[IDV #CLW-872110]: Error loading local model data (netcdf)

Hi Steve-

> Thank you!  As I have played around more with IDV I quickly discovered I
> would be better off with gempak or Grib output.  My initial interest in
> IDV was to get a quick look at the output before doing all the
> post-processing to see if I was achieving desired results (with some
> historical runs), but I quickly have learned that IDV is such a powerful
> tool, I may use it to look at all my output (and post-processing does
> not take all that long).

Glad you are finding the IDV useful.   Tomorrow's build should allow you to do 
the quick looks.  Let us know if that doesn't work.

Don

> Unidata IDV Support wrote:
> > Hi Steve-
> >
> >
> >> Full Name: Steve Keighton
> >> Email Address: address@hidden
> >> Organization: NOAA/NWS Blacksburg, VA
> >> Package Version: 2.7u2 build date:2009-08-26 16:33 UTC
> >> Operating System: Windows XP
> >> Hardware: Java: home: C:\Program Files\IDV_2.7u2\jre version: 1.6.0_13 
> >> j3d:1.5.2 fcs (build4)
> >> Description of problem: There was an error loading the data:
> >> Error creating data source:aggregated.netcdf.grid with: 
> >> [R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_12, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_13, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_14, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_15, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_16, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_17, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_18, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_19, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_20, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_21, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_22, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-19_23, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_00, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_01, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_02, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_03, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_04, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_05, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_06, 
> >> R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_07, R:\WRF\Camille_12Z\wrfout_d0
 3_
> 1
> >>
> >  969-08-20_08, R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_09, 
> > R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_10, 
> > R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_11, 
> > R:\WRF\Camille_12Z\wrfout_d03_1969-08-20_12]
> >
> >> Grid data source failed making data set: 
> >> \\Wrnksevr1\users\stephen.keighton\.unidata\idv\DefaultIdv\tmp\multigrid0.ncml
> >> AggregationExisting: no coordinate variable for agg dimension= time
> >>
> >
> > WRF netCDF grids are problematic to aggregate since the time variable is 
> > different than what the aggregator expects.  In the next nightly build, 
> > there will be a new Data Source Type called "Aggregate WRF netCDF Grids by 
> > Time".  If you use that, it will do what you want.  You can download the 
> > nightly build from the IDV downloads page:
> >
> > http://www.unidata.ucar.edu/downloads/idv
> >
> > However, using the raw WRF netCDF grids is a resource intensive way to look 
> > at the data. The grids are staggered and do not contain the standard 
> > meteorological parameters and levels that most people use.  As with most 
> > other packages, we recommend running a postprocessor on your WRF output to 
> > destagger the grids and calculate the standard met variables/levels.  See 
> > the FAQ item at:
> >
> > http://www.unidata.ucar.edu/software/IDV/docs/userguide/Faq.html#wrf
> >
> > Don Murray
> >
> >
> >
> >
> >
> >
> >> ******************
> >> Stack trace:
> >> java.lang.IllegalArgumentException: AggregationExisting: no coordinate 
> >> variable for agg dimension= time
> >> at 
> >> ucar.nc2.ncml.AggregationExisting.buildNetcdfDataset(AggregationExisting.java:83)
> >> at ucar.nc2.ncml.Aggregation.finish(Aggregation.java:295)
> >> at ucar.nc2.ncml.NcMLReader.readNetcdf(NcMLReader.java:466)
> >> at ucar.nc2.ncml.NcMLReader.readNcML(NcMLReader.java:413)
> >> at ucar.nc2.ncml.NcMLReader.readNcML(NcMLReader.java:234)
> >> at ucar.nc2.ncml.NcMLReader.readNcML(NcMLReader.java:184)
> >> at ucar.nc2.dataset.NetcdfDataset.acquireNcml(NetcdfDataset.java:818)
> >> at ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:694)
> >> at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:434)
> >> at ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:544)
> >> at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:88)
> >> at 
> >> ucar.unidata.data.grid.GeoGridDataSource.doMakeDataSet(GeoGridDataSource.java:1052)
> >> at 
> >> ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSource.java:1074)
> >> at 
> >> ucar.unidata.data.grid.GeoGridDataSource.initAfterCreation(GeoGridDataSource.java:443)
> >> at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1525)
> >> at 
> >> ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1968)
> >> at 
> >> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1885)
> >> at 
> >> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1819)
> >> at 
> >> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1792)
> >> at ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:907)
> >> at 
> >> ucar.unidata.idv.chooser.FileChooser.selectFilesInner(FileChooser.java:648)
> >> at ucar.unidata.idv.chooser.FileChooser.selectFiles(FileChooser.java:517)
> >> at 
> >> ucar.unidata.idv.chooser.FileChooser.doLoadInThread(FileChooser.java:539)
> >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> >> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> >> at java.lang.reflect.Method.invoke(Unknown Source)
> >> at ucar.unidata.util.Misc$2.run(Misc.java:1033)
> >> at ucar.unidata.util.Misc$3.run(Misc.java:1061)
> >>
> >>
> >>
> >>
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: CLW-872110
> > Department: Support IDV
> > Priority: Normal
> > Status: Open
> >
> >
> 
> --
> 
> 


Ticket Details
===================
Ticket ID: CLW-872110
Department: Support IDV
Priority: Normal
Status: Closed