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[THREDDS #DRR-610037]: FillValue....



attached are the example ncml we had during the workshop.

ethan is correct that grids cant deal with missing coordinates values.

> Hi Michael,
> 
> I don't believe this data can be viewed in the grid viewer. The problem is 
> that netCDF-java/CDM expects gridded data to have coordinate variables 
> without any missing values (so it can map between i,j and lat/lon). [John, 
> please correct me if I'm wrong on this.] An "image" feature type would be 
> more appropriate. Unfortunately, netCDF-java/CDM doesn't yet have an image 
> type.
> 
> Outside of that, a few comments regarding some of the variable attributes:
> 
> 1) The valid_* and _FillValue attribute values are all strings. The
> strings are typed ("0b", "-90.0f", etc) but somehow ended up as
> strings instead of the intended type.
> 
> 2) The variable "lon" has valid_max,min of 90,-90 instead of 180,-180.
> 
> I didn't find the examples we looked at during the workshop. I'll look a bit 
> more and ask John about them as well.
> 
> Ethan
> 
> > Dear Thredds-Support,
> >
> > we had been taken place in the Unidata THREDDs workshop this year in 
> > Boulder and during this
> > some of our data was analysed, which we wanted to serve using THREDDs.
> >
> > We had been advised to add the "FillValue" into our latitude/ longitude 
> > definitions such
> > as the data was supposed to be properly displayed within the Grid View.
> >
> > We have changed this definition now:
> >
> > http://gsics.eumetsat.int/thredds/catalog/mfg15NetCDF/catalog.html
> >
> > but the data itself still does not get properly displayed within ToolsUI, 
> > Grid View.
> >
> > Would you be able to give us advise what is still wrong with the data ?
> >
> > We unfortuneatly did not take back the modified NetCDF files from the 
> > workshop, which
> > would have given us the possibility to cross check our updates.
> >
> > best regards,
> >
> > Michael Schick
> >
> 


Ticket Details
===================
Ticket ID: DRR-610037
Department: Support THREDDS
Priority: Normal
Status: Closed

Attachment: W_xx-EUMETSAT-Darmstadt,VIS+IR_IMAGERY,MET7+MTP15_C_EUMS_20090726180000.ncml
Description: Binary data

Attachment: W_xx-EUMETSAT-Darmstadt,VIS+IR_IMAGERY,MSG2+MSG15_C_EUMS_20090730213009.ncml
Description: Binary data


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