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phy_driver.F
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C $Header: /u/gcmpack/MITgcm/pkg/aim_v23/phy_driver.F,v 1.9 2010/10/26 20:59:53 dfer Exp $
C $Name: $
#include "AIM_OPTIONS.h"
CBOP
C !ROUTINE: PHY_DRIVER
C !INTERFACE:
SUBROUTINE PHY_DRIVER( tYear, usePkgDiag,
I bi, bj, myTime, myIter, myThid )
C !DESCRIPTION: \bv
C------------------------
C-- SUBROUTINE PHYDRIVER (tYear, myTime, bi, bj, myThid )
C-- Purpose: stand-alone driver for physical parametrization routines
C-- Input : TYEAR : fraction of year (0 = 1jan.00, 1 = 31dec.24)
C-- grid-point model fields in common block: PHYGR1
C-- forcing fields in common blocks : LSMASK, FORFIX, FORCIN
C-- Output : Diagnosed upper-air variables in common block: PHYGR2
C-- Diagnosed surface variables in common block: PHYGR3
C-- Physical param. tendencies in common block: PHYTEN
C-- Surface and upper boundary fluxes in common block: FLUXES
C-------
C Note: tendencies are not /dpFac here but later in AIM_AIM2DYN
C-------
C from SPEDDY code: (part of original code left with c_FM)
C * S/R PHYPAR : except interp. dynamical Var. from Spectral of grid point
C here dynamical var. are loaded within S/R AIM_DYN2AIM.
C * S/R FORDATE: only the CALL SOL_OZ (done once / day in SPEEDY)
C------------------------
C \ev
C !USES:
IMPLICIT NONE
C == Global variables ===
C-- size for MITgcm & Physics package :
#include "AIM_SIZE.h"
#include "EEPARAMS.h"
C-- Physics package
#include "AIM_PARAMS.h"
#include "AIM_GRID.h"
C Constants + functions of sigma and latitude
#include "com_physcon.h"
C Model variables, tendencies and fluxes on gaussian grid
#include "com_physvar.h"
C Surface forcing fields (time-inv. or functions of seasonal cycle)
#include "com_forcing.h"
C Constants for forcing fields:
#include "com_forcon.h"
C Radiation scheme variables
#include "com_radvar.h"
C Radiation constants
#include "com_radcon.h"
C Logical flags
c_FM include "com_lflags.h"
C !INPUT/OUTPUT PARAMETERS:
C == Routine arguments ==
C tYear :: Fraction into year
C usePkgDiag :: logical flag, true if using Diagnostics PKG
C bi, bj :: Tile index
C myTime :: Current time of simulation ( s )
C myIter :: Current iteration number in simulation
C myThid :: Number of this instance of the routine
_RL tYear
LOGICAL usePkgDiag
INTEGER bi,bj
_RL myTime
INTEGER myIter, myThid
CEOP
#ifdef ALLOW_AIM
C !FUNCTIONS:
C !LOCAL VARIABLES:
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
C-- Local Variables originally (Speedy) in common bloc (com_physvar.h):
C TG1 :: absolute temperature
C QG1 :: specific humidity (g/kg)
C VsurfSq :: Square of surface wind speed (grid position = as T,Q)
C SE :: dry static energy <- replaced by Pot.Temp.
C QSAT :: saturation specific humidity (g/kg)
C PSG :: surface pressure (normalized)
_RL TG1 (NGP,NLEV)
_RL QG1 (NGP,NLEV)
_RL VsurfSq(NGP)
_RL SE (NGP,NLEV)
_RL QSAT (NGP,NLEV)
_RL PSG (NGP)
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
C-- Local variables:
C kGrd :: Ground level index (2-dim)
C dpFac :: cell delta_P fraction (3-dim)
C dTskin :: temp. correction for daily-cycle heating [K]
C T1s :: near-surface air temperature (from Pot.Temp)
C DENVV :: surface flux (sens,lat.) coeff. (=Rho*|V|) [kg/m2/s]
C Shf0 :: sensible heat flux over freezing surf.
