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[IDV #YCQ-835230]: Radar file

Hi Ed,

No problem - let me know if you have any other questions. Also note
that the previous 14 days or so of RADAR data (level 2 and 3) can be
accessed directly from the IDV Data Chooser :-)

Cheers,

Sean

> Hi Sean,
> 
> Ah, I did not know that WES converts the data to a different format
> (DRT).  I will check to see if it can go back the other way.  IF not,
> like you suggest, we can use radar data from NCDC (as always).
> 
> Thanks for your help!!
> 
> Ed
> 
> On Sun, Aug 12, 2012 at 10:09 AM, Unidata IDV Support
> <address@hidden> wrote:
> > 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
> >
> 
> 


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