Re: BUFR dataset

[Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>]

On Mon, 21 Sep 2009, Steve Sullivan wrote:

> Hi Robb,
>
> A fellow with the European space agency sent me the attached
> BUFR dataset.  My BUFR decoder chokes on it, but I suspect the
> dataset is valid.  Would you be willing to run it through your
> decoder and send me the output?  If possible, with as much debug
> detail as you can get on BUFR descriptors, values, and if
> possible even bit offsets into the dataset?
>
> Many thanks,
>
> Steve
>
> --
> Steve Sullivan   steves@xxxxxxxx     303-497-2823
>
> FL/2, Research Applications Laboratory
> National Center for Atmospheric Research
> PO Box 3000
> Boulder CO  80307
> USA

Steve,

per our discussion, the following information should provide the clues for 
you to solve the problem. Also, as we discussed the ECMWF has a bufr 
decoder that you should reference as well as the source code for the 
netcdf-java library.  Let me know your results.

Robb...



   short Pressure;
     :units = "Pa";
     :missing_value = 16383s; // short
     :scale_factor = 10.0f; // float
     :BUFR:TableB_descriptor = "0-10-4";
     :BUFR:bitWidth = 14; // int

 data:
java.nio.BufferOverflowException
	at java.nio.Buffer.nextPutIndex(Buffer.java:495)
	at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:145)
	at ucar.nc2.iosp.bufr.BufrIosp.readDataCompressed(BufrIosp.java:442)
	at ucar.nc2.iosp.bufr.BufrIosp.readOneObs(BufrIosp.java:252)
	at ucar.nc2.iosp.bufr.BufrIosp.readData(BufrIosp.java:176)
	at ucar.nc2.NetcdfFile.readData(NetcdfFile.java:1743)
	at ucar.nc2.Variable._read(Variable.java:939)
	at ucar.nc2.Variable._read(Variable.java:960)
	at ucar.nc2.Variable.read(Variable.java:789)
	at ucar.nc2.iosp.IospHelper.readSection(IospHelper.java:604)
	at 
ucar.nc2.iosp.AbstractIOServiceProvider.readSection(AbstractIOServiceProvider.java:152)
	at ucar.nc2.NetcdfFile.readSection(NetcdfFile.java:1859)
	at ucar.nc2.ui.NCdumpPane$NCdumpTask.run(NCdumpPane.java:245)
	at java.lang.Thread.run(Thread.java:619)


INFO: thredds.filesystem.CacheManager [  name = directories cacheHits = 0 
onDiskHits = 0 inMemoryHits = 0 misses = 0 size = 0 averageGetTime = 0.0 
evictionCount = 0 ]
Sep 24, 2009 9:51:26 AM ucar.nc2.iosp.bufr.tables.CodeFlagTables init
WARNING: NumberFormatException on '15-59' for CodeTable 0 11 039 in 
/resources/bufrTables/codes/Code-FlagTables.xml
EXTRA bits 0 at 1857
EXTRA bits 0 at 2040
EXTRA bits 0 at 2748
EXTRA bits 0 at 3456




===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
rkambic@xxxxxxxxxxxxxxxx                   WWW: http://www.unidata.ucar.edu/
===============================================================================