source: LMDZ6/branches/LMDZ_ECRad/libf/phylmd/ecrad/ifsrrtm/rrtm_taumol12.F90 @ 4999

Last change on this file since 4999 was 4728, checked in by idelkadi, 11 months ago

Update of ecrad in the LMDZ_ECRad branch of LMDZ:

  • version 1.6.1 of ecrad
  • files are no longer grouped in the same ecrad directory.
  • the structure of ecrad offline is preserved to facilitate updating in LMDZ
  • cfg.bld modified to take into account the new added subdirectories.
  • the interface routines and those added in ecrad are moved to the phylmd directory
File size: 10.8 KB
Line 
1!----------------------------------------------------------------------------
2SUBROUTINE RRTM_TAUMOL12 (KIDIA,KFDIA,KLEV,P_TAU,&
3 & P_TAUAERL,P_FAC00,P_FAC01,P_FAC10,P_FAC11,P_FORFAC,P_FORFRAC,K_INDFOR,K_JP,K_JT,K_JT1,P_ONEMINUS,&
4 & P_COLH2O,P_COLCO2,K_LAYTROP,P_SELFFAC,P_SELFFRAC,K_INDSELF,PFRAC, & 
5 & PRAT_H2OCO2, PRAT_H2OCO2_1)
6
7!     BAND 12:  1800-2080 cm-1 (low - H2O,CO2; high - nothing)
8
9!     AUTHOR.
10!     -------
11!      JJMorcrette, ECMWF
12
13!     MODIFICATIONS.
14!     --------------
15!      M.Hamrud      01-Oct-2003 CY28 Cleaning
16!      NEC           25-Oct-2007 Optimisations
17!      JJMorcrette 20110613 flexible number of g-points
18!      ABozzo updated to rrtmg v4.85
19! ---------------------------------------------------------------------------
20
21USE PARKIND1  ,ONLY : JPIM     ,JPRB
22USE YOMHOOK   ,ONLY : LHOOK, DR_HOOK, JPHOOK
23
24USE PARRRTM  , ONLY : JPBAND
25USE YOERRTM  , ONLY : JPGPT  ,NG12 ,NGS11
26USE YOERRTWN , ONLY :      NSPA   
27USE YOERRTA12, ONLY : ABSA   ,FRACREFA,SELFREF,FORREF
28USE YOERRTRF, ONLY : CHI_MLS
29
30IMPLICIT NONE
31
32INTEGER(KIND=JPIM),INTENT(IN)    :: KIDIA
33INTEGER(KIND=JPIM),INTENT(IN)    :: KFDIA
34INTEGER(KIND=JPIM),INTENT(IN)    :: KLEV
35REAL(KIND=JPRB)   ,INTENT(OUT)   :: P_TAU(KIDIA:KFDIA,JPGPT,KLEV)
36REAL(KIND=JPRB)   ,INTENT(IN)    :: P_TAUAERL(KIDIA:KFDIA,KLEV,JPBAND)
37REAL(KIND=JPRB)   ,INTENT(IN)    :: P_FAC00(KIDIA:KFDIA,KLEV)
38REAL(KIND=JPRB)   ,INTENT(IN)    :: P_FAC01(KIDIA:KFDIA,KLEV)
39REAL(KIND=JPRB)   ,INTENT(IN)    :: P_FAC10(KIDIA:KFDIA,KLEV)
40REAL(KIND=JPRB)   ,INTENT(IN)    :: P_FAC11(KIDIA:KFDIA,KLEV)
41INTEGER(KIND=JPIM),INTENT(IN)    :: K_JP(KIDIA:KFDIA,KLEV)
42INTEGER(KIND=JPIM),INTENT(IN)    :: K_JT(KIDIA:KFDIA,KLEV)
