C $Header: /home/ubuntu/mnt/e9_copy/MITgcm/model/src/find_rho.F,v 1.38 2011/07/19 12:53:24 mlosch Exp $ C $Name: $ #include "CPP_OPTIONS.h" #define USE_FACTORIZED_POLY C-- File find_rho.F: Routines to compute density C-- Contents C-- o FIND_RHO_2D C-- o FIND_RHOP0 C-- o FIND_BULKMOD C-- o FIND_RHONUM C-- o FIND_RHODEN C-- o FIND_RHO_SCALAR: in-situ density for individual points C-- o LOOK_FOR_NEG_SALINITY C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| CBOP C !ROUTINE: FIND_RHO_2D C !INTERFACE: SUBROUTINE FIND_RHO_2D( I iMin, iMax, jMin, jMax, kRef, I tFld, sFld, O rhoLoc, I k, bi, bj, myThid ) C !DESCRIPTION: \bv C *==========================================================* C | o SUBROUTINE FIND_RHO_2D C | Calculates [rho(S,T,z)-rhoConst] of a 2-D slice C *==========================================================* C | C | kRef - determines pressure reference level C | (not used in 'LINEAR' mode) C | Note: k is not used ; keep it for debugging. C *==========================================================* C \ev C !USES: IMPLICIT NONE C == Global variables == #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "EOS.h" C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == C k :: Level of Theta/Salt slice C kRef :: Pressure reference level INTEGER iMin,iMax,jMin,jMax INTEGER kRef _RL tFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL sFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL rhoLoc(1-Olx:sNx+Olx,1-Oly:sNy+Oly) INTEGER k, bi, bj INTEGER myThid C !LOCAL VARIABLES: C == Local variables == INTEGER i,j _RL refTemp,refSalt,sigRef,tP,sP,deltaSig,dRho _RL locPres(1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL rhoP0 (1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL bulkMod(1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL rhoNum (1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL rhoDen (1-Olx:sNx+Olx,1-Oly:sNy+Oly) CHARACTER*(MAX_LEN_MBUF) msgBuf CEOP #ifdef ALLOW_AUTODIFF_TAMC DO j=1-OLy,sNy+OLy DO i=1-OLx,sNx+OLx rhoLoc(i,j) = 0. _d 0 rhoP0(i,j) = 0. _d 0 bulkMod(i,j) = 0. _d 0 ENDDO ENDDO #endif #ifdef CHECK_SALINITY_FOR_NEGATIVE_VALUES CALL LOOK_FOR_NEG_SALINITY( I iMin, iMax, jMin, jMax, U sFld, I k, bi, bj, myThid ) #endif IF (equationOfState.EQ.'LINEAR') THEN C ***NOTE*** C In the linear EOS, to make the static stability calculation meaningful C we use reference temp & salt from level kRef ; C ********** refTemp=tRef(kRef) refSalt=sRef(kRef) dRho = rhoNil-rhoConst DO j=jMin,jMax DO i=iMin,iMax rhoLoc(i,j)=rhoNil*( & sBeta*(sFld(i,j)-refSalt) & -tAlpha*(tFld(i,j)-refTemp) ) & + dRho ENDDO ENDDO ELSEIF (equationOfState.EQ.'POLY3') THEN refTemp=eosRefT(kRef) refSalt=eosRefS(kRef) sigRef=eosSig0(kRef) + (1000.