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============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research rkambic@xxxxxxxxxxxxxxxx WWW: http://www.unidata.ucar.edu/ ============================================================================== ---------- Forwarded message ---------- Date: Fri, 19 Mar 2004 16:03:26 -0500 From: Ruth Platner <rlp@xxxxxxxxxxxxxxxxxxxx> To: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx> 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: support-decoders@xxxxxxxxxxxxxxxx
> > >From: Ruth Platner <rlp@xxxxxxxxxxxxxxxxxxxx>
> > >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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> > Unidata User Support
> >
> (303)497-8643
> > support@xxxxxxxxxxxxxxxx
> >
>
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>
>
==============================================================================
> Robb Kambic Unidata Program
> Center
> Software Engineer III Univ. Corp for
> Atmospheric Research
> rkambic@xxxxxxxxxxxxxxxx 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
rkambic@xxxxxxxxxxxxxxxx WWW: http://www.unidata.ucar.edu/
==============================================================================
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