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20040729: IDV cross section units

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  • Subject: 20040729: IDV cross section units
  • Date: Fri, 30 Jul 2004 05:43:46 -0600
>From: NATHAN LOUIS UHLENBROCK <address@hidden>
>Organization: SSEC
>Keywords: 200407291609.i6TG9waW009639 IDV cross section

Hi Nate-

>I am using the IDV to display u-direction winds in a cross-section from archiv
> ed RUC data.  When the view box for the cross section comes up and displays t
> he winds in the graph, the z-axis is altitude.  I was wondering what the unit
> s are, i.e., meters above sea level, meters agl, etc.
>Thanks!

The values are in meters above sea level in the standard atmosphere.
The orginal data is probably on a pressure coordinate and in the
IDV we use the standard atmospher to convert to msl.   Since it
is a straight conversion, you could also think of the vertical 
axis as a pressure axis with the pressure lines being horizontal.

Don
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