-rhoConst) DO j=jMin,jMax DO i=iMin,iMax tP=tFld(i,j)-refTemp sP=sFld(i,j)-refSalt #ifdef USE_FACTORIZED_POLY deltaSig= & (( eosC(9,kRef)*sP + eosC(5,kRef) )*sP + eosC(2,kRef) )*sP & + ( ( eosC(6,kRef) & *tP & +eosC(7,kRef)*sP + eosC(3,kRef) & )*tP & +(eosC(8,kRef)*sP + eosC(4,kRef) )*sP + eosC(1,kRef) & )*tP #else deltaSig= & eosC(1,kRef)*tP & +eosC(2,kRef) *sP & +eosC(3,kRef)*tP*tP & +eosC(4,kRef)*tP *sP & +eosC(5,kRef) *sP*sP & +eosC(6,kRef)*tP*tP*tP & +eosC(7,kRef)*tP*tP *sP & +eosC(8,kRef)*tP *sP*sP & +eosC(9,kRef) *sP*sP*sP #endif rhoLoc(i,j)=sigRef+deltaSig ENDDO ENDDO ELSEIF ( equationOfState(1:5).EQ.'JMD95' & .OR. equationOfState.EQ.'UNESCO' ) THEN C nonlinear equation of state in pressure coordinates CALL PRESSURE_FOR_EOS( I bi, bj, iMin, iMax, jMin, jMax, kRef, O locPres, I myThid ) CALL FIND_RHOP0( I iMin, iMax, jMin, jMax, I tFld, sFld, O rhoP0, I myThid ) CALL FIND_BULKMOD( I iMin, iMax, jMin, jMax, I locPres, tFld, sFld, O bulkMod, I myThid ) c#ifdef ALLOW_AUTODIFF_TAMC cph can not DO storing here since find_rho is called multiple times; cph additional recomp. should be acceptable c#endif /* ALLOW_AUTODIFF_TAMC */ DO j=jMin,jMax DO i=iMin,iMax C density of sea water at pressure p rhoLoc(i,j) = rhoP0(i,j) & /(1. _d 0 - & locPres(i,j)*SItoBar/bulkMod(i,j) ) & - rhoConst ENDDO ENDDO ELSEIF ( equationOfState.EQ.'MDJWF' ) THEN CALL PRESSURE_FOR_EOS( I bi, bj, iMin, iMax, jMin, jMax, kRef, O locPres, I myThid ) CALL FIND_RHONUM( I iMin, iMax, jMin, jMax, I locPres, tFld, sFld, O rhoNum, I myThid ) CALL FIND_RHODEN( I iMin, iMax, jMin, jMax, I locPres, tFld, sFld, O rhoDen, I myThid ) c#ifdef ALLOW_AUTODIFF_TAMC cph can not DO storing here since find_rho is called multiple times; cph additional recomp. should be acceptable c#endif /* ALLOW_AUTODIFF_TAMC */ DO j=jMin,jMax DO i=iMin,iMax rhoLoc(i,j) = rhoNum(i,j)*rhoDen(i,j) - rhoConst ENDDO ENDDO ELSEIF ( equationOfState.EQ.'TEOS10' ) THEN CALL PRESSURE_FOR_EOS( I bi, bj, iMin, iMax, jMin, jMax, kRef, O locPres, I myThid ) CALL FIND_RHOTEOS( I iMin, iMax, jMin, jMax, I locPres, tFld, sFld, O rhoNum, rhoDen, I myThid ) c#ifdef ALLOW_AUTODIFF_TAMC cph can not DO storing here since find_rho is called multiple times; cph additional recomp. should be acceptable c#endif /* ALLOW_AUTODIFF_TAMC */ DO j=jMin,jMax DO i=iMin,iMax rhoLoc(i,j) = rhoNum(i,j)*rhoDen(i,j) - rhoConst ENDDO ENDDO ELSEIF( equationOfState .EQ. 'IDEALG' ) THEN C ELSE WRITE(msgBuf,'(3a)') & ' FIND_RHO_2D: equationOfState = "',equationOfState,'"' CALL PRINT_ERROR( msgBuf, myThid ) STOP 'ABNORMAL END: S/R FIND_RHO_2D' ENDIF RETURN END C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| CBOP C !ROUTINE: FIND_RHOP0 C !INTERFACE: SUBROUTINE FIND_RHOP0( I iMin, iMax, jMin, jMax, I tFld, sFld, O rhoP0, I myThid ) C !DESCRIPTION: \bv C *==========================================================* C | o SUBROUTINE FIND_RHOP0 C | Calculates rho(S,T,0) of a slice C *==========================================================* C *==========================================================* C \ev C !USES: IMPLICIT NONE C == Global variables == #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "EOS.h" C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == INTEGER iMin,iMax,jMin,jMax _RL tFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL sFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL