bin [m]
	69	REAL,DIMENSION(nbtr_bin) :: r_lower ! particle radius at lower bin boundary [m]
	70	REAL,DIMENSION(nbtr_bin) :: r_upper ! particle radius at upper bin boundary [m]
	71	REAL,DIMENSION(nbtr_bin) :: m_part_dry ! mass of one dry particle in size bin [kg]
	72	REAL :: zrho ! Density of air [kg/m3]
	73	REAL :: zdz ! thickness of atm. model layer in m
[2752]	74	REAL,DIMENSION(klev) :: zdm ! mass of atm. model layer in kg
[2690]	75	REAL,DIMENSION(klon,klev) :: dens_aer ! density of aerosol particles [kg/m3 aerosol] with default H2SO4 mass fraction
[2752]	76	REAL :: emission ! emission
[3526]	77	REAL :: theta_min, theta_max ! for SAI computation between two latitudes
	78	REAL :: dlat_loc
[4601]	79	REAL :: latmin,latmax,lonmin,lonmax ! lat/lon min/max for injection
	80	REAL :: sigma_alt, altemiss ! injection altitude + sigma for distrib
	81	REAL :: pdt,stretchlong ! physic timestep, stretch emission over one day
	82
[4513]	83	INTEGER :: injdur_sai ! injection duration for SAI case [days]
	84	INTEGER :: yr, is_bissext
[2690]	85
[4601]	86	IF (is_mpi_root .AND. flag_verbose_strataer) THEN
[3526]	87	WRITE(lunout,*) 'in traccoag: date from phys_cal_mod =',year_cur,'-',mth_cur,'-',day_cur,'-',hour
[4601]	88	WRITE(lunout,*) 'IN traccoag flag_emit: ',flag_emit
[2690]	89	ENDIF
[3526]	90
[4950]	91	! radius [m]
[2690]	92	DO it=1, nbtr_bin
	93	r_bin(it)=mdw(it)/2.
	94	ENDDO
	95
	96	!--set boundaries of size bins
	97	DO it=1, nbtr_bin
	98	IF (it.EQ.1) THEN
	99	r_upper(it)=sqrt(r_bin(it+1)*r_bin(it))
	100	r_lower(it)=r_bin(it)**2./r_upper(it)
	101	ELSEIF (it.EQ.nbtr_bin) THEN
	102	r_lower(it)=sqrt(r_bin(it)*r_bin(it-1))
	103	r_upper(it)=r_bin(it)**2./r_lower(it)
	104	ELSE
	105	r_lower(it)=sqrt(r_bin(it)*r_bin(it-1))
	106	r_upper(it)=sqrt(r_bin(it+1)*r_bin(it))
	107	ENDIF
	108	ENDDO
	109
	110	IF (debutphy .and. is_mpi_root) THEN
	111	DO it=1, nbtr_bin
[3526]	112	WRITE(lunout,*) 'radius bin', it, ':', r_bin(it), '(from', r_lower(it), 'to', r_upper(it), ')'
[2690]	113	ENDDO
	114	ENDIF
	115
	116	!--initialising logical is_strato from stratomask
	117	is_strato(:,:)=.FALSE.
[2695]	118	WHERE (stratomask.GT.0.5) is_strato=.TRUE.
[2690]	119
[4750]	120	IF(flag_new_strat_compo) THEN
[4950]	121	IF(debutphy) WRITE(lunout,*) 'traccoag: COMPO/DENSITY (Tabazadeh 97) + H2O kelvin effect', flag_new_strat_compo
	122	! STRACOMP (H2O, P, t_seri, R -> R2SO4 + Kelvin effect) : Taba97, Socol, etc...
	123	CALL stracomp_kelvin(sh,t_seri,pplay)
[4750]	124	ELSE
[4950]	125	IF(debutphy) WRITE(lunout,*) 'traccoag: COMPO from Bekki 2D model', flag_new_strat_compo
[4750]	126	! STRACOMP (H2O, P, t_seri -> aerosol composition (R2SO4))
	127	! H2SO4 mass fraction in aerosol (%)
	128	CALL stracomp(sh,t_seri,pplay)
	129
	130	! aerosol density (gr/cm3)
	131	CALL denh2sa(t_seri)
[4950]	132
	133	! compute factor for converting dry to wet radius (for every grid box)
	134	f_r_wet(:,:) = (dens_aer_dry/(DENSO4(:,:)1000.)/(R2SO4(:,:)/100.))*(1./3.)
