Re: 20050418: NTSB grib problem

• To: dmurray@xxxxxxxxxxxxxxxxx
• Subject: Re: 20050418: NTSB grib problem
• From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
• Date: Mon, 18 Apr 2005 16:33:34 -0600 (MDT)

it's a table problem, center 7 subcenter 0 version 0   no one else is
using those numbers.  it's basically 7 0 2 table because parameters are
under 128.  i updated the table list for the grib files and ci.

on a side note,the routine for a user to read in his own table is:


GribPDSParamTable.setParameterUserLookup(String UserGribTabPath)

the UserGribTabPath can be path, url, etc.  the routine expects a file
called: userlookup.lst with format:

158:     0:               2:    fnmoc_2.tab

and the table ie. fnmoc_2.tab in the same location.  tables are in ncep
format:

-1:7:-1:2
0:var0:undefined
1:PRES:Pressure [Pa]
2:PRMSL:Pressure reduced to MSL [Pa]
3:PTEND:Pressure tendency [Pa/s]
4:PVORT:Pot. vorticity [km^2/kg/s]
5:ICAHT:ICAO Standard Atmosphere Reference Height [M]
6:GP:Geopotential [m^2/s^2]
...

robb...



On Mon, 18 Apr 2005, Unidata Support wrote:

>
> Here's the error that we get in the IDV when we try to load in
> Greg Salatto's grib file.
>
> Don
> ------- Forwarded Message
>
> >To: support-idv@xxxxxxxxxxxxxxxx
> >From: "Don Murray" <dmurray@xxxxxxxx>
> >Subject: IDV - Grib error
> >Organization: UCAR/Unidata
> >Keywords: 200504182152.j3ILqj5Q024309
>
> Institution: Unidata
> Package Version: 1.2b2
> Operating System: os.name:Windows XP; os.arch:x86; os.version:5.1;
> Hardware Information: java.vendor:Sun Microsystems Inc.; 
> java.version:1.4.2_01; java.home:c:\\Program Files\\IDV_1.1b2_ogl\\jre;
> Inquiry: An error has occurred:
> There was an error loading the data:
> java.lang.NullPointerException
>
> ******************
> Stack trace:
> java.lang.NullPointerException
>       at ucar.grib.grib1.Grib1Lookup.<init>(Grib1Lookup.java:36)
>       at 
> ucar.nc2.iosp.grib.Grib1ServiceProvider.open(Grib1ServiceProvider.java:71)
>       at ucar.nc2.NetcdfFile.<init>(NetcdfFile.java:644)
>       at ucar.nc2.NetcdfFile.open(NetcdfFile.java:262)
>       at ucar.nc2.NetcdfFile.open(NetcdfFile.java:211)
>       at ucar.nc2.dataset.NetcdfDataset.openFile(NetcdfDataset.java:232)
>       at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:125)
>       at ucar.nc2.dataset.grid.GridDataset.open(GridDataset.java:65)
>       at ucar.nc2.dataset.grid.GridDataset.factory(GridDataset.java:74)
>       at 
> ucar.unidata.data.grid.GeoGridDataSource.doMakeDataSet(GeoGridDataSource.java:268)
>       at 
> ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSource.java:285)
>       at 
> ucar.unidata.data.grid.GeoGridDataSource.doMakeDataChoices(GeoGridDataSource.java:299)
>       at 
> ucar.unidata.data.DataSourceImpl.getDataChoices(DataSourceImpl.java:959)
>       at ucar.unidata.data.DataManager.createDataSource(DataManager.java:870)
>       at 
> ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1360)
>       at 
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1298)
>       at 
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1279)
>       at 
> ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:395)
>       at 
> ucar.unidata.idv.chooser.FileChooser.selectFileInner(FileChooser.java:393)
>       at ucar.unidata.idv.chooser.FileChooser.selectFile(FileChooser.java:271)
>       at ucar.unidata.idv.chooser.FileChooser.doLoad(FileChooser.java:288)
>       at ucar.unidata.ui.ChooserPanel.actionPerformed(ChooserPanel.java:130)
>       at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
>       at 
> javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown Source)
>       at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
>       at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
>       at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown 
> Source)
>       at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
>       at java.awt.Component.processMouseEvent(Unknown Source)
>       at java.awt.Component.processEvent(Unknown Source)
>       at java.awt.Container.processEvent(Unknown Source)
>       at java.awt.Component.dispatchEventImpl(Unknown Source)
>       at java.awt.Container.dispatchEventImpl(Unknown Source)
>       at java.awt.Component.dispatchEvent(Unknown Source)
>       at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
>       at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
>       at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
>       at java.awt.Container.dispatchEventImpl(Unknown Source)
>       at java.awt.Window.dispatchEventImpl(Unknown Source)
>       at java.awt.Component.dispatchEvent(Unknown Source)
>       at java.awt.EventQueue.dispatchEvent(Unknown Source)
>       at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
>       at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
>       at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
>       at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
>       at java.awt.EventDispatchThread.run(Unknown Source)
>
>
>
> --
> NOTE: All email exchanges with Unidata User Support are recorded in the
> Unidata inquiry tracking system and then made publicly available
> through the web.  If you do not want to have your interactions made
> available in this way, you must let us know in each email you send to us.
>
> ------- End of Forwarded Message
>

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