[ncl-talk] RUC2-Analysis Data Incorrectly Interpolated to Surface

[Michelle Serino]

Good afternoon,

I am plotting RUC2-Analysis data on a skew-T.  Because this is analysis
data, it seems that the data are always interpolated to the 1000-mb
surface, regardless of the chosen location.  For example, in a high
elevation location like Denver, the data extend down to 1000 mb, which is
unrealistic.  This creates incorrect surface values, which results in a
very incorrect value of surface CAPE.

I am wondering if, while still plotting on a skew-T, there is a way to
specify the data that is plotted.  Or, if there is another, more realistic,
way around this.  With a real sounding, I would not have this problem, so I
am sure there is a way to fix this for the analysis data.  I have attached
the script I am using, along with its plot and an observed sounding for the
same location (Denver).  The direct link to the analysis data I am using is
provided below.  I appreciate any help!

https://www.dropbox.com/s/qpe96hmhh9hsi0h/ruc2anl_130_20090605_1200_000.grb2?dl=0

Best regards,

Michelle Serino

Michelle Serino
M.S. Candidate
Texas A&M University
Atmospheric Sciences Dept.
Eller O&M, Suite 1017
College Station, TX 77843
(484) 769-0949
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