C dShf :: sensible heat flux derivative relative to surf. temp
C Evp0 :: evaporation computed over freezing surface (Ts=0.oC)
C dEvp :: evaporation derivative relative to surf. temp
C Slr0 :: upward long wave radiation over freezing surf.
C dSlr :: upward long wave rad. derivative relative to surf. temp
C sFlx :: net surface flux (+=down) function of surf. temp Ts:
C 0: Flux(Ts=0.oC) ; 1: Flux(Ts^n) ; 2: d.Flux/d.Ts(Ts^n)
LOGICAL LRADSW
INTEGER ICLTOP(NGP)
INTEGER kGround(NGP)
_RL dpFac(NGP,NLEV)
c_FM REAL RPS(NGP), ST4S(NGP)
_RL ST4S(NGP)
_RL PSG_1(NGP), RPS_1
_RL dTskin(NGP), T1s(NGP), DENVV(NGP)
_RL Shf0(NGP), dShf(NGP), Evp0(NGP), dEvp(NGP)
_RL Slr0(NGP), dSlr(NGP), sFlx(NGP,0:2)
_RL UPSWG(NGP)
INTEGER J, K
#ifdef ALLOW_CLR_SKY_DIAG
_RL dummyR(NGP)
INTEGER dummyI(NGP)
#endif
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
C-- 1. Compute grid-point fields
C- 1.1 Convert model spectral variables to grid-point variables
CALL AIM_DYN2AIM(
O TG1, QG1, SE, VsurfSq, PSG, dpFac, kGround,
I bi, bj, myTime, myIter, myThid )
C- 1.2 Compute thermodynamic variables
C- 1.2.a Surface pressure (ps), 1/ps and surface temperature
RPS_1 = 1. _d 0
DO J=1,NGP
PSG_1(J)=1. _d 0
c_FM PSG(J)=EXP(PSLG1(J))
c_FM RPS(J)=1./PSG(J)
ENDDO
C 1.2.b Dry static energy
C <= replaced by Pot.Temp in aim_dyn2aim
c DO K=1,NLEV
c DO J=1,NGP
c_FM SE(J,K)=CP*TG1(J,K)+PHIG1(J,K)
c ENDDO
c ENDDO
C 1.2.c Relative humidity and saturation spec. humidity
DO K=1,NLEV
c_FM CALL SHTORH (1,NGP,TG1(1,K),PSG,SIG(K),QG1(1,K),
c_FM & RH(1,K),QSAT(1,K))
CALL SHTORH (1,NGP,TG1(1,K),PSG_1,SIG(K),QG1(1,K),
O RH(1,K,myThid),QSAT(1,K),
I myThid)
ENDDO
C-- 2. Precipitation
C 2.1 Deep convection
c_FM CALL CONVMF (PSG,SE,QG1,QSAT,
c_FM & ICLTOP,CBMF,PRECNV,TT_CNV,QT_CNV)
CALL CONVMF (PSG,dpFac,SE,QG1,QSAT,
O ICLTOP,CBMF(1,myThid),PRECNV(1,myThid),
O TT_CNV(1,1,myThid),QT_CNV(1,1,myThid),
I kGround,bi,bj,myThid)
DO K=2,NLEV
DO J=1,NGP
TT_CNV(J,K,myThid)=TT_CNV(J,K,myThid)*RPS_1*GRDSCP(K)
QT_CNV(J,K,myThid)=QT_CNV(J,K,myThid)*RPS_1*GRDSIG(K)
ENDDO
ENDDO
C 2.2 Large-scale condensation
c_FM CALL LSCOND (PSG,QG1,QSAT,
c_FM & PRECLS,TT_LSC,QT_LSC)
CALL LSCOND (PSG,dpFac,QG1,QSAT,
O PRECLS(1,myThid),TT_LSC(1,1,myThid),
O QT_LSC(1,1,myThid),
I kGround,bi,bj,myThid)
IF ( aim_energPrecip ) THEN
C 2.3 Snow Precipitation (update TT_CNV & TT_LSC)
CALL SNOW_PRECIP (
I PSG, dpFac, SE, ICLTOP,
I PRECNV(1,myThid), QT_CNV(1,1,myThid),
I PRECLS(1,myThid), QT_LSC(1,1,myThid),
U TT_CNV(1,1,myThid), TT_LSC(1,1,myThid),
O EnPrec(1,myThid),
I kGround,bi,bj,myThid)
ELSE
DO J=1,NGP
EnPrec(J,myThid) = 0. _d 0
ENDDO
ENDIF
C-- 3. Radiation (shortwave and longwave) and surface fluxes
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
C --> from FORDATE (in SPEEDY) :
C 3.0 Compute Incomming shortwave rad. (from FORDATE in SPEEDY)
c_FM CALL SOL_OZ (SOLC,TYEAR)
CALL SOL_OZ (SOLC,tYear, snLat(1,myThid), csLat(1,myThid),
O FSOL, OZONE, OZUPP, ZENIT, STRATZ,
I bi,bj,myThid)
C <-- from FORDATE (in SPEEDY).
