[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[GEMPAK #DHZ-709940]: GFS T574 grids?

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [GEMPAK #DHZ-709940]: GFS T574 grids?
  • Date: Tue, 05 Feb 2013 09:43:21 -0700
Hi Greg,

As well as I know the 27km T574 grids are not coming through CONDUIT.  I've not 
found them and been able to test dcgrib2 with these files.  I'm checking if the 
grids are available now.

-Michae


> Hello,
> I'm trying to obtain the 27 km res GFS global grids via LDM and
> decode them into a GEMPAK file I can use for plotting. I've looked
> through the GEMPAK templates that were installed with GEMPAK6.7.0 on our
> system and the closest pqact pattern I can find is:
> 
> # 0.5 degree GFS data
> CONDUIT prod/gfs.*pgrb2
> PIPE    decoders/dcgrib2 -d
> data/gempak/logs/dcgrib2_CONDUITgfs2.log
> -e GEMTBL=@GEMTBL@
> 
> This all works on our system but when I look at the .gem files I get:
> 
> GEMPAK-GDINFO>gdfile=/export/ldm/data/gempak/model/gfs.t18z.pgrbf12.gem
> GEMPAK-GDINFO>r
> 
> GRID FILE: /export/ldm/data/gempak/model/gfs.t18z.pgrbf12.gem
> 
> GRID NAVIGATION:
> PROJECTION:          CED
> ANGLES:                 0.0     0.0     0.0
> GRID SIZE:          360 181
> LL CORNER:             -90.00      0.00
> UR CORNER:              90.00     -1.00
> 
> GRID ANALYSIS BLOCK:
> UNKNOWN ANALYSIS TYPE
> 
> Number of grids in file:   350
> 
> Maximum number of grids in file:   5000
> 
> These are still 0.5 degree files (which I thought weren't being produced
> anymore). Can you give me the pqact.conf patterns to obtain the 27km GFS
> grids?
> 
> Thanks,
> Greg
> 
> 
> 


Ticket Details
===================
Ticket ID: DHZ-709940
Department: Support GEMPAK
Priority: High
Status: Open