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[GEMPAK #IZI-585368]: Plot of precipitable water along cross section line

Hi Ben,

This is not an easy one, and there is no straight-forward way to accomplish 
this with GEMPAK.  GDCROSS has no method to output incremental coordinate along 
CXSTNS, unfortunately.  But if you were to calculate a series of points from 
your specified CXSTNS outside of GEMPAK, the capability to plot y-axis values 
along x-axis distance doesn't exist.  The only idea I have, which is rather 
kludgy, would be to convert PWTR across a distance to "time domain" and 
overlay, with considerable tweaking of chart position, with GDTSER.  That's 
about the only solution I can come up with at this point.

Best,

Michael James
Unidata



> I am plotting vertical cross sections from various reanalysis datasets with 
> gdcross and would like to supplement these cross sections with plots of 
> precipitable water (PW) along the cross section, where the x axis would be 
> distance along the cross section and the y axis would be the PW value.  Do 
> you know of a way to do this?  If I could at least obtain the lat/lon 
> coordinates to which the data along the cross section line were interpolated, 
> then I could just plug those coordinates into gdpoint to get the PW values 
> along the cross section.  Is there a way to obtain these coordinates from 
> gdcross?
> 
> I appreciate your assistance!
> 
> -Ben
> 
> 


Ticket Details
===================
Ticket ID: IZI-585368
Department: Support GEMPAK
Priority: Normal
Status: Open