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[IDV #ZQI-100044]: error to load files

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  • Subject: [IDV #ZQI-100044]: error to load files
  • Date: Thu, 18 Dec 2014 10:42:59 -0700
Ashwinee,

Did you try our earlier suggestions? Here is the text from our previous
conversation.

-----------------
We spent quite a bit more time looking at this file and there are many problems.

0/ The data file says that it is "CF-1.4", but it is not.

1/ The attributes for the Mercator projection are defined are defined globally,
but they should be defined with the rcm_map variable which defines the grid
mapping. The attached ncml file fixes, at least, the projection problems.

2/ There are no data relating to the variables (e.g., "maximum surface
temperature"). In particular the time dimension for the variables are zero.

I am able to open the file by pointing to the attached ncml file in the IDV, but
I cannot display much on account of problem 2/. But I can render or visualize
the some of the 2D fields (e.g., "Domain land/ocean mask").

In summary, the file is not CF compliant even though it claims to, the
projection is not defined correctly, and there are no data in the data 
variables.
-----------------

Best,

Unidata IDV Support

> Full Name: Ashwinee
> Email Address: address@hidden
> Organization: University of mauritius
> Package Version: 5.0u2 build date:2014-11-12 20:09 UTC
> Operating System: Windows 7
> Hardware: Java: home: C:\Program Files (x86)\IDV_5.0u2\jre version: 1.7.0_51 
> j3d:1.6.0-pre9-daily-experimental daily
> Description of problem: There was an error loading the data:
> Error creating data source:file.grid with: I:\mauritius_ATM.2000080100.nc
> Grid data source failed making data set: I:\mauritius_ATM.2000080100.nc
> Mercator projection must have attribute standard_parallel or 
> scale_factor_at_projection_origin
> Should we convert the nc file to something?
> 
> ******************
> Stack trace:
> java.lang.IllegalArgumentException: Mercator projection must have attribute 
> standard_parallel or scale_factor_at_projection_origin
> at 
> ucar.nc2.dataset.transform.Mercator.makeCoordinateTransform(Mercator.java:63)
> at 
> ucar.nc2.dataset.CoordTransBuilder.makeCoordinateTransform(CoordTransBuilder.java:217)
> at 
> ucar.nc2.dataset.CoordSysBuilder.makeCoordinateTransforms(CoordSysBuilder.java:930)
> at 
> ucar.nc2.dataset.CoordSysBuilder.buildCoordinateSystems(CoordSysBuilder.java:516)
> at ucar.nc2.dataset.NetcdfDataset.enhance(NetcdfDataset.java:469)
> at ucar.nc2.dataset.NetcdfDataset.<init>(NetcdfDataset.java:1446)
> at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:427)
> 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:1160)
> at 
> ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSource.java:1182)
> at 
> ucar.unidata.data.grid.GeoGridDataSource.initAfterCreation(GeoGridDataSource.java:502)
> at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1602)
> 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:1215)
> at ucar.unidata.util.Misc$3.run(Misc.java:1243)
> 
> 
> 


Ticket Details
===================
Ticket ID: ZQI-100044
Department: Support IDV
Priority: Normal
Status: Closed