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Walker, Your problem occurs with defining multiple levels, eg LEVELS=man. You can work around this limitation using the csh: %csh prompt--> foreach level ("1000" "925" "850" "700" "500" "300" "200") oabsnd << EOF LEVELS = $level r e EOF end The above will loop through each of the levels, running oabsnd each time. Steve Chiswell Unidata User Support On Mon, 16 Oct 2000, Walker Ashley wrote: > Hey Chiz... > > I am trying to perform a first guess in oabsnd and can't get it to work. I > have > done it before but for some reason it is not working now. Here are the > details. > > I have created a grid 1998053000_eta211.gem. I used a ruc grid to create the > grid for the data. Don't mind the eta211 extension ... it has that extension > so > I can use the eta211 macros in garp. So ... I want to perform oabsnd with a > ruc > grid for a first guess. I did the following. > > GEMPAK-OABSND>l > SNFILE = /cdrom/cdrom0/upperair/980530_upa.gem > GDFILE = /wx/washley/surface/1998053000_eta211.gem > SNPARM = hght > STNDEX = > LEVELS = man > VCOORD = PRES > DATTIM = 980530/1200 > DTAAREA = data > GUESS = /cdrom/cdrom0/grids/98053012_ruc.gem*980530/1200F000 > GAMMA = .1 > SEARCH = 50/EX > NPASS = 2 > > I run it and get: > OABSND PARAMETERS: > > Output grid file: /wx/washley/surface/1998053000_eta211.gem > Number of x, y points: 93 65 > Grid bnds: 12.19 -133.46 57.29 -49.38 Grid xtnd: 0 0 0 0 > Station spacing: 4.00 > Guess grid file: /cdrom/cdrom0/grids/98053012_ruc.gem > Guess time: 980530/1200F000 > Sounding file: /cdrom/cdrom0/upperair/980530_upa.gem > Data area: 11.00;-154.00;62.00;-48.00 > Level parameters: HGHT > Levels: 0 1000 925 850 700 500 > 400 > 300 > 250 200 150 100 > Vertical coordinate: PRES > > Station parameters: > Time: 980530/1200 > GAMMA: 0.10 SEARCH: 50.00 NPASS: 2 > Data extrapolation may occur. > Enter <cr> to accept parameters or type EXIT: > > Processing data at time 980530/1200 > [DG -7] Input grid cannot be found. > [OA -5] Guess grid could not be found. > Parameters requested: SNFILE,GDFILE,SNPARM,STNDEX,LEVELS,VCOORD,DATTIM, > DTAAREA,GUESS,GAMMA,SEARCH,NPASS. > > > If I run it without the first guess it works. Is there something stupid I am > doing wrong? Any help would be great. > > Walker > > >