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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
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