Re: Question again.

On Tue, 3 Jun 2003, Yan Gu wrote:

> Robb,
>
> I have made a table and use it to convert. There is no problem to make the
> cdl file. However, it gives me such error messages when I try to make nc
> file:

Yan,

The problem is the udunits package doesn't recognize some of the units for
the parameters. I'll note the units to use below for the errors.

>
> ----------------------------------------------------------------------------
>
> udunits(3): syntax error:
> -
replace the "-" with ""  in the table

>  ^
> udunits(3): syntax error:
> (0 - 1)

replace "(0 - 1)" with "bit" in the table

same for the others. If you have problems with the other variables you can
comment out the udunits attribute line with a "//" in the cdl file.

Robb...


>      ^

> udunits(3): syntax error:
> (0 - 1)
>      ^
>
> udunits(3): syntax error:
> -
>  ^
> Segmentation fault
>
> -----------------------------------------------------------------------------
>
> I have attached the tab file the the cdl file. I also attached the log
> file which logged the convert infomation. Would you please help me on this
> error?
>
>
> Yan
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Yan Gu
>
> Sr. Computer Program Analyst
> Center For Ocean-Atmospheric Prediction Studies
> Florida State University
>
> Express Mail:   2035 E. Paul Dirac Drive
>                 R. M. Johnson Bldg. -Suite 233
>                 Tallahassee, FL32310
>
> Tel: (850)644-6935 (OFFICE) (850)574-9877 (HOME)
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
> On Mon, 2 Jun 2003, Robb Kambic wrote:
>
> > On Mon, 2 Jun 2003, Yan Gu wrote:
> >
> > > Robb,
> > >
> > > Thanks for your answer to me.
> > >
> > > For the gribtocdl, now I know that "3008" stands for 3008 parameters.
> > > However, I am confused that if there are 3008 parameters, then why in the
> > > result netCDF file, there are only about 47 parameters? Futher more, for
> >
> > Yan,
> >
> > No there are 47 parameters in the file, some of the parameters have have
> > different levels, times, etc.  Each product only contains one parameter
> > and level time information and there are multi levels for one parameter.
> >
> >
> > > the table files, now I know the syntax of them. My new question is how to
> > > contruct the table file. I mean, where I can get the infomation of grib ID
> > > ( I guess I can get this in gribdump -h ), netCDF name, long name, units
> > > and comments assume I only have grib files?
> > >
> >
> > I looked up you parameters, they come from a ecmwf parameter table. It
> > looks like these names are not the standard ones but are close. I'll attach 
> > the
> > table, it's in XML format.
> >
> >
> > Using your ctl file entries, ie
> >
> > no10Usfc  0 165,1,0  ** 10 metre u wind component m s**-1
> >
> > transforms into a table entry
> >
> > Grib;netCDF  ;long name                ;units   ;comments
> > 165 ;no10Usfc;10 metre u wind component;m s**-1 ;
> >
> > You need to do this for all 47 variables. Then use the table for both
> > programs gribtocdl and gribtonc. Then the names should be correct in the
> > NetCDF file.
> >
> > The ctl file and parm_table_ecmwf_128.xml helped me decide the numbers.
> >
> > Robb...
> >
> >
> > > For the gribtonc, I tried to attach the grib file i am using to
> > > convert. I am too sad it is too big about 300 MB. I think I had better not
> > > attach it. Well, I do attach the test.cdl file which from gribtocdl. I
> > > also attach the Y63211.ctl file which I got from the site as the same time
> > > as I downloaded the data.  Those parameters in that file are what we need
> > > but for some reason I can't match them in the cdl file that created by
> > > gribtonc. I guess the problem here is the name difference. But I do have
> > > no idea how to match them. Would you please give me some clue?
> > >
> > > Again, I do appreciate your help. It really help me a lot.
> > >
> > > Yan
> >
> > ===============================================================================
> > Robb Kambic                            Unidata Program Center
> > Software Engineer III                          Univ. Corp for Atmospheric 
> > Research
> > address@hidden                 WWW: http://www.unidata.ucar.edu/
> > ===============================================================================

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