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C Copyright 1981-2016 ECMWF
C
C Licensed under the GNU Lesser General Public License which
C incorporates the terms and conditions of version 3 of the GNU
C General Public License.
C See LICENSE and gpl-3.0.txt for details.
C
PROGRAM BUFR
C
C**** *BUFR*
C
C
C PURPOSE.
C --------
C EXAMPLE OF USING BUFR UNPACKING/PACKING SOFTWARE.
C
C
C** INTERFACE.
C ----------
C
C NONE.
C
C METHOD.
C -------
C
C NONE.
C
C
C EXTERNALS.
C ----------
C
C CALL BUSEL2
C CALL BUFREX
C CALL BUFREN
C CALL BUPRS0
C CALL BUPRS1
C CALL BUPRS2
C CALL BUPRS3
C CALL BUPRT
C CALL BUUKEY
C
C REFERENCE.
C ----------
C
C NONE.
C
C AUTHOR.
C -------
C
C M. DRAGOSAVAC *ECMWF* 15/09/87.
C
C
C MODIFICATIONS.
C --------------
C
C NONE.
C
C
IMPLICIT LOGICAL(L,O,G), CHARACTER*8(C,H,Y)
C
PARAMETER(JSUP = 9,JSEC0= 3,JSEC1= 40,JSEC2=4096 ,JSEC3= 4,
1 JSEC4= 2,JELEM=160000,JSUBS=400,JCVAL=150 ,JBUFL=300000,
2 JBPW = 32,JTAB =3000,JCTAB=120,JCTST=1800,JCTEXT=1200,
3 JWORK=4096000,JKEY=46,JBYTE=440000)
C
PARAMETER (KELEM=160000)
PARAMETER (KVALS=4096000)
C
DIMENSION KBUFF(JBUFL)
DIMENSION KBUFR(JBUFL)
DIMENSION KSUP(JSUP) ,KSEC0(JSEC0),KSEC1(JSEC1)
DIMENSION KSEC2(JSEC2),KSEC3(JSEC3),KSEC4(JSEC4)
DIMENSION KEY (JKEY),KREQ(2)
DIMENSION NREQUEST(2)
C
REAL*8 VALUES(KVALS),VALUE(KVALS)
DIMENSION KTDLST(JELEM),KTDEXP(JELEM),KRQ(KELEM)
REAL*8 RQV(KELEM)
DIMENSION KDATA(200),KBOXR(JELEM*4)
REAL*8 VALS(KVALS)
C
CHARACTER*256 CF,COUT,CARG(4)
CHARACTER*64 CNAMES(KELEM),CBOXN(JELEM*4)
CHARACTER*24 CUNITS(KELEM),CBOXU(JELEM*4)
CHARACTER*80 CVALS(kelem)
CHARACTER*80 CVAL(kelem)
CHARACTER*80 YENC
REAL*8 RVIND
REAL*8 EPS
C
C ------------------------------------------------------------------
C* 1. INITIALIZE CONSTANTS AND VARIABLES.
C -----------------------------------
100 CONTINUE
C
C MISSING VALUE INDICATOR
C
NBYTPW=JBPW/8
RVIND=1.7E38
NVIND=2147483647
IOBS=0
EPS=10.E-10
NPACK=0
IYEAR=NVIND
N=0
NCOM=0
OO=.FALSE.
C
C
C
C GET INPUT AND OUTPUT FILE NAME.
C
NARG=IARGC()
C
C
DO 104 J=1,NARG
CALL GETARG(J,CARG(J))
104 CONTINUE
II=0
IO=0
DO 105 J=1,NARG
IF(CARG(J).EQ.'-i') THEN
IN=J
ELSEIF(CARG(J).EQ.'-o') THEN
IO=J
END IF
105 CONTINUE
IF(IN.EQ.0) THEN
PRINT*,'USAGE -- decode_bufr -i infile'
STOP
END IF
IF(IO.EQ.0.and.IN.EQ.0) THEN
PRINT*,'USAGE -- decode_bufr -i infile -o outfile'
STOP
END IF
C
IF(IO.NE.0) COUT=CARG(IO+1)
C
IF(IO.LT.IN) THEN
IST=IN+1
IEND=NARG
ELSE
IST=IN+1
IEND=IO-1
END IF
C
C
IF(IO.NE.0) THEN
JJ=INDEX(COUT,' ')
JJ=JJ-1
CALL PBOPEN(IUNIT1,COUT(1:JJ),'W',IRET)
IF(IRET.EQ.-1) STOP 'OPEN FAILED ON BUFR.DAT'
IF(IRET.EQ.-2) STOP 'INVALID FILE NAME'
IF(IRET.EQ.-3) STOP 'INVALID OPEN MODE SPECIFIED'
END IF
C
DO 101 II=IST,IEND
CF=CARG(II)
ILN=INDEX(CF,' ')
ILN=ILN-1
KRQL=0
NR=0
KREQ(1)=0
KREQ(2)=0
DO 103 I=1,KELEM
RQV(I)=RVIND
KRQ(I)=NVIND
103 CONTINUE
C
C* 1.2 OPEN FILE CONTAINING BUFR DATA.
