[IDV #VVK-969556]: IDV Unkown vertical coordinate

> Dear Yuan,
> 
> Thanks fort he infos.
> I tried to change the "standard_name" and "formula" in IDW but I only could 
> change these in Proporties-Metadata which had no effect ?
> How / where can I change "standard_name" and "formula" in my .nc-file ???
> 
> Thanks a lot in advance
> 
> Stefan Peters

Hi Stefan,
      You can use ncml to modify the netCDF file, here is a link of ncml:

http://www.unidata.ucar.edu/software/netcdf/ncml/

If you have any question about the standard of netCDF file, please email 
address@hidden
 
Yuan
> 
> -----Ursprüngliche Nachricht-----
> Von: Unidata IDV Support [mailto:address@hidden]
> Gesendet: Donnerstag, 5. August 2010 22:53
> An: address@hidden
> Cc: address@hidden; address@hidden; address@hidden
> Betreff: [IDV #VVK-969556]: IDV Unkown vertical coordinate
> 
> > Dear Yuan,
> >
> > thanks for replying
> > I still got some difficults:
> >
> > - What are the right syntax for "standard_name" and "formula" ?
> > The same like in your example?
> > - how can I change them?
> > In IDV-Dashboard - Data Source - Metadata?
> >
> > Looking forward to your help support
> 
> Hi Stefan,
> For your dataset, the standard_name should be
> :standard_name = "atmosphere_hybrid_sigma_pressure_coordinate";
> :formula_terms = "a: hyam b: hybm p0: P0 ps: PS";
> I don't think you can define the formula at this moment. You can take a look 
> a example here, the IDV is able to do the 3D display:
> 
> http://www.unidata.ucar.edu/software/netcdf/examples/cami_0000-09-01_64x128_L26_c030918.nc
> >
> > Best greetings
> > Stefan Peters
> >
> > -----Ursprüngliche Nachricht-----
> > Von: Unidata IDV Support [mailto:address@hidden]
> > Gesendet: Dienstag, 3. August 2010 00:50
> > An: address@hidden
> > Cc: address@hidden; address@hidden; address@hidden
> > Betreff: [IDV #VVK-969556]: IDV Unkown vertical coordinate
> >
> > > Dear Yuan,
> > >
> > > I uploaded the sample file :
> > > http://motherlode.ucar.edu/repository/entry/show/RAMADDA/Unidata/Software/IDV/Support+Uploads?entryid=e850985a-8a2c-44e3-8a05-e547cfb963a1
> > > Entry ID: 118f9ace-dd34-476d-ad8c-e1dcbb069dac
> > > Entry Title: new ncIDV
> > >
> > > Best regards
> > >
> > > Stefan Peters
> >
> > Hi Stefan,
> > The dataset needs to follow the CF convention:
> > http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.4/cf-conventions.html#dimensionless-v-coord
> >
> > The standard_name and the formula in your file does not look right. The 
> > following is a example:
> >
> > double lev(lev=26);
> > :long_name = "hybrid level at midpoints (1000*(A+B))";
> > :units = "";
> > :positive = "down";
> > :_CoordinateAxisType = "GeoZ";
> > :_CoordinateZisPositive = "down;
> >
> > :standard_name = "atmosphere_hybrid_sigma_pressure_coordinate";
> > :formula_terms = "a: hyam b: hybm p0: P0 ps: PS";
> > :_CoordinateTransformType = "Vertical";
> > :_CoordinateAxes = "lev";
> >
> > Hope this can help.
> >
> > Yuan
> > >
> > > -----------------------------------------------------------------------------
> > > Technische Universität München
> > > Dipl.-Ing. Stefan Peters
> > > Fakultät für Bauingenieur- und Vermessungswesen
> > > Lehrstuhl für Kartographie, Raum 1771
> > > Arcisstraße 21
> > > 80333 München
> > > Tel: +49.89.289.23959
> > > Fax: +49.89.280.9573
> > > address@hidden
> > > www.carto-tum.de
> > > -----------------------------------------------------------------------------
> > >
> > >
> > >
> > > -----Ursprüngliche Nachricht-----
> > > Von: Unidata IDV Support [mailto:address@hidden]
> > > Gesendet: Freitag, 30. Juli 2010 22:02
> > > An: address@hidden
> > > Betreff: [IDV #VVK-969556]: IDV Unkown vertical coordinate
> > >
> > > > Full Name: Stefan Peters
> > > > Email Address: address@hidden
> > > > Organization: TUM LFK
> > > > Package Version: latest
> > > > Operating System: Windows 2007
> > > > Hardware:
> > > > Description of problem:
> > > >
> > > > Dear Sir or Madam,
> > > >
> > > > my name is Stefan Peters, I am a PHD-candidate at Technical University
> > > > of Munich Department of Cartography.
> > > >
> > > > In my research I try to visualize and investigate 4D  wheather-data
> > > > (netcdf format) with Unidata IDV.  Thereby I have the following problem
> > > > within trying to visualize a 3D-plot : "Unkown vertical coordinate with
> > > > Unit null, using linear scale to Altitude"
> > > >
> > > > How can I solve this problem?
> > > >
> > > > I know that the z coordinate is calculates by the middle of the both
> > > > borders (ilev, mlev):
> > > >
> > > > p(x,y,z,t) = hyai(z) + hybi(z) * exp(lsp(z,y,z,t))
> > > >
> > > > But I dont know how to handle it for IDV?
> > > >
> > > > Do I have to define a coordinate system for z coordinates ?
> > > >
> > > > I hope you can help me.
> > > >
> > > > Best regards
> > > > Stefan Peters
> > > >
> > > >
> > > >
> > > Stefan,
> > > Could you upload a sample file? so I can take a closer look.
> > >
> > > http://motherlode.ucar.edu/repository/alias/idvupload
> > >
> > > Thanks,
> > > Yuan
> > >
> > > Ticket Details
> > > ===================
> > > Ticket ID: VVK-969556
> > > Department: Support IDV
> > > Priority: Normal
> > > Status: Open
> > >
> > >
> > >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: VVK-969556
> > Department: Support IDV
> > Priority: Normal
> > Status: Closed
> >
> >
> >
> 
> 
> Ticket Details
> ===================
> Ticket ID: VVK-969556
> Department: Support IDV
> Priority: Normal
> Status: Closed
> 
> 
> 


Ticket Details
===================
Ticket ID: VVK-969556
Department: Support IDV
Priority: Normal
Status: Closed