Re: How to set Isobaric levels

On Jan 17, 2008 4:16 PM, patton <thernand_at_inf.utfsm.cl> wrote:
> Rodrigo Fernández wrote:
> > Hi,
> > I have been working with a .grib file, and encountered some problems
> > when i wanted to set the isobaric levels like (to be more especific
> > 650mb, 500mb and 200mb). I dont understand quite well the
> > documentation that says " The actual level coordinate in this case is
> > just an integer index. However it specifies how to compute the
> > pressure levels using the CF-compliant attribute formula_terms". Can i
> > set the levels like its done in GraDs? ( set lev 650 ) or with a
> > certain resource like mpsetlev ?
> >
> > I have been guessing at random with every variable in the file ( i
> > have been lucky with some of them and founded some levels that
> > needed).
> >
> > I attached the output of ncl_filedump.
> >
> > Regards,
> >
> >
> > ------------------------------------------------------------------------
> >
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> > ncl-talk mailing list
> > ncl-talk_at_ucar.edu
> > http://mailman.ucar.edu/mailman/listinfo/ncl-talk
> >
> Hi,
>
> i have the same problem, please can somebody help us?
>
> Thanks!.
>
> --
> Tomás Hernández C.
>

Hi Tomas,
I founded how to set the levels reading the introduction.ppt.
You can set the isobaric levels like this:

Example:

  T = tf->TMP_GDS0_ISBL_10({650},:,:) ; 650mb
  T = tf->TMP_GDS0_ISBL_10({500},:,:) ; 500mb
  T = tf->TMP_GDS0_ISBL_10({200},:,:) ; 200mb

It was very easy!, i will put more attention to the things i read next time :D.

Cheers,

-- 
Rodrigo G. Fernández Gaete   < Linux User #444521>
Ingenieria Civil Informática
Universidad Técnica Federico Santa Maria

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Received on Thu Jan 17 2008 - 12:37:41 MST