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20011210: GEMPAK: mismatched BR and MIFG symbols?
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- Subject: 20011210: GEMPAK: mismatched BR and MIFG symbols?
- Date: Mon, 10 Dec 2001 11:26:17 -0700
Christian, It appears that there needs to be an update to the ptwnmt.f routine. Attatched is a copy that will change the encoding of MIFG to GF (12) and BR to F (10). Place the attatched ptwnmt.f file in $GEMPAK/source/gemlib/pt. Then update the gemlib with: cd $GEMPAK/source/gemlib/pt make clean make all make clean Then relink the dcmetr decoder so that it recognizes this change: cd $GEMPAK/source/programs/dc/dcmetr make clean make all make install make clean Thanks, Steve Chiswell Unidata User Support On Mon, 10 Dec 2001, Unidata Support wrote: > > ------- Forwarded Message > > >To: <address@hidden> > >From: Christian Page <address@hidden> > >Subject: GEMPAK: mismatched BR and MIFG symbols? > >Organization: UCAR/Unidata > >Keywords: 200112101021.fBAALHN03989 > > > Hi, > > I just noticed today that when using sfmap to plot METAR data, I get: > MIFG -> symbol 10 > BR -> symbol 12 > > Shouldn't it be the reverse? > > Christian Page > UQAM > > > > ------- End of Forwarded Message >
FUNCTION PT_WNMT ( wcmt )
C************************************************************************
C* PT_WNMT *
C* *
C* This function converts any METAR character weather code into a *
C* GEMPAK weather number, WNUM: *
C* *
C* WNUM = PT_WNMT ( WCMT ) *
C* *
C* The range of numbers which might result is -2 to 512000. WNUM can *
C* be converted to a character weather code, WCOD, using the function *
C* PT_WCOD. (The character weather code which results will be the *
C* GEMPAK weather code, not the METAR weather code. For example, if *
C* the original METAR code was '+RA', the code returned by PT_WCOD would*
C* be 'R+'.) *
C* *
C* PT_WNMT ( WCMT ) *
C* *
C* Input parameters: *
C* WCMT CHAR* Character weather string *
C* *
C* Output parameters: *
C* PT_WNMT REAL Weather number *
C** *
C* Log: *
C* S. Jacobs/NCEP 11/96 Copied from PT_WNUM *
C* D. Kidwell/NCEP 5/98 If FC or +FC found, ignore other weather*
C* D. Kidwell/NCEP 7/98 Changed all PE references to PL; fixed *
C* prologue *
C* S. Chiswell/Unidata 12/01 Correcter MIFG from 9->31. BR 31->9. *
C************************************************************************
CHARACTER*(*) wcmt
C*
CHARACTER input*80, tstr*80, w1*2, w2*3, w3*4, w4*5
REAL fnum ( 3 )
LOGICAL again
C
C* The following table of parts is used to assign a number to each
C* weather part. If new names are added to the table, the
C* longer codes must follow shorter ones. Also, the parameters
C* which locate parts of various lengths must be updated. The
C* method of computing the final weather number requires that no
C* more than 79 weather parts be specified.