C -------------------------------
120 CONTINUE
C
IRET=0
CALL PBOPEN(IUNIT,CF(1:ILN),'R',IRET)
IF(IRET.EQ.-1) STOP 'OPEN FAILED'
IF(IRET.EQ.-2) STOP 'INVALID FILE NAME'
IF(IRET.EQ.-3) STOP 'INVALID OPEN MODE SPECIFIED'
C
IF(IO.NE.0) THEN
CALL PBOPEN(IUNIT1,COUT(1:JJ),'W',IRET)
IF(IRET.EQ.-1) STOP 'OPEN FAILED ON BUFR.DAT'
IF(IRET.EQ.-2) STOP 'INVALID FILE NAME'
IF(IRET.EQ.-3) STOP 'INVALID OPEN MODE SPECIFIED'
END IF
C
C
C
C -----------------------------------------------------------------
C* 2. SET REQUEST FOR EXPANSION.
C --------------------------
200 CONTINUE
C
OPRT=.FALSE.
OENC=.FALSE.
WRITE(*,'(A,$)') ' DO YOU WANT TO PRINT( Y/N ) : '
READ (*,'(A)') YENC
IF(YENC(1:1).EQ.'Y'.OR.YENC(1:1).EQ.'y') THEN
OPRT=.TRUE.
END IF
ICODE=0
WRITE(*,'(A,$)') ' CODE TABLES TO BE PRINTED ( Y/N ) : '
READ (*,'(A)') YCODC
IF(YCODC(1:1).EQ.'Y'.OR.YCODC(1:1).EQ.'y') THEN
ICODE=1
END IF
WRITE(*,'(A,$)') ' DO YOU WANT ENCODING( Y/N ) : '
READ (*,'(A)') YENC
IF(YENC(1:1).EQ.'Y'.OR.YENC(1:1).EQ.'y') THEN
OENC=.TRUE.
WRITE(*,'(A,$)') ' NUMBER OF SUBSETS TO PACK : '
READ(*,'(BN,I4)') NCOM
OCOMP=.FALSE.
WRITE(*,'(A,$)') ' DO YOU WANT COMPRESSION( Y/N ) : '
READ (*,'(A)') YCOMP
IF(YCOMP(1:1).EQ.'Y'.OR.YCOMP(1:1).EQ.'y') OCOMP=.TRUE.
END IF
WRITE(*,'(A,$)') ' RECORD NUMBER TO START FROM : '
READ(*,'(BN,I6)') NR
C
201 CONTINUE
C
WRITE(*,'(A,$)') ' REQUESTED ELEMENT : '
READ(*,'(BN,I6)') IEL
WRITE(*,'(A,$)') ' REQUESTED VALUE : '
READ(*,'(BN,F12.2)') VAL
IF(IEL.EQ.0) THEN
KRQL=J
ELSE
J=J+1
KRQ(J)=IEL
RQV(J)=VAL
IF(VAL.EQ.0.) RQV(J)=RVIND
GO TO 201
END IF
C
WRITE(*,'(A,$)') ' REQUESTED FLAG 1 : '
READ(*,'(BN,I6)') KREQ(1)
C
WRITE(*,'(A,$)') ' REQUESTED FLAG 2 : '
READ(*,'(BN,I6)') KREQ(2)
C
WRITE(*,'(A,$)') ' DO YOU WANT TO PRINT SECTION 0-3( Y/N ) : '
READ (*,'(A,$)') YENC
OSEC3=.FALSE.
