20070727: GRIB 1 ot GRIB 2

[Linda Miller]

NOUS41 KWBC 271434
PNSWSH

TECHNICAL IMPLEMENTATION NOTICE 07-49
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1034 AM EDT FRI JUL 27 2007

TO:       FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER 
          WIRE SERVICE /NWWS/ SUBSCRIBERS...EMERGENCY MANAGERS 
          WEATHER INFORMATION NETWORK /EMWIN/ SUBSCRIBERS...OTHER 
          NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS AND PARTNERS 
          ...NWS EMPLOYEES...NOAAPORT USERS

FROM:     PAUL HIRSCHBERG
          CHIEF...SCIENCE PLANS BRANCH
          OFFICE OF SCIENCE AND TECHNOLOGY /OST/

SUBJECT:  REMOVAL OF NCEP DERIVED MODEL GRIB1 PRODUCTS FROM NCEP
          AND NWSTG PUBLIC FTP/HTTP SERVERS AND REPLACEMENT OF 
          NCEP DERIVED MODEL GRIB1 PRODUCTS WITH GRIB2 PRODUCTS 
          ON THE NWSTG AND NCEP PUBLIC FTP/HTTP SERVERS:    
          EFFECTIVE JANUARY 29 2008

EFFECTIVE JANUARY 29 2008 BEGINNING WITH THE 1200 COORDINATED 
UNIVERSAL TIME /UTC/ RUN...ALL NCEP MODEL GRIB1 PRODUCTS ON THE 
NWSTG AND NCEP PUBLIC FTP SERVERS WILL BE REMOVED.  THEY WILL BE 
REPLACED WITH GRIB2 PRODUCTS.  THE SIGNIFICANT BENEFIT OF THIS 
CHANGE IS THE SAVINGS OF BANDWIDTH AND DISK SPACE USED FOR BOTH 
THE GOVERNMENT AND PUBLIC/PRIVATE USERS.

NCEP MODEL DATA AT THE FOLLOWING WEBSITES WILL BE IMPACTED:

NWSTG FTP SERVER: USE /LOWER CASE LETTERS EXCEPT SL...ST/

     FTP://TGFTP.NWS.NOAA.GOV/SL.US008001/ST.OPNL

NCEP FTP SERVER: /USE LOWER CASE LETTERS/

     FTP://FTPPRD.NCEP.NOAA.GOV/PUB/DATA/NCCF

     FTP://FTP.NCEP.NOAA.GOV/PUB/DATA/NCCF

DUPLICATE GRIB2 AND GRIB1 PRODUCTS ARE CURRENTLY AVAILABLE ON 
BOTH SERVERS AND WILL CONTINUE TO BE AVAILABLE UNTIL THE 
EFFECTIVE CHANGE DATE.

NEW PRODUCTS WILL ONLY BE AVAILABLE IN GRIB2 FORMAT. 

NCEP HAS MADE AVAILABLE SEVERAL WEBSITES WHICH CAN AID USERS WITH 
THE TRANSITION TO THE NEW GRIB2 FORMAT. 

INFORMATION REGARDING PRODUCT EQUIVALENTS FOR GRIB1/GRIB2 FILES 
ON THE NWSTG AND NCEP SERVERS IS AVAILABLE ONLINE AT /USE LOWER 
CASE LETTERS EXCEPT GRIB1 AND GRIB2/:

     HTTP://WWW.NCO.NCEP.NOAA.GOV/PMB/DOCS/GRIB1_TO_GRIB2.SHTML 

INFORMATION REGARDING A UTILITY WHICH CONVERTS GRIB2 PRODUCTS 
BACK INTO GRIB1 FORMAT CAN BE FOUND ONLINE AT /USE LOWER CASE 
LETTERS EXCEPT GRIB/:

     HTTP://WWW.NCO.NCEP.NOAA.GOV/PMB/CODES/GRIB2/ 

FOR ASSISTANCE USING THE SOFTWARE...PLEASE SEND A TICKET TO THE 
PMB DATAFLOW HELP DESK AT THE FOLLOWING EMAIL ADDRESS /USE 
LOWERCASE LETTERS/: 

     NCEP.PMB.DATAFLOW at NOAA.GOV

NCEP PLANS TO SUPPORT THE GRIB1 TO GRIB2 CONVERSION SOFTWARE FOR 
A PERIOD OF 90 DAYS AFTER THE EFFECTIVE DATE.  NCEP WILL NO 
LONGER SUPPORT THIS SOFTWARE AFTER MAY 1 2008.

IF YOU HAVE ANY QUESTIONS ABOUT THESE CHANGES...PLEASE CONTACT:

JOE CARR 
NCEP CENTRAL OPERATIONS
301 763 8000 X7709
JOE.CARR at NOAA.GOV
OR
JOHN WARD
NCEP CENTRAL OPERATIONS
301 763 8000 X7185 
JOHN.WARD at NOAA.GOV

THIS AND OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE 
ONLINE AT /USE LOWER CASE LETTERS/: 

     HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM

$$
NNNN

-- 
Linda Miller - lmiller at unidata.ucar.edu
Community Services, Unidata
University Corporation for Atmospheric Research
P.O. Box 3000
Boulder, CO 80307-3000
303-497-8646 fax: 303-497-8690 


==============================================================================
To unsubscribe nws-changes, visit:
http://www.unidata.ucar.edu/mailing-list-delete-form.html
==============================================================================