Using Regrid2 to display wind barbs

Mallikarjun arjunjt at CAOS.IISC.ERNET.IN
Fri Feb 25 01:55:16 EST 2005


 This error normally occurs when an expression requires to be defined.
You just try defining the expression to a new vaiable.

Ensure that if you are using another .ctl file you will have to use
the varible as <myvariable>.2

Try it.

On Fri, 25 Feb 2005, Tye Parzybok wrote:

> I'm trying to display wind barbs at a higher resolution than the native
> resolution (2.5 x 2.5 degrees) of my GRIB data using regrid2. This is my
> sequence of steps in GrADS:
> open <filename>.ctl
> set gxout barb
> d regrid2(ugrdprs(t=1,lev=1000);vgrdprs(t=1,lev=1000),0.5,0.5,bl)
> And I get this error message:
> Syntax Error:  Unmatched parens
>   Error ocurred at column 1
> DISPLAY error:  Invalid expression
>   Expression = regrid2(ugrdprs(t=1,lev=1000)
> Any ideas on how I can make this work?
> Thank you in advance for any help, advice or tips.
> -Tye

Centre for Atmospheric and Oceanic Sciences
Indian Institute of Science
Bangalore - 560 012

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