IF(YENC(1:1).EQ.'Y'.OR.YENC(1:1).EQ.'y') OSEC3=.TRUE.
C
C* 2.1 SET REQUEST FOR PARTIAL EXPANSION.
C ----------------------------------
210 CONTINUE
C
c IERR=0
CALL BUSRQ(KREQ,KRQL,KRQ,RQV,IERR)
C
C SET VARIABLE TO PACK BIG VALUES AS MISSING VALUE INDICATOR
C
KPMISS=1
KPRUS=0
KOKEY=0
CALL BUPRQ(KPMISS,KPRUS,KOKEY)
C
C -----------------------------------------------------------------
IF(NCOM.NE.0) THEN
KEL1=KVALS/NCOM
IF(KEL1.GT.KELEM) KEL1=KELEM
END IF
C
C* 3. READ BUFR MESSAGE.
C ------------------
300 CONTINUE
C
IERR=0
KBUFL=0
C
CALL PBBUFR(IUNIT,KBUFF,JBYTE*4,KBUFL,IERR)
IF(IERR.EQ.-1) THEN
IF(NPACK.NE.0) GO TO 600
PRINT*,'NUMBER OF SUBSETS ',IOBS
PRINT*,'NUMBER OF MESSAGES ',N
STOP 'EOF'
END IF
IF(IERR.EQ.-2) STOP 'FILE HANDLING PROBLEM'
IF(IERR.EQ.-3) STOP 'ARRAY TOO SMALL FOR PRODUCT'
C
N=N+1
c PRINT*,'----------------------------------',N,' ',KBUFL
KBUFL=KBUFL/NBYTPW+1
IF(N.LT.NR) GO TO 300
C
C -----------------------------------------------------------------
C* 4. EXPAND BUFR MESSAGE.
C --------------------
400 CONTINUE
C
CALL BUS0123( KBUFL,KBUFF,KSUP,KSEC0,KSEC1,KSEC2,KSEC3,IERR)
IF(IERR.NE.0) THEN
PRINT*,'ERROR IN BUS012: ',IERR
PRINT*,' BUFR MESSAGE NUMBER ',N,' CORRUPTED.'
IERR=0
GO TO 300
END IF
C
KEL=KVALS/KSEC3(3)
IF(KEL.GT.KELEM) KEL=KELEM
C
CALL BUFREX(KBUFL,KBUFF,KSUP,KSEC0 ,KSEC1,KSEC2 ,KSEC3 ,KSEC4,
1 KEL,CNAMES,CUNITS,KVALS,VALUES,CVALS,IERR)
C
IF(IERR.NE.0) THEN
CALL EXIT(2)
END IF
C
C
IOBS=IOBS+KSEC3(3)
C
C
ISUBSET=1
CALL BUSEL2(ISUBSET,KEL,KTDLEN,KTDLST,KTDEXL,KTDEXP,CNAMES,
1 CUNITS,IERR)
C IF(IERR.NE.0) CALL EXIT(2)
C
C
c DO 401 IK=1,KSEC3(3)
c
c CALL BUSEL2(IK,KEL,KTDLEN,KTDLST,KTDEXL,KTDEXP,CNAMES,
c 1 CUNITS,IERR)
c KSUP(5)=KTDEXL
c CALL BUBOX(IK,KSUP,KEL,KTDEXP,CNAMES,CUNITS,KVALS,VALUES,
c 1 KBOX,KAPP,KLEN,KBOXR,VALS,CBOXN,CBOXU,IERR)
C
c 401 CONTINUE
C
C
C* 4.1 PRINT CONTENT OF EXPANDED DATA.
C -------------------------------
410 CONTINUE
C
IF(.NOT.OPRT) GO TO 500
IF(.NOT.OSEC3) GO TO 450
C
C* 4.2 PRINT SECTION ZERO OF BUFR MESSAGE.
C -----------------------------------
420 CONTINUE
C
CALL BUPRS0(KSEC0)
C
C* 4.3 PRINT SECTION ONE OF BUFR MESSAGE.
C -----------------------------------
430 CONTINUE
C
CALL BUPRS1(KSEC1)
C
C
C* 4.4 PRINT SECTION TWO OF BUFR MESSAGE.
C -----------------------------------
440 CONTINUE
C
C AT ECMWF SECTION 2 CONTAINS RDB KEY.
