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[netCDFJava #TYF-271558]: Nexrad level 3 reading error

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  • Subject: [netCDFJava #TYF-271558]: Nexrad level 3 reading error
  • Date: Tue, 05 Nov 2013 15:13:15 -0700
Hi Jonathan,

I took the file you sent and stepped through our radar file reader.  The error 
you are seeing comes up when the code thinks it finds a product with product 
code -252.  I checked the NCDC level 3 radar products 
(http://www.ncdc.noaa.gov/oa/radar/productsdetail.html), and I could not find 
the code listed (nor any code with a negative number).  I'd have to dig deeper 
to see if this is a bug in how we open the file, so can you tell me for certain 
that this file isn't corrupt somehow?  Can you open it using a tool that 
doesn't rely on netcdf-java?

Regards,
  Lansing Madry
  Unidata
  Boulder, Colorado

> Hi,
> 
> I'm trying to read in the Storm Tracking Information from level 3 radar
> data here:
> ftp://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/DS.58sti/SI.ksgf/sn.last
> (file attached)
> 
> I'm using the toolsUI-4.3.jar and I get this error:
> 
> jwolfe@olive:~/>  java -classpath toolsUI-4.3.jar ucar.nc2.FileWriter -in
> sn.last -out sn.nc
> Nov 05, 2013 8:06:07 AM ucar.nc2.iosp.nids.Nidsheader read
> SEVERE: error reading pcode= -252 sn.last
> Exception in thread "main" java.io.IOException: java.io.IOException: error
> reading pcode, unable to handle the product with code -252
> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:425)
> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:392)
> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:379)
> at ucar.nc2.FileWriter.main(FileWriter.java:771)
> Caused by: java.io.IOException: error reading pcode, unable to handle the
> product with code -252
> at ucar.nc2.iosp.nids.Nidsheader.read(Nidsheader.java:678)
> at ucar.nc2.iosp.nids.Nidsiosp.open(Nidsiosp.java:107)
> at ucar.nc2.NetcdfFile.<init>(NetcdfFile.java:1521)
> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:813)
> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:422)
> 
> I tried reading the file from the GUI too and came up with the same error.
> Am I reading this file correctly or is this a bug?
> 
> *Jonathan Wolfe*
> * |  Meteorologist Charleston Pilot Project   *
> *Charleston, WV *
> 
> 
> 
> *National Weather Service 304-746-0190*
> 
> 


Ticket Details
===================
Ticket ID: TYF-271558
Department: Support netCDF Java
Priority: Normal
Status: Open