rhoP0(1-Olx:sNx+Olx,1-Oly:sNy+Oly) INTEGER myThid C !LOCAL VARIABLES: C == Local variables == INTEGER i,j _RL rfresh, rsalt _RL t, t2, t3, t4, s, s3o2 CEOP DO j=jMin,jMax DO i=iMin,iMax C abbreviations t = tFld(i,j) t2 = t*t t3 = t2*t t4 = t3*t s = sFld(i,j) IF ( s .GT. 0. _d 0 ) THEN s3o2 = s*SQRT(s) ELSE s = 0. _d 0 s3o2 = 0. _d 0 ENDIF C density of freshwater at the surface rfresh = & eosJMDCFw(1) & + eosJMDCFw(2)*t & + eosJMDCFw(3)*t2 & + eosJMDCFw(4)*t3 & + eosJMDCFw(5)*t4 & + eosJMDCFw(6)*t4*t C density of sea water at the surface rsalt = & s*( & eosJMDCSw(1) & + eosJMDCSw(2)*t & + eosJMDCSw(3)*t2 & + eosJMDCSw(4)*t3 & + eosJMDCSw(5)*t4 & ) & + s3o2*( & eosJMDCSw(6) & + eosJMDCSw(7)*t & + eosJMDCSw(8)*t2 & ) & + eosJMDCSw(9)*s*s rhoP0(i,j) = rfresh + rsalt ENDDO ENDDO RETURN END C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| CBOP C !ROUTINE: FIND_BULKMOD C !INTERFACE: SUBROUTINE FIND_BULKMOD( I iMin, iMax, jMin, jMax, I locPres, tFld, sFld, O bulkMod, I myThid ) C !DESCRIPTION: \bv C *==========================================================* C | o SUBROUTINE FIND_BULKMOD C | Calculates the secant bulk modulus K(S,T,p) of a slice C *==========================================================* C | k - is the level of Theta/Salt slice C *==========================================================* C \ev C !USES: IMPLICIT NONE C == Global variables == #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "EOS.h" C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == INTEGER iMin,iMax,jMin,jMax _RL locPres(1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL tFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL sFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL bulkMod(1-Olx:sNx+Olx,1-Oly:sNy+Oly) INTEGER myThid C !LOCAL VARIABLES: C == Local variables == INTEGER i,j _RL bMfresh, bMsalt, bMpres _RL t, t2, t3, t4, s, s3o2, p, p2 CEOP DO j=jMin,jMax DO i=iMin,iMax C abbreviations t = tFld(i,j) t2 = t*t t3 = t2*t t4 = t3*t s = sFld(i,j) IF ( s .GT. 0. _d 0 ) THEN s3o2 = s*SQRT(s) ELSE s = 0. _d 0 s3o2 = 0. _d 0 ENDIF C p = locPres(i,j)*SItoBar p2 = p*p C secant bulk modulus of fresh water at the surface bMfresh = & eosJMDCKFw(1) & + eosJMDCKFw(2)*t & + eosJMDCKFw(3)*t2 & + eosJMDCKFw(4)*t3 & + eosJMDCKFw(5)*t4 C secant bulk modulus of sea water at the surface bMsalt = & s*( eosJMDCKSw(1) & + eosJMDCKSw(2)*t & + eosJMDCKSw(3)*t2 & + eosJMDCKSw(4)*t3 & ) & + s3o2*( eosJMDCKSw(5) & + eosJMDCKSw(6)*t & + eosJMDCKSw(7)*t2 & ) C secant bulk modulus of sea water at pressure p bMpres = & p*( eosJMDCKP(1) & + eosJMDCKP(2)*t & + eosJMDCKP(3)*t2 & + eosJMDCKP(4)*t3 & ) & + p*s*( eosJMDCKP(5) & + eosJMDCKP(6)*t & + eosJMDCKP(7)*t2 & ) & + p*s3o2*eosJMDCKP(8) & + p2*( eosJMDCKP(9) & + eosJMDCKP(10)*t & + eosJMDCKP(11)*t2 & ) & + p2*s*( eosJMDCKP(12) & + eosJMDCKP(13)*t & + eosJMDCKP(14)*t2 & ) bulkMod(i,j) = bMfresh + bMsalt + bMpres ENDDO ENDDO RETURN END C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| CBOP C !ROUTINE: FIND_RHONUM C !INTERFACE: SUBROUTINE FIND_RHONUM( I iMin, iMax, jMin, jMax, I