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shelfice_init_fixed.F
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shelfice_init_fixed.F
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#include "SHELFICE_OPTIONS.h"
#ifdef ALLOW_COST
# include "COST_OPTIONS.h"
#endif
#ifdef ALLOW_CTRL
# include "CTRL_OPTIONS.h"
#endif
SUBROUTINE SHELFICE_INIT_FIXED( myThid )
C *============================================================*
C | SUBROUTINE SHELFICE_INIT_FIXED
C | o Routine to initialize SHELFICE parameters and variables.
C *============================================================*
C | Initialize SHELFICE parameters and variables.
C *============================================================*
IMPLICIT NONE
C === Global variables ===
#include "SIZE.h"
#include "EEPARAMS.h"
#include "PARAMS.h"
#include "GRID.h"
#include "SHELFICE.h"
#ifdef ALLOW_COST
# include "cost.h"
# include "SHELFICE_COST.h"
#endif /* ALLOW_COST */
C === Routine arguments ===
C myThid :: Number of this instance of SHELFICE_INIT_FIXED
INTEGER myThid
#ifdef ALLOW_SHELFICE
C === Local variables ===
C i, j, bi, bj :: Loop counters
C SHI_minDepth :: minimum Ice-Shelf depth
C msgBuf :: Informational/error message buffer
INTEGER i, j, bi, bj
_RS SHI_minDepth
CHARACTER*(MAX_LEN_MBUF) msgBuf
#ifdef ALLOW_DIAGNOSTICS
INTEGER diagNum
INTEGER diagMate
CHARACTER*8 diagName
CHARACTER*16 diagCode
CHARACTER*16 diagUnits
CHARACTER*(80) diagTitle
#endif /* ALLOW_DIAGNOSTICS */
#ifdef ALLOW_CTRL
INTEGER k
#endif
#ifdef ALLOW_MNC
C Initialize MNC variable information for SHELFICE
IF ( useMNC .AND. (shelfice_tave_mnc.OR.shelfice_dump_mnc)
& ) THEN
CALL SHELFICE_MNC_INIT( myThid )
ENDIF
#endif /* ALLOW_MNC */
DO bj = myByLo(myThid), myByHi(myThid)
DO bi = myBxLo(myThid), myBxHi(myThid)
DO j = 1-OLy, sNy+OLy
DO i = 1-OLx, sNx+OLx
shelficeMassInit (i,j,bi,bj) = 0. _d 0
shelficeLoadAnomaly(i,j,bi,bj) = 0. _d 0
shelfIceMassDynTendency(i,j,bi,bj) = 0. _d 0
ENDDO
ENDDO
ENDDO
ENDDO
IF ( SHELFICEloadAnomalyFile .NE. ' ' ) THEN
CALL READ_FLD_XY_RL( SHELFICEloadAnomalyFile, ' ',
& shelficeLoadAnomaly, 0, myThid )
ENDIF
IF ( SHELFICEmassFile.NE.' ' ) THEN
CALL READ_FLD_XY_RL( SHELFICEmassFile, ' ',
& shelficeMassInit, 0, myThid )
ELSE
DO bj = myByLo(myThid), myByHi(myThid)
DO bi = myBxLo(myThid), myBxHi(myThid)
DO j = 1, sNy
DO i = 1, sNx
shelficeMassInit(i,j,bi,bj) =
& shelficeLoadAnomaly(i,j,bi,bj)*recip_gravity
& - rhoConst*Ro_surf(i,j,bi,bj)
ENDDO
ENDDO
ENDDO
ENDDO
ENDIF
_EXCH_XY_RL( shelficeMassInit, myThid )
C-----------------------------------------------------------------------
C-- Initialize SHELFICE variables kTopC
C-- kTopC is the same as kSurfC, except outside ice-shelf area:
C-- kTop = 0 where there is no ice-shelf (where kSurfC=1)
C-- and over land (completely dry column) where kSurfC = Nr+1
C-----------------------------------------------------------------------
C-- Currently, there is no specific pkg/shelfice criteria to decide when very
C thin ice-shelf vanishes: some limits come from ocean hFacMin/hFacMinDr;
C but should depend on shelficeMass if SHELFICEMassStepping is used.
C Here the SHI_minDepth threshold is just to get around machine round-off
C isssues so does not need to be a run-time params.
SHI_minDepth = 1. _d -6
SHI_minDepth = rF(1) - drF(1)*SHI_minDepth
DO bj = myByLo(myThid), myByHi(myThid)
DO bi = myBxLo(myThid), myBxHi(myThid)
IF ( SHELFICEMassStepping ) THEN
C- In this case, it is recommended to initialise ice-shelf Mass (from file)
C And if updating "kTopC" is permitted (SHI_update_kTopC=T), kTopC will
C be reset in SHELFICE_INIT_VARIA after loading shelficeMass from pickup
DO j = 1-OLy, sNy+OLy
DO i = 1-OLx, sNx+OLx
IF ( kSurfC(i,j,bi,bj).LE.Nr .AND.
