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z_woa_tracer.f
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PROGRAM TSZINT
USE MOD_ZA ! HYCOM array I/O interface
USE netcdf ! NetCDF fortran 90 interface
IMPLICIT NONE
C
C DEFINE INPUT TRACER CLIMATOLOGY GRID.
C
C SETUP FOR 1.0 DEGREE WOA2001 (Levitus) GLOBAL CLIMATOLOGY.
C
INTEGER IWI,JWI
REAL*4 XFIN,YFIN,DXIN,DYIN
PARAMETER (IWI=360, JWI=180)
PARAMETER (XFIN=0.5, YFIN=-89.5, DXIN=1.0, DYIN=1.0)
C
C CLIM ARRAYS.
C
INTEGER, ALLOCATABLE :: MSK(:,:)
REAL*4, ALLOCATABLE :: PLON(:,:),PLAT(:,:),XAF(:,:),YAF(:,:)
REAL*4, ALLOCATABLE :: TM(:,:),ZLEV(:)
C
INTEGER KWI
REAL*4 XAMAX,XAMIN,YAMAX,YAMIN
REAL*4 TSEAIN(IWI,JWI)
CHARACTER PREAMBL(5)*79
C
C NETCDF I/O VARIABLES.
C
CHARACTER*(256) CFILET
INTEGER ncFIDt,ncVIDt,ncDIDt
C
C INTERPOLATION ARRAYS.
C
INTEGER IBD(4)
REAL*4 TSEAI(IWI+4,JWI+4)
REAL*4 FXI(IWI+4),FYI(JWI+4),
+ WQSEA3(IWI+4,JWI+4,3),WK(3*(IWI+JWI+8)+1)
C
C NAMELIST.
C
INTEGER JPR
COMMON/NPROCS/ JPR
SAVE /NPROCS/
C
CHARACTER*40 CTITLE
CHARACTER*21 CTYPE
NAMELIST/AFTITL/ CTITLE,CTYPE
INTEGER INTERP,MONTH,ITEST,JTEST
NAMELIST/AFFLAG/ INTERP,MONTH,ITEST,JTEST,JPR
C
C**********
C*
C 1) FROM UNFORMATTED Sig0-T OR Sig0-S OR T-S DATA ON ITS NATIVE GRID,
C CREATE A FORMATTED MODEL GRID CLIM FILE SUITABLE FOR INPUT TO THE
C HYCOM ISOPYCNAL CLIMATOLOGY GENERATOR OVER THE GIVEN REGION.
C
C INTERPOLATION IS EITHER PIECEWISE BILINEAR OR CUBIC SPLINE.
C
C 2) PARAMETERS:
C
C NATIVE CLIM GRID SPECIFICATION, SEE (4):
C
C IWI = 1ST DIMENSION OF CLIM GRID
C JWI = 2ND DIMENSION OF CLIM GRID
C JWI = 3RD DIMENSION OF CLIM GRID (NUMBER OF Z-LEVELS)
C XFIN = LONGITUDE OF 1ST CLIM GRID POINT
C YFIN = LATITUDE OF 1ST CLIM GRID POINT
C DXIN = CLIM LONGITUDINAL GRID SPACING
C DYIN = CLIM LATITUDINAL GRID SPACING
C
C 3) NAMELIST INPUT:
C
C /AFTITL/
C CTITLE - ONE (40-CHARACTER) LINE TITLE.
C CTYPE - ONE (21-CHARACTER) TRACER netCDF VARIABLE NAME.
C
C /AFFLAG/
C INTERP - INTERPOLATION FLAG.
C =0; PIECEWISE LINEAR
C =1; CUBIC SPLINE (DEFAULT)
C MONTH - MONTH OF CLIMATOLOGY (1 TO 12)
C ITEST - 1ST ARRAY INDEX FOR DIAGNOSTIC PRINTOUT
C =0; NO DIAGNOSTIC PRINTOUT
C JTEST - 2ND ARRAY INDEX FOR DIAGNOSTIC PRINTOUT
C =0; NO DIAGNOSTIC PRINTOUT
C
C 4) INPUT:
C ON UNIT 5: NAMELIST /AFTITL/, /AFTIME/
C netCDF NATIVE Tracer CLIM FILE (ENV.VAR. CDF_TRACER), SEE (5).
C OUTPUT:
C ON UNIT 10: UNFORMATTED MODEL CLIM FILE, SEE (6).
