[nws-changes] 20080221: AMENDED: NOAA WAVE WATCH III MODEL GLOBAL GRIB OUTPUT

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-------- Original Message --------
Subject:        ADMIN NOTICE NOUS41 KWBC
Date:   Thu, 21 Feb 2008 08:45:40 -0700
From:   Unidata Local Data Manager <ldm@xxxxxxxxxxxxxxxx>
To:     ldmnotices@xxxxxxxxxxxxxxxx
526 NOUS41 KWBC 211545 
PNSWSH

TECHNICAL IMPLEMENTATION NOTICE 08-04 AMENDED
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1045 AM EST THU FEB 21 2008

TO:       SUBSCRIBERS:
-FAMILY OF SERVICES -NOAA WEATHER WIRE SERVICE -EMERGENCY MANAGERS WEATHER INFORMATION NETWORK OTHER NWS PARTNERS... USERS AND NWS EMPLOYEES 

FROM:     JASON TUELL
         CHIEF...SCIENCE PLANS BRANCH
         OFFICE OF SCIENCE AND TECHNOLOGY /OST/
SUBJECT: AMENDED: NOAA WAVE WATCH III MODEL GLOBAL GRIB OUTPUT MODIFICATION: EFFECTIVE FEBRUARY 26 2008 

REFER TO: TECHNICAL IMPLEMENTATION NOTICE /TIN/ 08-04 TRANSMITTED
         ON JANUARY 10 2008
AMENDED TO DELAY IMPLEMENTATION FROM FEBRUARY 19 TO FEBRUARY 26 2008. EFFECTIVE TUESDAY FEBRUARY 26 2008...WITH THE 1200 COORDINATED UNIVERSAL TIME /UTC/ RUN...THE NATIONAL CENTERS FOR ENVIRONMENTAL PREDICTION /NCEP/ WILL MODIFY THE GLOBAL OUTPUT GRIB2 FILE FROM THE NOAA WAVE WATCH III /NWW3/ MODEL. 

SCIENTIFIC/TECHNICAL CHANGES:
THE DOMAIN OF THE GRID IS BEING EXTENDED FROM 78 N TO 90 N. FOR NOW...THE DATA IN THE ADDITIONAL GRID POINTS WILL BE MARKED AS UNDEFINED. THE GRID POINTS WILL BE POPULATED WITH DATA AT A LATER NWW3 UPGRADE. 

DATAFLOW CHANGES:
THE GRIB2 FILE WHICH WILL BE DIRECTLY IMPACTED RESIDES ON THE NCEP FTP SERVER AT THE ADDRESS BELOW /USE ALL LOWER CASE LETTERS/. FTP://FTPPRD.NCEP.NOAA.GOV/PUB/DATA/NCCF/COM/WAVE/PROD/WAVE.YYYYM 
MDD/MULTI_1.GLO_30M.TCCZ.GRIB2
NOAAPORT CUSTOMERS DO NOT CURRENTLY RECEIVE THIS DATA SET HENCE NO IMPACT IS EXPECTED TO DATA WHICH IS RECEIVED BY NOAAPORT CUSTOMERS.
DISCLAIMER: NCEP WOULD ENCOURAGE 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 ALSO 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 PRIOR TO ANY IMPLEMENTATIONS.
PARALLEL DATA SETS ARE AVAILABLE ON THE NCEP FTP SERVER AT THE LINK BELOW. NCEP ENCOURAGES ALL USERS TO EVALUATE THESE DATA SETS TO ENSURE THAT THEIR SYSTEMS ARE PREPARED FOR THE UPCOMING CHANGE /USE LOWERCASE LETTERS/: 

    FTP://FTPPRD.NCEP.NOAA.GOV/PUB/DATA/NCCF/COM/WAVE/PARA
THE ENVIRONMENTAL MODELING CENTER /EMC/ HAS A PUBLICLY AVAILABLE WEB SITE WHICH CAN PROVIDE USERS MORE INFORMATION CONCERNING ALL NCEP MODELING SYSTEMS /USE LOWERCASE LETTERS/: 

    HTTP://WWW.EMC.NCEP.NOAA.GOV
SPECIFIC INFORMATION REGARDING THE NEW WAVE MODEL IMPLEMENTATION CAN BE FOUND AT THE LINK BELOW /USE LOWERCASE LETTERS/: 

    HTTP://POLAR.NCEP.NOAA.GOV/NEW.WAVES/WELCOME.HTML
IF YOU HAVE ANY QUESTIONS CONCERNING THE SCIENTIFIC CHANGES WITHIN THE MODELING SYSTEM...PLEASE CONTACT: 
    HENDRIK TOLMAN
    NCEP/EMC...CHIEF MARINE MODELING BRANCH
    CAMP SPRINGS MARYLAND
    PHONE: 301 763 8000 X7253
    EMAIL: HENDRIK.TOLMAN@xxxxxxxx
IF YOU HAVE ANY QUESTIONS CONCERNING THE DATAFLOW ASPECTS OF THIS IMPLEMENTATION...PLEASE SEND AN EMAIL TO THE NCEP/NCO/PMB DATAFLOW HELPDESK: NCEP.PMB.DATAFLOW@xxxxxxxx NWS TECHNICAL IMPLEMENTATION NOTICES ARE ONLINE AT /USE LOWER CASE LETTERS/: 
    HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM

$$
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