source: LMDZ6/trunk/libf/phylmd/macv2sp.f90 @ 5300

Last change on this file since 5300 was 5285, checked in by abarral, 5 weeks ago

As discussed internally, remove generic ONLY: ... for new _mod_h modules
File size: 7.2 KB
Line 
1SUBROUTINE MACv2SP(pphis,pplay,paprs,xlon,xlat,tau_allaer,piz_allaer,cg_allaer)
2  !
3  !--routine to read the MACv2SP plume and compute optical properties
4  !--requires flag_aerosol = 7
5  !--feeds into aerosol optical properties and newmicro cloud droplet size if ok_cdnc activated
6  !--for this one needs to feed natural (pre-industrial) aerosols twice for nat and 1980 files
7  !--pre-ind aerosols (index=1) are not changed, present-day aerosols (index=2) are incremented
8  !--uses model year so year_cur needs to be correct in the model simulation
9  !
10  !--aod_prof = AOD per layer
11  !--ssa_prof = SSA
12  !--asy_prof = asymetry parameter
13  !--dNovrN   = enhancement factor for CDNC
14  !
15  USE mo_simple_plumes, ONLY: sp_aop_profile
16  USE phys_cal_mod, ONLY : year_cur, day_cur, year_len
17  USE dimphy
18  USE aero_mod
19  USE phys_local_var_mod, ONLY: t_seri, od443aer, od550aer, od865aer, ec550aer, dryod550aer, od550lt1aer, dNovrN
20  !!USE YOMCST, ONLY : RD, RG
21  !
22  USE yomcst_mod_h
23IMPLICIT NONE
24  !
25
26  !
27  REAL,DIMENSION(klon),INTENT(IN)        :: pphis   ! Geopotentiel de surface
28  REAL,DIMENSION(klon,klev),INTENT(IN)   :: pplay   ! pression pour le mileu de chaque couche (en Pa)
29  REAL,DIMENSION(klon,klev+1),INTENT(IN) :: paprs   ! pression pour les interfaces de chaque couche (en Pa)
30  REAL,DIMENSION(klon),INTENT(IN)        :: xlat    ! latitudes pour chaque point
31  REAL,DIMENSION(klon),INTENT(IN)        :: xlon    ! longitudes pour chaque point
32  !
33  REAL, DIMENSION(klon,klev,2,nbands_sw_rrtm), INTENT(OUT) :: tau_allaer !  epaisseur optique aerosol
34  REAL, DIMENSION(klon,klev,2,nbands_sw_rrtm), INTENT(OUT) :: piz_allaer !  single scattering albedo aerosol
35  REAL, DIMENSION(klon,klev,2,nbands_sw_rrtm), INTENT(OUT) :: cg_allaer  !  asymmetry parameter aerosol
36  !
37  REAL,DIMENSION(klon,klev) :: aod_prof, ssa_prof, asy_prof
38  REAL,DIMENSION(klon,klev) :: z, dz
39  REAL,DIMENSION(klon)      :: oro, zrho, zt
40  !
41  INTEGER, PARAMETER :: nmon = 12
42  !
43  REAL, PARAMETER    :: l443 = 443.0, l550 = 550.0, l865 = 865.0 !--wavelengths in nm
44  !
45  INTEGER, PARAMETER :: Nwvmax=25
46  REAL, DIMENSION(0:Nwvmax), PARAMETER :: lambda=(/ 240.0, &  !--this one is for band 1
47                  280.0,  300.0,  330.0,  360.0,  400.0,   &  !--these are bounds of Streamer bands
48                  440.0,  480.0,  520.0,  570.0,  640.0,   &
49                  690.0,  750.0,  780.0,  870.0, 1000.0,   &
50                 1100.0, 1190.0, 1280.0, 1530.0, 1640.0,   &
51                 2130.0, 2380.0, 2910.0, 3420.0, 4000.0   /)
52  !
53  REAL, DIMENSION(1:Nwvmax-1), PARAMETER :: weight =(/    &   !--and the weights to be given to the bands
54                 0.01,  4.05,  9.51, 15.99, 26.07, 33.10, &   !--corresponding to a typical solar spectrum
55                33.07, 39.91, 52.67, 27.89, 43.60, 13.67, &
56                42.22, 40.12, 32.70, 14.44, 19.48, 14.23, &
57                13.43, 16.42,  8.33,  0.95,  0.65,  2.76  /)
58  !
59  REAL :: zlambda, zweight
60  REAL :: year_fr
61  !
62  INTEGER band, i, k, Nwv
63  !
64  ! define the height and dheight arrays
65  !
66  oro(:)  = pphis(:)/RG                             ! surface height in m
67  !
68  DO k = 1, klev
69    zrho(:) = pplay(:,k)/t_seri(:,k)/RD                         ! air density in kg/m3
70    dz(:,k) = (paprs(:,k)-paprs(:,k+1))/zrho(:)/RG              ! layer thickness in m
71    IF (k==1) THEN
72       z(:,1) = oro(:) + (paprs(:,1)-pplay(:,1))/zrho(:)/RG     ! altitude middle of first layer in m
73       zt(:)  = oro(:) + dz(:,1)                                ! altitude top of first layer in m
74    ELSE
75      z(:,k) = zt(:) + (paprs(:,k)-pplay(:,k))/zrho(:)/RG       ! altitude middle of layer k in m
76      zt(:)  = zt(:) + dz(:,k)                                  ! altitude top of layer k in m
77    ENDIF
78  ENDDO
79  !
