Re: IS IT THE AVN OR GFS OR MRF OR ....? (fwd)

• To: bit-bucket <bit-bucket@xxxxxxxxxxxxxxxx>
• Subject: Re: IS IT THE AVN OR GFS OR MRF OR ....? (fwd)
• From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
• Date: Tue, 27 May 2003 11:25:07 -0600 (MDT)

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

---------- Forwarded message ----------
Date: Tue, 8 Apr 2003 22:31:06 -0500
From: Declan Cannon <declan.cannon@xxxxxxxxxxxxxxxxx>
To: ldm-users@xxxxxxxxxxxxxxxx, Tom Grzelak <grzelak@xxxxxxxxxxxxxxxxxx>
Subject: Re: IS IT THE AVN OR GFS OR MRF OR ....?

Here is a chronology of sorts:

03/05/2002 : AVN runs four times a day out to 384 hours. Resolution is
T170L42 to 180h, thereafter T62L28.

04/23/2002 00Z: MRF is replaced by the 00Z AVN.

Sept-Oct 2002: Name changes: The AVN will be referred to as the Global
Forecast System model (GFS).

10/29/02 12Z: Resolution change
old: T170L42 to 180h, T62L28 to 384h
new: T254L64 to 84h, T170L42 to 180h, T126L28 to 384h

Also, see the following:
http://wwwt.emc.ncep.noaa.gov/gmb/STATS/tpb97/TPB02/html/v3.html

Hope this helps
Declan


----- Original Message -----
From: "Tom Grzelak" <grzelak@xxxxxxxxxxxxxxxxxx>
To: <ldm-users@xxxxxxxxxxxxxxxx>
Sent: Tuesday, April 08, 2003 7:31 PM
Subject: IS IT THE AVN OR GFS OR MRF OR ....?

I have a question that I hope to gain consensus on.  In speaking with a
friend from NCEP over winter break, he kept reminding me on how the AVN

was

now called the GFS.  Is it truly the same model?  Also, is the MRF now

also

considered the GFS.

We were going to update our weather server to reflect the current lingo
just like we recently did with the GOES8 to GOES12.  Since my programmer
just went through that whole ordeal I thought it would be good to have him
now make the AVN/MRF transition to the GFS.

So I decided to go to the NCEP site and I found current (today) references
to GFS products, the GFS MRF-like products, MRF products and AVN
products.  So what DOES NCEP want us to call this(these) model(s)?  Is
there any reason to continue to use the AVN and MRF terminology?

Thanks!
Tom





==============================================================
Tom Grzelak                          grzelak@xxxxxxxxxxxxxxxxxx
Senior Systems Administrator
  ----> Center for Environmental Prediction
  ----> Department of Environmental Sciences

Rutgers University
14 College Farm Road                    Voice: 732-932-4923
New Brunswick, NJ 08901-8551            Fax: 732-932-8644
                 http://www.envsci.rutgers.edu
==============================================================