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TECHNICAL IMPLEMENTATION NOTICE 07-88...AMENDED
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
205 PM EST TUE DEC 18 2007

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

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

SUBJECT:  AMENDED: UPGRADE TO CLIMATE FORECAST SYSTEM: EFFECTIVE 
          JANUARY 22 2008

REFER TO: TECHNICAL IMPLEMENTATION NOTICE /TIN/ 07-88 
          TRANSMITTED ON AUG 2 2007 

THIS TIN HAS BEEN AMENDED TO REFLECT A DELAY IN THE 
IMPLEMENTATION OF THE CFS. THIS IMPLEMENTATION HAS BEEN 
RESCHEDULED FOR TUESDAY JANUARY 22 2008.

EFFECTIVE TUESDAY JANUARY 22 2008...AT 1200 COORDINATED UNIVERSAL 
TIME /UTC/...THE NATIONAL CENTERS FOR ENVIRONMENTAL PREDICTION 
/NCEP/ WILL UPGRADE THE CFS.

MODELING SYSTEM CHANGES:

- UPGRADE THE LAG TIME OF THE CFS FORECAST MODEL FROM THE
  CURRENT 8-DAY LAG TO A 1-DAY LAG.
- ADD 2 MEMBERS TO THE CURRENT 2 MEMBERS FOR A TOTAL OF  
  4 MEMBERS. THE 2 NEW MEMBERS WILL BE RUN AT THE SAME RESOLUTION 
  AND SAME FORECAST LENGTH.
- INCREASE THE DEPTH OF THE GLOBAL OCEAN DATA ASSIMILATION SYSTEM
  /GODAS/ FROM THE CURRENT 750 METERS TO 2175 METERS. 

PARALLEL DATA SETS ARE AVAILABLE ON THE NCEP FTP SERVER AT THE 
LINK BELOW. NCEP ENCOURAGES ALL USERS TO EVALUATE THE DATA SETS 
TO ENSURE THEIR SYSTEMS ARE PREPARED FOR THE UPCOMING CHANGE. 
/USE LOWERCASE LETTERS/

FTP://FTPPRD.NCEP.NOAA.GOV/PUB/DATA1/NCCF/COM/CFS/PARA/
FORECAST.YYYYMMDD

THE ENVIRONMENTAL MODELING CENTER /EMC/ HAS A PUBLICLY AVAILABLE 
WEBSITE WHICH CAN PROVIDE USERS MORE INFORMATION CONCERNING THE 
CFS /PLEASE USE LOWERCASE LETTERS/

HTTP://CFS.NCEP.NOAA.GOV

DATA DELIVERY TIMING/VOLUME/CONTENT CHANGES:

NOAAPORT DATA:

THESE DATA SETS ARE NOT AVAILABLE ON NOAAPORT.

NWS FTP SERVER: /USE LOWERCASE LETTERS EXCEPT FOR THE SL...S...MT 
AND MR/ 

FTP://TGFTP.NWS.NOAA.GOV/SL.US008001/ST.OPNL/MT.CFS_MR.FCST
FTP://TGFTP.NWS.NOAA.GOV/SL.US008001/ST.OPNL/MT.CFS_MR.CLIM

- NO CHANGE IS EXPECTED IN THE CONTENT DELIVERY TIME.
- NO SIGNIFICANT CHANGE IN DATA VOLUMES ARE EXPECTED.
- NO CHANGE IN PDS CONTENT IS EXPECTED.
- NEW MEMBERS WILL BECOME AVAILABLE ON THE DAY OF IMPLEMENTATION.


NCEP FTP SERVER: /USE LOWERCASE LETTERS/

FTP://FTPPRD.NCEP.NOAA.GOV/PUB/DATA1/NCCF/COM/CFS/PROD

- NO CHANGE IS EXPECTED IN THE CONTENT DELIVERY TIME.
- NO SIGNIFICANT CHANGE IN DATA VOLUMES ARE EXPECTED.
- NO CHANGE IN PDS CONTENT IS EXPECTED.
- NEW MEMBERS WILL BECOME AVAILABLE ON THE DAY OF IMPLEMENTATION.

NCEP ENCOURAGES ALL USERS TO ENSURE THEIR DECODERS ARE FLEXIBLE 
AND ARE ABLE TO ADEQUATELY HANDLE CHANGES IN CONTENT 
ORDER...PARAMETER FIELDS CHANGING ORDER...CHANGES IN THE SCALING 
FACTOR COMPONENT WITHIN THE PDS OF THE GRIB FILES AND ANY VOLUME 
CHANGES WHICH MAY BE FORTHCOMING. THESE ELEMENTS MAY CHANGE WITH 
FUTURE NCEP MODEL IMPLEMENTATIONS. NCEP WILL MAKE EVERY ATTEMPT 
TO ALERT USERS TO THESE CHANGES BEFORE IMPLEMENTATION.

FOR QUESTIONS REGARDING THE SCIENTIFIC CONTENT OF THE MODELING 
SYSTEM...PLEASE CONTACT: 

     SURANJANA SAHA
     NCEP/EMC
     CAMP SPRINGS MD 20746
     PHONE: 301-763-8000X7236
     EMAIL: SURANJANA.SAHA@NOAA.GOV

FOR QUESTIONS REGARDING THE DATAFLOW ASPECTS OF THESE DATA 
SETS...PLEASE CONTACT THE NCEP/NCO/PMB DATAFLOW HELP DESK EMAIL 
ADDRESS BELOW.

/USE LOWERCASE LETTERS FOR THE FOLLOWING PORTION OF THE EMAIL 
ADDRESS BELOW/: /ATAFLOW/

     EMAIL: NCEP.PMB.DATAFLOW@NOAA.GOV

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

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

$$
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