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C $Header$ |
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C $Name$ |
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SUBROUTINE SOL_OZ (SOLC,TYEAR,FSOL,OZONE) |
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C-- |
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C-- SUBROUTINE SOL_OZ (SOLC,TYEAR,FSOL,OZONE) |
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C-- |
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C-- Purpose: Compute the flux of incoming solar radiation |
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C-- and a climatological ozone profile for SW absorption |
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C-- Input: SOLC = solar constant (area averaged) |
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C-- TYEAR = time as fraction of year (0-1, 0 = 1jan.h00) |
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C-- Output: FSOL = flux of incoming solar radiation (2-dim) |
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C-- OZONE = strat. ozone as fraction of global mean (2-dim) |
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C-- |
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IMPLICIT rEAL*8 (A-H,O-Z) |
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C Resolution parameters |
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C |
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#include "atparam.h" |
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#include "atparam1.h" |
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C |
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PARAMETER ( NLON=IX, NLAT=IL, NLEV=KX, NGP=NLON*NLAT ) |
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C |
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C Constants + functions of sigma and latitude |
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C |
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#include "com_physcon.h" |
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REAL FSOL(NLON,NLAT), OZONE(NLON,NLAT) |
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C |
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C ALPHA = year phase ( 0 - 2pi, 0 = winter solstice = 22dec.h00 ) |
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ALPHA=4.*ASIN(1.)*(TYEAR+10./365.) |
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CSR1=-0.796*COS(ALPHA) |
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CSR2= 0.147*COS(2*ALPHA)-0.477 |
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COZ1= 0.0 |
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C COZ1= 0.2*SIN(ALPHA) |
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COZ2= 0.3 |
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C |
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DO J=1,NLAT |
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FSOL(1,J)=SOLC*MAX(0.,1.0+CSR1*FMU(J,1)+CSR2*FMU(J,2)) |
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OZONE(1,J)=1.0+COZ1*FMU(J,1)+COZ2*FMU(J,2) |
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DO I=2,NLON |
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FSOL(I,J)=FSOL(1,J) |
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OZONE(I,J)=OZONE(1,J) |
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ENDDO |
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ENDDO |
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C |
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RETURN |
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END |
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SUBROUTINE RADSW (PSA,QA,RH, |
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* FSOL,OZONE,ALB, |
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* CLOUDC,FTOP,FSFC,DFABS) |
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C-- |
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C-- SUBROUTINE RADSW (PSA,QA,RH, |
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C-- * FSOL,OZONE,ALB, |
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C-- * CLOUDC,FTOP,FSFC,DFABS) |
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C-- |
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C-- Purpose: Compute the absorption of shortwave radiation and |
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C-- initialize arrays for longwave-radiation routines |
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C-- Input: PSA = norm. surface pressure [p/p0] (2-dim) |
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C-- QA = specific humidity [g/kg] (3-dim) |
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C-- RH = relative humidity (3-dim) |
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C-- FSOL = flux of incoming solar radiation (2-dim) |
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C-- OZONE = strat. ozone as fraction of global mean (2-dim) |
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C-- ALB = surface albedo (2-dim) |
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C-- Output: CLOUDC = total cloud cover (2-dim) |
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C-- FTOP = net downw. flux of sw rad. at the atm. top (2-dim) |
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C-- FSFC = net downw. flux of sw rad. at the surface (2-dim) |
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C-- DFABS = flux of sw rad. absorbed by each atm. layer (3-dim) |
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C-- |
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IMPLICIT rEAL*8 (A-H,O-Z) |
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C Resolution parameters |
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C |
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#include "atparam.h" |
