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adcroft |
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C $Header: /u/gcmpack/models/MITgcmUV/pkg/aim/Attic/phy_driver.F,v 1.1.2.2 2001/01/26 17:54:25 adcroft Exp $ |
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C $Name: branch-atmos-merge-freeze $ |
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SUBROUTINE PDRIVER (TYEAR) |
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C-- |
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C-- SUBROUTINE PDRIVER (TYEAR) |
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C-- |
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C-- Purpose: stand-alone driver for physical parametrization routines |
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C-- Input : TYEAR : fraction of year (0 = 1jan.00, 1 = 31dec.24) |
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C-- grid-point model fields in common block: PHYGR1 |
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C-- forcing fields in common blocks : LSMASK, FORFIX, FORCIN |
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C-- Output : Diagnosed upper-air variables in common block: PHYGR2 |
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C-- Diagnosed surface variables in common block: PHYGR3 |
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C-- Physical param. tendencies in common block: PHYTEN |
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C-- Surface and upper boundary fluxes in common block: FLUXES |
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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 "Lev_def.h" |
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#include "com_physcon.h" |
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C |
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C Model variables, tendencies and fluxes on gaussian grid |
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C |
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#include "com_physvar.h" |
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C |
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C Surface forcing fields (time-inv. or functions of seasonal cycle) |
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C |
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#include "com_forcing1.h" |
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#include "com_forcon.h" |
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#include "com_sflcon.h" |
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REAL TYEAR |
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INTEGER IDEPTH(NGP) |
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REAL RPS(NGP), ALB1(NGP), FSOL1(NGP), OZONE1(NGP) |
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CcnhDebugStarts |
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LOGICAL CALL1 |
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DATA CALL1 /.TRUE./ |
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SAVE CALL1 |
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REAL AUX(NGP) |
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REAL Phymask(NGP,NLEV) |
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real xminim |
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REAL UT_VDI(NGP,NLEV), VT_VDI(NGP,NLEV), TT_VDI(NGP,NLEV) |
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REAL QT_VDI(NGP,NLEV) |
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CcnhDebugEnds |
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C-- 1. Compute surface variables |
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C 1.1 Surface pressure (ps), 1/ps and surface temperature |
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C |
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DO J=1,NGP |
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PSG(J)=EXP(PSLG1(J)) |
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RPS(J)=1./PSG(J) |
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TS(J) =SST1(J)+FMASK1(J)*(STL1(J)-SST1(J)) |
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ENDDO |
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C 1.2 Surface albedo: |
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C defined as a weighed average of land and ocean albedos, where |
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C land albedo depends linearly on snow depth (up to the SDALB |
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C threshold) and sea albedo depends linearly on sea-ice fraction. |
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C |
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DALB=ALBICE-ALBSEA |
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RSD=1./SDALB |
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C |
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CmoltBegin |
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DO J=1,NGP |
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ALB1(J)=ALB0(J) |
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ENDDO |
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CmoltEnd |
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C-- 2. Compute thermodynamic variables |
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C 2.1 Dry static energy |
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DO K=1,NLEV |
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DO J=1,NGP |
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SE(J,K)=CP*TG1(J,K)+PHIG1(J,K) |
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ENDDO |
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ENDDO |
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C |
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C 2.2 Relative humidity and saturation spec. humidity |
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C |
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DO K=1,NLEV |
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CALL SHTORH (1,NGP,TG1(1,K),PSG,SIG(K),QG1(1,K), |
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* RH(1,K),QSAT(1,K)) |
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ENDDO |
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C |
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DO K=1,NLEV |
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DO J=1,NGP |
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phymask(J,K)=0. |
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IF (Tg1(J,K).ne.0.) THEN |
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phymask(J,K)=1. |
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ENDIF |
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QSAT(J,K)=QSAT(J,K)*Phymask(J,K) |
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QG1(J,K)=QG1(J,K)*Phymask(J,K) |
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RH(J,K)=RH(J,K)*Phymask(J,K) |
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ENDDO |
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ENDDO |
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cdbgch |
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C |
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C-- 3. Precipitation |
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C 3.1 Deep convection |
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C |
