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Addition of 0.5 degree GFS hours, RUC GRIB2

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  • Subject: Addition of 0.5 degree GFS hours, RUC GRIB2
  • Date: Wed, 09 Aug 2006 11:20:29 -0600
CONDUIT Data Users,

The GFS 0.5 degree and RUC additions (as described below) are being
implemented today at the top level relays.  The 18Z GFS 0.5 degree grid
products on CONDUIT will be received from the NCEP LDM server with the
change in file name pattern.
RUC data files in GRIB2 should be seen around or after the 16Z run.

If you have any question or problems, please contact
address@hidden.

Steve Chiswell
Unidata User Support

***********************************************************************


On Wednesday August 9,  at approximately 18Z, the following 2 changes
will be implemented to the CONDUIT IDD data stream:

1) GFS 0.5 degree data will be expanded from 0-84 hours to 0-180 hours.

In order to provide the additional forecast time periods, the GRIB2
format GFS data product names will change from the tgftp.nws.noaa.gov
file names to the ftpprd.nws.noaa.gov file names. The naming convention
for the GFS 0.5 degree products is shown on the CONDUIT GFS data page
http://www.unidata.ucar.edu/data/conduit/ldm_idd/gfs_files.html .  

2) RUC

RUC grids will be provided in GRIB2 format as a new data set. Users will
note the pressure levels grids are available at additional hourly output
times through F12 for synoptic times, and through F09 at off-synoptic
times. The file naming convention
for the ftpprd.nws.noaa.gov RUC grids is shown on the CONDUIT RUC data
page:
http://www.unidata.ucar.edu/data/conduit/ldm_idd/ruc2_files.html

-------------------------------------------------------------------

The additional volume of these data sets is 1.25 GB per GFS run (5GB per
day), and 253 MB per RUC (at synoptic times) run (about 5.5 GB per day).
Other currently available CONDUIT data sets will continue (including the
1.0 degree GFS grids in GRIB1) using the tgftp file server names at this
time. We will transition other file data sets to the
ftpprd.ncep.noaa.gov file source as sites are able to handle the
configuration changes to LDM pqact entries.

If you have any questions or comments, please send them to
address@hidden.

Steve Chiswell
Unidata User Support
-- 
Steve Chiswell <address@hidden>
Unidata