Re: [gembud] DCGRIB2 failing on new NAM CONUS-nest files

  • To: Russ Schumacher <russ.schumacher@xxxxxxxxxxxxx>
  • Subject: Re: [gembud] DCGRIB2 failing on new NAM CONUS-nest files
  • From: "Tyle, Kevin R" <ktyle@xxxxxxxxxx>
  • Date: Wed, 22 Mar 2017 18:58:48 +0000
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Hi Russ,

Did you verify that you have grids up through F48 in there now?  I just looked 
at mine, and my GEMPAK file reaches the maximum # of grids (29999) prior to F48.

--Kevin
_____________________________________________
Kevin Tyle, Manager of Departmental Computing
Dept. of Atmospheric & Environmental Sciences
University at Albany
Earth Science 235, 1400 Washington Avenue
Albany, NY 12222
Email: ktyle@xxxxxxxxxx<mailto:ktyle@xxxxxxxxxx>
Phone: 518-442-4578
_____________________________________________

From: gembud-bounces@xxxxxxxxxxxxxxxx [mailto:gembud-bounces@xxxxxxxxxxxxxxxx] 
On Behalf Of Russ Schumacher
Sent: Wednesday, March 22, 2017 2:09 PM
To: Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES CORPORATION] 
<robert.r.mullenax@xxxxxxxx>
Cc: gembud@xxxxxxxxxxxxxxxx
Subject: Re: [gembud] DCGRIB2 failing on new NAM CONUS-nest files

And one other GEMPAK quirk that has come up with the new NAM files (for all of 
the resolutions, not just the nest): plotting accumulated precipitation for 
periods longer than ~36 hours no longer appears to work.  (example below from 
the 40-km grid) I assume that this has to do with the change from hourly files 
only in the first 36 hrs, to hourly files throughout the forecast.  But Iâm not 
sure how to figure out a fix for that.  Any insights from the GEMPAK gurus 
would be welcome!

Russ

----------

For the 18-hr accumulation, works fine:

 GEMPAK-GDPLOT2>r
 Number of times =            1
           1  170322/1200F018

 PARAMETERS FOR GDPLOT : FRAME NUMBER  1 INITIAL PLOT SETTINGS -
    GDFILE=nam40, GDATTIM=170322/1200F018
    GAREA=fnl, PROJ=MER, MAP=31//2+31//2+31//1, LATLON=0
    PANEL=0, TITLE=31
    OVERLAY  TYPE       LEVEL           VCORD       GRID FUNCTION
        1    C          0               NONE        P18M
 Parameters requested: GDFILE,GDATTIM,GLEVEL,GVCORD,PANEL,SKIP,SCALE,GDPFUN,
 TYPE,CONTUR,CINT,LINE,FINT,FLINE,HILO,HLSYM,CLRBAR,WIND,REFVEC,TITLE,TEXT,
 CLEAR,GAREA,IJSKIP,PROJ,MAP,MSCALE,LATLON,DEVICE,STNPLT,SATFIL,RADFIL,
 IMCBAR,LUTFIL,STREAM,POSN,COLORS,MARKER,GRDLBL,FILTER.

For the 48-hour accumulation, doesnât work:
 GEMPAK-GDPLOT2>gdpfun=p48m
 GEMPAK-GDPLOT2>r
 Number of times =            1
           1  170322/1200F048

 PARAMETERS FOR GDPLOT : FRAME NUMBER  1 INITIAL PLOT SETTINGS -
    GDFILE=nam40, GDATTIM=170322/1200F048
    GAREA=fnl, PROJ=MER, MAP=31//2+31//2+31//1, LATLON=0
    PANEL=0, TITLE=31
    OVERLAY  TYPE       LEVEL           VCORD       GRID FUNCTION
        1    C          0               NONE        P48M
 [DG -7]  Input grid P48M ^170322/1200F048 @0 %NONE cannot be found.
 [GDPLOT 2]  The requested scalar/vector cannot be computed.
 Parameters requested: GDFILE,GDATTIM,GLEVEL,GVCORD,PANEL,SKIP,SCALE,GDPFUN,
 TYPE,CONTUR,CINT,LINE,FINT,FLINE,HILO,HLSYM,CLRBAR,WIND,REFVEC,TITLE,TEXT,
 CLEAR,GAREA,IJSKIP,PROJ,MAP,MSCALE,LATLON,DEVICE,STNPLT,SATFIL,RADFIL,
 IMCBAR,LUTFIL,STREAM,POSN,COLORS,MARKER,GRDLBL,FILTER.