43INTEGER(KIND=JPIM),INTENT(IN)    :: K_JT1(KIDIA:KFDIA,KLEV)
44REAL(KIND=JPRB)   ,INTENT(IN)    :: P_ONEMINUS
45REAL(KIND=JPRB)   ,INTENT(IN)    :: P_COLH2O(KIDIA:KFDIA,KLEV)
46REAL(KIND=JPRB)   ,INTENT(IN)    :: P_COLCO2(KIDIA:KFDIA,KLEV)
47INTEGER(KIND=JPIM),INTENT(IN)    :: K_LAYTROP(KIDIA:KFDIA)
48REAL(KIND=JPRB)   ,INTENT(IN)    :: P_SELFFAC(KIDIA:KFDIA,KLEV)
49REAL(KIND=JPRB)   ,INTENT(IN)    :: P_SELFFRAC(KIDIA:KFDIA,KLEV)
50INTEGER(KIND=JPIM),INTENT(IN)    :: K_INDSELF(KIDIA:KFDIA,KLEV)
51REAL(KIND=JPRB)   ,INTENT(OUT)   :: PFRAC(KIDIA:KFDIA,JPGPT,KLEV)
52
53REAL(KIND=JPRB)   ,INTENT(IN)   :: PRAT_H2OCO2(KIDIA:KFDIA,KLEV)
54REAL(KIND=JPRB)   ,INTENT(IN)   :: PRAT_H2OCO2_1(KIDIA:KFDIA,KLEV)
55INTEGER(KIND=JPIM),INTENT(IN)   :: K_INDFOR(KIDIA:KFDIA,KLEV)
56REAL(KIND=JPRB)   ,INTENT(IN)   :: P_FORFRAC(KIDIA:KFDIA,KLEV)
57REAL(KIND=JPRB)   ,INTENT(IN)   :: P_FORFAC(KIDIA:KFDIA,KLEV)
58
59
60! ---------------------------------------------------------------------------
61
62REAL(KIND=JPRB) :: Z_SPECCOMB(KLEV),Z_SPECCOMB1(KLEV),Z_SPECCOMB_PLANCK(KLEV)
63INTEGER(KIND=JPIM) :: IND0(KLEV),IND1(KLEV),INDS(KLEV),INDF(KLEV)
64
65INTEGER(KIND=JPIM) :: IG, JS, JLAY,JS1, JPL
66INTEGER(KIND=JPIM) :: JLON
67
68! REAL(KIND=JPRB) :: Z_FAC000, Z_FAC001, Z_FAC010, Z_FAC011, Z_FAC100, Z_FAC101,&
69!  & Z_FAC110, Z_FAC111
70REAL(KIND=JPRB) :: Z_FS, Z_SPECMULT, Z_SPECPARM,  &
71& Z_FS1, Z_SPECMULT1, Z_SPECPARM1, &
72& Z_FPL, Z_SPECMULT_PLANCK, Z_SPECPARM_PLANCK
73
74REAL(KIND=JPRB) ::  Z_FAC000, Z_FAC100, Z_FAC200,&
75 & Z_FAC010, Z_FAC110, Z_FAC210, &
76 & Z_FAC001, Z_FAC101, Z_FAC201, &
77 & Z_FAC011, Z_FAC111, Z_FAC211
78REAL(KIND=JPRB) :: ZP, ZP4, ZFK0, ZFK1, ZFK2
79REAL(KIND=JPRB) :: ZTAUFOR,ZTAUSELF,ZTAU_MAJOR,ZTAU_MAJOR1
80REAL(KIND=JPRB) :: ZREFRAT_PLANCK_A
81
82REAL(KIND=JPHOOK) :: ZHOOK_HANDLE
83
84!  ----------------------------------------------------------
85
86IF (LHOOK) CALL DR_HOOK('RRTM_TAUMOL12',0,ZHOOK_HANDLE)
87
88! Calculate reference ratio to be used in calculation of Planck
89! fraction in lower/upper atmosphere.
90
91! P =   174.164 mb
92      ZREFRAT_PLANCK_A = CHI_MLS(1,10)/CHI_MLS(2,10)
93
94! Compute the optical depth by interpolating in ln(pressure),
95! temperature, and appropriate species.  Below laytrop, the water
96! vapor self-continuum adn foreign continuum is interpolated
97! (in temperature) separately. 