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#include "atparam1.h" |
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#include "Lev_def.h" |
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C |
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PARAMETER ( NLON=IX, NLAT=IL, NLEV=KX, NGP=NLON*NLAT ) |
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C |
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C Constants + functions of sigma and latitude |
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C |
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#include "com_physcon.h" |
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C |
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C Radiation parameters |
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C |
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#include "com_radcon.h" |
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C |
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REAL PSA(NGP), QA(NGP,NLEV), RH(NGP,NLEV), |
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* FSOL(NGP), OZONE(NGP), ALB(NGP) |
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REAL CLOUDC(NGP), FTOP(NGP), FSFC(NGP), DFABS(NGP,NLEV) |
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REAL FLUX(NGP), FREFL(NGP), TAUOZ(NGP) |
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INTEGER NL1(NGP) |
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Cchdbg |
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INTEGER Npas |
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SAVE npas |
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LOGICAL Ifirst |
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SAVE Ifirst |
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DATA Ifirst /.TRUE./ |
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REAL clsum(NGP) |
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SAVE clsum |
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REAL ABWLW1 |
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cchdbg |
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C |
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DO J=1,NGP |
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NL1(J)=NLEVxy(J)-1 |
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ENDDO |
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C |
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C-- 1. Cloud cover: |
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C defined as a linear fun. of the maximum relative humidity |
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C in all tropospheric layers above PBL: |
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C CLOUDC = 0 for RHmax < RHCL1, = 1 for RHmax > RHCL2. |
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C This value is reduced by a factor (Qbase/QACL) if the |
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C cloud-base absolute humidity Qbase < QACL. |
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C |
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DRHCL=RHCL2-RHCL1 |
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RCL=1./(DRHCL*QACL) |
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C |
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DO 122 J=1,NGP |
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CLOUDC(J)=0. |
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122 CONTINUE |
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C |
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DO 123 K=1,NLEV |
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DO 123 J=1,NGP |
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DFABS(J,K)=0. |
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123 CONTINUE |
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C |
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DO 124 J=1,NGP |
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DO 124 K=2,NL1(J) |
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CLOUDC(J)=MAX(CLOUDC(J),(RH(J,K)-RHCL1)) |
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124 CONTINUE |
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C |
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DO 126 J=1,NGP |
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IF ( NL1(J) .GT. 0 ) THEN |
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CLOUDC(J)=MIN(CLOUDC(J),DRHCL)*MIN(QA(J,NL1(J)),QACL)*RCL |
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ENDIF |
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cchdbg ******************************************* |
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cchdbg CLOUDC(J)=MIN(CLOUDC(J),DRHCL)/DRHCL |
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cchdbg ******************************************* |
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clear sky experiment |
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c cloudc(j) = 0. |
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126 CONTINUE |
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C |
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C |
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C-- 2. Shortwave transmissivity: |
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C function of layer mass, ozone (in the statosphere), |
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C abs. humidity and cloud cover (in the troposphere) |
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C |
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DO 202 J=1,NGP |
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TAU(J,1)=EXP(-ABSSW*PSA(J)*DSIG(1)) |
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TAUOZ(J)=EXP(-EPSSW*OZONE(J)*PSA(J)) |
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202 CONTINUE |