C
CHARACTER wpart (74)*5
INTEGER jpnum (74)
DATA wpart / 'BR', 'DS', 'DU', 'DZ', 'FC', 'FG',
+ 'FU', 'GR', 'GS', 'HZ', 'IC', 'PL',
+ 'PO', 'RA', 'SA', 'SG', 'SN', 'SQ',
+ 'SS', 'TS', 'UP', 'VA',
+ '+DS', '-DZ', '+DZ', '+FC', '-GS',
+ '+GS', '-PL', '+PL', '-RA', '+RA',
+ '-SG', '+SG', '-SN', '+SN', '+SS',
+ 'BCFG', 'BLDU', 'BLPY', 'BLSA', 'BLSN',
+ 'DRDU', 'DRSA', 'DRSN', 'FZDZ', 'FZFG',
+ 'FZRA', 'MIFG', 'PRFG', 'SHGR', 'SHGS',
+ 'SHPL', 'SHRA', 'SHSN', 'TSRA',
+ '+BLDU', '+BLSA', '+BLSN', '-FZDZ',
+ '+FZDZ', '+FZFG', '-FZRA', '+FZRA',
+ '-SHGS', '+SHGS', '-SHPL', '+SHPL',
+ '-SHRA', '+SHRA', '-SHSN', '+SHSN',
+ '-TSRA', '+TSRA' /
DATA jpnum / 9, 33, 8, 2, -2, 9,
+ 7, 4, 25, 6, 36, 23,
+ 40, 1, 35, 24, 3, 10,
+ 35, 5, 41, 11,
+ 68, 17, 18, -1, 61,
+ 62, 57, 58, 13, 14,
+ 59, 60, 20, 21, 69,
+ 9, 33, 34, 35, 32,
+ 33, 35, 32, 19, 30,
+ 15, 31, 9, 27, 67,
+ 63, 16, 22, 66,
+ 68, 69, 70, 53,
+ 54, 30, 49, 50,
+ 67, 67, 75, 76,
+ 51, 52, 55, 56,
+ 77, 78 /
DATA i1strt, i1stop, i2strt, i2stop, i3strt, i3stop,
+ i4strt, i4stop / 1, 22, 23, 37, 38, 56, 57, 74 /
C------------------------------------------------------------------------
C* Move input code to new variable and get length.
C
input = wcmt
CALL ST_LSTR ( input, length, ier )
C
C* Check for blank string.
C
IF ( length .eq. 0 ) THEN
PT_WNMT = 0.
RETURN
END IF
C
C* Loop until string is all used, until three parts are found,
C* or until an unknown part is encountered.
C
fnum (1) = 0
fnum (2) = 0
fnum (3) = 0
iprt = 1
DO WHILE ( length .gt. 0 )
C
C* First check four character strings.
C
again = .false.
num = 0
w4 = input ( 1 : 5 )
DO i = i4strt, i4stop
IF ( w4 .eq. wpart ( i ) ) num = jpnum ( i )
END DO
C
C* If found, eliminate from string and fix length.
C
IF ( num .ne. 0 ) THEN
input = input ( 6 : )
length = length - 5
C
C* Otherwise, check three character symbols.
C
ELSE
w3 = input ( 1 : 4 )
DO i = i3strt, i3stop
IF ( w3 .eq. wpart ( i ) ) num = jpnum ( i )
END DO
C
C* If found, eliminate from string and fix length.
C
IF ( num .ne. 0 ) THEN
input = input ( 5 : )
length = length - 4
C
C* Otherwise, check two character symbols.
C
ELSE
w2 = input ( 1 : 3 )
DO i = i2strt, i2stop
IF ( w2 .eq. wpart ( i ) ) num = jpnum ( i )
END DO
C
C* If found, eliminate from string and fix length.
C
IF ( num .ne. 0 ) THEN
input = input ( 4 : )
length = length - 3
C
C* Otherwise, check one character symbols.
C
ELSE
w1 = input ( 1 : 2 )
DO i = i1strt, i1stop
IF ( w1 .eq. wpart ( i ) ) num = jpnum(i)
END DO
C
C* If found, eliminate from string and fix length.
C
IF ( num .ne. 0 ) THEN
input = input ( 3 : )
length = length - 2
C
C* Otherwise, the code was not found.
C
ELSE
C
C* Check for unknown ID.
C
IF ( ( input (1:1) .eq. '+' ) .or.
+ ( input (1:1) .eq. '-' ) ) THEN
tstr = input(2:3) // input(1:1) //
+ input(4:)
input = tstr
again = .true.
ELSE
length = 0
END IF
END IF
END IF
END IF
END IF
C
C* Save this number.
C
IF ( .not. again ) THEN
fnum ( iprt ) = num
iprt = iprt + 1
IF ( iprt .gt. 3 ) length = 0
END IF
END DO
C
C* Compute number. Check for FC (funnel cloud) or +FC (tornado
C* or waterspout). If found, ignore all other weather.
C
IF ( ( fnum (1) .ge. 0. ) .and. ( fnum (2) .ge. 0. ) .and.
+ ( fnum (3) .ge. 0. ) ) THEN
PT_WNMT = fnum (3) * 80 * 80 + fnum (2) * 80 + fnum (1)
ELSE
PT_WNMT = AMIN1 ( fnum (1), fnum (2), fnum (3) )
END IF
C*
RETURN
END
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