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
C 3.1 Compute shortwave tendencies and initialize lw transmissivity
C The sw radiation may be called at selected time steps
LRADSW = .TRUE.
IF (LRADSW) THEN
c_FM CALL RADSW (PSG,QG1,RH,ALB1,
c_FM & ICLTOP,CLOUDC,TSR,SSR,TT_RSW)
ICLTOP(1) = 1
CALL RADSW (PSG,dpFac,QG1,RH(1,1,myThid),ALB1(1,0,myThid),
I FSOL, OZONE, OZUPP, ZENIT, STRATZ,
O TAU2, STRATC,
O ICLTOP,CLOUDC(1,myThid),
O TSR(1,myThid),SSR(1,0,myThid),
O UPSWG,TT_RSW(1,1,myThid),
I kGround,bi,bj,myThid)
DO J=1,NGP
CLTOP(J,myThid)=SIGH(ICLTOP(J)-1)*PSG_1(J)
ENDDO
DO K=1,NLEV
DO J=1,NGP
TT_RSW(J,K,myThid)=TT_RSW(J,K,myThid)*RPS_1*GRDSCP(K)
ENDDO
ENDDO
#ifdef ALLOW_DIAGNOSTICS
IF ( usePkgDiag ) THEN
CALL DIAGNOSTICS_FILL( UPSWG,
& 'UPSWG ', 1, 1 , 3,bi,bj, myThid )
ENDIF
#endif
ENDIF
C 3.2 Compute downward longwave fluxes
c_FM CALL RADLW (-1,TG1,TS,ST4S,
c_FM & OLR,SLR,TT_RLW)
CALL RADLW (-1,TG1,TS(1,myThid),ST4S,
& OZUPP, STRATC, TAU2, FLUX, ST4A,
O OLR(1,myThid),SLR(1,0,myThid),TT_RLW(1,1,myThid),
I kGround,bi,bj,myThid)
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
C 3.3. Compute surface fluxes and land skin temperature
c_FM CALL SUFLUX (PSG,UG1,VG1,TG1,QG1,RH,PHIG1,
c_FM & PHIS0,FMASK1,STL1,SST1,SOILW1,SSR,SLR,
c_FM & USTR,VSTR,SHF,EVAP,ST4S,
c_FM & TS,TSKIN,U0,V0,T0,Q0)
CALL SUFLUX_PREP(
I PSG, TG1, QG1, RH(1,1,myThid), SE, VsurfSq,
I WVSurf(1,myThid),csLat(1,myThid),fOrogr(1,myThid),
I FMASK1(1,1,myThid),STL1(1,myThid),SST1(1,myThid),
I sti1(1,myThid), SSR(1,0,myThid),
O SPEED0(1,myThid),DRAG(1,0,myThid),DENVV,
O dTskin,T1s,T0(1,myThid),Q0(1,myThid),
I kGround,bi,bj,myThid)
CALL SUFLUX_LAND (
I PSG, FMASK1(1,1,myThid), EMISFC,
I STL1(1,myThid), dTskin,
I SOILW1(1,myThid), SSR(1,1,myThid), SLR(1,0,myThid),
I T1s, T0(1,myThid), Q0(1,myThid), DENVV,
O SHF(1,1,myThid), EVAP(1,1,myThid), SLR(1,1,myThid),
O Shf0, dShf, Evp0, dEvp, Slr0, dSlr, sFlx,
O TS(1,myThid), TSKIN(1,myThid),
I bi,bj,myThid)
#ifdef ALLOW_LAND
CALL AIM_LAND_IMPL(
I FMASK1(1,1,myThid), dTskin,
I Shf0, dShf, Evp0, dEvp, Slr0, dSlr,
U sFlx, STL1(1,myThid),