C
C 5) THE INPUT CLIM FIELDS, VIA NetCDF, ARE ON THE 'NATIVE' LAT-LON
C GRID, STARTING AT THE POINT 'XFIN' EAST AND 'YFIN' NORTH WITH
C 'YFIN' NORTH WITH GRIDSIZE 'DXIN' BY 'DYIN' DEGREES. THE
C INPUT ARRAY SIZE IS 'IWI' BY 'JWI', AND THERE ARE NO REPEATED
C NODES (EVEN FOR GLOBAL DATA SETS).
C
C ALL CLIMATOLOGY FIELDS MUST BE DEFINED AT EVERY GRID POINT,
C INCLUDING LAND AND BELOW THE OCEAN FLOOR.
C
C 6) THE OUTPUT CLIMS ARE AT EVERY GRID POINT OF THE MODEL'S 'P' GRID.
C ARRAY SIZE IS 'IDM' BY 'JDM'.
C
C 7) SEVERAL STATISTICS ARE WRITTEN OUT IN ORDER TO CHECK THE
C INTERPOLATION BETWEEN VARIOUS MACHINES. MIN, MAX, MEAN AND RMS
C OF THE ENTIRE BASIN ARE OUTPUT FOR (TM, SM, RM) FOR EACH
C RECORD. NOTE HOWEVER THAT THESE VALUES MAY NOT REPRESENT THE
C STATISTICS OF THE CLIMS AS SEEN BY THE MODEL, IF THE INPUT CLIM
C DATA HAS NON-REALISTIC VALUES OVER LAND. IT IS UP TO THE USER
C TO CHECK THE LOG FILES FOR CONSISTENCY BETWEEN MACHINES.
C
C 8) ALAN J. WALLCRAFT, PLANNING SYSTEMS INC., OCTOBER 1995.
C BASED ON EARILER VERSIONS BY SEVERAL AUTHORS.
C*
C**********
C
EXTERNAL LINEAR, AVERMS,MINMAX
C
REAL*4 ZERO,RADIAN
PARAMETER (ZERO=0.0, RADIAN=57.2957795)
REAL*8 DZERO,DTHIRD
PARAMETER (DZERO=0.D0,DTHIRD=1.D0/3.D0)
C
CHARACTER*80 CLINE
CHARACTER*40 CCNAME
INTEGER IUNIT,IWIT,JWIT,KWIT
REAL*4 XFINT,YFINT,DXINT,DYINT
REAL*4 HMINA,HMINB,HMAXA,HMAXB
C
INTEGER I,IWIX,J,KREC
REAL*4 XFD,YFD,DXD,DYD
REAL*4 XLIN,XFDX,XOV,YOU,
+ XMIN,XMAX,XAVE,XRMS
C
CHARACTER*11 CMONTH(12)
DATA CMONTH / ', January',
+ ', February',
+ ', March',
+ ', April',
+ ', May',
+ ', June',
+ ', July',
+ ', August',
+ ', September',
+ ', October',
+ ', November',
+ ', December' /
C
C --- MODEL ARRAYS.
C
CALL XCSPMD !define idm,jdm
ALLOCATE( MSK(IDM,JDM) )
ALLOCATE( PLON(IDM,JDM) )
ALLOCATE( PLAT(IDM,JDM) )
ALLOCATE( XAF(IDM,JDM) )
ALLOCATE( YAF(IDM,JDM) )
ALLOCATE( TM(IDM,JDM) )
C
C NAMELIST INPUT.
C
CALL ZHOPEN(6, 'FORMATTED', 'UNKNOWN', 0)
C
CTITLE = ' '
WRITE(6,*) 'READING /AFTITL/'
CALL ZHFLSH(6)
READ( 5,AFTITL)
WRITE(6,AFTITL)
C
INTERP = 1
MONTH = 1
ITEST = 0
JTEST = 0
JPR = 8
WRITE(6,*) 'READING /AFFLAG/'
CALL ZHFLSH(6)
READ( 5,AFFLAG)
WRITE(6,AFFLAG)
WRITE(6,*)
CALL ZHFLSH(6)
C
C GRID INPUT.
C
CALL ZAIOST
C
CALL ZHOPNC(21, 'regional.grid.b', 'FORMATTED', 'OLD', 0)
CALL ZAIOPF('regional.grid.a', 'OLD', 21)
C
READ(21,*) ! skip idm
READ(21,*) ! skip jdm
READ(21,*) ! skip mapflg
READ(21,'(A)') CLINE
I = INDEX(CLINE,'=')
READ (CLINE(I+1:),*) HMINB,HMAXB
CALL ZAIORD(PLON,MSK,.FALSE., HMINA,HMAXA, 21)
IF (ABS(HMINA-HMINB).GT.ABS(HMINB)*1.E-4 .OR.
