Re: 20020122: gribtonc decoder trouble

• To: Doug Hunt <dhunt@xxxxxxxx>, Teresa Van Hove <vanhove@xxxxxxxx>
• Subject: Re: 20020122: gribtonc decoder trouble
• From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
• Date: Wed, 23 Jan 2002 16:22:53 -0700 (MST)

On Tue, 22 Jan 2002, Unidata Support wrote:

------- Forwarded Message

>To: support@xxxxxxxxxxxxxxxx
>cc: Teresa Van Hove <vanhove@xxxxxxxx>
>From: Doug Hunt <dhunt@xxxxxxxx>
>Subject: Troubles getting AVN forecast data via LDM
>Organization: UCAR
>Keywords: 200201151654.g0FGsVx09070

Hi:

We have been getting AVN analysis data via LDM for a while with this
pqact entry:

HDS     ^(H[HRT][I-P]A..) KWB.
([0-3][0-9])([0-2][0-9]).*(/mAVN|/mSSIAVN)
        PIPE    /usr/bin/gribtonc

-q "lin,dlat=1.25,dlon=1.25" /usr/etc/avn-1.25x1.25.cdl /pub/suomiday/level1a/ancMet/ancMet_(\2:yyyy).(\2:ddd).\3.00.0360_nc

Now we need forcast data, so we tried this modified pqact entry:

HDS     ^(H[HRT][I-P]C..) KWB.
([0-3][0-9])([0-2][0-9]).*(/mAVN|/mSSIAVN)
        PIPE    /usr/bin/gribtonc

-q "lin,dlat=1.25,dlon=1.25" /usr/etc/avn-1.25x1.25.cdl /pub/suomirt/level1a/ancMet/ancMet_(\2:yyyy).(\2:ddd).\3.00.0360_nc

Doug,

I not sure if the problem is the request is too strict or there is a
problem with gribtonc. First, I would suggest making the request more
liberal and see if the fields are populated. If that doesn't help then I
would have to check if the data is being processed correctly via gribtonc.

Here's a more liberal request:

HDS     ^(H[HRT][I-P][C-Z]..) KWB.

[C-Z] should give all the forecasts, some params are only on certain
forecasts, etc.


Here's the pqact entry from motherlode for the raw data:

#  Spectral grids - grids A,B,C,D Global grid  Forecasts (wind & waves,
temperature)
##
HRS     ^H[A-Z][ABCD][A-Z][0-9][0-9] KWB. ([0-3][0-9])([0-2][0-9])..
       FILE
       data/pub/raw/hrs/model/spectral/(\1:yyyy)(\1:mm)\1\2_WAVE.wmo


Robb...

(Note the C instead of the A in the first part of the regular expression
on the first line).  This seems to result in lots of empty netcdf
files--files with all headers and attributes but no data.  How does one
get AVN forecast data via LDM?

Thanks in advance for any hints,

  Doug Hunt
--
dhunt@xxxxxxxx
Software Engineer III, Sometimes Sysadmin
UCAR - COSMIC, Tel. (303) 497-2611


------- End of Forwarded Message

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