[IDV #YCQ-835230]: Radar file

Hi Ed,

Thanks for the info! It looks like WES converts the data to the DRT (Displaced 
Real
Time) format, which seems to be specific to WES. I tried to use ncdump on the
file and it says it's not netCDF. I tried to open the file in tools-UI, which 
uses the
common data model (it can read in several data types), and it could not 
understand
the format. I know WES has the ability to convert case study data in their 
native
format into the DRT format - is it able to go the other way as well (DRT -> 
navtive)?
If so, then we should be able to read the data in their native format.

Cheers,

Sean

PS. The IDV can read the data obtained from NCDC, so if all else fails,
you could go that route.

> Hi Sean,
> 
> No problem.  I will give you some background info. FYI: I work in the
> NWS Milwaukee Weather Forecast Office.  I got this radar file from our
> Weather Event Simulator (WES) archive.  This file was made when we
> were archiving our data for this date from our AWIPS workstation.  I
> believe this file contains a radar data from 0.5 degree elevation
> angle at 0.25 km resolution.
> 
> Maybe because the data stems from our AWIPS workstation and, thus, it
> is natively displayed in our Display 2-Dimensional (D2D) software that
> it may not be compatible with IDV?  I thought that it would be given
> its a radar file (I believe).  I thought it would be similar to say
> the NCDC Level 2 archive radar files.
> 
> Thanks,
> 
> Ed
> 
> On Sat, Aug 11, 2012 at 5:41 PM, Unidata IDV Support
> <address@hidden> wrote:
> > Greetings Ed,
> >
> > I checked to see if the file you sent was netCDF, and it isn't. That said, 
> > I am not
> > sure what kind of file it is. Could you tell me a little bit more about the 
> > file, like
> > where you got it and what kind of RADAR data you expect it to contain? No
> > worries, we'll solve this mystery.
> >
> > Cheers,
> >
> > Sean
> >
> >> Full Name: Ed Townsend
> >> Email Address: address@hidden
> >> Organization: National Weather Service
> >> Package Version: 3.0u2 build date:2012-02-10 17:21 UTC
> >> Operating System: Windows 7
> >> Hardware: Java: home: C:\Program Files\IDV_3.0u2\jre version: 1.6.0_20 
> >> j3d:1.5.2 fcs (build4)
> >> Description of problem: I am trying to open a radar file but I cannot find 
> >> the right source when it comes to adding it as a source.  I have attached 
> >> the file.
> >>
> >> I get the following error when  I load it as a netcdf, which I believe I 
> >> thought it was.
> >> There was an error loading the data:
> >> java.lang.NullPointerException
> >>
> >> Thank you,
> >>
> >> Ed
> >>
> >> ******************
> >> Stack trace:
> >> java.lang.NullPointerException
> >> at ucar.unidata.io.bzip2.CBZip2InputStream.bsR(CBZip2InputStream.java:349)
> >> at 
> >> ucar.unidata.io.bzip2.CBZip2InputStream.bsGetUChar(CBZip2InputStream.java:367)
> >> at 
> >> ucar.unidata.io.bzip2.CBZip2InputStream.initBlock(CBZip2InputStream.java:254)
> >> at 
> >> ucar.unidata.io.bzip2.CBZip2InputStream.setStream(CBZip2InputStream.java:195)
> >> at ucar.nc2.iosp.nids.Nidsheader.uncompressed(Nidsheader.java:2324)
> >> at ucar.nc2.iosp.nids.Nidsheader.read(Nidsheader.java:435)
> >> at ucar.nc2.iosp.nids.Nidsiosp.open(Nidsiosp.java:108)
> >> at ucar.nc2.NetcdfFile.<init>(NetcdfFile.java:1439)
> >> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:846)
> >> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:479)
> >> at ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:696)
> >> at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:424)
> >> at ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:520)
> >> at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:101)
> >> at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:87)
> >> at 
> >> ucar.unidata.data.grid.GeoGridDataSource.doMakeDataSet(GeoGridDataSource.java:1094)
> >> at 
> >> ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSource.java:1116)
> >> at 
> >> ucar.unidata.data.grid.GeoGridDataSource.initAfterCreation(GeoGridDataSource.java:478)
> >> at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1577)
> >> 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:1062)
> >> at ucar.unidata.util.Misc$3.run(Misc.java:1090)
> >>
> >>
> >>
> >
> > Ticket Details
> > ===================
> > Ticket ID: YCQ-835230
> > Department: Support IDV
> > Priority: Normal
> > Status: Open
> >
> 
> 


Ticket Details
===================
Ticket ID: YCQ-835230
Department: Support IDV
Priority: Normal
Status: Open