Kevin,
----- Original Message -----
From: "Kevin R Tyle" <ktyle@xxxxxxxxxx>
To: gembud@xxxxxxxxxxxxxxxx
Cc: person@xxxxxxxxxxxxx
Sent: Monday, September 30, 2013 10:45:09 AM
Subject: NAMSND and BUFR files
Hi all,
Since NCEP transitioned to WCOSS this past July, we are no longer able to
decode GFS BUFR soundings with the GEMPAK program NAMSND. Has anyone been able
to make modifications so that these files can again be read? Curiously, things
still work when processing NAM BUFR soundings.
Art, I’m specifically cc’ing you here, since I believe PSU uses the NAMSND
program to generate output for BufKit sounding files, which look to be produced
using SNLIST.
No, we're not using NAMSND to decode them... we're using an ancient NCEP code
to dump the BUFR files and then an in-house developed decoder.
<blockquote>
As far as I know, the GFS BUFKIT files still work.
</blockquote>
Yes, it looks like it's still working, and I've had no complaints.
It looks like the blocking/deblocking business has to do with whether the BUFR
file had its records written in a fortran record style with fortran control
words. I'm guessing the files we use are pure unblocked BUFR sounding files
(e.g. from
http://weather.noaa.gov/pub/SL.us008001/ST.opnl/MT.gfs_CY.12/RD.20130930/PT.sndn_DF.buf/)
and therefore are not affected by the change.
Art
<blockquote>
Cheers,
Kevin
_____________________________________________
Kevin Tyle, Systems Administrator
Dept. of Atmospheric & Environmental Sciences
University at Albany
Earth Science 235, 1400 Washington Avenue
Albany, NY 12222
Email: ktyle@xxxxxxxxxx
Phone: 518-442-4578
_____________________________________________
From: wrf-news-bounces@xxxxxxxx [mailto:wrf-news-bounces@xxxxxxxx] On Behalf Of
Donald Stark
Sent: Tuesday, August 13, 2013 4:39 PM
To: gsi_users@xxxxxxxx; wrf-news@xxxxxxxx; gsi_news@xxxxxxxx
Subject: [Wrf-news] New BUFR format from NCEP WCOSS implementation
Dear GSI users,
Please note the community tool (ssrc) we provided for converting the NCEP BUFR
files from Big-Endian to Little_Endian is no longer working for the new NCEP
BUFR files after NCEP operation system went alive on WCOSS system on July 25th.
Since the July 25th, all NCEP BUFR files are unblocked files instead of
blocked. Please see the explanations below from NCEP:
* Blocked/Unblocked BUFR
-All BUFR files created on WCOSS are now unblocked. This decision was made back
in September as a result of the Endianess changes on WCOSS (Little-Endian on
WCOSS vs. Big-Endian on CCS) and its affect on the blocking control words.
Users are recommended to recompile their codes to link to the latest NCEP
BUFRLIB which can read unblocked BUFR files found here
To use the NCEP BUFR files after July 25th, please update the BUFRLIB or use
comGSIv3.2, which includes the new BUFRLIB. The new BUFRLIB can automatically
handle both endian files. So, no converting needed. The new BUFRLIB also works
well with the old NCEP BUFR files without converting.
Thanks,
DTC DA Team,
</blockquote>
--
Arthur A. Person
Research Assistant, System Administrator
Penn State Department of Meteorology
email: aap1@xxxxxxx, phone: 814-863-1563