98
99DO JLAY = 1, KLEV
100  DO JLON = KIDIA, KFDIA
101    IF (JLAY <= K_LAYTROP(JLON)) THEN
102      Z_SPECCOMB(JLAY) = P_COLH2O(JLON,JLAY) + PRAT_H2OCO2(JLON,JLAY)*P_COLCO2(JLON,JLAY)
103      Z_SPECPARM = P_COLH2O(JLON,JLAY)/Z_SPECCOMB(JLAY)
104      Z_SPECPARM=MIN(P_ONEMINUS,Z_SPECPARM)
105      Z_SPECMULT = 8._JPRB*(Z_SPECPARM)
106      JS = 1 + INT(Z_SPECMULT)
107      Z_FS = MOD(Z_SPECMULT,1.0_JPRB)
108
109      Z_SPECCOMB1(JLAY) = P_COLH2O(JLON,JLAY) + PRAT_H2OCO2_1(JLON,JLAY)*P_COLCO2(JLON,JLAY)
110      Z_SPECPARM1 = P_COLH2O(JLON,JLAY)/Z_SPECCOMB1(JLAY)
111      IF (Z_SPECPARM1 >= P_ONEMINUS) Z_SPECPARM1 = P_ONEMINUS
112      Z_SPECMULT1 = 8._JPRB*(Z_SPECPARM1)
113      JS1 = 1 + INT(Z_SPECMULT1)
114      Z_FS1 = MOD(Z_SPECMULT1,1.0_JPRB)
115
116      Z_SPECCOMB_PLANCK(JLAY) = P_COLH2O(JLON,JLAY)+ZREFRAT_PLANCK_A*P_COLCO2(JLON,JLAY)
117      Z_SPECPARM_PLANCK = P_COLH2O(JLON,JLAY)/Z_SPECCOMB_PLANCK(JLAY)
118      IF (Z_SPECPARM_PLANCK >= P_ONEMINUS) Z_SPECPARM_PLANCK=P_ONEMINUS
119      Z_SPECMULT_PLANCK = 8._JPRB*Z_SPECPARM_PLANCK
120      JPL= 1 + INT(Z_SPECMULT_PLANCK)
121      Z_FPL = MOD(Z_SPECMULT_PLANCK,1.0_JPRB)
122
123      IND0(JLAY) = ((K_JP(JLON,JLAY)-1)*5+(K_JT(JLON,JLAY)-1))*NSPA(12) + JS
124      IND1(JLAY) = (K_JP(JLON,JLAY)*5+(K_JT1(JLON,JLAY)-1))*NSPA(12) + JS1
125      INDS(JLAY) = K_INDSELF(JLON,JLAY)
126      INDF(JLAY) = K_INDFOR(JLON,JLAY)
127
128  IF (Z_SPECPARM < 0.125_JPRB) THEN
129            ZP = Z_FS - 1
130            ZP4 = ZP**4
131            ZFK0 = ZP4
132            ZFK1 = 1 - ZP - 2.0_JPRB*ZP4
133            ZFK2 = ZP + ZP4
134            Z_FAC000 = ZFK0*P_FAC00(JLON,JLAY)
135            Z_FAC100 = ZFK1*P_FAC00(JLON,JLAY)
136            Z_FAC200 = ZFK2*P_FAC00(JLON,JLAY)
137            Z_FAC010 = ZFK0*P_FAC10(JLON,JLAY)
138            Z_FAC110 = ZFK1*P_FAC10(JLON,JLAY)
139            Z_FAC210 = ZFK2*P_FAC10(JLON,JLAY)
140      ELSEIF (Z_SPECPARM > 0.875_JPRB) THEN
141            ZP = -Z_FS
142            ZP4 = ZP**4
143            ZFK0 = ZP4
144            ZFK1 = 1 - ZP - 2.0_JPRB*ZP4
145            ZFK2 = ZP + ZP4
146            Z_FAC000 = ZFK0*P_FAC00(JLON,JLAY)
147            Z_FAC100 = ZFK1*P_FAC00(JLON,JLAY)
148            Z_FAC200 = ZFK2*P_FAC00(JLON,JLAY)
149            Z_FAC010 = ZFK0*P_FAC10(JLON,JLAY)
150            Z_FAC110 = ZFK1*P_FAC10(JLON,JLAY)
151            Z_FAC210 = ZFK2*P_FAC10(JLON,JLAY)
152      ELSE
153            Z_FAC000 = (1._JPRB - Z_FS) * P_FAC00(JLON,JLAY)
154            Z_FAC010 = (1._JPRB - Z_FS) * P_FAC10(JLON,JLAY)