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cch CALL CONVMF (PSG,SE,QG1,QSAT, |
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CALL CONVMF (PSG,TG1,QG1,QSAT, |
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* IDEPTH,CBMF,PRECNV,TT_CNV,QT_CNV) |
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C |
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DO K=2,NLEV |
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DO J=1,NGP |
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TT_CNV(J,K)=TT_CNV(J,K)*RPS(J)*GRDSCP(K) |
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QT_CNV(J,K)=QT_CNV(J,K)*RPS(J)*GRDSIG(K) |
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ENDDO |
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ENDDO |
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C 3.2 Large-scale condensation |
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CALL LSCOND (PSG,QG1,QSAT, |
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* PRECLS,TT_LSC,QT_LSC) |
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C |
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C-- 4. Radiation (shortwave and longwave) |
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C 4.1 Compute climatological forcing |
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CALL SOL_OZ (SOLC,TYEAR,FSOL1,OZONE1) |
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C 4.2 Compute shortwave tendencies and initialize lw transmissivity |
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C (The sw radiation may be called at selected time steps) |
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CALL RADSW (PSG,QG1,RH, |
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* FSOL1,OZONE1,ALB1, |
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* CLOUDC,TSR,SSR,TT_RSW) |
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C 4.3 Compute longwave fluxes |
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CALL RADLW (1,TG1,TS,ST4S, |
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* OLR,SLR,TT_RLW,SLR_DOWN) |
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DO K=1,NLEV |
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DO J=1,NGP |
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TT_RSW(J,K)=TT_RSW(J,K)*RPS(J)*GRDSCP(K) |
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TT_RLW(J,K)=TT_RLW(J,K)*RPS(J)*GRDSCP(K) |
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ENDDO |
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ENDDO |
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C |
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C-- 5. PBL interactions with lower troposphere and surface |
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C 5.1. Surface fluxes (from climatological surface temperature) |
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cch Attention the pressure used is a the last T level and |
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Cch not at the last W level |
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C -------------------------------- |
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CALL SUFLUX (PNLEVW,UG1,VG1,TG1,QG1,RH,QSAT,PHIG1, |
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* PHI0,FMASK1,STL1,SST1,SOILQ1,SSR,SLR, |
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* USTR,VSTR,SHF,EVAP,T0,Q0,QSAT0,SPEED0) |
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C |
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C remove when vdifsc is implemented |
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DO K=1,NLEV |
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DO J=1,NGP |
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UT_PBL(J,K)=0. |
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VT_PBL(J,K)=0. |
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TT_PBL(J,K)=0. |
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QT_PBL(J,K)=0. |
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ENDDO |
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ENDDO |
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c |
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C |
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c |
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C 5.3 Add surface fluxes and convert fluxes to tendencies |
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DO J=1,NGP |
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IF ( NLEVxy(J) .GT. 0 ) THEN |
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UT_PBL(J,NLEVxy(J))=UT_PBL(J,NLEVxy(J))+ USTR(J,3) |
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VT_PBL(J,NLEVxy(J))=VT_PBL(J,NLEVxy(J))+ VSTR(J,3) |
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TT_PBL(J,NLEVxy(J))=TT_PBL(J,NLEVxy(J))+ SHF(J,3) |
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QT_PBL(J,NLEVxy(J))=QT_PBL(J,NLEVxy(J))+ EVAP(J,3) |
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ENDIF |
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ENDDO |
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C |
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Cdbgch |
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DO J=1,NGP |
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IF ( NLEVxy(J) .GT. 0 ) THEN |
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DO K=NLEVxy(J)-1,NLEVxy(J) |
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UT_PBL(J,K)=UT_PBL(J,K)*GRDSIG(K) |
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VT_PBL(J,K)=VT_PBL(J,K)*GRDSIG(K) |
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TT_PBL(J,K)=TT_PBL(J,K)*GRDSCP(K) |
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QT_PBL(J,K)=QT_PBL(J,K)*GRDSIG(K) |
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ENDDO |
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ENDIF |
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ENDDO |
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C |
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C 5.2 Vertical diffusion and shallow convection (not yet implemented) |
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C |
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CALL VDIFSC (UG1,VG1,TG1,RH, QG1, QSAT, |
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* UT_VDI,VT_VDI,TT_VDI,QT_VDI) |
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C |
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DO K=1,NLEV |
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DO J=1,NGP |
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UT_PBL(J,K)=UT_PBL(J,K)+ UT_VDI(J,K) |
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VT_PBL(J,K)=VT_PBL(J,K)+ VT_VDI(J,K) |
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TT_PBL(J,K)=TT_PBL(J,K)+ TT_VDI(J,K) |
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QT_PBL(J,K)=QT_PBL(J,K)+ QT_VDI(J,K) |
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ENDDO |
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ENDDO |
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C |
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CdbgC-- |
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RETURN |
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END |
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