[4750]	135	ENDIF
	136
[2690]	137	!--calculate mass of air in every grid box
	138	DO ilon=1, klon
[4601]	139	DO ilev=1, klev
	140	m_air_gridbox(ilon,ilev)=(paprs(ilon,ilev)-paprs(ilon,ilev+1))/RG*cell_area(ilon)
	141	ENDDO
[2690]	142	ENDDO
[4601]	143
[2752]	144	!--initialise emission diagnostics
[4769]	145	if (nErupt > 0 .and. (flag_emit == 1 .or. flag_emit == 4)) budg_emi(:,1)=0.0
[2752]	146	budg_emi_ocs(:)=0.0
	147	budg_emi_so2(:)=0.0
	148	budg_emi_h2so4(:)=0.0
	149	budg_emi_part(:)=0.0
	150
[4601]	151	!--sulfur emission, depending on chosen scenario (flag_emit)
	152	SELECT CASE(flag_emit)
[2690]	153
	154	CASE(0) ! background aerosol
	155	! do nothing (no emission)
	156
	157	CASE(1) ! volcanic eruption
	158	!--only emit on day of eruption
	159	! stretch emission over one day of Pinatubo eruption
[3526]	160	DO ieru=1, nErupt
	161	IF (year_cur==year_emit_vol(ieru).AND.mth_cur==mth_emit_vol(ieru).AND.&
	162	day_cur>=day_emit_vol(ieru).AND.day_cur<(day_emit_vol(ieru)+injdur)) THEN
[4601]	163
	164	! daily injection mass emission
	165	m_aer=m_aer_emiss_vol(ieru,1)/(REAL(injdur)*REAL(ponde_lonlat_vol(ieru)))
	166	!emission as SO2 gas (with m(SO2)=64/32*m_aer_emiss)
	167	m_aer=m_aer*(mSO2mol/mSatom)
	168
	169	WRITE(lunout,*) 'IN traccoag m_aer_emiss_vol(ieru)=',m_aer_emiss_vol(ieru,1), &
[3526]	170	'ponde_lonlat_vol(ieru)=',ponde_lonlat_vol(ieru),'(injdur*ponde_lonlat_vol(ieru))', &
[4601]	171	(injdur*ponde_lonlat_vol(ieru)),'m_aer_emiss_vol_daily=',m_aer,'ieru=',ieru
[3526]	172	WRITE(lunout,*) 'IN traccoag, dlon=',dlon
[4601]	173
	174	latmin=xlat_min_vol(ieru)
	175	latmax=xlat_max_vol(ieru)
	176	lonmin=xlon_min_vol(ieru)
	177	lonmax=xlon_max_vol(ieru)
	178	altemiss = altemiss_vol(ieru)
	179	sigma_alt = sigma_alt_vol(ieru)
	180	pdt=pdtphys
	181	! stretch emission over one day of eruption
	182	stretchlong = 1.
	183
	184	CALL STRATEMIT(pdtphys,pdt,xlat,xlon,t_seri,pplay,paprs,tr_seri,&
	185	m_aer,latmin,latmax,lonmin,lonmax,altemiss,sigma_alt,id_SO2_strat, &
	186	stretchlong,1,0)
	187
[3526]	188	ENDIF ! emission period
	189	ENDDO ! eruption number
	190
[2690]	191	CASE(2) ! stratospheric aerosol injections (SAI)
	192	!
[4513]	193	! Computing duration of SAI in days...
	194	! ... starting from 0...
	195	injdur_sai = 0
	196	! ... then adding whole years from first to (n-1)th...
	197	DO yr = year_emit_sai_start, year_emit_sai_end-1
	198	! (n % 4 == 0) and (n % 100 != 0 or n % 400 == 0)
	199	is_bissext = (MOD(yr,4)==0) .AND. (MOD(yr,100) /= 0 .OR. MOD(yr,400) == 0)
	200	injdur_sai = injdur_sai+365+is_bissext
	201	ENDDO
	202	! ... then subtracting part of the first year where no injection yet...
