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C $Header: /u/gcmpack/MITgcm/pkg/aim/phy_driver.F,v 1.4 2002/09/27 20:05:11 jmc Exp $ |
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C $Name: $ |
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|
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#include "AIM_OPTIONS.h" |
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|
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SUBROUTINE PDRIVER (TYEAR, myThid) |
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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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|
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IMPLICIT NONE |
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|
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C Resolution parameters |
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|
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C-- size for MITgcm & Physics package : |
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#include "AIM_SIZE.h" |
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|
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#include "EEPARAMS.h" |
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|
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#include "AIM_GRID.h" |
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|
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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 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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|
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C-- Routine arguments: |
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_RL TYEAR |
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INTEGER myThid |
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|
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#ifdef ALLOW_AIM |
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|
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C-- Local variables: |
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INTEGER IDEPTH(NGP) |
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_RL RPS(NGP), ALB1(NGP), FSOL1(NGP), OZONE1(NGP) |
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|
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_RL TAURAD(NGP,NLEV), ST4ARAD(NGP,NLEV,2) |
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CcnhDebugStarts |
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c REAL AUX(NGP) |
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_RL Phymask(NGP,NLEV) |
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c real xminim |
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_RL UT_VDI(NGP,NLEV), VT_VDI(NGP,NLEV), TT_VDI(NGP,NLEV) |
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_RL QT_VDI(NGP,NLEV) |
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CcnhDebugEnds |
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INTEGER J, K |
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|
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C- jmc: declare all local variables: |
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_RL DALB, RSD |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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C-- 1. Compute surface variables |
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|
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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,myThid)=EXP(PSLG1(J,myThid)) |
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RPS(J)=1./PSG(J,myThid) |
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TS(J,myThid) =SST1(J,myThid)+ |
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& FMASK1(J,myThid)*(STL1(J,myThid)-SST1(J,myThid)) |
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ENDDO |
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|
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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,myThid) |
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ENDDO |
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CmoltEnd |
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|
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C-- 2. Compute thermodynamic variables |
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|
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C 2.1 Dry static energy |
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|
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DO K=1,NLEV |
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DO J=1,NGP |
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SE(J,K,myThid)=CP*TG1(J,K,myThid)+PHIG1(J,K,myThid) |
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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,myThid),PSG(1,myThid), |
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& SIG(K),QG1(1,K,myThid), |
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* RH(1,K,myThid),QSAT(1,K,myThid), |
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I myThid) |
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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,myThid).ne.0.) THEN |
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phymask(J,K)=1. |
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ENDIF |
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QSAT(J,K,myThid)=QSAT(J,K,myThid)*Phymask(J,K) |
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QG1(J,K,myThid)=QG1(J,K,myThid)*Phymask(J,K) |
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RH(J,K,myThid)=RH(J,K,myThid)*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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|
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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(1,myThid),TG1(1,1,myThid), |
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& QG1(1,1,myThid),QSAT(1,1,myThid), |
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* IDEPTH,CBMF(1,myThid),PRECNV(1,myThid), |
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& TT_CNV(1,1,myThid),QT_CNV(1,1,myThid), |
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I myThid) |
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|
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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,myThid)=TT_CNV(J,K,myThid)*RPS(J)*GRDSCP(K) |
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QT_CNV(J,K,myThid)=QT_CNV(J,K,myThid)*RPS(J)*GRDSIG(K) |
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ENDDO |
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ENDDO |
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|
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C 3.2 Large-scale condensation |
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|
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CALL LSCOND (PSG(1,myThid),QG1(1,1,myThid),QSAT(1,1,myThid), |
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* PRECLS(1,myThid),TT_LSC(1,1,myThid), |
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& QT_LSC(1,1,myThid), |
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I myThid) |
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|
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C |
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C-- 4. Radiation (shortwave and longwave) |