& ABS(HMAXA-HMAXB).GT.ABS(HMAXB)*1.E-4 ) THEN
WRITE(6,'(/ a / a,1p3e14.6 / a,1p3e14.6 /)')
& 'error - .a and .b grid files not consistent (plon):',
& '.a,.b min = ',HMINA,HMINB,HMINA-HMINB,
& '.a,.b max = ',HMAXA,HMAXB,HMAXA-HMAXB
CALL ZHFLSH(6)
STOP
ENDIF
C
READ(21,'(A)') CLINE
I = INDEX(CLINE,'=')
READ (CLINE(I+1:),*) HMINB,HMAXB
CALL ZAIORD(PLAT,MSK,.FALSE., HMINA,HMAXA, 21)
IF (ABS(HMINA-HMINB).GT.ABS(HMINB)*1.E-4 .OR.
& ABS(HMAXA-HMAXB).GT.ABS(HMAXB)*1.E-4 ) THEN
WRITE(6,'(/ a / a,1p3e14.6 / a,1p3e14.6 /)')
& 'error - .a and .b grid files not consistent (plat):',
& '.a,.b min = ',HMINA,HMINB,HMINA-HMINB,
& '.a,.b max = ',HMAXA,HMAXB,HMAXA-HMAXB
CALL ZHFLSH(6)
STOP
ENDIF
C
CLOSE(UNIT=21)
CALL ZAIOCL(21)
C
C INITIALIZE OUTPUT.
C
CTITLE = trim(CTITLE) // CMONTH(MONTH)
WRITE(6,6000) 'OUTPUT:',CTITLE
CALL ZHFLSH(6)
C
CALL ZAIOPN('NEW', 10)
CALL ZAIOPN('NEW', 11)
CALL ZAIOPN('NEW', 12)
C
CALL ZHOPEN(10, 'FORMATTED', 'NEW', 0)
CALL ZHOPEN(11, 'FORMATTED', 'NEW', 0)
CALL ZHOPEN(12, 'FORMATTED', 'NEW', 0)
C
PREAMBL(1) = CTITLE
PREAMBL(2) = ' '
PREAMBL(3) = ' '
PREAMBL(4) = ' '
WRITE(PREAMBL(5),'(A,2I5)')
+ 'i/jdm =',
+ IDM,JDM
WRITE(10,4101) PREAMBL
C
WRITE(6,*)
WRITE(6, 4101) PREAMBL
WRITE(6,*)
C
C INITIALIZE CLIMS.
C
CALL GETENV('CDF_TRACER',CFILET)
WRITE(6,*)
WRITE(6,*) 'CDF_TRACER = ',trim(CFILET)
CALL ZHFLSH(6)
! open NetCDF file
call ncheck(nf90_open(trim(CFILET), nf90_nowrite, ncFIDt))
! get KWI
WRITE(6,*) 'nf90_inq_dimid - ', 'Depth'
CALL ZHFLSH(6)
call ncheck(nf90_inq_dimid( ncFIDt, 'Depth',ncDIDt))
call ncheck(nf90_inquire_dimension(ncFIDt, ncDIDt,
+ len=kwi))
WRITE(6,*) 'KWI = ',KWI
CALL ZHFLSH(6)
! get ZLEV
ALLOCATE( ZLEV(KWI) )
WRITE(6,*) 'nf90_inq_varid - ','Depth'
CALL ZHFLSH(6)
call ncheck(nf90_inq_varid(ncFIDt,'Depth',ncVIDt))
call ncheck(nf90_get_var( ncFIDt, ncVIDt,ZLEV(:)))
ZLEV(:) = ABS(ZLEV(:)) !positive downwards
! inquire variable ID
WRITE(6,*) 'nf90_inq_varid - ',trim(ctype)
CALL ZHFLSH(6)
call ncheck(nf90_inq_varid(ncFIDt,trim(ctype),ncVIDt))
C
C DEFINE THE GRID COORDINATES.
C
IF (IWI*DXIN.GE.359.9) THEN
IF (ABS(IWI * DXIN - 360.0) .GT. 0.01) THEN
WRITE(6,9050)
CALL ZHFLSH(6)
STOP
ENDIF
IWIX = IWI + 1
IBD(1) = 3
IBD(2) = 3
IBD(3) = 2
IBD(4) = 2
ELSE
IWIX = IWI
IBD(1) = 2
IBD(2) = 2
IBD(3) = 2
IBD(4) = 2
ENDIF
C
C CONVERT HYCOM LON,LAT TO CLIMATOLOGY ARRAY COORDS.