	203	is_bissext = (MOD(year_emit_sai_start,4)==0) .AND. (MOD(year_emit_sai_start,100) /= 0 .OR. MOD(year_emit_sai_start,400) == 0)
	204	SELECT CASE(mth_emit_sai_start)
	205	CASE(2)
	206	injdur_sai = injdur_sai-31
	207	CASE(3)
	208	injdur_sai = injdur_sai-31-28-is_bissext
	209	CASE(4)
	210	injdur_sai = injdur_sai-31-28-is_bissext-31
	211	CASE(5)
	212	injdur_sai = injdur_sai-31-28-is_bissext-31-30
	213	CASE(6)
	214	injdur_sai = injdur_sai-31-28-is_bissext-31-30-31
	215	CASE(7)
	216	injdur_sai = injdur_sai-31-28-is_bissext-31-30-31-30
	217	CASE(8)
	218	injdur_sai = injdur_sai-31-28-is_bissext-31-30-31-30-31
	219	CASE(9)
	220	injdur_sai = injdur_sai-31-28-is_bissext-31-30-31-30-31-31
	221	CASE(10)
	222	injdur_sai = injdur_sai-31-28-is_bissext-31-30-31-30-31-31-30
	223	CASE(11)
	224	injdur_sai = injdur_sai-31-28-is_bissext-31-30-31-30-31-31-30-31
	225	CASE(12)
	226	injdur_sai = injdur_sai-31-28-is_bissext-31-30-31-30-31-31-30-31-30
	227	END SELECT
	228	injdur_sai = injdur_sai-day_emit_sai_start+1
	229	! ... then adding part of the n-th year
	230	is_bissext = (MOD(year_emit_sai_end,4)==0) .AND. (MOD(year_emit_sai_end,100) /= 0 .OR. MOD(year_emit_sai_end,400) == 0)
	231	SELECT CASE(mth_emit_sai_end)
	232	CASE(2)
	233	injdur_sai = injdur_sai+31
	234	CASE(3)
	235	injdur_sai = injdur_sai+31+28+is_bissext
	236	CASE(4)
	237	injdur_sai = injdur_sai+31+28+is_bissext+31
	238	CASE(5)
	239	injdur_sai = injdur_sai+31+28+is_bissext+31+30
	240	CASE(6)
	241	injdur_sai = injdur_sai+31+28+is_bissext+31+30+31
	242	CASE(7)
	243	injdur_sai = injdur_sai+31+28+is_bissext+31+30+31+30
	244	CASE(8)
	245	injdur_sai = injdur_sai+31+28+is_bissext+31+30+31+30+31
	246	CASE(9)
	247	injdur_sai = injdur_sai+31+28+is_bissext+31+30+31+30+31+31
	248	CASE(10)
	249	injdur_sai = injdur_sai+31+28+is_bissext+31+30+31+30+31+31+30
	250	CASE(11)
	251	injdur_sai = injdur_sai+31+28+is_bissext+31+30+31+30+31+31+30+31
	252	CASE(12)
	253	injdur_sai = injdur_sai+31+28+is_bissext+31+30+31+30+31+31+30+31+30
	254	END SELECT
	255	injdur_sai = injdur_sai+day_emit_sai_end
	256	! A security: are SAI dates of injection consistent?
	257	IF (injdur_sai <= 0) THEN
	258	CALL abort_physic('traccoag_mod', 'Pb in SAI dates of injection.',1)
	259	ENDIF
	260	! Injection in itself
	261	IF (( year_emit_sai_start <= year_cur ) &
	262	.AND. ( year_cur <= year_emit_sai_end ) &
	263	.AND. ( mth_emit_sai_start <= mth_cur .OR. year_emit_sai_start < year_cur ) &
	264	.AND. ( mth_cur <= mth_emit_sai_end .OR. year_cur < year_emit_sai_end ) &
	265	.AND. ( day_emit_sai_start <= day_cur .OR. mth_emit_sai_start < mth_cur .OR. year_emit_sai_start < year_cur ) &
	266	.AND. ( day_cur <= day_emit_sai_end .OR. mth_cur < mth_emit_sai_end .OR. year_cur < year_emit_sai_end )) THEN
[4601]	267
	268	m_aer=m_aer_emiss_sai
	269	!emission as SO2 gas (with m(SO2)=64/32*m_aer_emiss)
	270	m_aer=m_aer*(mSO2mol/mSatom)
	271
	272	latmin=xlat_sai
	273	latmax=xlat_sai
	274	lonmin=xlon_sai
	275	lonmax=xlon_sai
	276	altemiss = altemiss_sai
	277	sigma_alt = sigma_alt_sai
	278	pdt=0.
