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Chris, You will want to use a GEMPAK time as YYMMDD/HHNN instead of the 4 digit year. You also may need a 4 character parameter name. Steve Chiswell Unidata User Support >From: Chris Hennon <address@hidden> >Organization: UCAR/Unidata >Keywords: 200310272036.h9RKabOb006872 >Hi, >What does this error mean: > >[GDEDIT -3] Valid grid identifier not found. > >when I run gdedit with the following fil file: > >Grid file: globe_ced.grd >GRID: TIME1 TIME2 LEVEL1 LEVEL2 VCORD PARM > 20031010/0000 0 PRES MPI >AREA: DSET GRID SIZE: 360 181 >COLUMNS: 1 360 ROWS: 1 181 > >Scale factor: 10**0 > >COLUMN: 1 2 etc.... >ROW 181 1025.0 1025.0 etc.... > >Thanks, >Chris > > >--------------------------------------------- >Christopher C. Hennon, Ph.D. >Atmospheric Sciences Program >Ohio State University >1036 Derby Hall >Columbus, OH 43210 > >Phone: 614.292.3133 > Fax: 614.292.6213 >Email: address@hidden >--------------------------------------------- > >