C
XLIN = XFIN + (IWIX-1)*DXIN
XAMIN = 2*IWI
XAMAX = 0
DO J= 1,JDM
DO I= 1,IDM
XOV = PLON(I,J)
IF (XOV.LT.XFIN) THEN
XOV = XOV + 360.0
ELSEIF (XOV.GE.XLIN) THEN
XOV = XOV - 360.0
ENDIF
C
XAF(I,J) = 3.0 + (XOV - XFIN)/DXIN
C
IF (MOD(J,100).EQ.1 .OR. J.EQ.JDM) THEN
IF (MOD(I,10).EQ.1 .OR. I.EQ.IDM) THEN
WRITE(6,'("I,J,LONV,XAF =",2I5,2F10.3)') I,J,XOV,XAF(I,J)
ENDIF
ENDIF
XAMIN = MIN( XAMIN, XAF(I,J) )
XAMAX = MAX( XAMAX, XAF(I,J) )
ENDDO
ENDDO
C
YAMIN = 2*JWI
YAMAX = 0
DO I= 1,IDM
DO J= 1,JDM
YOU = PLAT(I,J)
C
YAF(I,J) = 3.0 + (YOU - YFIN)/DYIN
C
IF (MOD(I,100).EQ.1 .OR. I.EQ.IDM) THEN
IF (MOD(J,10).EQ.1 .OR. J.EQ.JDM) THEN
WRITE(6,'("I,J,LATU,YAF =",2I5,2F10.3)') I,J,YOU,YAF(I,J)
ENDIF
ENDIF
YAMIN = MIN( YAMIN, YAF(I,J) )
YAMAX = MAX( YAMAX, YAF(I,J) )
ENDDO
ENDDO
C
WRITE(6,6200) XAMIN,XAMAX,YAMIN,YAMAX
CALL ZHFLSH(6)
C
C CHECK THAT THE INTERPOLATION IS 'SAFE',
C
IF (INT(XAMIN).LT.3 .OR. INT(XAMAX).GT.IWI+2 .OR.
+ INT(YAMIN).LT.3 .OR. INT(YAMAX).GT.JWI+2 ) THEN
WRITE(6,9150)
CALL ZHFLSH(6)
STOP
ENDIF
C
C PROCESS ALL THE CLIM RECORDS.
C
DO 810 KREC= 1,KWI
C
C READ THE INPUT CLIMS.
C
call ncheck(nf90_get_var(ncFIDt,ncVIDt,
& TSEAIN(:,:),
& (/ 1,1,KREC /) ))
C
C COPY INTO THE (LARGER) INTERPOLATION ARRAYS.
C
DO 310 J= 1,JWI
DO 311 I= 1,IWI
TSEAI(I+2,J+2) = TSEAIN(I,J)
311 CONTINUE
310 CONTINUE
C
C FILL IN THE PADDING AREA AS NECESSARY.
C
IF (INT(XAMAX).GE.IWI+1) THEN
IF (IWIX.GT.IWI) THEN
DO 320 J= 3,JWI+2
TSEAI(IWI+3,J) = TSEAI(3,J)
TSEAI(IWI+4,J) = TSEAI(4,J)
320 CONTINUE
ELSE
DO 325 J= 3,JWI+2
TSEAI(IWI+3,J) = 2.0*TSEAI(IWI+2,J) - TSEAI(IWI+1,J)
TSEAI(IWI+4,J) = 3.0*TSEAI(IWI+2,J) - 2.0*TSEAI(IWI+1,J)
325 CONTINUE
ENDIF
ENDIF
IF (INT(XAMIN).LE.3) THEN
IF (IWIX.GT.IWI) THEN
DO 330 J= 3,JWI+2
TSEAI(1,J) = TSEAI(IWI+1,J)
TSEAI(2,J) = TSEAI(IWI+2,J)
330 CONTINUE
ELSE
DO 335 J= 3,JWI+2
TSEAI(1,J) = 3.0*TSEAI(3,J) - 2.0*TSEAI(4,J)
TSEAI(2,J) = 2.0*TSEAI(3,J) - TSEAI(4,J)
335 CONTINUE
ENDIF
ENDIF
IF (INT(YAMAX).GE.JWI+1) THEN
DO 340 I= 1,IWI+4
TSEAI(I,JWI+3) = 2.0*TSEAI(I,JWI+2) - TSEAI(I,JWI+1)
TSEAI(I,JWI+4) = 3.0*TSEAI(I,JWI+2) - 2.0*TSEAI(I,JWI+1)
340 CONTINUE
ENDIF
IF (INT(YAMIN).LE.3) THEN
DO 350 I= 1,IWI+4
TSEAI(I,1) = 3.0*TSEAI(I,3) - 2.0*TSEAI(I,4)
TSEAI(I,2) = 2.0*TSEAI(I,3) - TSEAI(I,4)
350 CONTINUE
ENDIF
C
C INTERPOLATE FROM NATIVE TO MODEL CLIM GRIDS.
