20040429: GDPROF Method

[Unidata Support <support@xxxxxxxxxxxxxxxx>]

Patrick,

The latter. The gdprof routine gdpdta.f calls dgcxtp.f
and will get the lat/lon and real value row/colum of the gpoint (eg
not limited to integer i,j locations), which in turn is
used in the call to $GEMPAK/source/gemlib/gr/grintp.f which
performs a bilinear interpolation from the grid point values to the
gpoint location.

Steve Chiswell
Unidata User Support.





>From: "Patrick O'Reilly" <patrick.oreilly@xxxxxxx>
>Organization: UCAR/Unidata
>Keywords: 200404291944.i3TJirtK017446

>Hi,
>
>I searched the archives high and low, maybe I missed it, but all I wanted to
>know was when you draw a profile using GDPROF, and specify station or
>lat/lon, does the program draw the profile at the nearest grid point, or
>does it interpolate to the exact location you specify.  I am guessing the
>former. Thanks!
>
>Patrick
>_________________________________________
>Patrick O'Reilly
>Meteorological Decision Support Scientist
>The STORM Project at UNI
>patrick.oreilly@xxxxxxx    319-273-3789
>http://www.uni.edu/storm
>
>"No trees were killed in the making of this e-mail...however,
> a large number of electrons were horribly inconvenienced."
>
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