U SHF(1,1,myThid), EVAP(1,1,myThid), SLR(1,1,myThid),
O dTsurf(1,1,myThid),
I bi, bj, myTime, myIter, myThid)
#endif /* ALLOW_LAND */
CALL SUFLUX_OCEAN(
I PSG, FMASK1(1,2,myThid),
I SST1(1,myThid),
I SSR(1,2,myThid), SLR(1,0,myThid),
O T1s, T0(1,myThid), Q0(1,myThid), DENVV,
O SHF(1,2,myThid), EVAP(1,2,myThid), SLR(1,2,myThid),
I bi,bj,myThid)
IF ( aim_splitSIOsFx ) THEN
CALL SUFLUX_SICE (
I PSG, FMASK1(1,3,myThid), EMISFC,
I STI1(1,myThid), dTskin,
I SSR(1,3,myThid), SLR(1,0,myThid),
I T1s, T0(1,myThid), Q0(1,myThid), DENVV,
O SHF(1,3,myThid), EVAP(1,3,myThid), SLR(1,3,myThid),
O Shf0, dShf, Evp0, dEvp, Slr0, dSlr, sFlx,
O TS(1,myThid), TSKIN(1,myThid),
I bi,bj,myThid)
#ifdef ALLOW_THSICE
CALL AIM_SICE_IMPL(
I FMASK1(1,3,myThid), SSR(1,3,myThid), sFlx,
I Shf0, dShf, Evp0, dEvp, Slr0, dSlr,
U STI1(1,myThid),
U SHF(1,3,myThid), EVAP(1,3,myThid), SLR(1,3,myThid),
O dTsurf(1,3,myThid),
I bi, bj, myTime, myIter, myThid)
#endif /* ALLOW_THSICE */
ELSE
DO J=1,NGP
SHF (J,3,myThid) = 0. _d 0
EVAP(J,3,myThid) = 0. _d 0
SLR (J,3,myThid) = 0. _d 0
ENDDO
ENDIF
CALL SUFLUX_POST(
I FMASK1(1,1,myThid), EMISFC,
I STL1(1,myThid), SST1(1,myThid), sti1(1,myThid),
I dTskin, SLR(1,0,myThid),
I T0(1,myThid), Q0(1,myThid), DENVV,
U DRAG(1,0,myThid), SHF(1,0,myThid),
U EVAP(1,0,myThid), SLR(1,1,myThid),
O ST4S, TS(1,myThid), TSKIN(1,myThid),
I bi,bj,myThid)
#ifdef ALLOW_DIAGNOSTICS
IF ( usePkgDiag ) THEN
CALL DIAGNOSTICS_FILL( SLR(1,0,myThid),
& 'DWNLWG ', 1, 1 , 3,bi,bj, myThid )
ENDIF
#endif
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
C 3.4 Compute upward longwave fluxes, convert them to tendencies
C and add shortwave tendencies
c_FM CALL RADLW (1,TG1,TS,ST4S,
c_FM & OLR,SLR,TT_RLW)
CALL RADLW (1,TG1,TS(1,myThid),ST4S,
& OZUPP, STRATC, TAU2, FLUX, ST4A,
O OLR(1,myThid),SLR(1,0,myThid),TT_RLW(1,1,myThid),
I kGround,bi,bj,myThid)
DO K=1,NLEV
DO J=1,NGP
TT_RLW(J,K,myThid)=TT_RLW(J,K,myThid)*RPS_1*GRDSCP(K)
c_FM TTEND (J,K)=TTEND(J,K)+TT_RSW(J,K)+TT_RLW(J,K)
ENDDO
ENDDO
#ifdef ALLOW_CLR_SKY_DIAG
C 3.5 Compute clear-sky radiation (for diagnostics only)
