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[IDV #WXG-265938]: IDV not displaying NOAA-CIRES 20CR fields properly

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  • Subject: [IDV #WXG-265938]: IDV not displaying NOAA-CIRES 20CR fields properly
  • Date: Thu, 12 Aug 2010 13:47:10 -0600
Hi, Kevin

Yuan and I reproduced the horizontal line problem you see. We are pursuing a 
bug fix, but in the meantime, we can offer a couple of workarounds:

1/ Select fast rendering (Dashboard / Display / Edit / Properties / Settings)
2/ Spatially subset the data (Dashboard / Data sources / Properties / Spatial 
Subset) 

Thanks,

-Julien

PS, I am new to Unidata, and the IDV team.

> Hi Don,
> 
> The units are correct now.
> 
> Perhaps an unrelated bug, but I notice if I change projections (e.g., to
> US), a number of horizontal lines appear on the plot.  I've attached an
> exmaple . . .
> 
> Thanks,
> 
> Kevin
> 
> On 07/26/2010 06:06 PM, Unidata netCDF Java Support wrote:
> > Kevin-
> >
> > The IDV nightly build has this fix.  Please test it if you have a chance.
> >
> > Don Murray
> >
> >
> >> Thanks, John!
> >>
> >> On 07/21/2010 06:49 PM, Unidata netCDF Java Support wrote:
> >>
> >>> This bug is fixed in current 4.2 code. We are trying to get a stable 
> >>> version of it released. Will let you know when its ready. thanks for your 
> >>> patience.
> >>>
> >>> John
> >>>
> >>>
> >>>
> >>>> Hi all,
> >>>>
> >>>> When I load in NetCDF files from the 20th century reanalysis dataset
> >>>> from the NCDC NOMADS TDS, I can read and plot data, but the data values
> >>>> are not correct.   For example, 850 mb temperature grids found in the
> >>>> air.YYYY.nc files will plot as if their temperatures fall between 430
> >>>> and 430.7 K, with a default contour interval of .04 K.  Similar
> >>>> unrealistic data ranges/contour levels will appear when other fields in
> >>>> the 20CR data set are loaded.
> >>>>
> >>>> The netCDF files look fine, and they plot OK with other tools (I tried
> >>>> ncview).  I suspect there is some issue with how IDV is interpreting the
> >>>> netcdf file.  Note that the "add_offset" value (427.66) in the air.nc
> >>>> files is suspiciously close to the 430K level that IDV is coming up with
> >>>> . . .
> >>>>
> >>>> Any ideas?
> >>>>
> >>>> Thanks,
> >>>>
> >>>> --Kevin
> >>>>
> >>>> ______________________________________________________________________
> >>>> Kevin Tyle, Systems Administrator               **********************
> >>>> Dept. of Atmospheric&   Environmental Sciences   address@hidden
> >>>> University at Albany, ES-235                    518-442-4578 (voice)
> >>>> 1400 Washington Avenue                          518-442-5825 (fax)
> >>>> Albany, NY 12222                                **********************
> >>>> ______________________________________________________________________
> >>>>
> >>>>
> >>>>
> >>>>
> >>> Ticket Details
> >>> ===================
> >>> Ticket ID: WXG-265938
> >>> Department: Support netCDF Java
> >>> Priority: High
> >>> Status: Closed
> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >
> > Ticket Details
> > ===================
> > Ticket ID: WXG-265938
> > Department: Support netCDF Java
> > Priority: High
> > Status: Open
> >
> >
> >
> 
> 


Ticket Details
===================
Ticket ID: WXG-265938
Department: Support IDV
Priority: Critical
Status: Open