[nws-changes] 20070820: upgrade of NCEP Air qual fcst-Fwd: ADMIN NOTICE NOUS41 KWBC]

[Linda Miller]

-------- Original Message --------

968 
NOUS41 KWBC 201503
PNSWSH

TECHNICAL IMPLEMENTATION NOTICE 07-57
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
11:03 AM EDT MON AUG 20 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:  UPGRADE OF THE NCEP AIR QUALITY FORECAST /CMAQ/ SYSTEM: 
          EFFECTIVE SEPTEMBER 18 2007

EFFECTIVE TUESDAY SEPTEMBER 18 2007...AT 1200 COORDINATED 
UNIVERSAL TIME /UTC/...THE NATIONAL CENTERS FOR ENVIRONMENTAL 
PREDICTION /NCEP/ WILL UPGRADE THE CMAQ MODEL RUN IN ITS 
OPERATIONAL PRODUCTION SUITE. THIS UPGRADE WILL PROVIDE THE 
FOLLOWING CHANGES TO THIS SYSTEM:

- THE OPERATIONAL CMAQ DOMAIN WILL BE EXPANDED TO COVER THE 
  ENTIRE CONTINENTAL U.S.
- IMPLEMENT THE COMMON NONHYDROSTATIC MESOSCALE MODEL /NMM/ 
  VERTICAL COORDINATE INTO CMAQ
- UPDATE NATIONAL EMISSION INVENTORY FOR CALIFORNIA WITH 2002 
  ESTIMATES
- UPDATE ALL OTHER POINT... AREA AND MOBILE SOURCE EMISSIONS 
  USING THE DEPARTMENT OF ENERGY ANNUAL ENERGY OUTLOOK FOR 2007
- IMPLEMENT THE ASYMMETRIC CONVECTIVE MODEL DEEP CONVECTIVE 
  MIXING INTO CMAQ TO REDUCE INTRUSION OF STRATOSPHERIC AIR 
  INTO THE TROPOSPHERE FROM DEEP CONVECTION
- IMPLEMENT THE ASYMMETRIC CONVECTIVE MODEL-2 BOUNDARY LAYER 
  MIXING SCHEME INTO CMAQ
- REMOVE THE USE OF GFS OZONE PREDICTION FOR CMAQ TOP LATERAL 
  BOUNDARY CONDITIONS /THIS WILL BE REIMPLEMENTED AT A LATER 
  DATE ONCE THE OVER PREDICTION BIAS CAUSED BY THESE 
  SPECIFICATIONS IS CORRECTED/

ONCE OPERATIONAL THE OUTPUT FROM THIS ENHANCED PROCESSING WILL BE 
AVAILABLE FROM THE NWS...NATIONAL DIGITAL GUIDANCE DATABASE 
/NDGD/ SERVER LOCATED AT.../USE LOWER CASE LETTERS EXCEPT FOR 
SL...ST...DF...DC AND AR/:

WEATHER.NOAA.GOV/PUB/SL.US008001/ST.OPNL/DF.GR2/DC.NDGD/AR.CONUS/

OUTPUT FROM THE NEW CMAQ MODEL SYSTEM IS CURRENTLY BEING 
GENERATED DAILY AT NCEP. THESE DATA CAN BE OBTAINED FROM THE 
EXPERIMENTAL NDGD SERVER LOCATED AT.../USE LOWER CASE LETTERS 
EXCEPT FOR SL...ST...DF...DC AND AR/:

WEATHER.NOAA.GOV/PUB/SL.US008001/ST.EXPR/DF.GR2/DC.NDGD/AR.CONUS/

MORE INFORMATION ON NCEP MODEL CHANGES CAN BE FOUND AT THE LINK 
BELOW.../USE LOWER CASE LETTERS/:

HTTP://WWW.NCO.NCEP.NOAA.GOV/PMB/CHANGES

IF YOU HAVE ANY QUESTIONS...PLEASE CONTACT: 

     JOE CARR
     NCEP...PRODUCTION MANAGEMENT BRANCH
     CAMP SPRINGS MARYLAND
     PHONE: 301 763 8000 X7709
     EMAIL: JOE.CARR at 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

$$