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C |
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chhh WRITE(0,*) ' Hello from RADSW' |
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DO 204 J=1,NGP |
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DO 204 K=2,NL1(J) |
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TAU(J,K)=EXP(-(ABSSW+ABWSW*QA(J,K) |
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* +ABCSW*CLOUDC(J)*QA(J,NL1(J)))*PSA(J)*DSIG(K)) |
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204 CONTINUE |
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|
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DO 206 J=1,NGP |
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IF ( NLEVxy(J) .GT. 0 ) THEN |
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TAU(J,NLEVxy(J))=EXP(-(ABSSW+ABWSW*QA(J,NLEVxy(J))) |
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* *PSA(J)*DSIG(NLEVxy(J))) |
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ENDIF |
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206 CONTINUE |
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C |
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C--- 3. Shortwave downward flux |
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C |
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C 3.1 Absorption in the stratosphere |
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C |
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DO 312 J=1,NGP |
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FLUX(J)=TAU(J,1)*TAUOZ(J)*FSOL(J) |
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DFABS(J,1)=FSOL(J)-FLUX(J) |
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312 CONTINUE |
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C |
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C 3.2 Reflection at the top of the troposphere |
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C (proportional to cloud cover). |
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C |
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DO 322 J=1,NGP |
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FREFL(J)=ALBCL*CLOUDC(J)*FLUX(J) |
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FTOP(J) =FSOL(J)-FREFL(J) |
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FLUX(J) =FLUX(J)-FREFL(J) |
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322 CONTINUE |
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C |
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C 3.3 Absorption in the troposphere |
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C |
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DO 332 J=1,NGP |
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DO 332 K=2,NLEVxy(J) |
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DFABS(J,K)=FLUX(J) |
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FLUX(J)=TAU(J,K)*FLUX(J) |
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DFABS(J,K)=DFABS(J,K)-FLUX(J) |
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332 CONTINUE |
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C |
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C--- 4. Shortwave upward flux |
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C |
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C 4.1 Absorption and reflection at the surface |
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C |
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DO 412 J=1,NGP |
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FREFL(J)=ALB(J)*FLUX(J) |
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FSFC(J) =FLUX(J)-FREFL(J) |
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FLUX(J) =FREFL(J) |
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412 CONTINUE |
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C |
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C 4.2 Absorption in the atmosphere |
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C |
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DO 422 J=1,NGP |
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DO 422 K=NLEVxy(J),1,-1 |
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DFABS(J,K)=DFABS(J,K)+FLUX(J) |
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FLUX(J)=TAU(J,K)*FLUX(J) |
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DFABS(J,K)=DFABS(J,K)-FLUX(J) |
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422 CONTINUE |
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C |
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C 4.3 Absorbed solar radiation = incoming - outgoing |
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C |
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DO 432 J=1,NGP |
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FTOP(J)=FTOP(J)-FLUX(J) |
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432 CONTINUE |
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cdj |
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c write(0,*)'position j=20' |
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c j=20 |
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c write(0,*)'ftop fsfc ftop-fsfc' |
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c write(0,*)ftop(j),fsfc(j),ftop(j)-fsfc(j) |
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c write(0,*) |
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c write(0,*)'k dfabs' |
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c do k = 1, nlevxy(j) |
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c write(0,*)k,dfabs(j,k) |
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c enddo |
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c write(0,*)'sum dfabs' |
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c write(0,*)sum(dfabs(j,:)) |
