C $Header: /u/gcmpack/MITgcm/pkg/thsice/thsice_step_temp.F,v 1.6 2007/04/19 13:22:36 heimbach Exp $
C $Name: $
#include "THSICE_OPTIONS.h"
CBOP
C !ROUTINE: THSICE_STEP_TEMP
C !INTERFACE:
SUBROUTINE THSICE_STEP_TEMP(
I bi, bj, iMin, iMax, jMin, jMax,
I myTime, myIter, myThid )
C !DESCRIPTION: \bv
C *==========================================================*
C | S/R THSICE_STEP_TEMP
C | o Step Forward Surface and SeaIce Temperature.
C *==========================================================*
C \ev
C !USES:
IMPLICIT NONE
C === Global variables ===
#include "SIZE.h"
#include "EEPARAMS.h"
#include "PARAMS.h"
#include "FFIELDS.h"
#include "THSICE_SIZE.h"
#include "THSICE_PARAMS.h"
#include "THSICE_VARS.h"
#include "THSICE_TAVE.h"
#ifdef ALLOW_AUTODIFF_TAMC
# include "tamc.h"
# include "tamc_keys.h"
#endif
INTEGER siLo, siHi, sjLo, sjHi
PARAMETER ( siLo = 1-OLx , siHi = sNx+OLx )
PARAMETER ( sjLo = 1-OLy , sjHi = sNy+OLy )
C !INPUT/OUTPUT PARAMETERS:
C === Routine arguments ===
C- input:
C bi,bj :: tile indices
C iMin,iMax :: computation domain: 1rst index range
C jMin,jMax :: computation domain: 2nd index range
C myTime :: time counter for this thread
C myIter :: iteration counter for this thread
C myThid :: thread number for this instance of the routine.
C-- Modify fluxes hold in commom blocks
C- input:
C icFlxSW :: (Inp) short-wave heat flux (+=down): downward comp. only
C- output
C icFlxSW :: (Out) net SW flux into ocean (+=down)
C icFlxAtm:: net flux of energy from the atmosphere [W/m2] (+=down)
C icFrwAtm:: evaporation to the atmosphere (kg/m2/s) (>0 if evaporate)
C--
INTEGER bi,bj
INTEGER iMin, iMax
INTEGER jMin, jMax
_RL myTime
INTEGER myIter
INTEGER myThid
CEOP
#ifdef ALLOW_THSICE
C !LOCAL VARIABLES:
C === Local variables ===
C tFrzOce :: sea-water freezing temperature [oC] (function of S)
C dTsrf :: surf. temp adjusment: Ts^n+1 - Ts^n
INTEGER i,j
_RL tFrzOce(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
c _RL dTsrf (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
_RL tmpflx(1:2), tmpdTs(1:2)
#ifdef SHORTWAVE_HEATING
_RL opFrac, icFrac
#endif
LOGICAL dBugFlag
C- define grid-point location where to print debugging values
#include "THSICE_DEBUG.h"
1010 FORMAT(A,1P4E14.6)
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
#ifdef ALLOW_AUTODIFF_TAMC
act1 = bi - myBxLo(myThid)
max1 = myBxHi(myThid) - myBxLo(myThid) + 1
act2 = bj - myByLo(myThid)
max2 = myByHi(myThid) - myByLo(myThid) + 1
act3 = myThid - 1
max3 = nTx*nTy
act4 = ikey_dynamics - 1
iicekey = (act1 + 1) + act2*max1
& + act3*max1*max2
& + act4*max1*max2*max3
#endif /* ALLOW_AUTODIFF_TAMC */
dBugFlag = debugLevel.GE.debLevB
C- Initialise flxAtm,evpAtm
DO j = 1-OLy, sNy+OLy
DO i = 1-OLx, sNx+OLx
icFlxAtm(i,j,bi,bj) = 0.
icFrwAtm(i,j,bi,bj) = 0.