	279	! stretch emission over whole year (360d)
	280	stretchlong=FLOAT(year_len)
	281
	282	CALL STRATEMIT(pdtphys,pdt,xlat,xlon,t_seri,pplay,paprs,m_air_gridbox,tr_seri,&
	283	m_aer,latmin,latmax,lonmin,lonmax,altemiss,sigma_alt,id_SO2_strat, &
	284	stretchlong,1,0)
	285
	286	budg_emi_so2(:) = budg_emi(:,1)*mSatom/mSO2mol
[4513]	287	ENDIF ! Condition over injection dates
	288
[3526]	289	CASE(3) ! --- SAI injection over a single band of longitude and between
	290	! lat_min and lat_max
	291
[4601]	292	m_aer=m_aer_emiss_sai
	293	!emission as SO2 gas (with m(SO2)=64/32*m_aer_emiss)
	294	m_aer=m_aer*(mSO2mol/mSatom)
[3526]	295
[4601]	296	latmin=xlat_min_sai
	297	latmax=xlat_max_sai
	298	lonmin=xlon_sai
	299	lonmax=xlon_sai
	300	altemiss = altemiss_sai
	301	sigma_alt = sigma_alt_sai
	302	pdt=0.
	303	! stretch emission over whole year (360d)
	304	stretchlong=FLOAT(year_len)
[3526]	305
[4601]	306	CALL STRATEMIT(pdtphys,pdt,xlat,xlon,t_seri,pplay,paprs,m_air_gridbox,tr_seri,&
	307	m_aer,latmin,latmax,lonmin,lonmax,altemiss,sigma_alt,id_SO2_strat, &
	308	stretchlong,1,0)
[3526]	309
[4601]	310	budg_emi_so2(:) = budg_emi(:,1)*mSatom/mSO2mol
	311
	312	END SELECT ! emission scenario (flag_emit)
[3526]	313
[2690]	314	!--read background concentrations of OCS and SO2 and lifetimes from input file
[2695]	315	!--update the variables defined in phys_local_var_mod
	316	CALL interp_sulf_input(debutphy,pdtphys,paprs,tr_seri)
[2690]	317
	318	!--convert OCS to SO2 in the stratosphere
[2752]	319	CALL ocs_to_so2(pdtphys,tr_seri,t_seri,pplay,paprs,is_strato)
[2690]	320
	321	!--convert SO2 to H2SO4
[2752]	322	CALL so2_to_h2so4(pdtphys,tr_seri,t_seri,pplay,paprs,is_strato)
[2690]	323
	324	!--common routine for nucleation and condensation/evaporation with adaptive timestep
	325	CALL micphy_tstep(pdtphys,tr_seri,t_seri,pplay,paprs,rh,is_strato)
	326
	327	!--call coagulation routine
	328	CALL coagulate(pdtphys,mdw,tr_seri,t_seri,pplay,dens_aer,is_strato)
	329
[4601]	330	!--call sedimentation routine
[2690]	331	CALL aer_sedimnt(pdtphys, t_seri, pplay, paprs, tr_seri, dens_aer)
	332
	333	!--compute mass concentration of PM2.5 sulfate particles (wet diameter and mass) at the surface for health studies
	334	surf_PM25_sulf(:)=0.0
	335	DO i=1,klon
	336	DO it=1, nbtr_bin
	337	IF (mdw(it) .LT. 2.5e-6) THEN
	338	!surf_PM25_sulf(i)=surf_PM25_sulf(i)+tr_seri(i,1,it+nbtr_sulgas)*m_part(i,1,it) &
[3526]	339	!assume that particles consist of ammonium sulfate at the surface (132g/mol)
	340	!and are dry at T = 20 deg. C and 50 perc. humidity
[2690]	341	surf_PM25_sulf(i)=surf_PM25_sulf(i)+tr_seri(i,1,it+nbtr_sulgas) &
	342	& 132./98.dens_aer_dry4./3.RPI(mdw(it)/2.)*3 &
[2752]	343	& pplay(i,1)/t_seri(i,1)/RD1.e9
[2690]	344	ENDIF
	345	ENDDO
	346	ENDDO
[4601]	347
[2690]	348	END SUBROUTINE traccoag
	349
	350	END MODULE traccoag_mod

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