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20051102: IDV - Eumetsat CLM GRIB2 file

>From: "Valentijn Venus" <address@hidden>
>Organization: ITC
>Keywords: 200511021016.jA2AGm7s027884 IDV projection

Hi Valentijn-

>i have the same request as Markus.  As we receive CLM products through EUMETCA
> ST too, it would be great if IDV can be extended to incl. the 90 Space View P
> erspective or Orthographic projection?

I added an Orthographic projection to the IDV's projection packages
yesterday.  It will take a little bit more work to do the GRIB
decoding, but we might get it in for the 1.3beta1 release.  Can 
you send a sample file or two for us to test with?

Thanks.

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>Re: 20050519: IDV - Eumetsat CLM GRIB2 file
>
>    * To: Markus Gregor Kempf <m.kempf@xxxxxx>
>    * Subject: Re: 20050519: IDV - Eumetsat CLM GRIB2 file
>    * From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
>    * Date: Thu, 7 Jul 2005 13:39:07 -0600 (MDT)
>    * Cc: support-thredds <support-thredds@xxxxxxxxxxxxxxxx>
>    * In-reply-to: <address@hidden>
>    * Organization: UCAR/Unidata
>    * References: <address@hidden>
>
>Markus,
>
>sorry about the long response time but we have been swamped with getting
>all the data on Unidata's IDD system decoded properly. we looked at your
>sample file and can actually decode it. the problem is we need to code the
>projection 90 Space View Perspective or Orthographic and that is not an
>easy task. also we are not familar with this projection. at this point we
>don't have the time to code it because of the above tasks and also
>Unidata's coming workshops in 2 weeks. i am not saying that
>we will not code it, but when we will have the time to code it i cannot
>say.  that about the best i can say, i know it's not positive.
>
>thanks,
>robb...
>
>
>--------------------------------------------------------------------
>                        Header : GRIB
>                    Discipline : 3 Space products
>                  GRIB Edition : 2
>                   GRIB length : 3444913
>            Originating Center : 254 EUMETSAT Operation Centre
>        Originating Sub-Center : 0
>Significance of Reference Time : 3 Observation time
>                Reference Time : 2005:4:18T12:0:0
>                Product Status : 1 Operational test products
>                  Product Type : 6 Processed satellite observations
>         Number of data points : 13778944
>                     Grid Name : 90 Space View Perspective or Orthographic
>                     Grid Shape: 3 Earth oblate spheroid with axes
>specified by produ
>cer
>        Oblate earth major axis: 6378.14
>        Oblate earth minor axis: 6356.7554
>Number of points along parallel: 3712
>Number of points along meridian: 3712
>Latitude of sub-satellite point: 0.0
>  Longitude of sub-satellite pt: 0.0
>  Resolution & Component flags : 0
>         i direction increment : 3566.0
>         j direction increment : 3561.0
> X-coordinate of sub-satellite : 1856.0001
> Y-coordinate of sub-satellite : 1856.0001
>                 Scanning mode : 192
>                   Basic angle : 0
>        Altitude of the camera : 7.4533146E8
>        X-coordinate of origin : 0.0
>        Y-coordinate of origin : 0.0
>            Product Definition : 30 Satellite product
>            Parameter Category : 0 Image_format_products
>                Parameter Name : 7 Cloud_mask
>               Parameter Units :
>       Generating Process Type : 8
>                  ForecastTime : 0
>            First Surface Type : 0 Reserved
>
>
>
>
>
>On Tue, 24 May 2005, Markus Gregor Kempf wrote:
>
>> Robb,
>>
>> its the projection used by Eumetsat (www.eumetsat.int) for its
>> Meteosat-8 pictures. It's defined in documents EUM/MSG/ICD/105 and
>> EUM/MSG/SPE/022 (available at their website under Publications/Technical
>> Documentation). I don't have access to Eumetsat codes, but there is an
>> open-source library at meteosatlib.sourceforge.net implementing an image
>> reader and reprojection tool for the images.
>>
>> Best regards,
>>
>> Markus
>>
>> Robb Kambic wrote:
>> > Markus,
>> >
