Re: [idvusers] Formating NetCDF headers for Point Data

• To: idvusers@xxxxxxxxxxxxxxxx
• Subject: Re: [idvusers] Formating NetCDF headers for Point Data
• From: John Caron <caron@xxxxxxxxxxxxxxxx>
• Date: Wed, 18 Feb 2009 09:13:55 -0700

Just to emphasize that the proposed CF Conventions for Point Data:

  http://cf-pcmdi.llnl.gov/trac/wiki/PointObservationConventions

are not yet accepted/official, but feedback now on them would be appreciated. 
Send to me, or post
directly to the wiki if you are part of the CF discussion.

thanks,
John

Don Murray wrote:
> Hi Bill-
> 
> This is timely because we are actively working on redoing the
> support for point data in the IDV.  There is a new API in the
> netCDF-Java 4.0 library that we are using to support this.
> This will work with the proposed CF convention for point data
> as well as the older formats.  This work is available in the
> nightly build, but not the 2.6u2 release.
> 
> Capehart, William J wrote:
> 
>> I'm trying to package some point data for IDV using netCDF.
>>
>>  
>>
>> Are there any examples of setting this up except for
>> http://www.unidata.ucar.edu/software/netcdf/examples/files.html
> 
> Check out the proposed CF formats at:
> 
> https://cf-pcmdi.llnl.gov/trac/wiki/PointObservationConventions
> 
>>
>> Specifically what we want to do is take a days worth of point data at
>> different stations and collect them in a single file for use in IDV (and
>> other tools)
>> e.g., for a given parameter
>> float temperature(station,time) ; 
>> Would such a setup work or am I limited one time step per file as the
>> madis examples seem to imply.
> 
> This would fit with the "5.8.2.1 Multidimensional representation"
> section above.
> 
>> Better still, is there a utility in GEMPAK or elsewhere that takes a
>> GEMPAK point data file (e.g, 20090215_sao.gem) and convert it to a
>> netcdf file viewable in NETCDF?
> 
> I'm currently working on a direct reader for GEMPAK surface files so you
> won't need to convert.  I hope to have something done by mid to late
> March.
> 
> Don
> *************************************************************
> Don Murray                               UCAR Unidata Program
> dmurray@xxxxxxxxxxxxxxxx                        P.O. Box 3000
> (303) 497-8628                              Boulder, CO 80307
> http://www.unidata.ucar.edu/staff/donm
> *************************************************************
> 
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• References:
  • [idvusers] Formating NetCDF headers for Point Data
    • From: Capehart, William J
  • Re: [idvusers] Formating NetCDF headers for Point Data
    • From: Don Murray