locPres, tFld, sFld, O rhoNum, I myThid ) C !DESCRIPTION: \bv C *==========================================================* C | o SUBROUTINE FIND_RHONUM C | Calculates the numerator of the McDougall et al. C | equation of state C | - the code is more or less a copy of MOM4 C *==========================================================* C *==========================================================* C \ev C !USES: IMPLICIT NONE C == Global variables == #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "EOS.h" C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == INTEGER iMin,iMax,jMin,jMax _RL locPres(1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL tFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL sFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL rhoNum (1-Olx:sNx+Olx,1-Oly:sNy+Oly) INTEGER myThid C !LOCAL VARIABLES: C == Local variables == INTEGER i,j _RL t1, t2, s1, p1 CEOP DO j=jMin,jMax DO i=iMin,iMax C abbreviations t1 = tFld(i,j) t2 = t1*t1 s1 = sFld(i,j) p1 = locPres(i,j)*SItodBar rhoNum(i,j) = eosMDJWFnum(0) & + t1*(eosMDJWFnum(1) & + t1*(eosMDJWFnum(2) + eosMDJWFnum(3)*t1) ) & + s1*(eosMDJWFnum(4) & + eosMDJWFnum(5)*t1 + eosMDJWFnum(6)*s1) & + p1*(eosMDJWFnum(7) + eosMDJWFnum(8)*t2 & + eosMDJWFnum(9)*s1 & + p1*(eosMDJWFnum(10) + eosMDJWFnum(11)*t2) ) ENDDO ENDDO RETURN END C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| CBOP C !ROUTINE: FIND_RHODEN C !INTERFACE: SUBROUTINE FIND_RHODEN( I iMin, iMax, jMin, jMax, I locPres, tFld, sFld, O rhoDen, I myThid ) C !DESCRIPTION: \bv C *==========================================================* C | o SUBROUTINE FIND_RHODEN C | Calculates the denominator of the McDougall et al. C | equation of state C | - the code is more or less a copy of MOM4 C *==========================================================* C *==========================================================* C \ev C !USES: IMPLICIT NONE C == Global variables == #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "EOS.h" C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == INTEGER iMin,iMax,jMin,jMax _RL locPres(1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL tFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL sFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL rhoDen (1-Olx:sNx+Olx,1-Oly:sNy+Oly) INTEGER myThid C !LOCAL VARIABLES: C == Local variables == INTEGER i,j _RL t1, t2, s1, sp5, p1, p1t1 _RL den, epsln parameter ( epsln = 0. _d 0 ) CEOP DO j=jMin,jMax DO i=iMin,iMax C abbreviations t1 = tFld(i,j) t2 = t1*t1 s1 = sFld(i,j) IF ( s1 .GT. 0. _d 0 ) THEN sp5 = SQRT(s1) ELSE s1 = 0. _d 0 sp5 = 0. _d 0 ENDIF p1 = locPres(i,j)*SItodBar p1t1 = p1*t1 den = eosMDJWFden(0) & + t1*(eosMDJWFden(1) & + t1*(eosMDJWFden(2) & + t1*(eosMDJWFden(3) + t1*eosMDJWFden(4) ) ) ) & + s1*(eosMDJWFden(5) & + t1*(eosMDJWFden(6) & + eosMDJWFden(7)*t2) & + sp5*(eosMDJWFden(8) + eosMDJWFden(9)*t2) ) & + p1*(eosMDJWFden(10) & + p1t1*(eosMDJWFden(11)*t2 + eosMDJWFden(12)*p1) ) rhoDen(i,j) = 1.0/(epsln+den) ENDDO ENDDO RETURN END