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20001017: first guess field
- Subject: 20001017: first guess field
- Date: Tue, 17 Oct 2000 10:53:37 -0600
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
>
>
>