-------- Original Message --------
440
NOUS41 KWBC 161705
PNSWSH
TECHNICAL IMPLEMENTATION NOTICE 08-06
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1205 EST WED JAN 16 2008
TO: SUBSCRIBERS:
-FAMILY OF SERVICES
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
OTHER NWS PARTNERS, USERS AND EMPLOYEES
FROM: PAUL HIRSCHBERG
CHIEF...SCIENCE PLANS BRANCH
OFFICE OF SCIENCE AND TECHNOLOGY /OST/
SUBJECT: STREAMLINED DATA PATHWAY FOR AIR QUALITY FORECAST
GUIDANCE PRODUCTS: EFFECTIVE APRIL 1 2008
EFFECTIVE TUESDAY APRIL 1 2008...WITH THE 1200 COORDINATED
UNIVERSAL TIME /UTC/ RUN...THE NATIONAL CENTERS FOR ENVIRONMENTAL
PREDICTION /NCEP/ WILL STREAMLINE THE DISSEMINATION OF HOURLY
AIR QUALITY /AQ/ FORECAST GUIDANCE PRODUCTS WITH AGGREGATED
SUPER-HEADED PRODUCTS.
DATAFLOW CHANGES:
NCEP WILL STOP SENDING INDIVIDUAL HOURLY AQ GRID FILES FOR OZONE
AND SMOKE TO THE TELECOMMUNICATIONS OPERATIONS CENTER /TOC/...NOW
POSTED IN THE DIRECTORIES BELOW /USE LOWER CASE LETTERS EXCEPT
FOR SL...ST...MT...AND CY/:
SL.US008001/ST.OPNL/MT.CMAQ_CY.06/
SL.US008001/ST.OPNL/MT.CMAQ_CY.12/
DIRECTORY NAME CHANGES:
A SECOND COMPONENT OF THIS CHANGE IS TO REVISE THE AQ FORECAST
GUIDANCE FILE PATH ON THE NWS FTP SERVER TO THE FOLLOWING
ADDRESSES BELOW /USE ALL LOWER CASE LETTERS EXCEPT FOR
SL...ST...DF...DC...GT...AND AR/:
SL.US008001/ST.EXPR/DF.GR2/DC.NDGD/GT.AQ/AR.CONUS/DS.OZONE01.BIN
SL.US008001/ST.EXPR/DF.GR2/DC.NDGD/GT.AQ/AR.CONUS/DS.OZONE08.BIN
SL.US008001/ST.OPNL/DF.GR2/DC.NDGD/GT.AQ/AR.CONUS/DS.OZONE01.BIN
SL.US008001/ST.OPNL/DF.GR2/DC.NDGD/GT.AQ/AR.CONUS/DS.OZONE08.BIN
SL.US008001/ST.EXPR/DF.GR2/DC.NDGD/GT.AQ/AR.CONUS/DS.SMOKEC01.BIN
SL.US008001/ST.EXPR/DF.GR2/DC.NDGD/GT.AQ/AR.CONUS/DS.SMOKES01.BIN
SL.US008001/ST.OPNL/DF.GR2/DC.NDGD/GT.AQ/AR.CONUS/DS.SMOKEC01.BIN
SL.US008001/ST.OPNL/DF.GR2/DC.NDGD/GT.AQ/AR.CONUS/DS.SMOKES01.BIN
IN THE NEW PATH...GT...STANDS FOR GUIDANCE TYPE.
REASON FOR CHANGE:
FOR THE DATA PATH CHANGE: THE CURRENT DATA PATH INCLUDES
EXTRANEOUS STEPS THAT ADD TO THE DELIVERY TIME...DELAYING
PRODUCTS PAST THE REQUIRED TIMES OF AVAILABILITY. ALSO BY
STREAMLINING THE DATA PATH...POTENTIAL LATENCIES AND POINTS-OF-
FAILURE THAT CAN PREVENT PRODUCT DELIVERY WILL BE ELIMINATED.
FOR THE DIRECTORY NAME CHANGES...INTRODUCTION OF...GT...ALIGNS AQ
PRODUCTS WITH OTHER PRODUCTS IN THE NATIONAL DIGITAL GUIDANCE
DATABASE /NDGD/. THIS NEW PATH WILL ALLOW A CLEARER DISTINCTION
BETWEEN AIR QUALITY...GRIDDED MOS PRODUCTS...REAL-TIME MESOSCALE
ANALYSIS PRODUCTS...AND PROBABILISTIC SLOSH PRODUCTS IN THE NDGD.
FOR QUESTIONS CONCERNING AIR QUALITY PRODUCTS... PLEASE CONTACT:
PAULA DAVIDSON
OFFICE OF SCIENCE AND TECHNOLOGY
SILVER SPRING MARYLAND
PHONE: 301 713 3557 X171
EMAIL: PAULA.DAVIDSON@xxxxxxxx
FOR QUESTIONS CONCERNING THE DATAFLOW ASPECTS OF THIS
IMPLEMENTATION...EMAIL THE NCEP/NCO/PMB DATAFLOW HELPDESK:
NCEP.PMB.DATAFLOW@xxxxxxxx
NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE ONLINE AT
/USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
$$