& shelficeMassInit(i,j,bi,bj).GT.zeroRL ) THEN
kTopC(i,j,bi,bj) = kSurfC(i,j,bi,bj)
ELSE
kTopC(i,j,bi,bj) = 0
ENDIF
ENDDO
ENDDO
ELSE
C- no time-evolving Ice-Shelf: set kTopC according to Ro_surf
C Note: use Ro_surf instead of R_shelfIce to stay consistent
C with ocean mask & hFac, see issue #99
DO j = 1-OLy, sNy+OLy
DO i = 1-OLx, sNx+OLx
IF ( kSurfC(i,j,bi,bj).LE.Nr .AND.
& Ro_surf(i,j,bi,bj).LT.SHI_minDepth ) THEN
c & R_shelfIce(i,j,bi,bj).LT.rF(1) ) THEN
kTopC(i,j,bi,bj) = kSurfC(i,j,bi,bj)
ELSE
kTopC(i,j,bi,bj) = 0
ENDIF
ENDDO
ENDDO
ENDIF
ENDDO
ENDDO
#ifdef ALLOW_CTRL
C maskSHI is a hack to play along with the general ctrl-package
C infrastructure, where only the k=1 layer of a 3D mask is used
C for 2D fields. We cannot use maskInC instead, because routines
C like ctrl_get_gen and ctrl_set_unpack_xy require 3D masks.
DO bj = myByLo(myThid), myByHi(myThid)
DO bi = myBxLo(myThid), myBxHi(myThid)
DO k=1,Nr
DO j=1-OLy,sNy+OLy
DO i=1-OLx,sNx+OLx
maskSHI(i,j,k,bi,bj) = 0. _d 0
ENDDO
ENDDO
ENDDO
DO k=1,Nr
DO j=1-OLy,sNy+OLy
DO i=1-OLx,sNx+OLx
IF ( kTopC(i,j,bi,bj).GE.1
& .AND. maskC(i,j,k,bi,bj).NE.zeroRS ) THEN
maskSHI(i,j,k,bi,bj) = 1. _d 0
maskSHI(i,j,1,bi,bj) = 1. _d 0
ENDIF
ENDDO
ENDDO
ENDDO
ENDDO
ENDDO
#endif /* ALLOW_CTRL */
IF ( debugLevel.GE.debLevC ) THEN
WRITE(msgBuf,'(A)')
& 'SHELFICE_INIT_FIXED: checking Ice-Shelf extension & kTopC'
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
& SQUEEZE_RIGHT, myThid )
WRITE(msgBuf,'(A,1PE18.10)')
& 'SHELFICE_INIT_FIXED: SHI_minDepth =', SHI_minDepth
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
& SQUEEZE_RIGHT, myThid )
DO bj = myByLo(myThid), myByHi(myThid)
DO bi = myBxLo(myThid), myBxHi(myThid)
c DO j = 1-OLy, sNy+OLy
c DO i = 1-OLx, sNx+OLx
DO j = 1, sNy
DO i = 1, sNx
IF ( kTopC(i,j,bi,bj).NE.0 .AND.
& ( shelficeMassInit(i,j,bi,bj).LE.zeroRL
& .OR. R_shelfIce(i,j,bi,bj).GE.rF(1) ) ) THEN
WRITE(standardMessageUnit,'(A,2I4,2I3,A,1P3E17.9)')
& ' Ice-Shelf (kTopC>0) in i,j,bi,bj=', i, j, bi, bj,
& ' but R_shelf,Ro_surf,MassIni=', R_shelfIce(i,j,bi,bj),
& Ro_surf(i,j,bi,bj), shelficeMassInit(i,j,bi,bj)
ELSEIF ( kTopC(i,j,bi,bj).EQ.0 .AND.