C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| CBOP C !ROUTINE: FIND_RHOTEOS C !INTERFACE: SUBROUTINE FIND_RHOTEOS( I iMin, iMax, jMin, jMax, I locPres, tFld, sFld, O rhoNum, rhoDen, I myThid ) C !DESCRIPTION: \bv C *==========================================================* C | o SUBROUTINE FIND_RHONUMTEOS C | Calculates numerator and inverse of denominator of the C | TEOS-10 (McDougall et al. 2011) equation of state C | - the code is more or less a copy the teos-10 toolbox C | available at http://www.teos-10.org C *==========================================================* C \ev C !USES: IMPLICIT NONE C == Global variables == #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "EOS.h" C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == INTEGER iMin,iMax,jMin,jMax _RL locPres(1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL tFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL sFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL rhoNum (1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL rhoDen (1-Olx:sNx+Olx,1-Oly:sNy+Oly) INTEGER myThid C !LOCAL VARIABLES: C == Local variables == INTEGER i,j _RL ct, sa, sqrtsa, p _RL den, epsln parameter ( epsln = 0. _d 0 ) CEOP DO j=jMin,jMax DO i=iMin,iMax C abbreviations ct = tFld(i,j) sa = sFld(i,j) IF ( sa .GT. 0. _d 0 ) THEN sqrtsa = SQRT(sa) ELSE sa = 0. _d 0 sqrtsa = 0. _d 0 ENDIF p = locPres(i,j)*SItodBar rhoNum(i,j) = teos(01) & + ct*(teos(02) + ct*(teos(03) + teos(04)*ct)) & + sa*(teos(05) + ct*(teos(06) + teos(07)*ct) & + sqrtsa*(teos(08) + ct*(teos(09) & + ct*(teos(10) + teos(11)*ct)))) & + p*(teos(12) + ct*(teos(13) + teos(14)*ct) & + sa*(teos(15) + teos(16)*ct) & + p*(teos(17) + ct*(teos(18) + teos(19)*ct) + teos(20)*sa)) den = teos(21) & + ct*(teos(22) + ct*(teos(23) + ct*(teos(24) + teos(25)*ct))) & + sa*(teos(26) + ct*(teos(27) + ct*(teos(28) & + ct*(teos(29) + teos(30)*ct))) & + teos(36)*sa & + sqrtsa*(teos(31) + ct*(teos(32) + ct*(teos(33) & + ct*(teos(34) + teos(35)*ct))))) & + p*(teos(37) + ct*(teos(38) + ct*(teos(39) + teos(40)*ct)) & + sa*(teos(41) + teos(42)*ct) & + p*(teos(43) + ct*(teos(44) + teos(45)*ct + teos(46)*sa) & + p*(teos(47) + teos(48)*ct))) rhoDen(i,j) = 1.0/(epsln+den) ENDDO ENDDO RETURN END C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| CBOP C !ROUTINE: FIND_RHO_SCALAR C !INTERFACE: SUBROUTINE FIND_RHO_SCALAR( I tLoc, sLoc, pLoc, O rhoLoc, I myThid ) C !DESCRIPTION: \bv C *==========================================================* C | o SUBROUTINE FIND_RHO_SCALAR C | Calculates rho(S,T,p) C *==========================================================* C \ev C !USES: IMPLICIT NONE C == Global variables == #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "EOS.h" C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == _RL tLoc, sLoc, pLoc _RL rhoLoc INTEGER myThid C !LOCAL VARIABLES: C == Local variables == _RL t1, t2, t3, t4, s1, s3o2, p1, p2, sp5, p1t1 _RL ct, sa, sqrtsa, p _RL rfresh, rsalt, rhoP0 _RL bMfresh, bMsalt, bMpres, BulkMod _RL rhoNum, rhoDen, den, epsln PARAMETER ( epsln = 0. _d 