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cdj |
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C |
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C--- 5. Initialization of longwave radiation model |
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C |
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C 5.1 Longwave transmissivity: |
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C function of layer mass, abs. humidity and cloud cover. |
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C |
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DO 512 J=1,NGP |
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TAU(J,1)=EXP(-ABSLW*PSA(J)*DSIG(1)) |
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512 CONTINUE |
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C |
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DO 514 J=1,NGP |
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DO 514 K=2,NL1(J) |
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TAU(J,K)=EXP(-(ABSLW+ABWLW*QA(J,K) |
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* +ABCLW*CLOUDC(J)*QA(J,NL1(J)))*PSA(J)*DSIG(K)) |
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514 CONTINUE |
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C |
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cchdbg *************************************************** |
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c ABCLW1=0.15 |
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c DO 514 J=1,NGP |
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c DO 514 K=2,NL1(J)-1 |
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c TAU(J,K)=EXP(-(ABSLW+ABWLW*QA(J,K) |
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c * +ABCLW1*CLOUDC(J)*QA(J,NL1(J)))*PSA(J)*DSIG(K)) |
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c 514 CONTINUE |
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C |
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c DO 515 J=1,NGP |
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c DO 515 K=NL1(J),NL1(J) |
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c TAU(J,K)=EXP(-(ABSLW+ABWLW*QA(J,K) |
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c * +ABCLW*CLOUDC(J))*PSA(J)*DSIG(K)) |
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c 515 CONTINUE |
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cchdbg ************************************************************ |
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C |
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C ********************************************************************* |
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C ********************************************************************* |
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C ***************************************************************** |
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cchdbg |
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c if(Ifirst) then |
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c npas=0 |
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c do J=1,NGP |
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c clsum(J)=0. |
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c enddo |
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c ifirst=.FALSE. |
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c ENDIF |
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C |
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c npas=npas+1 |
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c DO J=1,NGP |
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c clsum(J)=clsum(J)+ABCLW*CLOUDC(J)*QA(J,NL1(J))/5760. |
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c ENDDO |
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C |
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c IF(npas.eq.5760) then |
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c open(73,file='transmoy',form='unformatted') |
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c write(73) clsum |
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c close(73) |
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c ENDIF |
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Cchdbg |
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C |
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C ********************************************************************* |
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C ********************************************************************* |
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ABWLW1=0.7 |
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DO 516 J=1,NGP |
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IF ( NLEVxy(J) .GT. 0 ) THEN |
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TAU(J,NLEVxy(J))=EXP(-(ABSLW+ABWLW*QA(J,NLEVxy(J)))*PSA(J) |
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cchdbg TAU(J,NLEVxy(J))=EXP(-(ABSLW+ABWLW1*QA(J,NLEVxy(J)))*PSA(J) |
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* *DSIG(NLEVxy(J))) |
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ENDIF |
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516 CONTINUE |
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C |
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C--- |
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RETURN |
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END |
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SUBROUTINE RADLW (IMODE,TA,TS,ST4S, |
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* FTOP,FSFC,DFABS,FDOWN) |
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C-- |
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C-- SUBROUTINE RADLW (IMODE,TA,TS,ST4S, |