C
IF (INTERP.EQ.0) THEN
CALL LINEAR(TM,XAF,YAF,IDM,IDM,JDM,
+ TSEAI,IWI+4,IWI+4,JWI+4)
ELSE
CALL CUBSPL(TM,XAF,YAF,IDM,IDM,JDM,
+ TSEAI,IWI+4,IWI+4,JWI+4, IBD, FXI,FYI,WQSEA3,WK)
ENDIF
C
C WRITE OUT STATISTICS.
C
CALL MINMAX(TM,IDM,JDM, XMIN,XMAX)
CALL AVERMS(TM,IDM,JDM, XAVE,XRMS)
WRITE(6,8100) 'TSEA', XMIN,XMAX,XAVE,XRMS
C
C DIAGNOSTIC PRINTOUT.
C
IF (MIN(ITEST,JTEST).GT.0) THEN
WRITE(6,*)
WRITE(6,'(A,2I5,I3,A,F8.2,A,F6.2)')
+ 'I,J,K =',ITEST,JTEST,KREC,
+ ' ZLEV =',ZLEV(KREC),
+ ' T =',TM(ITEST,JTEST)
WRITE(6,*)
CALL ZHFLSH(6)
ENDIF
C
C WRITE OUT HYCOM CLIMS.
C
CALL ZAIOWR(TM,MSK,.FALSE., XMIN,XMAX, 10, .FALSE.)
WRITE(10,4102) TRIM(CTYPE),ZLEV(KREC),XMIN,XMAX
C
WRITE(6,6300) KREC,ZLEV(KREC)
CALL ZHFLSH(6)
810 CONTINUE
C
CALL ZAIOCL(10)
CLOSE( UNIT=10)
C
C SUMMARY.
C
WRITE(6,6400) KWI
CALL ZHFLSH(6)
STOP
C
4101 FORMAT(A79)
4102 FORMAT(A,': depth,range = ',F7.1,1P2E16.7)
6000 FORMAT(1X,A,2X,A40 //)
6200 FORMAT(/ 1X,'MIN,MAX I COORDS = ',F8.2,',',F8.2
+ / 1X,'MIN,MAX J COORDS = ',F8.2,',',F8.2 /)
6300 FORMAT(10X,'WRITING CLIM RECORD',I3,' ZLEV =',F7.1 /)
6400 FORMAT(I5,' LEVEL CLIMATOLOGY COMPLETED.')
8100 FORMAT(1X,A,': MIN=',F13.8,' MAX=',F13.8,
+ ' AVE=',F13.8,' RMS=',F13.8)
9000 FORMAT(// 20X,'***** ERROR ON UNIT -',I3,
+ ' INPUT DOES NOT AGREE WITH PARAMETERS *****' //
+ 1X,'IWI,JWI,KWI = ',I5, I10, I4 /
+ 1X,'XFIN,YFIN = ',F8.2,F10.2 /
+ 1X,'DXIN,DYIN = ',F9.3, F9.3 //)
9050 FORMAT(// 20X,'********** ERROR - ',
+ 'INPUT IS GLOBAL AND IWI*DXIN IS NOT 360 DEGREES ****' //)
9150 FORMAT(// 20X,'********** ERROR - ',
+ 'THE OUTPUT GRID IS NOT INSIDE THE INPUT GRID **********' //)
C END OF PROGRAM WNDINT.
END
subroutine ncheck(status)
use netcdf ! NetCDF fortran 90 interface
implicit none
c
integer, intent(in) :: status
c
c subroutine to handle NetCDF errors
c
if (status /= nf90_noerr) then
write(6,'(/a)') 'error from NetCDF library'
write(6,'(a/)') trim(nf90_strerror(status))
call zhflsh(6)
stop
end if
end subroutine ncheck