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[IDV #JCQ-550294]: dd

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [IDV #JCQ-550294]: dd
  • Date: Fri, 13 Dec 2013 12:16:16 -0700
Dawran,

Please give us more information on what you are trying to achieve.

To read in a GrADS binary dataset, select the CTL (Data Descriptor File) in the 
file chooser. Please specify the file format of "GrADS Binary Grid Files" in 
the Data Choosers tab.

If you are still having trouble please upload the .dat/.ctl pair to 
http://motherlode.ucar.edu/repository/alias/idvupload and let us know when it 
is there.

Best Wishes,

Unidata IDV Support


> Full Name: dawran
> Email Address: address@hidden
> Organization: qxt
> Package Version: 4.1 build date:2013-08-02 18:38 UTC
> Operating System: Windows 7
> Hardware: Java: home: C:\Program Files\IDV_4.1\jre version: 1.6.0_43 
> j3d:1.5.2 fcs (build4)
> Description of problem: There was an error loading the data:
> Error creating data source:file.grads with: E:\0717\grib\27.ctl
> Grid data source failed making data set: E:\0717\grib\27.ctl
> Cant read E:/0717/grib/27.ctl: not a valid CDM file.
> 
> ******************
> Stack trace:
> java.io.IOException: Cant read E:/0717/grib/27.ctl: not a valid CDM file.
> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:803)
> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:422)
> at ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:699)
> at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:421)
> at ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:516)
> at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:117)
> at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:103)
> at 
> ucar.unidata.data.grid.GeoGridDataSource.doMakeDataSet(GeoGridDataSource.java:1154)
> at 
> ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSource.java:1176)
> at 
> ucar.unidata.data.grid.GeoGridDataSource.initAfterCreation(GeoGridDataSource.java:502)
> at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1597)
> at 
> ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1980)
> at 
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1897)
> at 
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1831)
> at 
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1804)
> at ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:943)
> at ucar.unidata.idv.chooser.FileChooser.selectFilesInner(FileChooser.java:656)
> at ucar.unidata.idv.chooser.FileChooser.selectFiles(FileChooser.java:525)
> at ucar.unidata.idv.chooser.FileChooser.doLoadInThread(FileChooser.java:547)
> 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:1223)
> at ucar.unidata.util.Misc$3.run(Misc.java:1251)
> 
> 
> 


Ticket Details
===================
Ticket ID: JCQ-550294
Department: Support IDV
Priority: Normal
Status: Closed