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[Rana Samuels]

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On Thu, Nov 12, 2009 at 5:48 PM, Diego Morelli <diego.morelli at trs.it> wrote:

> Ok, thank you!!!
> It's clear now.
>
> Diego
>
> -----Messaggio originale-----
> Da: GRADSUSR at LIST.CINECA.IT [mailto:GRADSUSR at LIST.CINECA.IT] Per conto di
> Wesley Ebisuzaki
> Inviato: giovedì 12 novembre 2009 16.02
> A: GRADSUSR at LIST.CINECA.IT
> Oggetto: Re: Meaning of descriptor file (*.ctl) variable names
>
> Diego,
>
> Sometimes a variable may be available as a vertical profile. Sometimes a
> variable may only be available on
> one or two levels. When a variable is available as a vertical profile on
> pressure surfaces, the suffix "prs" is
> used. If the variable is not available on a vertical profile, the suffix
> is the level descriptor.
>
> Wesley Ebisuzaki
>
>
> Diego Morelli wrote:
> >
> > When I use grib2ctl (v0.9.12.5p45) it issues a ctl file with some
> > variables having the suffix “mb”. These variables are relative to an
> > isobaric level type (value 100 in the PDS grib section, octet number
> > 10), with a value expressed in hPa.
> >
> > I see that the variables with suffix prs are relative also to an
> > isobaric level type.
> >
> > My questions is to know what is the difference between the variable
> > with suffix mb and those with suffix prs.
> >
> > Here there is an example of a descriptor file:
> >
> >
>
> ----------------------------------------------------------------------------
> ----------------------------------------------
> >
> >
> > dset ^LFPW00190127.20090718144212_P4320PT76BE_BPMG12.86093.b
> >
> > index ^LFPW00190127.20090718144212_P4320PT76BE_BPMG12.86093.b.idx
> >
> > undef 9.999E+20
> >
> > title LFPW00190127.20090718144212_P4320PT76BE_BPMG12.86093.b
> >
> > * produced by grib2ctl v0.9.12.5p45
> >
> > dtype grib 255
> >
> > options yrev
> >
> > ydef 66 linear 10.000000 1
> >
> > xdef 126 linear -60.000000 1.000000
> >
> > tdef 1 linear 12Z18jul2009 1mo
> >
> > * z has 6 levels, for prs
> >
> > zdef 6 levels
> >
> > 925 850 700 500 400 300
> >
> > vars 2
> >
> > * GPprs * 6 6,*100*,0 ** (profile) Geopotential [m^2/s^2]
> >
> > * VGRD925mb * 0 34,*100*,925 ** 925 mb v wind [m/s]
> >
> > ENDVARS
> >
> >
>
> ----------------------------------------------------------------------------
> ----------------------------------------------
> >
> >
> > Regards,
> >
> > Diego
> >
>
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