[GEMPAK #ZTH-407575]: GEMPAK nagrib issue

Hi John,

Can you re-send the GDLIST input and output? The attached grid files isn't 
necessary, when your previous email came in the files were removed.

I am looking over here for missing data -9999 or 0 values at the meridian but 
not seeing any.  I am using the 1 degree GFS grib2 files from NCEP NOMADS ftp 
server to check.

-Michael





> We haven't heard back about this issue - any further assistance you can
> provide?
> 
> Thanks.
> 
> John
> 
> -----Original Message-----
> From: John Manobianco [mailto:address@hidden]
> Sent: Saturday, November 02, 2013 9:14 AM
> To: 'address@hidden'
> Subject: RE: [GEMPAK #ZTH-407575]: GEMPAK nagrib issue
> 
> Michael,
> 
> I tried this exercise using the same command on a recent GSF data set
> (gdas.t00z.pgrbf00.grib2) with the following command
> 
> dcgrib2 dummy.grd < gdas1.t00z.pgrbf00.grib2
> 
> However, I still get a missing column of data at the 0 deg meridian (figure
> attached).
> 
> I've also attached the GEMPAK file and the GDLIST output showing text data.
> 
> Perhaps this issue is related to the compiler (ifort v11.1 ) and operating
> system characteristics (uname -a) on the machine where I'm running GEMPAK.
> 
> Linux ens00ib 2.6.18-371.1.2.el5 #1 SMP Tue Oct 22 12:51:53 EDT 2013 x86_64
> x86_64 x86_64 GNU/Linux
> 
> Thanks.
> 
> John
> 
> -----Original Message-----
> From: Unidata GEMPAK Support [mailto:address@hidden]
> Sent: Friday, November 01, 2013 3:37 PM
> To: address@hidden
> Cc: address@hidden
> Subject: [GEMPAK #ZTH-407575]: GEMPAK nagrib issue
> 
> Hi John,
> 
> For decoding grib 1 and 2 files, I always recommend using the program
> "dcgrib2" rather than "nagrib".
> 
> Unidata added dcgrib2 to the NAWIPS/GEMPAK package some years ago; it was
> developed to  be more robust than the NAGRIB program created by NCEP.
> 
> I downloaded a 1.0 deg global GFS file and decoded it with the command
> "dcgrib2 gfs.gem < gfs.t12z.pgrbf12.grib2"
> 
> I then plotted the 500mb temperature field using
> 
> GAREA    = -21;-150;-21;30
> PROJ     = STR/90;-105;0
> GDFILE   = gfs.gem
> GDATTIM  = last
> GLEVEL   = 500
> GVCORD   = pres
> GDPFUN   = tmpf
> TYPE     = f
> FINT     = 5
> FLINE    = 30-7
> 
> This to confirm that when using dcgrib2 there are no missing data along the
> boundaries. See attached image.
> 
> 
> -Michael
> 
> 
> > Good Morning,
> >
> > I am using nagrib (v.6.8.0) to decode GFS 1 x 1 deg global data (360x181) .
> > The settings are as follows
> >
> > GBFILE   = avn.2012102300f00.grib2
> >
> > INDXFL   =
> >
> > GDOUTF   = dummy.grd
> >
> > PROJ     =
> >
> > GRDAREA  =
> >
> > KXKY     =
> >
> > MAXGRD   = 3000
> >
> > CPYFIL   = #3
> >
> > GAREA    =
> >
> > OUTPUT   = f
> >
> > GBTBLS   = wmogrib2.tbl;ncepgrib2.tbl;vcrdgrib1.tbl;cntrgrib2.tbl
> >
> > GBDIAG   =
> >
> > PDSEXT   = no
> >
> > OVERWR   = no
> >
> >
> > The resulting GEMPAK file has missing values along the 0 meridian
> > (from -90N to 90N) but is fine everywhere else (example attached).
> >
> > With nagrid, it doesn’t matter which field I look at as they all have
> > this issue (which also shows up using GDLIST).
> >
> > nagrid will not write the grids to a GEMPAK file using any other
> > setting except CPYFIL=#3 (for example CPYFIL=GDS, GAREA=GRID).
> >
> > Thanks.
> >
> > John Manobianco
> >
> > John Manobianco
> > Vice President/Business Development
> >
> > MESO, Inc.
> >
> > 185 Jordan Road
> >
> > Troy, NY 12180-7611
> >
> > (518) 283-5169
> >
> > address@hidden
> >
> > http://www.meso.com
> >
> >
> > Good Morning,
> >
> > I am using nagrib (v.6.8.0) to decode GFS 1 x 1 deg global data (360x181) .
> > The settings are as follows
> >
> > GBFILE   = avn.2012102300f00.grib2
> >
> > INDXFL   =
> >
> > GDOUTF   = dummy.grd
> >
> > PROJ     =
> >
> > GRDAREA  =
> >
> > KXKY     =
> >
> > MAXGRD   = 3000
> >
> > CPYFIL   = #3
> >
> > GAREA    =
> >
> > OUTPUT   = f
> >
> > GBTBLS   = wmogrib2.tbl;ncepgrib2.tbl;vcrdgrib1.tbl;cntrgrib2.tbl
> >
> > GBDIAG   =
> >
> > PDSEXT   = no
> >
> > OVERWR   = no
> >
> >
> > The resulting GEMPAK file has missing values along the 0 meridian
> > (from -90N to 90N) but is fine everywhere else (example attached).
> >
> > With nagrid, it doesn’t matter which field I look at as they all have
> > this issue (which also shows up using GDLIST).
> >
> > nagrid will not write the grids to a GEMPAK file using any other
> > setting except CPYFIL=#3 (for example CPYFIL=GDS, GAREA=GRID).
> >
> > Thanks.
> >
> > John Manobianco
> >
> > John Manobianco
> > Vice President/Business Development
> >
> > MESO, Inc.
> >
> > 185 Jordan Road
> >
> > Troy, NY 12180-7611
> >
> > (518) 283-5169
> >
> > address@hidden
> >
> > http://www.meso.com
> >
> >
> 
> Ticket Details
> ===================
> Ticket ID: ZTH-407575
> Department: Support GEMPAK
> Priority: Normal
> Status: Open
> 
> 

Ticket Details
===================
Ticket ID: ZTH-407575
Department: Support GEMPAK
Priority: Normal
Status: Open