20011130: KWSI station of origin and arbitrary directories in $LDMHOME

• To: Stephen Sinnis <ssinnis@xxxxxxxxxxxxxxx>
• Subject: 20011130: KWSI station of origin and arbitrary directories in $LDMHOME
• From: Steve Chiswell <chiz@xxxxxxxxxxxxxxxx>
• Date: Fri, 30 Nov 2001 15:08:09 -0700

Stephen,

Looks like the FDCNO KWSI 302000 header is misnamed,
the FDCNO should probably be "FDCN0". Eg, letter Oh should be zero.

If you are ingesting this stream though pqing, which canonicalizes the
product name, the FDCN00 is created because the 1 or 2 digit (ii)
number from TTAAII CCCC' is not found. The "O" is then assumed to be
part of the CCCC. In absence of a valid WMO time (which now is getting clobbered
by the KWSI string), the current system time is used.

pqcat:      357 20011130182856.123  DDPLUS 242  FDCN00    O 301828

Your pqact.conf entry that is doing the filing that matches this product
is probably getting the garbage from trying to create the time strings
for replacemnt into the \yyyy \mm \dd or \hh strings.

You should use the regular expressions in pqact to prevent malformed
headers from being written in this way. For example, if you are using
the pattern replacements \1 \2 and \3, the following will ensure that
each has a valid range:

FPCN.* .... ([0-3][0-9])([0-2][0-9])([0-6][0-9])


Steve Chiswell
Unidata User Support




On Fri, 30 Nov 2001, Stephen Sinnis wrote:

> I have recently noticed many new subdirectories being created in the
> $LDMHOME directory.  These directories are all one (1) and two (2) alpha
> characters in length. EXAMPLE:'+2' ';1' 'Y' '0'
>
> Upon examination of the data they all seem to have the station of origin as
> KWSI, for example:
>
> ^A^M
> 867 ^M
> FDCNO KWSI 302000^M
> ^^FDC !FDC 1/2850 N14 FI/T FLYING W  LUMBERTON, NJ.^M
>      VOR-A AMDT 2 ...^M
>        MSA FROM ROBBINSVILLE (RBV) VORTAC 025-270 1700, 270-025 2100.^M
> ^^FDC !FDC 1/2852 DCA FI/T RONALD REAGAN WASHINGTON NATIONAL, ^M
> WASHINGTON, DC. ^M
>   VOR/DME OR GPS RWY 19, AMDT 9...^M
>      S-19 MDA 940/HAT 926 ALL CATS. VIS CATS A/B RVR 6000,^M
>      CAT C 2 3/4, CAT D 3.^M
>      CIRCLING MDA 940/HAA 924 ALL CATS. VIS CATS A/B 1 1/4,^M
>      CAT C 2 3/4, CAT D 3.^M
>      MINIMUM ALTITUDE AT DCA 5.00 DME (FAF) 1600.^M
>      DCA 3.0 DME STEPDOWN FIX NA.^M
>      VDP DCA 2.2 DME NA.^M
>      ALTERNATE MINIMUMS: CATS A/B 940-2, CAT C 940-2 3/4, ^M
>      CAT D 940-3.^M
> ^^^M
> ^C^A^M
> 916 ^M
> FDCNO KWSI 302000^M
> ^^FDC !FDC 1/2853 FDC CANCEL 1/2742 DCA^M
> ^^^M
> ^C
>
> This bulletin gets placed into a directory called ~ldm/O/20.
>
> pqcat -v reveals:
>
> Nov 30 21:16:07 pqcat: Starting Up (6337)
> Nov 30 21:16:07 pqcat:      357 20011130182856.123  DDPLUS 242  FDCN00    O
> 301828
>
> I get my data directly from a WSI HCSN feed and from the Canadian Met.
> Center's Anikom Satellite service.
>
> Is anyone else getting these randomly created subdirectories in the $LDMHOME
> directory?
>
> Stephen Sinnis
> Pelmorex Inc.
> ssinnis@xxxxxxxxxxxxxxx
>

• References:
  • KWSI station of origin and arbitrary directories in $LDMHOME
    • From: Stephen Sinnis