[nws-changes] [Fwd: [NCEP.List.ModelEvalInfo] Re: Proposed changes to the GEFS]

NOTE: The nws-changes mailing list is no longer active. The list archives are made available for historical reasons.



-------- Original Message --------
Correction to item number 3. A changes is being made to eliminate the need for a cold start to avoid stratospheric contamination. 

John

John Ward wrote:

NCEP Model Evaluation Subscribers,


    The Environmental Modeling Center (EMC) has proposed an upgrade to
the Global Ensemble Forecast System (GEFS).  The proposed upgrade includes:

The changes include:

    1. Restructure Parm cards to improve code maintenance
    2. Correct tokenizer code to avoid timing issues
3. Perform cold-start every 14 days to avoid contamination in the stratosphere 


Near Real-Time Parallel Data

/pub/data/nccf/com/gens/para/gefs.yyyymmdd/CC/DIR

where CC is cycle (00,06,12,18)
DIR is ndgd_gb2, pgrb2a, pgrb2alr, pgrb2b, pgrb2blr, wafs
There are no major scientific changes in this package. We will make the model output available for 30 days starting Tuesday, 22 July so that end-users of the ensemble data can verify that no unforeseen changes have been introduced. 

Any comments on this proposed change will be appreciate. Any feedback
you wish to provide during the evaluation period should be emailed to
NCEP.List.ModelEvalFeedback@xxxxxxxx, prior to 20 August 2008.

Thanks

John
  • 2008 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the nws-changes archives: