C $Header: /u/gcmpack/MITgcm/model/src/ini_eos.F,v 1.21 2011/07/19 12:53:24 mlosch Exp $
C $Name:  $

#include "CPP_OPTIONS.h"
#undef INCLUDE_EOS_CHECK

C--  File ini_eos.F: Routines to initialise Equation of State
C--   Contents
C--   o INI_EOS
C--   o EOS_CHECK

C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
CBOP
C     !ROUTINE: INI_EOS
C     !INTERFACE:
      SUBROUTINE INI_EOS( myThid )
C     !DESCRIPTION: \bv
C     *==========================================================*
C     | SUBROUTINE INI_EOS
C     | o Initialise coefficients of equation of state.
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     myThid -  Number of this instance of INI_CORI
      INTEGER myThid

C     !LOCAL VARIABLES:
C     == Local variables ==
C     i,k    :: Loop counters
      INTEGER  i, k
      CHARACTER*(MAX_LEN_MBUF) msgBuf

      IF ( .NOT.fluidIsWater ) RETURN

      _BARRIER
      _BEGIN_MASTER(myThid)

      equationOfState = eosType

      DO k = 1,6
         eosJMDCFw(k) = 0. _d 0
      ENDDO
      DO k = 1,9
         eosJMDCSw(k) = 0. _d 0
      ENDDO
      DO k = 1,5
         eosJMDCKFw(k) = 0. _d 0
      ENDDO
      DO k = 1,7
         eosJMDCKSw(k) = 0. _d 0
      ENDDO
      DO k = 1,14
         eosJMDCKP(k) = 0. _d 0
      ENDDO
      DO k = 0,11
         eosMDJWFnum(k) = 0. _d 0
      ENDDO
      DO k = 0,12
         eosMDJWFden(k) = 0. _d 0
      ENDDO
      DO k = 1,48
         teos(k)        = 0. _d 0
      ENDDO

      IF ( equationOfState .EQ. 'LINEAR' ) THEN
         IF ( tAlpha .EQ. UNSET_RL ) tAlpha = 2.  _d -4
         IF ( sBeta  .EQ. UNSET_RL ) sBeta  = 7.4 _d -4
      ELSEIF ( equationOfState .EQ. 'POLY3' ) THEN
         OPEN(37,FILE='POLY3.COEFFS',STATUS='OLD',FORM='FORMATTED')
         READ(37,*) k
         IF (k.NE.Nr) THEN
            WRITE(msgBuf,'(A)')
     &           'ini_eos: attempt to read POLY3.COEFFS failed'
            CALL PRINT_ERROR( msgBuf , myThid )
            WRITE(msgBuf,'(A)')
     &           '           because bad # of levels in data'
            CALL PRINT_ERROR( msgBuf , myThid )
            STOP 'Bad data in POLY3.COEFFS'
         ENDIF
         READ(37,*) (eosRefT(k),eosRefS(k),eosSig0(k),k=1,Nr)
         DO k=1,Nr
            READ(37,*) (eosC(i,k),i=1,9)
         ENDDO
         CLOSE(37)

      ELSEIF ( equationOfState .EQ. 'JMD95Z'
     &    .OR. equationOfState .EQ. 'JMD95P'
     &    .OR. equationOfState .EQ. 'UNESCO' ) THEN
C
C     Jackett & McDougall (1995, JPO) equation of state
C     rho = R(salinity, potential temperature, pressure)
C     pressure needs to be available (from the previous
C     time step to linearize the problem)
C
         IF ( equationOfState .EQ. 'JMD95Z' .AND. usingPCoords ) THEN
            WRITE(msgBuf,'(A)')
     &      'ini_eos: equation of state ''JMD95Z'' should not'
            CALL PRINT_ERROR( msgBuf , myThid )
            WRITE(msgBuf,'(A)')
     &      '         be used together with pressure coordinates.'
            CALL PRINT_ERROR( msgBuf , myThid )
            WRITE(msgBuf,'(A)')
     &      '         Use only ''JMD95P'' with ''OCEANICP''.'
            CALL PRINT_ERROR( msgBuf , myThid )
            STOP 'ABNORMAL END: S/R INI_EOS'
         ENDIF

C     coefficients nonlinear equation of state in pressure coordinates for
C     1. density of fresh water at p = 0
         eosJMDCFw(1) =  999.842594 _d +00
         eosJMDCFw(2) =    6.793952 _d -02
         eosJMDCFw(3) = -  9.095290 _d -03
         eosJMDCFw(4) =    1.001685 _d -04
         eosJMDCFw(5) = -  1.120083 _d -06
         eosJMDCFw(6) =    6.536332 _d -09
C     2. density of sea water at p = 0
         eosJMDCSw(1) =    8.24493  _d -01
         eosJMDCSw(2) = -  4.0899   _d -03
         eosJMDCSw(3) =    7.6438   _d -05
         eosJMDCSw(4) = -  8.2467   _d -07
         eosJMDCSw(5) =    5.3875   _d -09
         eosJMDCSw(6) = -  5.72466  _d -03
         eosJMDCSw(7) =    1.0227   _d -04
         eosJMDCSw(8) = -  1.6546   _d -06
         eosJMDCSw(9) =    4.8314   _d -04
         IF ( equationOfState(1:5) .EQ. 'JMD95' ) THEN
C     3. secant bulk modulus K of fresh water at p = 0
            eosJMDCKFw(1) =   1.965933 _d +04
            eosJMDCKFw(2) =   1.444304 _d +02
            eosJMDCKFw(3) = - 1.706103 _d +00
            eosJMDCKFw(4) =   9.648704 _d -03
            eosJMDCKFw(5) = - 4.190253 _d -05
C     4. secant bulk modulus K of sea water at p = 0
            eosJMDCKSw(1) =   5.284855 _d +01
            eosJMDCKSw(2) = - 3.101089 _d -01
            eosJMDCKSw(3) =   6.283263 _d -03
            eosJMDCKSw(4) = - 5.084188 _d -05
            eosJMDCKSw(5) =   3.886640 _d -01
            eosJMDCKSw(6) =   9.085835 _d -03
            eosJMDCKSw(7) = - 4.619924 _d -04
C     5. secant bulk modulus K of sea water at p
            eosJMDCKP( 1) =   3.186519 _d +00
            eosJMDCKP( 2) =   2.212276 _d -02
            eosJMDCKP( 3) = - 2.984642 _d -04
            eosJMDCKP( 4) =   1.956415 _d -06
            eosJMDCKP( 5) =   6.704388 _d -03
            eosJMDCKP( 6) = - 1.847318 _d -04
            eosJMDCKP( 7) =   2.059331 _d -07
            eosJMDCKP( 8) =   1.480266 _d -04
            eosJMDCKP( 9) =   2.102898 _d -04
            eosJMDCKP(10) = - 1.202016 _d -05
            eosJMDCKP(11) =   1.394680 _d -07
            eosJMDCKP(12) = - 2.040237 _d -06
            eosJMDCKP(13) =   6.128773 _d -08
            eosJMDCKP(14) =   6.207323 _d -10

         ELSEIF ( equationOfState .EQ. 'UNESCO' ) THEN

            WRITE(msgBuf,'(a)')
     &           'WARNING WARNING WARNING WARNING WARNING WARNING '
            CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
     &           SQUEEZE_RIGHT , myThid )
            WRITE(msgBuf,'(a,a)')
     &           'WARNING: using the UNESCO formula with potential ',
     &           'temperature'
            CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
     &           SQUEEZE_RIGHT , myThid )
            WRITE(msgBuf,'(a)')
     &           'WARNING: can result in density errors of up to 5%'
            CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
     &           SQUEEZE_RIGHT , myThid )
            WRITE(msgBuf,'(a)')
     &           'WARNING: (see Jackett and McDougall 1995, JAOT)'
            CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
     &           SQUEEZE_RIGHT , myThid )
            WRITE(msgBuf,'(a)')
     &           'WARNING WARNING WARNING WARNING WARNING WARNING '
            CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
     &           SQUEEZE_RIGHT , myThid )

C     3. secant bulk modulus K of fresh water at p = 0
            eosJMDCKFw(1) =   1.965221 _d +04
            eosJMDCKFw(2) =   1.484206 _d +02
            eosJMDCKFw(3) = - 2.327105 _d +00
            eosJMDCKFw(4) =   1.360477 _d -02
            eosJMDCKFw(5) = - 5.155288 _d -05
C     4. secant bulk modulus K of sea water at p = 0
            eosJMDCKSw(1) =   5.46746  _d +01
            eosJMDCKSw(2) = - 0.603459 _d +00
            eosJMDCKSw(3) =   1.09987  _d -02
            eosJMDCKSw(4) = - 6.1670   _d -05
            eosJMDCKSw(5) =   7.944    _d -02
            eosJMDCKSw(6) =   1.6483   _d -02
            eosJMDCKSw(7) = - 5.3009   _d -04
C     5. secant bulk modulus K of sea water at p
            eosJMDCKP( 1) =   3.239908 _d +00
            eosJMDCKP( 2) =   1.43713  _d -03
            eosJMDCKP( 3) =   1.16092  _d -04
            eosJMDCKP( 4) = - 5.77905  _d -07
            eosJMDCKP( 5) =   2.2838   _d -03
            eosJMDCKP( 6) = - 1.0981   _d -05
            eosJMDCKP( 7) = - 1.6078   _d -06
            eosJMDCKP( 8) =   1.91075  _d -04
            eosJMDCKP( 9) =   8.50935  _d -05
            eosJMDCKP(10) = - 6.12293  _d -06
            eosJMDCKP(11) =   5.2787   _d -08
            eosJMDCKP(12) = - 9.9348   _d -07
            eosJMDCKP(13) =   2.0816   _d -08
            eosJMDCKP(14) =   9.1697   _d -10
         ELSE
            STOP 'INI_EOS: We should never reach this point!'
         ENDIF

      ELSEIF ( equationOfState .EQ. 'MDJWF' ) THEN

         eosMDJWFnum( 0) =  9.99843699 _d +02
         eosMDJWFnum( 1) =  7.35212840 _d +00
         eosMDJWFnum( 2) = -5.45928211 _d -02
         eosMDJWFnum( 3) =  3.98476704 _d -04
         eosMDJWFnum( 4) =  2.96938239 _d +00
         eosMDJWFnum( 5) = -7.23268813 _d -03
         eosMDJWFnum( 6) =  2.12382341 _d -03
         eosMDJWFnum( 7) =  1.04004591 _d -02
         eosMDJWFnum( 8) =  1.03970529 _d -07
         eosMDJWFnum( 9) =  5.18761880 _d -06
         eosMDJWFnum(10) = -3.24041825 _d -08
         eosMDJWFnum(11) = -1.23869360 _d -11


         eosMDJWFden( 0) =  1.00000000 _d +00
         eosMDJWFden( 1) =  7.28606739 _d -03
         eosMDJWFden( 2) = -4.60835542 _d -05
         eosMDJWFden( 3) =  3.68390573 _d -07
         eosMDJWFden( 4) =  1.80809186 _d -10
         eosMDJWFden( 5) =  2.14691708 _d -03
         eosMDJWFden( 6) = -9.27062484 _d -06
         eosMDJWFden( 7) = -1.78343643 _d -10
         eosMDJWFden( 8) =  4.76534122 _d -06
         eosMDJWFden( 9) =  1.63410736 _d -09
         eosMDJWFden(10) =  5.30848875 _d -06
         eosMDJWFden(11) = -3.03175128 _d -16
         eosMDJWFden(12) = -1.27934137 _d -17

      ELSEIF ( equationOfState .EQ. 'TEOS10' ) THEN

       teos(01) =  9.998420897506056 _d +02
       teos(02) =  2.839940833161907 _d  00
       teos(03) = -3.147759265588511 _d -02
       teos(04) =  1.181805545074306 _d -03
       teos(05) = -6.698001071123802 _d  00
       teos(06) = -2.986498947203215 _d -02
       teos(07) =  2.327859407479162 _d -04
       teos(08) = -3.988822378968490 _d -02
       teos(09) =  5.095422573880500 _d -04
       teos(10) = -1.426984671633621 _d -05
       teos(11) =  1.645039373682922 _d -07
       teos(12) = -2.233269627352527 _d -02
       teos(13) = -3.436090079851880 _d -04
       teos(14) =  3.726050720345733 _d -06
       teos(15) = -1.806789763745328 _d -04
       teos(16) =  6.876837219536232 _d -07
       teos(17) = -3.087032500374211 _d -07
       teos(18) = -1.988366587925593 _d -08
       teos(19) = -1.061519070296458 _d -11
       teos(20) =  1.550932729220080 _d -10
       teos(21) =  1.000000000000000 _d  00
       teos(22) =  2.775927747785646 _d -03
       teos(23) = -2.349607444135925 _d -05
       teos(24) =  1.119513357486743 _d -06
       teos(25) =  6.743689325042773 _d -10
       teos(26) = -7.521448093615448 _d -03
       teos(27) = -2.764306979894411 _d -05
       teos(28) =  1.262937315098546 _d -07
       teos(29) =  9.527875081696435 _d -10
       teos(30) = -1.811147201949891 _d -11
       teos(31) = -3.303308871386421 _d -05
       teos(32) =  3.801564588876298 _d -07
       teos(33) = -7.672876869259043 _d -09
       teos(34) = -4.634182341116144 _d -11
       teos(35) =  2.681097235569143 _d -12
       teos(36) =  5.419326551148740 _d -06
       teos(37) = -2.742185394906099 _d -05
       teos(38) = -3.212746477974189 _d -07
       teos(39) =  3.191413910561627 _d -09
       teos(40) = -1.931012931541776 _d -12
       teos(41) = -1.105097577149576 _d -07
       teos(42) =  6.211426728363857 _d -10
       teos(43) = -1.119011592875110 _d -10
       teos(44) = -1.941660213148725 _d -11
       teos(45) = -1.864826425365600 _d -14
       teos(46) =  1.119522344879478 _d -14
       teos(47) = -1.200507748551599 _d -15
       teos(48) =  6.057902487546866 _d -17 

      ELSEIF( equationOfState .EQ. 'IDEALG' ) THEN

      ELSE

         WRITE(msgbuf,'(3A)') ' INI_EOS: equationOfState = "',
     &        equationOfState,'"'
         CALL PRINT_ERROR( msgbuf, myThid )
         STOP 'ABNORMAL END: S/R INI_EOS'

      ENDIF

C--   Check EOS initialisation:

      CALL EOS_CHECK( myThid )

      _END_MASTER( myThid )
      _BARRIER

      RETURN
      END


CBOP C !ROUTINE: EOS_CHECK C !INTERFACE: SUBROUTINE EOS_CHECK( myThid ) C !DESCRIPTION: \bv C *==========================================================* C | SUBROUTINE EOS_CHECK C | o check the equation of state. C *==========================================================* C \ev C !USES: IMPLICIT NONE #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "EOS.h" #include "GRID.h" #include "DYNVARS.h" C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == C myThid :: Number of this instance of EOS_CHECK INTEGER myThid #ifdef INCLUDE_EOS_CHECK C !LOCAL VARIABLES: C == Local variables == C bi,bj - Loop counters C i,j,k INTEGER bi, bj INTEGER iMin, iMax, jMin, jMax INTEGER i, j, k _RL tFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL sFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL pFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) _RL rhoLoc (1-Olx:sNx+Olx,1-Oly:sNy+Oly) _RL bulkMod(1-Olx:sNx+Olx,1-Oly:sNy+Oly) INTEGER ncheck, kcheck PARAMETER ( ncheck = 20 ) _RL tLoc(ncheck), ptLoc(ncheck), sLoc(ncheck), pLoc(ncheck) _RL rLoc(ncheck), bLoc(ncheck) _RS mskSave _RS rC_Save CHARACTER*(MAX_LEN_MBUF) msgBuf DATA tLoc & /3.25905152915860 _d 0, 20.38687090048638 _d 0, & 25.44820830309568 _d 0, 20.17368557065936 _d 0, & 13.43397459640398 _d 0, & 5. _d 0, 25. _d 0, & 5. _d 0, 25. _d 0, & 5. _d 0, 25. _d 0, & 5. _d 0, 25. _d 0, & 5. _d 0, 25. _d 0, & 5. _d 0, 25. _d 0, & 5. _d 0, 25. _d 0, & 5. _d 0/ & ptLoc & /3. _d 0, 20. _d 0, & 25. _d 0, 20. _d 0, & 12. _d 0, & 5. _d 0, 25. _d 0, & 5. _d 0, 25. _d 0, & 4.03692566635316 _d 0, 22.84661726775120 _d 0, & 3.62720389416752 _d 0, 22.62420229124846 _d 0, & 19.5130 _d 0, 3.5588 _d 0, & 1.8157 _d 0, 1.3434 _d 0, & 1.1583 _d 0, 1.0518 _d 0, & 1.0073 _d 0/ & sLoc & /35.5 _d 0, 35. _d 0, & 35.0 _d 0, 20. _d 0, & 40.0 _d 0, & 0. _d 0, 0. _d 0, & 35. _d 0, 35. _d 0, & 0. _d 0, 0. _d 0, & 35. _d 0, 35. _d 0, & 34.7392 _d 0, 34.4652 _d 0, & 34.7738 _d 0, 34.8435 _d 0, & 34.8637 _d 0, 34.8739 _d 0, 34.8776 _d 0/ & pLoc & /300. _d 5, 200. _d 5, & 200. _d 5, 100. _d 5, & 800. _d 5, & 0. _d 0, 0. _d 0, & 0. _d 0, 0. _d 0, & 1000. _d 5, 1000. _d 5, & 1000. _d 5, 1000. _d 5, & 0. _d 0, 1010. _d 4, & 2025. _d 4, 3045. _d 4, & 4069. _d 4, 5098. _d 4, & 6131. _d 4/ DATA rLoc & /1041.83267 _d 0, 1033.213387 _d 0, & 1031.654229 _d 0, 1017.726743 _d 0, & 1062.928258 _d 0, & 999.96675 _d 0, 997.04796 _d 0, & 1027.67547 _d 0, 1023.34306 _d 0, & 1044.12802 _d 0, 1037.90204 _d 0, & 1069.48914 _d 0, 1062.53817 _d 0, & 1024.571477039354932 _d 0, 1031.937207908966911 _d 0, & 1037.002326523349893 _d 0, 1041.668901630106348 _d 0, & 1046.179673478751511 _d 0, 1050.591667083023594 _d 0, & 1054.901835905235885 _d 0/ & bLoc & / -1.00000 _d 0, -1.00000 _d 0, & -1.00000 _d 0, -1.00000 _d 0, & -1.00000 _d 0, & 20337.80375 _d 0, 22100.72106 _d 0, & 22185.93358 _d 0, 23726.34949 _d 0, & 23643.52599 _d 0, 25405.09717 _d 0, & 25577.49819 _d 0, 27108.94504 _d 0, & -1.00000 _d 0, -1.00000 _d 0, & -1.00000 _d 0, -1.00000 _d 0, & -1.00000 _d 0, -1.00000 _d 0, & -1.00000 _d 0/ bi = 1 bj = 1 k = 1 iMin = 1 iMax = 1 jMin = 1 jMax = 1 i = 1 j = 1 IF ( equationOfState.NE.'LINEAR' & .AND. equationOfState.NE.'POLY3' & .AND. equationOfState.NE.'IDEALG' ) THEN C check nonlinear EOS WRITE(msgBuf,'(A,A)') & 'EOS_CHECK: Check the equation of state: Type ', & equationOfState CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) C- to get the right pressure out of S/R PRESSURE_FOR_EOS: mskSave = maskC(i,j,k,bi,bj) rC_Save = rC(k) maskC(i,j,k,bi,bj) = 1. totPhiHyd(i,j,k,bi,bj) = 0. C- + set rC accordingly DO kcheck = 1,ncheck IF ( usingZCoords ) THEN rC(k) = -pLoc(kcheck)*recip_rhoConst*recip_gravity ELSE rC(k) = pLoc(kcheck) ENDIF IF ( equationOfState.NE.'UNESCO' ) THEN tFld(i,j) = ptLoc(kcheck) ELSE tFld(i,j) = tLoc(kcheck) ENDIF sFld(i,j) = sLoc(kcheck) pFld(i,j) = pLoc(kcheck) rhoLoc(i,j) = 0. _d 0 CALL FIND_RHO_2D( I iMin, iMax, jMin, jMax, k, I tFld, sFld, O rhoLoc, I k, bi, bj, myThid ) IF ( equationOfState.EQ.'MDJWF' .OR. & equationOfState.EQ.'TEOS10' ) THEN bulkMod(i,j) = -1. _d 0 ELSE CALL FIND_BULKMOD( I iMin, iMax, jMin, jMax, I pFld, tFld, sFld, O bulkMod, I myThid ) ENDIF IF ( kcheck .EQ. 1 ) THEN WRITE(msgBuf,'(A)') & 'EOS_CHECK: check values for eosType=JMD95:' CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) ELSEIF ( kcheck .EQ. 2 ) THEN WRITE(msgBuf,'(A)') & 'EOS_CHECK: check values for eosType=MDJWF:' CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) ELSEIF ( kcheck .EQ. 6 ) THEN WRITE(msgBuf,'(A)') & 'EOS_CHECK: check values for eosType=UNESCO:' CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) ELSEIF ( kcheck .EQ. 14 ) THEN WRITE(msgBuf,'(A)') & 'EOS_CHECK: check values for eosType=TEOS10:' CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) ENDIF WRITE(msgBuf,'(2(A,F4.1),A,F5.0,2A,F10.5,1X,F11.5)') & 'rho(', sFld(i,j), ' PSU,', & tFld(i,j), ' degC,', & pLoc(kcheck)*SItoBar, ' bar)', & ' = ', rLoc(kcheck), bLoc(kcheck) CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) WRITE(msgBuf,'(A,F10.5,1X,F11.5)') & ' rho(find_rho_2d) = ', & rhoLoc(i,j)+rhoConst, bulkMod(i,j) CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) CALL FIND_RHO_SCALAR( tFld(i,j), sLoc(kcheck), & pLoc(kcheck), rhoLoc(i,j), myThid ) WRITE(msgBuf,'(A,F10.5,1X,F11.5)') & ' rho(find_rho_scalar) = ', & rhoLoc(i,j) CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) ENDDO C end check nonlinear EOS maskC(i,j,k,bi,bj) = mskSave rC(k) = rC_Save WRITE(msgBuf,'(A)') 'EOS_CHECK: Done' CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT , myThid ) ENDIF #endif /* INCLUDE_EOS_CHECK */ RETURN END