On Mar 22, 2017, at 10:57 AM, Schumacher,Russ 
<Russ.Schumacher@xxxxxxxxxxxxx<mailto:Russ.Schumacher@xxxxxxxxxxxxx>> wrote:

Thanks, Robert.  Yes, I just tried it on CentOS and it worked for me too.  So 
it looks like itâs something Mac-specific.

Russ


On Mar 22, 2017, at 10:55 AM, Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES 
CORPORATION] <robert.r.mullenax@xxxxxxxx<mailto:robert.r.mullenax@xxxxxxxx>> 
wrote:

Russ,

It may possibly an issue with GEMPAK on Mac OS. I was able to decode the file 
with no issues with GEMPAK 7.1 on Solaris 11.3 and GEMPAK 7.3 on CentOS 7.2.

Regards,
Robert Mullenax




Please note new email address: 
robert.r.mullenax@xxxxxxxx<mailto:robert.r.mullenax@xxxxxxxx>
Robert Mullenax
Senior Principal Meteorologist, Orbital ATK/CSBF
1510 E. FM 3224
Palestine, Texas 75802
903-723-8037
robert.r.mullenax@xxxxxxxx<mailto:robert.r.mullenax@xxxxxxxx>
________________________________________
From: gembud-bounces@xxxxxxxxxxxxxxxx<mailto:gembud-bounces@xxxxxxxxxxxxxxxx> 
[gembud-bounces@xxxxxxxxxxxxxxxx<mailto:gembud-bounces@xxxxxxxxxxxxxxxx>] on 
behalf of Russ Schumacher 
[russ.schumacher@xxxxxxxxxxxxx<mailto:russ.schumacher@xxxxxxxxxxxxx>]
Sent: Wednesday, March 22, 2017 11:46 AM
To: gembud@xxxxxxxxxxxxxxxx<mailto:gembud@xxxxxxxxxxxxxxxx>
Subject: [gembud] DCGRIB2 failing on new NAM CONUS-nest files

Hello gembuds,

Since the recent NAM upgrade, my call to DCGRIB2 to decode some of the fields 
into GEMPAK format files has been failing.

In particular, hereâs an example command and the error message:

dcgrib2 -m 10000 -v 1 -d logs/dcgrib2_namnest.log -e GEMTBL=$GEMTBL -e 
MDMETH=MDGDEC YYYYMMDDHHfFFF_nam4km.gem < nam.t00z.conusnest.hiresf60.tm00.grib2
Opening WMO Originating Center Table wmocenter.tbl...
Opening WMO GRIB2 Parameter Table g2varswmo2.tbl...
Opening WMO GRIB2 Vertical Coordinate Table g2vcrdwmo2.tbl...
Abort trap: 6

So, not a very instructive error message, unfortunately.

The GRIB2 files can be found at (for example): 
http://nomads.ncep.noaa.gov/pub/data/nccf/com/nam/prod/nam.20170322/nam.t00z.conusnest.hiresf60.tm00.grib2
  (although Iâm only pulling a subset of fieldsâbut I also tested a full file 
and got the same result)

Iâm using GEMPAK 7.3.1 on a Mac OS X.  This command always worked prior to the 
NAM upgrade, and NAGRIB2 works just fine on these new files, so I suspect 
thereâs just something in the decoder tables, etc., for DCGRIB2 that need to be 
updated.  Any ideas/solutions would be welcome â thanks!

Russ



--
Russ S. Schumacher
Associate Professor
Department of Atmospheric Science
Colorado State University
e-mail: 
russ.schumacher@xxxxxxxxxxxxx<mailto:russ.schumacher@xxxxxxxxxxxxx><mailto:russ.schumacher@xxxxxxxxxxxxx>
phone: 970.491.8084
web: http://www.atmos.colostate.edu/faculty/schumacher.php



--
Russ S. Schumacher
Associate Professor
Department of Atmospheric Science
Colorado State University
e-mail: russ.schumacher@xxxxxxxxxxxxx<mailto:russ.schumacher@xxxxxxxxxxxxx>
phone: 970.491.8084
web: http://www.atmos.colostate.edu/faculty/schumacher.php








--
Russ S. Schumacher
Associate Professor
Department of Atmospheric Science
Colorado State University
e-mail: russ.schumacher@xxxxxxxxxxxxx<mailto:russ.schumacher@xxxxxxxxxxxxx>
phone: 970.491.8084
web: http://www.atmos.colostate.edu/faculty/schumacher.php