155            Z_FAC100 = Z_FS * P_FAC00(JLON,JLAY)
156            Z_FAC110 = Z_FS * P_FAC10(JLON,JLAY)
157      ENDIF
158      IF (Z_SPECPARM1 < 0.125_JPRB) THEN
159            ZP = Z_FS1 - 1
160            ZP4 = ZP**4
161            ZFK0 = ZP4
162            ZFK1 = 1 - ZP - 2.0_JPRB*ZP4
163            ZFK2 = ZP + ZP4
164            Z_FAC001 = ZFK0*P_FAC01(JLON,JLAY)
165            Z_FAC101 = ZFK1*P_FAC01(JLON,JLAY)
166            Z_FAC201 = ZFK2*P_FAC01(JLON,JLAY)
167            Z_FAC011 = ZFK0*P_FAC11(JLON,JLAY)
168            Z_FAC111 = ZFK1*P_FAC11(JLON,JLAY)
169            Z_FAC211 = ZFK2*P_FAC11(JLON,JLAY)
170      ELSEIF (Z_SPECPARM1 > 0.875_JPRB) THEN
171            ZP = -Z_FS1
172            ZP4 = ZP**4
173            ZFK0 = ZP4
174            ZFK1 = 1 - ZP - 2.0_JPRB*ZP4
175            ZFK2 = ZP + ZP4
176            Z_FAC001 = ZFK0*P_FAC01(JLON,JLAY)
177            Z_FAC101 = ZFK1*P_FAC01(JLON,JLAY)
178            Z_FAC201 = ZFK2*P_FAC01(JLON,JLAY)
179            Z_FAC011 = ZFK0*P_FAC11(JLON,JLAY)
180            Z_FAC111 = ZFK1*P_FAC11(JLON,JLAY)
181            Z_FAC211 = ZFK2*P_FAC11(JLON,JLAY)
182      ELSE
183            Z_FAC001 = (1._JPRB - Z_FS1) * P_FAC01(JLON,JLAY)
184            Z_FAC011 = (1._JPRB - Z_FS1) * P_FAC11(JLON,JLAY)
185            Z_FAC101 = Z_FS1 * P_FAC01(JLON,JLAY)
186            Z_FAC111 = Z_FS1 * P_FAC11(JLON,JLAY)
187      ENDIF
188
189
190
191!-- DS_000515
192!CDIR UNROLL=NG12
193      DO IG = 1, NG12
194!-- DS_000515
195        ZTAUSELF = P_SELFFAC(JLON,JLAY)* (SELFREF(INDS(JLAY),IG) + P_SELFFRAC(JLON,JLAY) * &
196          &       (SELFREF(INDS(JLAY)+1,IG) - SELFREF(INDS(JLAY),IG)))
197        ZTAUFOR = P_FORFAC(JLON,JLAY) * (FORREF(INDF(JLAY),IG) + P_FORFRAC(JLON,JLAY) * &
198          &       (FORREF(INDF(JLAY)+1,IG) - FORREF(INDF(JLAY),IG)))
199
200            IF (Z_SPECPARM < 0.125_JPRB) THEN
201               ZTAU_MAJOR = Z_SPECCOMB(JLAY) * &
202                 &   (Z_FAC000 * ABSA(IND0(JLAY),IG) + &
203                 &   Z_FAC100 * ABSA(IND0(JLAY)+1,IG) + &
204                 &   Z_FAC200 * ABSA(IND0(JLAY)+2,IG) + &
205                 &   Z_FAC010 * ABSA(IND0(JLAY)+9,IG) + &
206                 &   Z_FAC110 * ABSA(IND0(JLAY)+10,IG) + &
207                 &   Z_FAC210 * ABSA(IND0(JLAY)+11,IG))
208            ELSEIF (Z_SPECPARM > 0.875_JPRB) THEN
209               ZTAU_MAJOR = Z_SPECCOMB(JLAY) * &
210                 &   (Z_FAC200 * ABSA(IND0(JLAY)-1,IG) + &
211                 &   Z_FAC100 * ABSA(IND0(JLAY),IG) + &
212                 &   Z_FAC000 * ABSA(IND0(JLAY)+1,IG) + &