IF ( aim_clrSkyDiag ) THEN
C 3.5.1 Compute shortwave tendencies
dummyI(1) = -1
CALL RADSW (PSG,dpFac,QG1,RH(1,1,myThid),ALB1(1,0,myThid),
I FSOL, OZONE, OZUPP, ZENIT, STRATZ,
O TAU2, STRATC,
O dummyI, dummyR,
O TSWclr(1,myThid), SSWclr(1,myThid), UPSWG, TT_SWclr(1,1,myThid),
I kGround,bi,bj,myThid)
#ifdef ALLOW_DIAGNOSTICS
IF ( usePkgDiag ) THEN
CALL DIAGNOSTICS_FILL( UPSWG,
& 'UPSWGclr', 1, 1 , 3,bi,bj, myThid )
ENDIF
#endif
C 3.5.2 Compute downward longwave fluxes
CALL RADLW (-1,TG1,TS(1,myThid),ST4S,
& OZUPP, STRATC, TAU2, FLUX, ST4A,
O OLWclr(1,myThid), SLWclr(1,myThid), TT_LWclr(1,1,myThid),
I kGround,bi,bj,myThid)
C 3.5.3 Compute upward longwave fluxes, convert them to tendencies
CALL RADLW (1,TG1,TS(1,myThid),ST4S,
& OZUPP, STRATC, TAU2, FLUX, ST4A,
O OLWclr(1,myThid), SLWclr(1,myThid), TT_LWclr(1,1,myThid),
I kGround,bi,bj,myThid)
DO K=1,NLEV
DO J=1,NGP
TT_SWclr(J,K,myThid)=TT_SWclr(J,K,myThid)*RPS_1*GRDSCP(K)
TT_LWclr(J,K,myThid)=TT_LWclr(J,K,myThid)*RPS_1*GRDSCP(K)
ENDDO
ENDDO
ENDIF
#endif /* ALLOW_CLR_SKY_DIAG */
C-- 4. PBL interactions with lower troposphere
C 4.1 Vertical diffusion and shallow convection
c_FM CALL VDIFSC (UG1,VG1,SE,RH,QG1,QSAT,PHIG1,
c_FM & UT_PBL,VT_PBL,TT_PBL,QT_PBL)
CALL VDIFSC (dpFac, SE, RH(1,1,myThid), QG1, QSAT,
O TT_PBL(1,1,myThid),QT_PBL(1,1,myThid),
I kGround,bi,bj,myThid)
C 4.2 Add tendencies due to surface fluxes
DO J=1,NGP
c_FM UT_PBL(J,NLEV)=UT_PBL(J,NLEV)+USTR(J,3)*RPS(J)*GRDSIG(NLEV)
c_FM VT_PBL(J,NLEV)=VT_PBL(J,NLEV)+VSTR(J,3)*RPS(J)*GRDSIG(NLEV)
c_FM TT_PBL(J,NLEV)=TT_PBL(J,NLEV)+ SHF(J,3)*RPS(J)*GRDSCP(NLEV)
c_FM QT_PBL(J,NLEV)=QT_PBL(J,NLEV)+EVAP(J,3)*RPS(J)*GRDSIG(NLEV)
K = kGround(J)
IF ( K.GT.0 ) THEN
TT_PBL(J,K,myThid) = TT_PBL(J,K,myThid)
& + SHF(J,0,myThid) *RPS_1*GRDSCP(K)
QT_PBL(J,K,myThid) = QT_PBL(J,K,myThid)
& + EVAP(J,0,myThid)*RPS_1*GRDSIG(K)
ENDIF
ENDDO
c_FM DO K=1,NLEV
c_FM DO J=1,NGP
c_FM UTEND(J,K)=UTEND(J,K)+UT_PBL(J,K)
c_FM VTEND(J,K)=VTEND(J,K)+VT_PBL(J,K)
c_FM TTEND(J,K)=TTEND(J,K)+TT_PBL(J,K)
c_FM QTEND(J,K)=QTEND(J,K)+QT_PBL(J,K)
c_FM ENDDO
c_FM ENDDO
#endif /* ALLOW_AIM */
RETURN
END