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Bob, The message you are getting is that there are no 500mb TMPC grids matching at the last forecast time in the file, which is true since the grid that would exist is TMPK. If you want to see all the grids in the file, type at the gdinfo prompt" "restore defaults/gdinfo" or gdattim = all glevel = all gvcord = all gfunc = all If you just want to see the 500mb TMPK grids at all forecast times for example: GDFILE = eta LSTALL = yes OUTPUT = t GDATTIM = all GLEVEL = 500 GVCORD = pres GFUNC = tmpk GEMPAK-GDINFO>r GRID FILE: $MODEL/2001070212_eta211.gem GRID NAVIGATION: PROJECTION: LCC ANGLES: 25.0 -95.0 25.0 GRID SIZE: 93 65 LL CORNER: 12.19 -133.46 UR CORNER: 57.29 -49.38 GRID ANALYSIS BLOCK: UNKNOWN ANALYSIS TYPE Number of grids in file: 1704 Maximum number of grids in file: 2000 NUM TIME1 TIME2 LEVL1 LEVL2 VCORD PARM 97 010702/1200F000 500 PRES TMPK 248 010702/1200F006 500 PRES TMPK 404 010702/1200F012 500 PRES TMPK 560 010702/1200F018 500 PRES TMPK 713 010702/1200F024 500 PRES TMPK 869 010702/1200F030 500 PRES TMPK 1024 010702/1200F036 500 PRES TMPK 1179 010702/1200F042 500 PRES TMPK 1334 010702/1200F048 500 PRES TMPK 1489 010702/1200F054 500 PRES TMPK 1644 010702/1200F060 500 PRES TMPK Parameters requested: GDFILE,LSTALL,OUTPUT,GDATTIM,GLEVEL,GVCORD,GFUNC. GEMPAK-GDINFO> Steve Chiswell Unidata User SUpport >From: Robert Ballentine <address@hidden> >Organization: UCAR/Unidata >Keywords: 200107021552.f62Fq1111485 >Support: > I cannot get gdinfo to work with ncep model data. When I run it, I get >message about no matching grids found. Here is a script showing this. > >Script started on Mon Jul 2 11:48:38 2001 >[ldm@met-62 model]$ source /apps/NAWIPS/Gemenviron >[ldm@met-62 model]$ gdinfo > GDFILE Grid file 2001070212_eta211.gem > LSTALL Full list flag YES > OUTPUT Output device/filename T > GDATTIM Grid date/time LAST > GLEVEL Grid level 500 > GVCORD Grid vertical coordinate PRES > GFUNC Scalar grid TMPC > Parameters requested: GDFILE,LSTALL,OUTPUT,GDATTIM,GLEVEL,GVCORD,GFUNC. > GEMPAK-GDINFO>r > > GRID FILE: 2001070212_eta211.gem > > > GRID NAVIGATION: > PROJECTION: LCC > ANGLES: 25.0 -95.0 25.0 > GRID SIZE: 93 65 > LL CORNER: 12.19 -133.46 > UR CORNER: 57.29 -49.38 > > GRID ANALYSIS BLOCK: > UNKNOWN ANALYSIS TYPE > > Number of grids in file: 937 > > Maximum number of grids in file: 2000 > > [GDU 2] Did not find any matching grids. > Parameters requested: GDFILE,LSTALL,OUTPUT,GDATTIM,GLEVEL,GVCORD,GFUNC. > GEMPAK-GDINFO>exit >[ldm@met-62 model]$ exit >exit > >Script done on Mon Jul 2 11:49:13 2001 > >Is there an updated version of gdinfo, or am I doing something wrong? >Thanks, >Bob >