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[GEMPAK #PVG-756937]: problems decoding ship soundings

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  • Subject: [GEMPAK #PVG-756937]: problems decoding ship soundings
  • Date: Fri, 22 Aug 2008 15:55:47 -0600
Hi Greg-

> I'm trying to use gempak to look at some ship soundings for a project
> we are currently supporting. The ship is JCCX and is doing launches at
> 00 at 12 UTC. I have our ldm set up to decode these incoming messages
> with dcuair (We are running gempak 5.11.1). Below is the code from our
> pqact.conf file set up for this:
> 
> #
> # upper air reports
> #
> WMO     ^U[ABCDEFGHIJKLMNPQRSTWXY]
> PIPE    dcuair -b 24 -m 16
> -d logs/dcuair.log
> -e GEMTBL=/home/gempak/NAWIPS/gempak/tables
> -s snstns.tbl
> data/gempak/upperair/uaYYYYMMDD.gem
> 
> Our ldm is also capturing the coded message as text as well. Here's
> the problem: We are receiving the coded message soundings for this
> ship but they do not seem to appear in our decoded gempak file. Here's
> one of today's coded messages from this ship:
> 
> USVX01 RJTD 220000
> UUAA JCCX 72001 99315 11279 13217
> 99004 28418 20015 00042 28022 19516 92731 22602 22033 85466 18610
> 22032 70117 11456 22527 50585 05165 26536 40757 14127 23027 30970
> 28129 28031 25098 37545 28014 20248 505// 29019 15429 653// 33039
> 10668 771// 01036
> 88103 783// 34533
> 77999
> 31313 47908 82330 90294=
> 
> 
> What am I doing wrong?

You need to use the -a option to set the number of extra stations
to add.  The default of 25 is apparently not enough to get all the
other additional stations, plus JCCX.  If I decode just the 
00Z obs from the IDD, -a 25 doesn't  get JCCX, but -a 30 does.
I'd set it to be 40 just to be safe.

Also, the id will be JCCXnn where nn is the synoptic hour of the
report.

Don Murray

Ticket Details
===================
Ticket ID: PVG-756937
Department: Support GEMPAK
Priority: Normal
Status: Open