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C-- * FTOP,FSFC,DFABS) |
| 321 |
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C-- |
| 322 |
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C-- Purpose: Compute the absorption of longwave radiation |
| 323 |
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C-- Input: IMODE = index for operation mode (see below) |
| 324 |
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C-- TA = absolute temperature (3-dim) |
| 325 |
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C-- TS = surface temperature (2-dim) [if IMODE=1] |
| 326 |
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C-- ST4S = surface blackbody emission (2-dim) [if IMODE=2] |
| 327 |
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C-- Output: ST4S = surface blackbody emission (2-dim) [if IMODE=1] |
| 328 |
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C-- FTOP = outgoing flux of lw rad. at the atm. top (2-dim) |
| 329 |
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C-- FSFC = net upw. flux of lw rad. at the surface (2-dim) |
| 330 |
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C-- DFABS = flux of lw rad. absorbed by each atm. layer (3-dim) |
| 331 |
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C-- FDOWN = downward flux of lw rad. at the surface (2-dim) |
| 332 |
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C-- |
| 333 |
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|
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|
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IMPLICIT rEAL*8 (A-H,O-Z) |
| 336 |
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|
| 337 |
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|
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C Resolution parameters |
| 339 |
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C |
| 340 |
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#include "atparam.h" |
| 341 |
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#include "atparam1.h" |
| 342 |
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#include "Lev_def.h" |
| 343 |
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C |
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PARAMETER ( NLON=IX, NLAT=IL, NLEV=KX, NGP=NLON*NLAT ) |
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C |
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C Constants + functions of sigma and latitude |
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C |
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#include "com_physcon.h" |
| 349 |
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C |
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C Radiation parameters |
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C |
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#include "com_radcon.h" |
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C |
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REAL TA(NGP,NLEV), TS(NGP), ST4S(NGP) |
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|
| 356 |
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REAL FTOP(NGP), FSFC(NGP), DFABS(NGP,NLEV) |
| 357 |
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REAL FDOWN(NGP) |
| 358 |
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|
| 359 |
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REAL FLUX(NGP), BRAD(NGP), STCOR(NGP) |
| 360 |
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INTEGER NL1(NGP) |
| 361 |
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C |
| 362 |
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Cchdbg |
| 363 |
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INteger npas |
| 364 |
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SAVE npas |
| 365 |
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LOGICAL Ifirst |
| 366 |
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SAVE IFIRST |
| 367 |
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DATA Ifirst/.TRUE./ |
| 368 |
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REAL FluxMoy(NGP) |
| 369 |
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REAL ST4SMoy(NGP) |
| 370 |
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SAVE FluxMoy, ST4SMoy |
| 371 |
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Cchdbg |
| 372 |
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DO J=1,NGP |
| 373 |
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NL1(J)=NLEVxy(J)-1 |
| 374 |
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ENDDO |
| 375 |
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C |
| 376 |
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DO K=1,NLEV |
| 377 |
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DO J=1,NGP |
| 378 |
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DFABS(J,K)=0. |
| 379 |
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ENDDO |
| 380 |
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ENDDO |
| 381 |
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C |
| 382 |
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C--- 1. Blackbody emission from atmospheric full and half levels. |
| 383 |
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C Temperature is interpolated as a linear function of ln sigma. |
| 384 |
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C At the lower boundary, the emission is linearly extrapolated; |
| 385 |
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C at the upper boundary, the atmosphere is assumed isothermal. |
| 386 |
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C |
| 387 |
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DO 102 J=1,NGP |
| 388 |
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DO 102 K=1,NLEVxy(J) |