>> > could you tell us about this grid file?  projection 90 is a space view
>> > grid and we aren't quite sure how to handle the projection.  manual states
>> > that this is an orthographic view, is that the same as a orthographic
>> > projection from  the Snyder 1987 reference manual?  also do you have code
>> > to create the projection?
>> >
>> > thanks,
>> > robb...
>> >
>> >
>> >
>> > On Thu, 19 May 2005, Unidata Support wrote:
>> >
>> >
>> >>>To: support-idv@xxxxxxxxxxxxxxxx
>> >>>From: "Markus Kempf" <gmke@xxxxxx>
>> >>>Subject: IDV - Eumetsat CLM GRIB2 file
>> >>>Organization: ?
>> >>>Keywords: 200505191448.j4JEm99A004188
>> >>
>> >>Institution: private educational use
>> >>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:1.5.
> 0_02; java.home:C:\\Programme\\Java\\jre1.5.0_02;
>> >>Inquiry: I would like to load a GRIB2 file by Eumetsat with IDV. The follo
> wing error occurs:
>> >>
>> >>An error has occurred:
>> >>There was an error loading the data:
>> >>unknown projection = 90
>> >>
>> >>Markus Kempf
>> >>
>> >>******************
>> >>Stack trace:
>> >>java.lang.UnsupportedOperationException: unknown projection = 90
>> >>   at ucar.nc2.iosp.grib.GribHorizCoordSys.computeProjection(GribHorizCoor
> dSys.java:195)
>> >>   at ucar.nc2.iosp.grib.GribHorizCoordSys.addToNetcdfFile(GribHorizCoordS
> ys.java:102)
>> >>   at ucar.nc2.iosp.grib.Index2NC.open(Index2NC.java:157)
>> >>   at ucar.nc2.iosp.grib.Grib2ServiceProvider.open(Grib2ServiceProvider.ja
> va:75)
>> >>   at ucar.nc2.NetcdfFile.<init>(NetcdfFile.java:645)
>> >>   at ucar.nc2.NetcdfFile.open(NetcdfFile.java:263)
>> >>   at ucar.nc2.NetcdfFile.open(NetcdfFile.java:212)
>> >>   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(GeoGridDataSo
> urce.java:266)
>> >>   at ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSourc
> e.java:283)
>> >>   at ucar.unidata.data.grid.GeoGridDataSource.doMakeDataChoices(GeoGridDa
> taSource.java:297)
>> >>   at ucar.unidata.data.DataSourceImpl.getDataChoices(DataSourceImpl.java:
> 959)
>> >>   at ucar.unidata.data.DataManager.createDataSource(DataManager.java:850)
>> >>   at ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDat
> aViewer.java:1280)
>> >>   at ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataV
> iewer.java:1218)
>> >>   at ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataV
> iewer.java:1199)
>> >>   at ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:3
> 34)
>> >>   at ucar.unidata.idv.chooser.FileChooser.selectFileInner(FileChooser.jav
> a:382)
>> >>   at ucar.unidata.idv.chooser.FileChooser.selectFile(FileChooser.java:262
> )
>> >>   at ucar.unidata.idv.chooser.FileChooser.doLoad(FileChooser.java:278)
>> >>   at ucar.unidata.ui.ChooserPanel.actionPerformed(ChooserPanel.java:130)
>> >>   at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
>> >>   at javax.swing.AbstractButton$Handler.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 Sou
> rce)
>> >>   at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
>> >>   at java.awt.Component.processMouseEvent(Unknown Source)
>> >>   at javax.swing.JComponent.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.
>> >>
>> >
>> >
>> > ==========================================================================
> =====
>> > Robb Kambic                                   Unidata Program Center
>> > Software Engineer III                         Univ. Corp for Atmospheric R
> esearch
>> > rkambic@xxxxxxxxxxxxxxxx              WWW: http://www.unidata.ucar.edu/
>> > ==========================================================================
> =====
>> >
>> >
>>
>
>==============================================================================
> =
>Robb Kambic                               Unidata Program Center
>Software Engineer III                     Univ. Corp for Atmospheric Research
>rkambic@xxxxxxxxxxxxxxxx                  WWW: http://www.unidata.ucar.edu/
>==============================================================================
> =
>
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Don Murray
NOTE: All email exchanges with Unidata User Support are recorded in the
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