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Re: 20040317: avn to gfs cdl files (fwd)
- Subject: Re: 20040317: avn to gfs cdl files (fwd)
- Date: Fri, 19 Mar 2004 14:29:25 -0700 (MST)
===============================================================================
Robb Kambic Unidata Program Center
Software Engineer III Univ. Corp for Atmospheric Research
address@hidden WWW: http://www.unidata.ucar.edu/
===============================================================================
---------- Forwarded message ----------
Date: Fri, 19 Mar 2004 16:03:26 -0500
From: Ruth Platner <address@hidden>
To: Robb Kambic <address@hidden>
Subject: Re: 20040317: avn to gfs cdl files
Thanks Robb,
I already had the File action set up to get the raw grib data, but I wouldn't
have thought
of using the argument to gribtocdl. The grib data won't start for a while
today, so I
won't get to try this until next week. Tuesday is the first day I can try it,
but I'll let
you have a working cdl file I hope.
Ruth
Robb Kambic wrote:
> On Fri, 19 Mar 2004, Ruth Platner wrote:
>
> > Hi Rob,
> >
> > Thanks for the cdl file.
> >
> > I'm not sure I know how to create 1.25 raw data from the ldm feed, and
> > the ldm is the source of my data.
> >
> > For the older decoders I had an entry like this in my pqact file:
> >
> > HRS ^H[UVHRP][I-P]... KWB. (..)(..).*(/mAVN|/mSSIAVN)
> > PIPE /usr/local/ldm/decoders/bin/gribtonc
> > -q "lin,dlat=1.25,dlon=1.25" decoders/etc/avn-1.25x1.25.cdl
> > data/GRIB/(\1:yyyy)(\1:mm)\1\2_avn-1.25x1.25.nc
>
> Ruth,
>
> Create raw file using FILE action in the pqact.conf with following entry:
>
> HRS ^H[UVHRP][I-P]... KWB. (..)(..).*(/mAVN|/mSSIAVN)
> FILE data/GRIB/(\1:yyyy)(\1:mm)\1\2_gfs_37-44.wmo
>
> Here's how to create the 1.25 cdl
>
> % gribtocdl -v -q "lin,dlat=1.25,dlon=1.25" < "raw file from above" >
> gfs-1.25x1.25_37-44.cdl
>
> You will still have to edit the cdl to make it 100% correct.
>
> Robb...
>
> >
> > I thought gribtonc was doing some interpolating because the -q
> > "lin,dlat=1.25,dlon=1.25" was an option to gribtonc. I think if i just
> > save everything that I get from HRS ^H[UVHRP][I-P]... KWB.
> > (..)(..).*(/mAVN|/mSSIAVN) into a file for a date, that it won't really
> > be 1.25 data. I'm not sure at all, but since I could get 2.5, 1.25 and 1
> > degree resolution from the same grib data, I thought it was gribtonc that
> > was doing the interpolating.
> >
> > I could try saving all the grib data as above into a file and see what
> > gribtocdl does with it, but how it would create a 1.25 data file I don't
> > know. I have used gribtocdl before for existing grib files, but I'm a
> > little confused about how this would work.
> >
> > Thanks some more,
> >
> > Ruth
> >
> >
> > Robb Kambic wrote:
> > On Wed, 17 Mar 2004, Unidata Support wrote:
> >
> > >
> > > ------- Forwarded Message
> > >
> > > >To: address@hidden
> > > >From: Ruth Platner <address@hidden>
> > > >Subject: avn to gfs cdl files
> > > >Organization: UCAR/Unidata
> > > >Keywords: 200403172118.i2HLI4rV029423
> > >
> > > Hi,
> > >
> > > The new decoders, decoders-3.0.2, came with new cdl files.
> > The file
> > > avn-x.cdl was replaced with gfs_37-44.cdl. I'm wondering if
> > there are
> > > similar ready to go replacements for avn-1.0x1.0.cdl and
> >
> > Hiya,
> >
> > I attached gfs-1.0x1.0_3.cdl for the 1 degree grid, it might
> > needs some
> > minor modifications to make it 100% correct. I don't have
> > any
> > 1.25 raw data to make that one. You can make the cdls
> > yourself with the
> > gribtocdl program. When making the 1 degree, I found some
> > bugs in the
> > gribtocdl program so I need to make a new release. It was
> > missing some
> > level info in the program. So release decoders-3.0.3 should
> > be able to
> > create the 1.25 one. Will let you know when I completed the
> > release.
> >
> > Robb...
> >
> > > avn-1.25x1.25.cdl.
> > >
> > > Thanks for your help,
> > >
> > > Ruth
> > >
> > > --
> > >
> >
> > ****************************************************************************
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> > > ------- End of Forwarded Message
> > >
> >
> >
> > ===============================================================================
> > Robb Kambic Unidata Program
> > Center
> > Software Engineer III Univ. Corp for
> > Atmospheric Research
> > address@hidden WWW:
> > http://www.unidata.ucar.edu/
> >
> > ===============================================================================
> >
> >
> >
> > ------------------------------------------------------------------------
> > Name: gfs-1.0x1.0_3.cdl
> > gfs-1.0x1.0_3.cdl Type: Plain Text (TEXT/PLAIN)
> > Encoding: BASE64
> > Description: gfs-1.0x1.0_3.cdl
> >
> >
> >
>
> ===============================================================================
> Robb Kambic Unidata Program Center
> Software Engineer III Univ. Corp for Atmospheric Research
> address@hidden WWW: http://www.unidata.ucar.edu/
> ===============================================================================