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|
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C 4.1 Compute climatological forcing |
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|
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CALL SOL_OZ (SOLC,TYEAR,FSOL1,OZONE1, |
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I myThid) |
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|
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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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|
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CALL RADSW (PSG(1,myThid),QG1(1,1,myThid),RH(1,1,myThid), |
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* FSOL1,OZONE1,ALB1,TAURAD, |
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* CLOUDC(1,myThid),TSR(1,myThid),SSR(1,myThid), |
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& TT_RSW(1,1,myThid), |
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I myThid) |
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|
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C 4.3 Compute longwave fluxes |
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|
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CALL RADLW (1,TG1(1,1,myThid),TS(1,myThid),ST4S(1,myThid), |
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& TAURAD, ST4ARAD, |
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* OLR(1,myThid),SLR(1,myThid),TT_RLW(1,1,myThid), |
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& SLR_DOWN(1,myThid), |
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I myThid) |
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|
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DO K=1,NLEV |
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DO J=1,NGP |
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TT_RSW(J,K,myThid)=TT_RSW(J,K,myThid)*RPS(J)*GRDSCP(K) |
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TT_RLW(J,K,myThid)=TT_RLW(J,K,myThid)*RPS(J)*GRDSCP(K) |
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ENDDO |
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ENDDO |
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|
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C |
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C-- 5. PBL interactions with lower troposphere and surface |
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|
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C 5.1. Surface fluxes (from climatological surface temperature) |
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|
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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(1,myThid), |
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& UG1(1,1,myThid),VG1(1,1,myThid), |
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& TG1(1,1,myThid),QG1(1,1,myThid), |
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& RH(1,1,myThid),QSAT(1,1,myThid), |
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& VsurfSq(1,myThid),PHIG1(1,1,myThid), |
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& PHI0(1,myThid),FMASK1(1,myThid), |
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& STL1(1,myThid),SST1(1,myThid),SOILQ1(1,myThid), |
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& SSR(1,myThid),SLR(1,myThid), |
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& DRAG(1,myThid), |
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& USTR(1,1,myThid),VSTR(1,1,myThid),SHF(1,1,myThid), |
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& EVAP(1,1,myThid),T0(1,1,myThid),Q0(1,myThid), |
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& QSAT0(1,1,myThid),SPEED0(1,myThid), |
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I myThid) |
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|
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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,myThid)=0. |
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VT_PBL(J,K,myThid)=0. |
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TT_PBL(J,K,myThid)=0. |
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QT_PBL(J,K,myThid)=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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|
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DO J=1,NGP |
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IF ( NLEVxy(J,myThid) .GT. 0 ) THEN |
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UT_PBL(J,NLEVxy(J,myThid),myThid)= |
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& UT_PBL(J,NLEVxy(J,myThid),myThid)+ USTR(J,3,myThid) |
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VT_PBL(J,NLEVxy(J,myThid),myThid)= |
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& VT_PBL(J,NLEVxy(J,myThid),myThid)+ VSTR(J,3,myThid) |
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TT_PBL(J,NLEVxy(J,myThid),myThid)= |
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& TT_PBL(J,NLEVxy(J,myThid),myThid)+ SHF(J,3,myThid) |
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QT_PBL(J,NLEVxy(J,myThid),myThid)= |
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& QT_PBL(J,NLEVxy(J,myThid),myThid)+ EVAP(J,3,myThid) |
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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,myThid) .GT. 0 ) THEN |
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DO K=NLEVxy(J,myThid)-1,NLEVxy(J,myThid) |
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UT_PBL(J,K,myThid)=UT_PBL(J,K,myThid)*GRDSIG(K) |
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VT_PBL(J,K,myThid)=VT_PBL(J,K,myThid)*GRDSIG(K) |
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TT_PBL(J,K,myThid)=TT_PBL(J,K,myThid)*GRDSCP(K) |
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QT_PBL(J,K,myThid)=QT_PBL(J,K,myThid)*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(1,1,myThid),VG1(1,1,myThid), |
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& TG1(1,1,myThid),RH(1,1,myThid), |
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& QG1(1,1,myThid), QSAT(1,1,myThid), |
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* UT_VDI,VT_VDI,TT_VDI,QT_VDI, |
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I myThid) |
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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,myThid)=UT_PBL(J,K,myThid)+ UT_VDI(J,K) |
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VT_PBL(J,K,myThid)=VT_PBL(J,K,myThid)+ VT_VDI(J,K) |
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TT_PBL(J,K,myThid)=TT_PBL(J,K,myThid)+ TT_VDI(J,K) |
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QT_PBL(J,K,myThid)=QT_PBL(J,K,myThid)+ QT_VDI(J,K) |
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ENDDO |
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ENDDO |
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C |
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|
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CdbgC-- |
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|
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#endif /* ALLOW_AIM */ |
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|
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RETURN |
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END |
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