80  !--fractional year
81  !
82  year_fr = FLOAT(year_cur) + (FLOAT(day_cur)-0.5) / FLOAT(year_len)
83  IF (year_fr.LT.1850.0.OR.year_fr.GE.2017.0) THEN
84     CALL abort_physic ('macv2sp','year not supported by plume model',1)
85  ENDIF
86  !
87  !--call to sp routine -- 443 nm
88  !
89  CALL sp_aop_profile                                    ( &
90       klev     ,klon ,l443 ,oro    ,xlon     ,xlat      , &
91       year_fr  ,z    ,dz   ,dNovrN ,aod_prof ,ssa_prof  , &
92       asy_prof )
93  !
94  !--AOD calculations for diagnostics
95  od443aer(:)= od443aer(:)+SUM(aod_prof(:,:),dim=2)
96  !
97  !--call to sp routine -- 550 nm
98  !
99  CALL sp_aop_profile                                    ( &
100       klev     ,klon ,l550 ,oro    ,xlon     ,xlat      , &
101       year_fr  ,z    ,dz   ,dNovrN ,aod_prof ,ssa_prof  , &
102       asy_prof )
103  !
104  !--AOD calculations for diagnostics
105  od550aer(:)=od550aer(:)+SUM(aod_prof(:,:),dim=2)
106  !
107  !--dry AOD calculation for diagnostics
108  dryod550aer(:)=dryod550aer(:)+od550aer(:)
109  !
110  !--fine-mode AOD calculation for diagnostics
111  od550lt1aer(:)=od550lt1aer(:)+od550aer(:)
112  !
113  !--extinction coefficient for diagnostic
114  ec550aer(:,:)=ec550aer(:,:)+aod_prof(:,:)/dz(:,:)
115  !
116  !--call to sp routine -- 865 nm
117  !
118  CALL sp_aop_profile                                    ( &
119       klev     ,klon ,l865 ,oro    ,xlon     ,xlat      , &
120       year_fr  ,z    ,dz   ,dNovrN ,aod_prof ,ssa_prof  , &
121       asy_prof )
122  !
123  !--AOD calculations for diagnostics
124  od865aer(:)=od865aer(:)+SUM(aod_prof(:,:),dim=2)
125  !
126  !--re-weighting of piz and cg arrays before adding the anthropogenic aerosols
127  !--index 2 = all natural + anthropogenic aerosols
128  piz_allaer(:,:,2,:)=piz_allaer(:,:,2,:)*tau_allaer(:,:,2,:)
129  cg_allaer(:,:,2,:) =cg_allaer(:,:,2,:)*piz_allaer(:,:,2,:)
130  !
131  !--now computing the same at many wavelengths to fill the model bands
132  !
133  DO Nwv=0,Nwvmax-1
134
135    IF (Nwv.EQ.0) THEN          !--RRTM spectral band 1
136      zlambda=lambda(Nwv)
137      zweight=1.0
138      band=1
139    ELSEIF (Nwv.LE.5) THEN      !--RRTM spectral band 2
140      zlambda=0.5*(lambda(Nwv)+lambda(Nwv+1))
141      zweight=weight(Nwv)/SUM(weight(1:5))
142      band=2
143    ELSEIF (Nwv.LE.10) THEN     !--RRTM spectral band 3
144      zlambda=0.5*(lambda(Nwv)+lambda(Nwv+1))
145      zweight=weight(Nwv)/SUM(weight(6:10))
146      band=3
147    ELSEIF (Nwv.LE.16) THEN     !--RRTM spectral band 4
148      zlambda=0.5*(lambda(Nwv)+lambda(Nwv+1))
149      zweight=weight(Nwv)/SUM(weight(11:16))
150      band=4
151    ELSEIF (Nwv.LE.21) THEN     !--RRTM spectral band 5
152      zlambda=0.5*(lambda(Nwv)+lambda(Nwv+1))
153      zweight=weight(Nwv)/SUM(weight(17:21))
154      band=5
155    ELSE                        !--RRTM spectral band 6
156      zlambda=0.5*(lambda(Nwv)+lambda(Nwv+1))
157      zweight=weight(Nwv)/SUM(weight(22:Nwvmax-1))
158      band=6
159    ENDIF
160    !
161    CALL sp_aop_profile                                       ( &
162         klev     ,klon ,zlambda ,oro    ,xlon     ,xlat      , &
163         year_fr  ,z    ,dz      ,dNovrN ,aod_prof ,ssa_prof  , &
164         asy_prof )
165    !
166    !--adding up the quantities tau, piz*tau and cg*piz*tau
167    tau_allaer(:,:,2,band)=tau_allaer(:,:,2,band)+zweight*MAX(aod_prof(:,:),1.e-15)
168    piz_allaer(:,:,2,band)=piz_allaer(:,:,2,band)+zweight*MAX(aod_prof(:,:),1.e-15)*ssa_prof(:,:)
169    cg_allaer(:,:,2,band) =cg_allaer(:,:,2,band) +zweight*MAX(aod_prof(:,:),1.e-15)*ssa_prof(:,:)*asy_prof(:,:)
170    !
171  ENDDO
172  !
173  !--renpomalizing cg and piz now that MACv2SP increments have been added
174  cg_allaer(:,:,2,:) =cg_allaer(:,:,2,:) /piz_allaer(:,:,2,:)
175  piz_allaer(:,:,2,:)=piz_allaer(:,:,2,:)/tau_allaer(:,:,2,:)
176  !
177END SUBROUTINE MACv2SP
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