0 ) CHARACTER*(MAX_LEN_MBUF) msgBuf CEOP rhoLoc = 0. _d 0 rhoP0 = 0. _d 0 bulkMod = 0. _d 0 rfresh = 0. _d 0 rsalt = 0. _d 0 bMfresh = 0. _d 0 bMsalt = 0. _d 0 bMpres = 0. _d 0 rhoNum = 0. _d 0 rhoDen = 0. _d 0 den = 0. _d 0 t1 = tLoc t2 = t1*t1 t3 = t2*t1 t4 = t3*t1 s1 = sLoc IF ( s1 .LT. 0. _d 0 ) THEN C issue a warning WRITE(msgBuf,'(A,E13.5)') & ' FIND_RHO_SCALAR: WARNING, salinity = ', s1 CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, & SQUEEZE_RIGHT , myThid ) s1 = 0. _d 0 ENDIF IF (equationOfState.EQ.'LINEAR') THEN rholoc = rhoNil*( & sBeta *(sLoc-sRef(1)) & -tAlpha*(tLoc-tRef(1)) & ) + rhoNil c rhoLoc = 0. _d 0 ELSEIF (equationOfState.EQ.'POLY3') THEN C this is not correct, there is a field eosSig0 which should be use here C but I DO not intent to include the reference level in this routine WRITE(msgBuf,'(A)') & ' FIND_RHO_SCALAR: for POLY3, the density is not' CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, & SQUEEZE_RIGHT , myThid ) WRITE(msgBuf,'(A)') & ' computed correctly in this routine' CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, & SQUEEZE_RIGHT , myThid ) rhoLoc = 0. _d 0 ELSEIF ( equationOfState(1:5).EQ.'JMD95' & .OR. equationOfState.EQ.'UNESCO' ) THEN C nonlinear equation of state in pressure coordinates s3o2 = s1*SQRT(s1) p1 = pLoc*SItoBar p2 = p1*p1 C density of freshwater at the surface rfresh = & eosJMDCFw(1) & + eosJMDCFw(2)*t1 & + eosJMDCFw(3)*t2 & + eosJMDCFw(4)*t3 & + eosJMDCFw(5)*t4 & + eosJMDCFw(6)*t4*t1 C density of sea water at the surface rsalt = & s1*( & eosJMDCSw(1) & + eosJMDCSw(2)*t1 & + eosJMDCSw(3)*t2 & + eosJMDCSw(4)*t3 & + eosJMDCSw(5)*t4 & ) & + s3o2*( & eosJMDCSw(6) & + eosJMDCSw(7)*t1 & + eosJMDCSw(8)*t2 & ) & + eosJMDCSw(9)*s1*s1 rhoP0 = rfresh + rsalt C secant bulk modulus of fresh water at the surface bMfresh = & eosJMDCKFw(1) & + eosJMDCKFw(2)*t1 & + eosJMDCKFw(3)*t2 & + eosJMDCKFw(4)*t3 & + eosJMDCKFw(5)*t4 C secant bulk modulus of sea water at the surface bMsalt = & s1*( eosJMDCKSw(1) & + eosJMDCKSw(2)*t1 & + eosJMDCKSw(3)*t2 & + eosJMDCKSw(4)*t3 & ) & + s3o2*( eosJMDCKSw(5) & + eosJMDCKSw(6)*t1 & + eosJMDCKSw(7)*t2 & ) C secant bulk modulus of sea water at pressure p bMpres = & p1*( eosJMDCKP(1) & + eosJMDCKP(2)*t1 & + eosJMDCKP(3)*t2 & + eosJMDCKP(4)*t3 & ) & + p1*s1*( eosJMDCKP(5) & + eosJMDCKP(6)*t1 & + eosJMDCKP(7)*t2 & ) & + p1*s3o2*eosJMDCKP(8) & + p2*( eosJMDCKP(9) & + eosJMDCKP(10)*t1 & + eosJMDCKP(11)*t2 & ) & + p2*s1*( eosJMDCKP(12) & + eosJMDCKP(13)*t1 & + eosJMDCKP(14)*t2 & ) bulkMod = bMfresh + bMsalt + bMpres C density of sea water at pressure p rhoLoc = rhoP0/(1. _d 0 - p1/bulkMod) ELSEIF ( equationOfState.EQ.'MDJWF' ) THEN sp5 = SQRT(s1) p1 = pLoc*SItodBar p1t1 = p1*t1 rhoNum = eosMDJWFnum(0) & + t1*(eosMDJWFnum(1) & + t1*(eosMDJWFnum(2) + eosMDJWFnum(3)*t1) ) & + s1*(eosMDJWFnum(4) & + eosMDJWFnum(5)*t1 + eosMDJWFnum(6)*s1) & + p1*(eosMDJWFnum(7) + eosMDJWFnum(8)*t2 & + eosMDJWFnum(9)*s1 & + p1*(eosMDJWFnum(10) + eosMDJWFnum(11)*t2) ) den = eosMDJWFden(0) & + t1*(eosMDJWFden(1) & + t1*(eosMDJWFden(2) & + t1*(eosMDJWFden(3) + t1*eosMDJWFden(4) ) ) ) & + s1*(eosMDJWFden(5) & + t1*(eosMDJWFden(6) & + eosMDJWFden(7)*t2) & + sp5*(eosMDJWFden(8) + eosMDJWFden(9)*t2) ) & + p1*(eosMDJWFden(10) & + p1t1*(eosMDJWFden(11)*t2 + eosMDJWFden(12)*p1) ) rhoDen = 1.0/(epsln+den) rhoLoc = rhoNum*rhoDen ELSEIF( equationOfState .EQ. 