That question was answered earlier just today by Dennis. A legal variable name in a classic NetCDF file is supposed to begin with a letter [A-Za-z] and contain only letters, numbers, or the underscore character [A-za-z0-9_]. NCL can still read NetCDF variables that have other characters but you need to use the string referencing syntax.
In your case, just change:
uu = f1->x-wind(0,0,:,:)
to
uu = f1->$"x-wind"$(0,0,:,:)
-dave
On Nov 1, 2012, at 5:56 PM, Yang Yang wrote:
> Hi There:
>
> I have a nc file with a zonal wind component named as "x-wind".
> When I read it in NCL as:
> uu = f1->x-wind(0,0,:,:)
> It had errors: fatal:Undefined identifier: (wind) is undefined, can't continue.
> The "x-wind" cannot be recognized by NCL. NCL took "-" as minus or somethingelse.
> Can anyone tell me how to read this data in NCL? Thanks!
>
> Regards
> Ed
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Received on Thu Nov 1 18:05:11 2012
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