| 389 |
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ST4A(J,K,1)=TA(J,K)*TA(J,K) |
| 390 |
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ST4A(J,K,1)=SBC*ST4A(J,K,1)*ST4A(J,K,1) |
| 391 |
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102 CONTINUE |
| 392 |
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C |
| 393 |
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DO 104 J=1,NGP |
| 394 |
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DO 104 K=1,NL1(J) |
| 395 |
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ST4A(J,K,2)=TA(J,K)+WVI(K,2)*(TA(J,K+1)-TA(J,K)) |
| 396 |
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ST4A(J,K,2)=ST4A(J,K,2)*ST4A(J,K,2) |
| 397 |
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ST4A(J,K,2)=SBC*ST4A(J,K,2)*ST4A(J,K,2) |
| 398 |
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104 CONTINUE |
| 399 |
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C |
| 400 |
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DO 106 J=1,NGP |
| 401 |
|
IF ( NLEVxy(J) .GT. 0 ) THEN |
| 402 |
|
ST4A(J,NLEVxy(J),2)=2.*ST4A(J,NLEVxy(J),1)-ST4A(J,NL1(J),2) |
| 403 |
|
ENDIF |
| 404 |
|
106 CONTINUE |
| 405 |
|
C |
| 406 |
|
C--- 2. Empirical stratospheric correction |
| 407 |
|
C |
| 408 |
|
COR0= -13. |
| 409 |
|
COR1= 0. |
| 410 |
|
COR2= 24. |
| 411 |
|
C |
| 412 |
|
J0=0 |
| 413 |
|
DO JL=1,NLAT |
| 414 |
|
CORR=COR0+COR1*FMU(JL,1)+COR2*FMU(JL,2) |
| 415 |
|
DO J=J0+1,J0+NLON |
| 416 |
|
STCOR(J)=CORR |
| 417 |
|
ENDDO |
| 418 |
|
J0=J0+NLON |
| 419 |
|
ENDDO |
| 420 |
|
C |
| 421 |
|
C--- 3. Emission ad absorption of longwave downward flux. |
| 422 |
|
C Downward emission is an average of the emission from the full level |
| 423 |
|
C and the half-level below, weighted according to the transmissivity |
| 424 |
|
C of the layer. |
| 425 |
|
C |
| 426 |
|
C 3.1 Stratosphere |
| 427 |
|
C |
| 428 |
|
DO 312 J=1,NGP |
| 429 |
|
BRAD(J)=ST4A(J,1,2)+TAU(J,1)*(ST4A(J,1,1)-ST4A(J,1,2)) |
| 430 |
|
FLUX(J)=(1.-TAU(J,1))*BRAD(J) |
| 431 |
|
DFABS(J,1)=STCOR(J)-FLUX(J) |
| 432 |
|
312 CONTINUE |
| 433 |
|
C |
| 434 |
|
C 3.2 Troposphere |
| 435 |
|
C |
| 436 |
|
DO 322 J=1,NGP |
| 437 |
|
DO 322 K=2,NLEVxy(J) |
| 438 |
|
DFABS(J,K)=FLUX(J) |
| 439 |
|
BRAD(J)=ST4A(J,K,2)+TAU(J,K)*(ST4A(J,K,1)-ST4A(J,K,2)) |
| 440 |
|
FLUX(J)=TAU(J,K)*(FLUX(J)-BRAD(J))+BRAD(J) |
| 441 |
|
DFABS(J,K)=DFABS(J,K)-FLUX(J) |
| 442 |
|
322 CONTINUE |
| 443 |
|
C |
| 444 |
|
C--- 4. Emission ad absorption of longwave upward flux |
| 445 |
|
C Upward emission is an average of the emission from the full level |
| 446 |
|
C and the half-level above, weighted according to the transmissivity |
| 447 |
|
C of the layer (for the top layer, full-level emission is used). |
| 448 |
|
C Surface lw emission in the IR window goes directly into FTOP. |
| 449 |
|
C |
| 450 |
|
C 4.1 Surface |
| 451 |
|
C |
| 452 |
|
IF (IMODE.LE.1) THEN |
| 453 |
|
DO 412 J=1,NGP |
| 454 |
|
ST4S(J)=TS(J)*TS(J) |
| 455 |
|
ST4S(J)=SBC*ST4S(J)*ST4S(J) |
| 456 |
|
412 CONTINUE |
| 457 |
|
ENDIF |
| 458 |
|
C |
| 459 |
|
C ************************************************************** |
| 460 |
|
Cchdbg |
| 461 |
|
if(ifirst) then |
| 462 |
|
DO J=1,NGP |
| 463 |
|
ST4SMoy(J)=0. |
| 464 |
|
FluxMoy(J)=0. |
| 465 |
|
ENDDO |
| 466 |
|
npas=0. |
| 467 |
|
ifirst=.FALSE. |
| 468 |
|
endif |
| 469 |
|
C |
| 470 |
|
npas=npas+1 |
| 471 |
|
DO 413 J=1,NGP |
| 472 |
|
ST4SMoy(J)=ST4SMoy(J)+ ST4S(J) |
| 473 |
|
FluxMoy(J)=FluxMoy(J)+ Flux(J) |
| 474 |
|
413 CONTINUE |
| 475 |
|
C |
| 476 |
|
if(npas.eq.5760) then |
| 477 |
|
DO J=1,NGP |
| 478 |
|
ST4SMoy(J)=ST4SMoy(J)/float(npas) |
| 479 |
|
FluxMoy(J)=FluxMoy(J)/float(npas) |
| 480 |
|
ENDDO |
| 481 |
|
open(73,file='ST4Smoy',form='unformatted') |
| 482 |
|
write(73) ST4SMoy |
| 483 |
|
close(73) |
| 484 |
|
open(74,file='FluxMoy',form='unformatted') |
| 485 |
|
write(74) FluxMoy |
| 486 |
|
close(74) |
| 487 |
|
ENDIF |
| 488 |
|
Cchdbg |
| 489 |
|
C **************************************************************** |
| 490 |
|
C |
| 491 |
|
C |
| 492 |
|
DO 414 J=1,NGP |
| 493 |
|
FSFC(J)=ST4S(J)-FLUX(J) |
| 494 |
|
FDOWN(J)=FLUX(J) |
| 495 |
|
FTOP(J)=EPSLW*ST4S(J) |
| 496 |
|
FLUX(J)=ST4S(J)-FTOP(J) |
| 497 |
|
414 CONTINUE |
| 498 |
|
C |
| 499 |
|
C 4.2 Troposphere |
| 500 |
|
C |
| 501 |
|
DO 422 J=1,NGP |
| 502 |
|
DO 422 K=NLEVxy(J),2,-1 |
| 503 |
|
DFABS(J,K)=DFABS(J,K)+FLUX(J) |
| 504 |
|
BRAD(J)=ST4A(J,K-1,2)+TAU(J,K)*(ST4A(J,K,1)-ST4A(J,K-1,2)) |
| 505 |
|
FLUX(J)=TAU(J,K)*(FLUX(J)-BRAD(J))+BRAD(J) |
| 506 |
|
DFABS(J,K)=DFABS(J,K)-FLUX(J) |
| 507 |
|
422 CONTINUE |
| 508 |
|
C |
| 509 |
|
C 4.3 Stratosphere |
| 510 |
|
C |
| 511 |
|
DO 432 J=1,NGP |
| 512 |
|
DFABS(J,1)=DFABS(J,1)+FLUX(J) |
| 513 |
|
FLUX(J)=TAU(J,1)*(FLUX(J)-ST4A(J,1,1))+ST4A(J,1,1) |
| 514 |
|
DFABS(J,1)=DFABS(J,1)-FLUX(J) |
| 515 |
|
432 CONTINUE |
| 516 |
|
C |
| 517 |
|
C 4.4 Outgoing longwave radiation |
| 518 |
|
C |
| 519 |
|
DO 442 J=1,NGP |
| 520 |
|
cdj FTOP(J)=FTOP(J)+FLUX(J) |
| 521 |
|
FTOP(J)=FTOP(J)+FLUX(J)-STCOR(J) |
| 522 |
|
442 CONTINUE |
| 523 |
|
cdj |
| 524 |
|
c write(0,*)'position j=20' |
| 525 |
|
c j=20 |
| 526 |
|
c write(0,*)'ftop fsfc ftop-fsfc' |
| 527 |
|
c write(0,*)ftop(j),fsfc(j),ftop(j)-fsfc(j) |
| 528 |
|
c write(0,*) |
| 529 |
|
c write(0,*)'k dfabs' |
| 530 |
|
c do k = 1, nlevxy(j) |
| 531 |
|
c write(0,*)k,dfabs(j,k) |
| 532 |
|
c enddo |
| 533 |
|
c write(0,*)'sum dfabs' |
| 534 |
|
c write(0,*)sum(dfabs(j,:)) |
| 535 |
|
c open(74,file='ftop0',form='unformatted',status='unknown') |
| 536 |
|
c write(74) ftop |
| 537 |
|
c open(75,file='stcor',form='unformatted',status='unknown') |
| 538 |
|
c write(75) stcor |
| 539 |
|
c stop |
| 540 |
|
cdj |
| 541 |
|
C |
| 542 |
|
C--- |
| 543 |
|
RETURN |
| 544 |
|
END |
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