'TEOS10' ) THEN ct = tLoc sa = sLoc IF ( sa .GT. 0. _d 0 ) THEN sqrtsa = SQRT(sa) ELSE sa = 0. _d 0 sqrtsa = 0. _d 0 ENDIF p = pLoc*SItodBar rhoNum = teos(01) & + ct*(teos(02) + ct*(teos(03) + teos(04)*ct)) & + sa*(teos(05) + ct*(teos(06) + teos(07)*ct) & + sqrtsa*(teos(08) + ct*(teos(09) & + ct*(teos(10) + teos(11)*ct)))) & + p*(teos(12) + ct*(teos(13) + teos(14)*ct) & + sa*(teos(15) + teos(16)*ct) & + p*(teos(17) + ct*(teos(18) + teos(19)*ct) + teos(20)*sa)) den = teos(21) & + ct*(teos(22) + ct*(teos(23) + ct*(teos(24) + teos(25)*ct))) & + sa*(teos(26) + ct*(teos(27) + ct*(teos(28) & + ct*(teos(29) + teos(30)*ct))) & + teos(36)*sa % + sqrtsa*(teos(31) + ct*(teos(32) + ct*(teos(33) & + ct*(teos(34) + teos(35)*ct))))) % + p*(teos(37) + ct*(teos(38) + ct*(teos(39) + teos(40)*ct)) % + sa*(teos(41) + teos(42)*ct) % + p*(teos(43) + ct*(teos(44) + teos(45)*ct + teos(46)*sa) % + p*(teos(47) + teos(48)*ct))) rhoDen = 1.0/(epsln+den) rhoLoc = rhoNum*rhoDen ELSEIF( equationOfState .EQ. 'IDEALG' ) THEN C ELSE WRITE(msgBuf,'(3A)') & ' FIND_RHO_SCALAR : equationOfState = "', & equationOfState,'"' CALL PRINT_ERROR( msgBuf, myThid ) STOP 'ABNORMAL END: S/R FIND_RHO_SCALAR' ENDIF RETURN END C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| CBOP C !ROUTINE: LOOK_FOR_NEG_SALINITY C !INTERFACE: SUBROUTINE LOOK_FOR_NEG_SALINITY( I iMin, iMax, jMin, jMax, U sFld, I k, bi, bj, myThid ) C !DESCRIPTION: \bv C *==========================================================* C | o SUBROUTINE LOOK_FOR_NEG_SALINITY C | looks for and fixes negative salinity values C | this is necessary IF the equation of state uses C | the square root of salinity C *==========================================================* C | k - is the Salt level C *==========================================================* C \ev C !USES: IMPLICIT NONE C == Global variables == #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == C k :: Level of Salt slice INTEGER iMin,iMax,jMin,jMax _RL sFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) INTEGER k, bi, bj INTEGER myThid C !LOCAL VARIABLES: C == Local variables == INTEGER i,j, localWarning CHARACTER*(MAX_LEN_MBUF) msgBuf CEOP localWarning = 0 DO j=jMin,jMax DO i=iMin,iMax C abbreviations IF ( sFld(i,j) .LT. 0. _d 0 ) THEN localWarning = localWarning + 1 sFld(i,j) = 0. _d 0 ENDIF ENDDO ENDDO C issue a warning IF ( localWarning .GT. 0 ) THEN WRITE(msgBuf,'(2A,I5,A,2I4)') 'S/R LOOK_FOR_NEG_SALINITY:', & ' from level k =', k, ' ; bi,bj =', bi, bj CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) WRITE(msgBuf,'(2A,I6,A)') 'S/R LOOK_FOR_NEG_SALINITY:', & ' reset to zero', localWarning, ' negative salinity.' CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) ENDIF RETURN END