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[IDV #JJB-785387]: WRF NetCDF files in IDV 2.7b1

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  • Subject: [IDV #JJB-785387]: WRF NetCDF files in IDV 2.7b1
  • Date: Mon, 08 Jun 2009 12:52:06 -0600
This is an WRF/NMM file, which we havent supported because of the staggering. 
However, its the input to WRF, and has only mass variables (I think - how does 
one know?), and it has 2d lat/lon vars, so in principle we should be able to 
handle it.

The remaining problems:

1) the lat/lon variables have a time dimension. this particular file only has 1 
time value (0000-00-00_00:00:00), im not sure what the general case is. Remi, 
do all these kinds of files only have one time dimension? If more than one, can 
the domain (ie lat/lon values) be time-dependednt?

2) several variables are vectors of categories, which Grid cannot yet handle, 
so this requires development on both CDM and IDV side.

> Unidata IDV Support wrote:
> > Hi Remi-
> >
> > Thanks for the sample file.
> >
> > I'm going to pass this over to the netcdf-java group to look
> > at.  You should be hearing from someone in that group about
> > why this is not shown as a grid.
> >
> > Don  Murray
> >
> >
> >> Unidata IDV Support wrote:
> >>
> >>> Hi-
> >>>
> >>>
> >>>
> >>>> I've tried many times to view the resulting files of the "geogrid.exe"
> >>>> or "metgrid.exe" commands of WRF in IDV but to no avail.
> >>>>
> >>>>
> >>> Were you able to read these in before, or is this a problem with
> >>> the 2.7 beta?
> >>>
> >>>
> >>>
> >> Nope, never worked...
> >>
> >>
> >>
> >>>> I systematically get the error message similar to:
> >>>> *No gridded data found for :
> >>>> /home/wrf/domain/SWIO/met_nmm.d01.2009-02-06_00:00:00.nc*
> >>>> I then try to load this as another data type as proposed but again, it
> >>>> does not work. What surprises me is that I am able to view the end
> >>>> results of the WRFPOST post-processing in IDV, I just cannot view the
> >>>> pre processing files.
> >>>>
> >>>> Any hint as to what to do / look for?
> >>>>
> >>>>
> >>> If this has never worked, I would suspect that the files are not
> >>> in any convention that the IDV supports.  If you can upload a sample
> >>> to:
> >>>
> >>> http://motherlode.ucar.edu/repository/alias/idvupload
> >>>
> >>>
> >>>
> >> It is done.
> >> I've called it "WRF pre-processing files" but its really just the
> >> geogrid nc file.
> >>
> >> Thanks.
> >>
> >>
> >>
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: JJB-785387
> > Department: Support netCDF Java
> > Priority: Normal
> > Status: Open
> >
> >
> >
> 
> --
> 
> MFI <http://www.mfi.fr>       Rémi MONTROTY
> Research Engineer -
> Numerical Modeling and Data Assimilation
> 9, rue Michel Labrousse -
> 31100 Toulouse - FRANCE
> Phone: +33 (0)5.61.43.29.61 - Fax: +33 (0)5.61.43.29.41
> Web: http://www.mfi.fr
> 
> 
> 
> Hi Remi-
> 
> Thanks for the sample file.
> 
> I'm going to pass this over to the netcdf-java group to look
> at.  You should be hearing from someone in that group about
> why this is not shown as a grid.
> 
> Don  Murray
> 
> > Unidata IDV Support wrote:
> > > Hi-
> > >
> > >
> > >> I've tried many times to view the resulting files of the "geogrid.exe"
> > >> or "metgrid.exe" commands of WRF in IDV but to no avail.
> > >>
> > >
> > > Were you able to read these in before, or is this a problem with
> > > the 2.7 beta?
> > >
> > >
> > Nope, never worked...
> >
> >
> > >> I systematically get the error message similar to:
> > >> *No gridded data found for :
> > >> /home/wrf/domain/SWIO/met_nmm.d01.2009-02-06_00:00:00.nc*
> > >> I then try to load this as another data type as proposed but again, it
> > >> does not work. What surprises me is that I am able to view the end
> > >> results of the WRFPOST post-processing in IDV, I just cannot view the
> > >> pre processing files.
> > >>
> > >> Any hint as to what to do / look for?
> > >>
> > >
> > > If this has never worked, I would suspect that the files are not
> > > in any convention that the IDV supports.  If you can upload a sample
> > > to:
> > >
> > > http://motherlode.ucar.edu/repository/alias/idvupload
> > >
> > >
> > It is done.
> > I've called it "WRF pre-processing files" but its really just the
> > geogrid nc file.
> >
> > Thanks.
> >
> >
> 


Ticket Details
===================
Ticket ID: JJB-785387
Department: Support netCDF Java
Priority: Normal
Status: Open