& ( shelficeMassInit(i,j,bi,bj).GT.zeroRL
& .OR. R_shelfIce(i,j,bi,bj).LT.rF(1) ) ) THEN
WRITE(standardMessageUnit,'(A,2I4,2I3,A,1P3E17.9)')
& ' no Ice-Shelf (kTopC=0) i,j,bi,bj=', i, j, bi, bj,
& ' but R_shelf,Ro_surf,MassIni=', R_shelfIce(i,j,bi,bj),
& Ro_surf(i,j,bi,bj), shelficeMassInit(i,j,bi,bj)
ENDIF
ENDDO
ENDDO
ENDDO
ENDDO
WRITE(msgBuf,'(A)')
& 'SHELFICE_INIT_FIXED: checking Ice-Shelf extension: done'
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
& SQUEEZE_RIGHT, myThid )
ENDIF
c IF ( SHELFICEloadAnomalyFile .EQ. ' ' ) THEN
C- In case we need shelficeLoadAnomaly in phi0surf for initial pressure
C calculation (if using selectP_inEOS_Zc=2 or 3)
DO bj = myByLo(myThid), myByHi(myThid)
DO bi = myBxLo(myThid), myBxHi(myThid)
DO j = 1-OLy, sNy+OLy
DO i = 1-OLx, sNx+OLx
IF ( kTopC(i,j,bi,bj).EQ.0 ) THEN
R_shelfIce (i,j,bi,bj) = rF(1)
shelficeMassInit (i,j,bi,bj) = 0. _d 0
shelficeLoadAnomaly(i,j,bi,bj) = 0. _d 0
ELSE
shelficeLoadAnomaly(i,j,bi,bj) = gravity
& *(shelficeMassInit(i,j,bi,bj)+rhoConst*Ro_surf(i,j,bi,bj))
ENDIF
ENDDO
ENDDO
ENDDO
ENDDO
c ELSE
c _EXCH_XY_RS( shelficeLoadAnomaly, myThid )
c ENDIF
CALL WRITE_FLD_XY_RL ( 'shelficemassinit', ' ',
& shelficeMassInit, 0, myThid )
IF ( debugLevel.GE.debLevC ) THEN
CALL WRITE_FLD_XY_RL( 'SHICE_pLoadAnom', ' ',
I shelficeLoadAnomaly, -1, myThid )
ENDIF
IF ( SHELFICEMassStepping .AND.
& SHELFICEMassDynTendFile .NE. ' ' ) THEN
CALL READ_FLD_XY_RS( SHELFICEMassDynTendFile, ' ',
& shelfIceMassDynTendency, 0, myThid )
ENDIF
#ifdef ALLOW_DIAGNOSTICS
IF ( useDiagnostics ) THEN
diagName = 'SHIfwFlx'
diagTitle = 'Ice shelf fresh water flux (positive upward)'
diagUnits = 'kg/m^2/s '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
diagName = 'SHIhtFlx'
diagTitle = 'Ice shelf heat flux (positive upward)'
diagUnits = 'W/m^2 '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
diagName = 'SHI_TauX'
diagTitle =
& 'Ice shelf bottom stress, zonal comp., >0 increases uVel'
diagUnits = 'N/m^2 '
diagCode = 'UU L1 '
diagMate = diagNum + 2
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, diagMate, myThid )
diagName = 'SHI_TauY'
diagTitle =
& 'Ice shelf bottom stress, merid. comp., >0 increases vVel'
diagUnits = 'N/m^2 '
diagCode = 'VV L1 '
diagMate = diagNum
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, diagMate, myThid )
diagName = 'SHIForcT'
diagTitle = 'Ice shelf forcing for theta, >0 increases theta'
diagUnits = 'W/m^2 '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
diagName = 'SHIForcS'
diagTitle = 'Ice shelf forcing for salt, >0 increases salt'
diagUnits = 'g/m^2/s '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
diagName = 'SHIgammT'
diagTitle = 'Ice shelf exchange coefficient for theta'
diagUnits = 'm/s '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
diagName = 'SHIgammS'
diagTitle = 'Ice shelf exchange coefficient for salt'
diagUnits = 'm/s '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
diagName = 'SHI_mass'
diagTitle = 'dynamic ice shelf mass for surface load anomaly'
diagUnits = 'kg/m^2 '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
#ifdef SHI_ALLOW_GAMMAFRICT
diagName = 'SHIuStar'
diagTitle = 'Friction velocity at bottom of ice shelf'
diagUnits = 'm/s '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
diagName = 'SHICDrag'
diagTitle = 'Shelfice drag coefficient for u* parameterization'
diagUnits = '1 '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
#endif
#ifdef ALLOW_SHELFICE_REMESHING
diagName = 'SHIRshel'
diagTitle = 'depth of shelfice'
diagUnits = 'm '
diagCode = 'SM L1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
#endif
# ifdef ALLOW_AUTODIFF
# ifndef SHI_ALLOW_GAMMAFRICT
diagName = 'ADJshict'
diagTitle = 'dJ/dgammaT: Sens. to shelfice heat transfer coeff'
diagUnits = 'dJ/(m/s) '
diagCode = 'SM A M1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
diagName = 'ADJshics'
diagTitle = 'dJ/dgammaS: Sens. to shelfice salt transfer coeff'
diagUnits = 'dJ/(m/s) '
diagCode = 'SM A M1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
# else
diagName = 'ADJshicd'
diagTitle = 'dJ/dcDrag: Sensitivity to shelfice u* drag coeff'
diagUnits = 'dJ/1 '
diagCode = 'SM A M1 '
CALL DIAGNOSTICS_ADDTOLIST( diagNum,
I diagName, diagCode, diagUnits, diagTitle, 0, myThid )
# endif
# endif
ENDIF
#endif /* ALLOW_DIAGNOSTICS */
#endif /* ALLOW_SHELFICE */
RETURN
END