Re: skewt plot

On 6/16/10 11:03 PM, Li, Yongzuo wrote:
> Hi,
>
> I have three question about SkewT:
>
> (1) Can I plot up to only 300 hPa ?

No. The code is designed to drw the full sket-T.
I think the full image could be draw and then use
some external tool to select the section
of the plot you want.

>
> (2) T is not plotted at the levels when Td is missing?
>
Correct. You would have to calculate Td

http://www.ncl.ucar.edu/Document/Functions/Built-in/dewtemp_trh.shtml
>
> (3) Can I use specific humidity instead of Td?

No.

Use
http://www.ncl.ucar.edu/Document/Functions/Built-in/relhum.shtml

to calculate rh and 'dewtemp_trh" to calculate dew point.

Good luck
>
> Thanks
>
> Yongzuo
>
>
>
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Received on Thu Jun 17 07:34:21 2010