C SO UNPACK KEY
C
CALL BUUKEY(KSEC1,KSEC2,KEY,KSUP,IERR)
C
C PRINT KEY
C
CALL BUPRS2(KSUP ,KEY)
C
C* 4.5 PRINT SECTION 3 OF BUFR MESSAGE.
C -----------------------------------
450 CONTINUE
C
C FIRST GET DATA DESCRIPTORS
C
C Multi subset uncompressed data descriptors for the 1st subset
C Each subset can contain completly different list of expanded
C discriptors
C
ISUBSET=1
CALL BUSEL2(ISUBSET,KEL,KTDLEN,KTDLST,KTDEXL,KTDEXP,CNAMES,
1 CUNITS,IERR)
IF(IERR.NE.0) CALL EXIT(2)
C
C PRINT CONTENT
C
IF(OSEC3) THEN
CALL BUPRS3(KSEC3,KTDLEN,KTDLST,KTDEXL,KTDEXP,KEL,CNAMES)
END IF
C
C* 4.6 PRINT SECTION 4 (DATA).
C -----------------------
460 CONTINUE
C
C IN THE CASE OF MANY SUBSETS DEFINE RANGE OF SUBSETS
C
IF(.NOT.OO) THEN
WRITE(*,'(A,$)') ' STARTING SUBSET TO BE PRINTED : '
READ(*,'(BN,I4)') IST
WRITE(*,'(A,$)') ' ENDING SUBSET TO BE PRINTED : '
READ(*,'(BN,I4)') IEND
OO=.FALSE.
END IF
C
C PRINT DATA
C
ICODE=0
C IF(KSEC1(6).EQ.11) THEN
C
C IST=1
C IEND=KSEC3(3)
C
CALL BUPRT(ICODE,IST,IEND,KEL,CNAMES,CUNITS,CVALS,
1 KVALS,VALUES,KSUP,KSEC1,IERR)
C ELSE
C
C RESOLVE BIT MAPS FOR EACH SUBSET
C
C ist=1
C iend=ksec3(3)
C
C IF(IEND.GT.KSEC3(3)) IEND=KSEC3(3)
C
C DO 461 IK=IST,IEND
C
C CALL BUSEL2(IK,KEL,KTDLEN,KTDLST,KTDEXL,KTDEXP,CNAMES,
C 1 CUNITS,IERR)
C
C KSUP(5)=KTDEXL
C CALL BUBOX(IK,KSUP,KEL,KTDEXP,CNAMES,CUNITS,KVALS,VALUES,
C 1 KBOX,KAPP,KLEN,KBOXR,VALS,CBOXN,CBOXU,IERR)
C IF(IERR.NE.0) CALL EXIT(2)
C
C CALL BUPRTBOX(KBOX,KAPP,KLEN,KBOXR,VALS,CBOXN,CBOXU)
C
C461 CONTINUE
C END IF
C
C -----------------------------------------------------------------
C* 5. COLLECT DATA FOR REPACKING.
C ---------------------------
500 CONTINUE
C
C
IF(.NOT.OENC) GO TO 300
C
ISUBS=KSEC3(3)
DO J=1,ISUBS
C
NPACK=NPACK+1
C
C FIRST GET DATA DESCRIPTORS
C
CALL BUSEL2(J,KEL,KTDLEN,KTDLST,KTDEXL,KTDEXP,CNAMES,
1 CUNITS,IERR)
IF(IERR.NE.0) CALL EXIT(2)
C
DO I=1,KTDEXL
IO=I+(NPACK-1)*KEL1
IN=I+(J-1)*KEL
C
IF(CUNITS(I).EQ.'CCITTIA5') THEN
IPOS =VALUES(IN)/1000.
