[gradsusr] "concatenating" and xdfopen

[Jeff Duda]

That didn't work. I presume it is related to using the same array twice in
the control file (time for both TDEF and EDEF). The problem is the data
file only has four arrays, and I'm using all of them already:

dimensions:
        lat = 741 ;
        lon = 800 ;
        time = 1 ;
variables:
        double Reflectivity(time, lat, lon) ;
                Reflectivity:long_name = "Nexrad 2 radar dataset" ;
                Reflectivity:missing_value = -999. ;
                Reflectivity:units = "dBz" ;
        double lat(lat) ;
                lat:units = "degrees_north" ;
                lat:spacing = "0.015771162376211467" ;
                lat:datum = "NAD83 - NOAA Standard" ;
        double lon(lon) ;
                lon:units = "degrees_east" ;
                lon:spacing = "0.015771162376211467" ;
                lon:datum = "NAD83 - NOAA Standard" ;
        int time(time) ;
                time:units = "seconds since 1970-1-1" ;

Am I just out of luck here?

ga-> xdfopen obs_radar_ens.ctl
Scanning Descriptor File:  obs_radar_ens.ctl
read_metadata: gaopfn failed (rc=-88888)
gadsdf: Couldn't ingest SDF metadata.
SDF Descriptor file obs_radar_ens.ctl was not successfully opened & parsed.

Jeff

On Mon, Feb 29, 2016 at 1:29 PM, Jennifer M Adams <jadams21 at gmu.edu> wrote:

> Jeff,
> You can use ‘time’ for the <SDF_dimension_name> in your edef statement —
> it won’t really matter what name you use as long as the name matches one of
> the dimensions in the file and you provide all the remaining needed
> metadata for the ensemble axis: <size> names <list of names>.
> —Jennifer
>
>
> On Feb 29, 2016, at 2:07 PM, Jeff Duda <jeffduda319 at gmail.com> wrote:
>
> I have a set of radar reflectivity netcdf files from multiple NEXRAD sites
> and over multiple times. I wish to display the maximum reflectivity over a
> window of time and over all radar sites. Here is the control file I wrote:
>
> dset /scratch/jdduda/%e_201006%ch_800_40.nc
> options template
> CHSUB 1 1 13_1800
> CHSUB 2 2 13_1900
> CHSUB 3 3 13_2000
> CHSUB 4 4 13_2100
> CHSUB 5 5 13_2200
> CHSUB 6 6 13_2300
> CHSUB 7 7 14_0000
> xdef lon 800 linear -106.099096849811 0.015771162376
> ydef lat 741 linear 31.231419002562 0.015771162376
> tdef time 7 linear 18Z13JUN2010 1hr
> edef 2 names KAMA KDDC
> VARS 1
> Reflectivity=>z
> ENDVARS
>
>
> Since the data files were created using the NCDC Weather Radar and Climate
> Toolkit, I'm using xdfopen to display the data. If I remove one of the
> dimensions (i.e., either time or radar site), then I can display a maximum
> (either across multiple sites at one time or across multiple times at one
> site) by using the time dimension as a dummy dimension. However, I see from
> the xdfopen documentation that the syntax above for EDEF isn't acceptable
> as it is for full blown data that you'd need a complete control file for.
> However, the data files themselves do not have an ensemble dimension, and
> therefore I don't know how to follow the indicated convention for the EDEF
> line:
>
> edef <*SDF_dimension_name*>
> edef <*SDF_dimension_name*> <*size*>
> edef <*SDF_dimension_name*> <*size*> names <*list of names*>
>
> Does anyone have any suggestions? I tried inserting an empty string (''),
> but that didn't work.
>
> Jeff Duda
> --
> Jeff Duda
> Graduate research assistant
> University of Oklahoma School of Meteorology
> Center for Analysis and Prediction of Storms
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>
>
> --
> Jennifer Miletta Adams
> Center for Ocean-Land-Atmosphere Studies (COLA)
> George Mason University
>
>
>
>
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>


-- 
Jeff Duda
Graduate research assistant
University of Oklahoma School of Meteorology
Center for Analysis and Prediction of Storms
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