ENDDO
ENDDO
#ifdef ALLOW_AUTODIFF_TAMC
CADJ STORE tsrf(:,:,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte
#endif
c IF ( fluidIsWater ) THEN
CALL THSICE_ALBEDO(
I bi, bj, siLo, siHi, sjLo, sjHi,
I iMin,iMax, jMin,jMax,
I iceMask(siLo,sjLo,bi,bj), iceHeight(siLo,sjLo,bi,bj),
I snowHeight(siLo,sjLo,bi,bj), Tsrf(siLo,sjLo,bi,bj),
I snowAge(siLo,sjLo,bi,bj),
O siceAlb(siLo,sjLo,bi,bj),
I myTime, myIter, myThid )
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
C part.1 : ice-covered fraction ;
C Solve for surface and ice temperature (implicitly) ; compute surf. fluxes
C-------
#ifdef ALLOW_AUTODIFF_TAMC
CADJ STORE icflxsw(:,:,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte
#endif
DO j = jMin, jMax
DO i = iMin, iMax
IF (iceMask(i,j,bi,bj).GT.0. _d 0) THEN
#ifdef ALLOW_DBUG_THSICE
IF ( dBug(i,j,bi,bj) ) THEN
WRITE(6,'(A,2I4,2I2)') 'ThSI_STEP_T: i,j=',i,j,bi,bj
WRITE(6,1010) 'ThSI_STEP_T: iceMask, hIc, hSn, Tsf =',
& iceMask(i,j,bi,bj), iceHeight(i,j,bi,bj),
& snowHeight(i,j,bi,bj), Tsrf(i,j,bi,bj)
ENDIF
#endif
C- surface net SW flux:
icFlxSW(i,j,bi,bj) = icFlxSW(i,j,bi,bj)
& *(1. _d 0 - siceAlb(i,j,bi,bj))
tFrzOce(i,j) = -mu_Tf*sOceMxL(i,j,bi,bj)
ELSE
tFrzOce(i,j) = 0. _d 0
ENDIF
ENDDO
ENDDO
#ifdef ALLOW_AUTODIFF_TAMC
CADJ STORE qice1(:,:,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte
CADJ STORE qice2(:,:,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte
#endif
CALL THSICE_SOLVE4TEMP(
I bi, bj, siLo, siHi, sjLo, sjHi,
I iMin,iMax, jMin,jMax, dBugFlag,
I useBulkForce, useEXF,
I iceMask(siLo,sjLo,bi,bj), iceHeight(siLo,sjLo,bi,bj),
I snowHeight(siLo,sjLo,bi,bj), tFrzOce, tmpflx,
U icFlxSW(siLo,sjLo,bi,bj), Tsrf(siLo,sjLo,bi,bj),
U Qice1(siLo,sjLo,bi,bj), Qice2(siLo,sjLo,bi,bj),
O Tice1(siLo,sjLo,bi,bj), Tice2(siLo,sjLo,bi,bj), tmpdTs,
O sHeating(siLo,sjLo,bi,bj), flxCndBt(siLo,sjLo,bi,bj),
O icFlxAtm(siLo,sjLo,bi,bj), icFrwAtm(siLo,sjLo,bi,bj),
I myTime, myIter, myThid )
#ifdef SHORTWAVE_HEATING
DO j = jMin, jMax
DO i = iMin, iMax
IF (iceMask(i,j,bi,bj).GT.0. _d 0) THEN
icFrac = iceMask(i,j,bi,bj)
opFrac = 1. _d 0 - icFrac
C-- Update Fluxes :
Qsw(i,j,bi,bj) = opFrac*Qsw(i,j,bi,bj)
& - icFrac*icFlxSW(i,j,bi,bj)
ENDIF
ENDDO
ENDDO
#endif /* SHORTWAVE_HEATING */
c ENDIF
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
#endif /* ALLOW_THSICE */
RETURN
END