Re: 20040205:metar decode

• To: jimmyc@xxxxxxxxxxx
• Subject: Re: 20040205:metar decode
• From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
• Date: Thu, 5 Feb 2004 12:40:32 -0700 (MST)

On Thu, 5 Feb 2004, Unidata Support wrote:

------- Forwarded Message

>To: support-gempak@xxxxxxxxxxxxxxxx
>From: jimmyc@xxxxxxxxxxx
>Subject: metar decode
>Organization: UCAR/Unidata
>Keywords: 200402050558.i155wgp1020034

Hi-
Thanks for the help with radar processing and plotting (works great!)
Can dcmetr decode metar with the remarks? In particular I am looking for
the PRESFR, PRESRR, and PKWIND comments.
I have tried using some perl scripts to run over the raw data, however the
.sao files I have sometimes lack the equal sign that indicate the metar
has ended.
Thanks for the help!

James,

There's a Unidata decoders package that has a metar2nc perl script to
extract the information that you need. You might have to hack out the
netcdf code part, the purpose is to convert metars into a netCDF file.
At this point, I'm modifying the script and fixed the bug that you noted
but the code has not be releases yet. So you could change the code to
reflect the fix.

Change lines that splits bulletins into reports to:


       # Separate bulletins into reports
       if( /=\n/ ) {
               s#=\s+\n#=\n#g ;
               @reports = split( /=\n/ ) ;
       } else {
               s#\n# #g ;
               next if( /\d{4,6}Z.*\d{4,6}Z/ ) ;
               $reports[ 0 ] = $_ ;
       }

The url to the decoders page is:

http://my.unidata.ucar.edu/content/software/decoders/index.html

Robb...

--
James Correia Jr.
Ph.D. Candidate in Agricultural Meteorology
Dept. of Agronomy, Iowa State University
*********************************************
Email: jimmyc@xxxxxxxxxxx
Phone: 515-294-5587
Web: http://www.mesoscale.iastate.edu/jimmyc/
*********************************************
"Imagination is more important than knowledge."
-Einstein

"There is a difference between knowing the path and walking the path"
-"Morpheus"

NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publically available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.
--

------- 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/
==============================================================================