[GEMPAK #WIN-831141]: bug in gdprof for soundings at a grid point

David,

I have an update for the $GEMPAK/source/programs/gd/gdprof/gdpdta.f routine. 
The gdpoint program is not 
affected because it does not try to recompute the point location later as 
gdprof does for the output listing.

I have attached the source code to update 5.9.3/5.9.4. If you need me to 
provide a specific binary
platform let me know, otherwise it will be in the 5.10.1 binary release I'm 
working on.


Steve Chiswell
Unidata User Support




> David,
> 
> Previously I modified the internal navigation to fix the grid interpolation 
> problem you were seeing
> for vectors between grid points by creating a new grid subregion centered on 
> the gpoint (eg so
> the gpoint location would be on a remapped grid point and the vectors 
> wouldn't be using interpolated
> components between grid points).
> 
> In doing that, I created a new internal navigation, which is conflicting with 
> the later query of
> the user point back into the original navigation (now the new grid is a 3x3 
> grid about the GPOINT
> rather than the original model domain, so your GPOINT=@x;y is not defined in 
> the new space).
> In fact, the output you are seeing for the GPOINT=lat;lon case should be 
> showing a pair of
> grid points in the new 3x3 domain now instead of the original grid if you 
> look at that too!
> 
> I'll have to save the original navigation, and restore it after I do the 
> interpolation
> (I'll apply this to the gdpoint program as well since I made the same change 
> there).
> 
> I'll get that done tomorrow (trying to beat the snow and subzero temps home 
> today ;-)
> 
> Thanks for pointing this out.
> 
> Steve Chiswell
> Unidata User SUpport
> 
> 
> 
> 
> > I'd like To follow up with some info on this bug.  It was introduced
> > in 5.9.1, 5.8.4 still worked fine.
> >
> > David
> >
> > On Wed, Jan 31, 2007 at 04:11:29PM -0700, Unidata GEMPAK Support wrote:
> > >
> > > David Ovens,
> > >
> > > Your Ticket has been received and a member of our staff will review it 
> > > and reply accordingly. Listed below are details of this Ticket. Please 
> > > make sure the Ticket ID remains in the Subject: line in all future 
> > > correspondence regarding this inquiry.
> > >
> > >   Ticket ID: WIN-831141
> > >   Subject: bug in gdprof for soundings at a grid point
> > >   Department: Support GEMPAK
> > >   Priority: Normal
> > >   Status: Open
> > >
> > >
> > >
> > > Please do let us know if we can assist you any further,
> > >
> > > Unidata User Support
> >
> >
> 


Ticket Details
===================
Ticket ID: WIN-831141
Department: Support GEMPAK
Priority: Normal
Status: Closed