213                 &   Z_FAC210 * ABSA(IND0(JLAY)+8,IG) + &
214                 &   Z_FAC110 * ABSA(IND0(JLAY)+9,IG) + &
215                 &   Z_FAC010 * ABSA(IND0(JLAY)+10,IG))
216            ELSE
217               ZTAU_MAJOR = Z_SPECCOMB(JLAY) * &
218                 &   (Z_FAC000 * ABSA(IND0(JLAY),IG) + &
219                 &   Z_FAC100 * ABSA(IND0(JLAY)+1,IG) + &
220                 &   Z_FAC010 * ABSA(IND0(JLAY)+9,IG) + &
221                 &   Z_FAC110 * ABSA(IND0(JLAY)+10,IG))
222            ENDIF
223
224            IF (Z_SPECPARM1 < 0.125_JPRB) THEN
225               ZTAU_MAJOR1 = Z_SPECCOMB1(JLAY) * &
226                &    (Z_FAC001 * ABSA(IND1(JLAY),IG) + &
227                &    Z_FAC101 * ABSA(IND1(JLAY)+1,IG) + &
228                &    Z_FAC201 * ABSA(IND1(JLAY)+2,IG) + &
229                &    Z_FAC011 * ABSA(IND1(JLAY)+9,IG) + &
230                &    Z_FAC111 * ABSA(IND1(JLAY)+10,IG) + &
231                &    Z_FAC211 * ABSA(IND1(JLAY)+11,IG))
232            ELSEIF (Z_SPECPARM1 > 0.875_JPRB) THEN
233               ZTAU_MAJOR1 = Z_SPECCOMB1(JLAY) * &
234                &    (Z_FAC201 * ABSA(IND1(JLAY)-1,IG) + &
235                &    Z_FAC101 * ABSA(IND1(JLAY),IG) + &
236                &    Z_FAC001 * ABSA(IND1(JLAY)+1,IG) + &
237                &    Z_FAC211 * ABSA(IND1(JLAY)+8,IG) + &
238                &    Z_FAC111 * ABSA(IND1(JLAY)+9,IG) + &
239                &    Z_FAC011 * ABSA(IND1(JLAY)+10,IG))
240            ELSE
241               ZTAU_MAJOR1 = Z_SPECCOMB1(JLAY) * &
242                &    (Z_FAC001 * ABSA(IND1(JLAY),IG) +  &
243                &    Z_FAC101 * ABSA(IND1(JLAY)+1,IG) + &
244                &    Z_FAC011 * ABSA(IND1(JLAY)+9,IG) + &
245                &    Z_FAC111 * ABSA(IND1(JLAY)+10,IG))
246            ENDIF
247
248        P_TAU(JLON,NGS11+IG,JLAY) = ZTAU_MAJOR + ZTAU_MAJOR1 &
249         & + ZTAUSELF + ZTAUFOR &
250         & + P_TAUAERL(JLON,JLAY,12) 
251        PFRAC(JLON,NGS11+IG,JLAY) = FRACREFA(IG,JPL) + Z_FPL *&
252         & (FRACREFA(IG,JPL+1) - FRACREFA(IG,JPL))
253      ENDDO
254    ENDIF
255
256!-- JJM_000517
257    IF (JLAY > K_LAYTROP(JLON)) THEN
258!CDIR UNROLL=NG12
259      DO IG = 1, NG12
260!-- JJM_000517
261        P_TAU(JLON,NGS11+IG,JLAY) = P_TAUAERL(JLON,JLAY,12)
262        PFRAC(JLON,NGS11+IG,JLAY) = 0.0_JPRB
263      ENDDO
264    ENDIF
265  ENDDO
266ENDDO
267
268IF (LHOOK) CALL DR_HOOK('RRTM_TAUMOL12',1,ZHOOK_HANDLE)
269
270END SUBROUTINE RRTM_TAUMOL12
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