ICH=NINT(VALUES(IN)-IPOS*1000)
KKK=KKK+1
VALUE(IO)=KKK*1000+ICH
CVAL(KKK)=CVALS(IPOS)
ELSE
VALUE(IO)=VALUES(IN)
END IF
IF(KTDEXP(I).EQ.31001.OR.KTDEXP(I).EQ.31002) THEN
KK=KK+1
KDATA(KK)=NINT(VALUE(IO))
END IF
IF(KTDEXP(I).EQ.004001) THEN
IYEAR=NINT(VALUE(IO))
END IF
END DO
C
KDLEN=KK
IF(NPACK.EQ.NCOM) THEN
KSEC3(3)=NPACK
KSEC1(5)=0
KSEC1(8)=1
KSEC1(15)=12
IF(KSEC0(3).LT.4) THEN
KSEC1(17)=255
KSEC1(18)=0
END IF
KSEC0(3)=3 ! EDITION 4 OF BUFR MESSAGE
IF(KSEC0(3).GE.4) KSEC1(1)=22
KSEC3(4)=0 ! NO COMPRESSION
IF(KSEC0(3).LE.3) THEN
IF(IYEAR.GT.2000) THEN
KSEC1(9)=IYEAR-2000
ELSE
KSEC1(9)=IYEAR-1900
END IF
ELSE
KSEC1(9)=IYEAR
END IF
IF(OCOMP) KSEC3(4)=64 ! COMPRESSION
KBUFL=JBUFL
CALL BUFREN( KSEC0,KSEC1,KSEC2,KSEC3,KSEC4,
1 KTDLEN,KTDLST,KDLEN,KDATA,KEL1,
2 KVALS,VALUE,CVAL,KBUFL,KBUFR,IERR)
IF(IERR.NE.0) THEN
PRINT*,'ERROR IS ',IERR
PRINT*,'ERROR DURING ENCODING.'
CALL EXIT(2)
END IF
C
ILEN=KBUFL*NBYTPW
C
IERR=0
C
CALL PBWRITE(IUNIT1,KBUFR,ILEN,IERR)
IF(IERR.LT.0) THEN
PRINT*,'ERROR WRITING INTO TARGET FILE.'
CALL EXIT(2)
END IF
PRINT*,'RECORD WRITTEN INTO FILE '
C
NPACK=0
KKK=0
KK=0
END IF
C
END DO
C
GO TO 300
C -----------------------------------------------------------------
C* 6. PACK BUFR MESSAGE BACK INTO BUFR.
C ---------------------------------
600 CONTINUE
C
KSEC3(3)=NPACK
KSEC1(8)=1
KSEC1(15)=12
KSEC0(3)=4 ! EDITION 4 OF BUFR MESSAGE
IF(KSEC0(3).GE.4) KSEC1(1)=22
IF(KSEC0(3).LT.4) THEN
KSEC1(17)=255
KSEC1(18)=0
END IF
KSEC3(4)=0 ! NO COMPRESSION
IF(KSEC1(9).LT.101) THEN
KSEC1(9)=IYEAR
END IF
C
IF(OCOMP) KSEC3(4)=64 ! COMPRESSION
KBUFL=JBUFL
C
C
C* 6.2 ENCODE DATA INTO BUFR MESSAGE.
C ------------------------------
620 CONTINUE
C
CALL BUFREN( KSEC0,KSEC1,KSEC2,KSEC3,KSEC4,
1 KTDLEN,KTDLST,KDLEN,KDATA,KEL1,
2 KVALS,VALUE,CVAL,KBUFL,KBUFR,IERR)
IF(IERR.NE.0) THEN
PRINT*,'ERROR IS ',IERR
PRINT*,'ERROR DURING ENCODING.'
CALL EXIT(2)
END IF
C
C 6.3 WRITE PACKED BUFR MESSAGE INTO FILE.
C ------------------------------------
630 CONTINUE
C
ILEN=KBUFL*NBYTPW
C
CALL PBWRITE(IUNIT1,KBUFR,ILEN,IERR)
IF(IERR.LT.0) THEN
PRINT*,'ERROR WRITING INTO TARGET FILE.'
CALL EXIT(2)
END IF
PRINT*,'RECORD WRITTEN INTO FILE '
C
NPACK=0
KKK=0
C
GO TO 300
C -----------------------------------------------------------------
C
810 CONTINUE
C
WRITE(*,'(1H ,A)') 'OPEN ERROR ON INPUT FILE'
GO TO 900
C
800 CONTINUE
C
IF(IRET.EQ.-1) THEN
PRINT*,'NUMBER OF RECORDS PROCESSED ',N
PRINT*,'NUMBER OF OBSERVATIONS ',IOBS
ELSE
PRINT*,' BUFR : ERROR= ',IERR
END IF
C
900 CONTINUE
C
CALL PBCLOSE(IUNIT,IRET)
101 CONTINUE
CALL PBCLOSE(IUNIT1,IRET)
C
END
|
