NOTE: The nws-changes mailing list is no longer active. The list archives are made available for historical reasons.
-------- Original Message --------937 NOUS41 KWBC 151937
PNSWSH TECHNICAL IMPLEMENTATION NOTICE 10-35NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 340 PM EDT THU JULY 15 2010
TO: SUBSCRIBERS:
-FAMILY OF SERVICES
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
OTHER NWS PARTNERS...AND NWS EMPLOYEES
FROM: TIM MCCLUNG
CHIEF SCIENCE PLANS BRANCH
OFFICE OF SCIENCE AND TECHNOLOGY
SUBJECT: HORIZONTAL RESOLUTION CHANGES FOR CONUS RTMA ON NDGD
EFFECTIVE SEPTEMBER 14 2010.
ON TUESDAY SEPTEMBER 14 2010 AT 1200 COORDINATED UNIVERSAL TIME /UTC/ THE NATIONAL CENTERS FOR ENVIRONMENTAL PREDICTION /NCEP/ WILL CHANGE THE HORIZONTAL RESOLUTION OF THE REAL TIME MESOSCALE ANALYSIS /RTMA/ FOR THE CONTIGUOUS UNITED STATES /CONUS/ ON THE NATIONAL DIGITAL GUIDANCE DATABASE /NDGD/.
THE RTMA IS A SET OF GRIDDED SURFACE ANALYSES AND SURFACE ANALYSIS UNCERTAINLY FIELDS MADE AVAILABLE AT AN HOURLY TEMPORAL FREQUENCY. THE CONUS RTMA ARE NOW AVAILABLE ON BOTH NOAAPORT AND NDGD AT A HORIZONTAL RESOLUTION OF 5 KILOMETERS /KM/. THE CONUS RTMA WILL CHANGE FROM A HORIZONTAL RESOLUTION OF 5 TO 2.5 KM ON THE NDGD WITH THE EXCEPTION OF THE GOES EFFECTIVE CLOUD AMOUNT WHICH WILL REMAIN AT A HORIZONTAL RESOLUTION OF 5 KM.
ONLY THE CONUS RTMA ON THE NDGD WILL CHANGE RESOLUTION...THE CONUS RTMA AVAILABLE ON NOAAPORT WILL CONTINUE TO BE AVAILABLE AT A HORIZONTAL RESOLUTION OF 5 KM. THE 2.5 KM RTMA PRODUCTS WILL BE ADDED TO NOAAPORT IN THE COMING MONTHS. A SEPARATE TECHNICAL IMPLEMENTATION NOTICE /TIN/ WILL BE ISSUED ANNOUNCING THAT CHANGE.
THE GRIDS LISTED IN TABLE 1 BELOW WILL CHANGE TO A RESOLUTION OF 2.5 KM. THE GRIDS LISTED IN TABLE 2 WILL CONTINUE TO BE PROVIDED AT A HORIZONTAL RESOLUTION OF 5 KM.
TABLE 1: FILENAMES FOR CONUS RTMA AT 2.5 KM ON NDGD
FILENAME RTMA PARAMETER DS.TEMP.BIN TEMPERATURE DS.UTEMP.BIN TEMPERATURE ANALYSIS UNCERTAINTY DS.TD.BIN DEWPOINT TEMPERATURE DS.UTD.BIN DEWPOINT TEMPERATURE UNCERTAINTY DS.WSPD.BIN WIND SPEED DS.UWSPD.BIN WIND SPEED ANALYSIS UNCERTAINTY DS.WDIR.BIN WIND DIRECTION DS.UWDIR.BIN WIND DIRECTION ANALYSIS UNCERTAINTY DS.PRECIPA.BIN ACCUMULATED PRECIPITATION DS.PRESS.BIN SURFACE PRESSURE ANALYSIS DS.UPRESS.BIN SURFACE PRESSURE ANALYSIS UNCERTAINTY DS.TERRAINH.BIN MODEL TERRAIN HEIGHT
TABLE 2: FILENAMES FOR CONUS RTMA AT 5 KM ON NDGD FILENAME RTMA PARAMETER DS.SKY.BIN GOES EFFECTIVE CLOUD AMOUNTTHE RTMA DATA FOR THE CONUS IS AVAILABLE FROM NDGD AT: /USE LOWERCASE EXCEPT FOR SL...ST...DF...DC...GT AND AR/:
FTP://TGFTP.NWS.NOAA.GOV/SL.US008001/ST.EXPR/DF.GR2/DC.NDGD/ GT.RTMA/AR.CONUS
UNDER THE MAIN DIRECTORY FOR THE CONUS RTMA TWENTY-FOUR SUBDIRECTORIES EXIST ON THE NDGD...ONE FOR EACH HOUR OF THE DAY...RT.00...RT.01...RT.02...THROUGH RT.23. EXPERIMENTAL 2.5KM RTMA DATA FOR THE CONUS IS CURRENTLY AVAILABLE AT /USE LOWERCASE/:
FTP://FTP.EMC.NCEP.NOAA.GOV/MMB/MMBPLL/RTMA/HRES/PARALLELNOTE THAT THIS IS EXPERIMENTAL DATA AND MAY NOT BE CONSISTENTLY AVAILABLE AT ALL TIMES. THE RTMA DATA FOR CONUS AT 2.5 KM HORIZONTAL RESOLUTION WILL BE MADE AVAILABLE ONCE THE PROCESSING IS RUNNING IN PARALLEL AT NCEP IN EARLY AUGUST. THE DATA WILL BE AVAILABLE VIA HTTP AND FTP ON THE NCEP SERVER AT: /USE LOWERCASE/
HTTP://WWW.FTP.NCEP.NOAA.GOV/DATA/NCCF/COM/RTMA2P5/PARA ORFTP://FTP.NCEP.NOAA.GOV/PUB/DATA/NCCF/COM/RTMA2P5/PARA THERE ARE TWO FILES FOR EACH HOUR LOCATED ON THIS SERVER. FILES WITH NAMES SUCH AS RTMA.00Z.2DVARANL_NDFD.GRB2 CONTAIN ALL OF THE RTMA ANALYSIS FIELDS AND THE ASSOCIATED ERRORS. FILES WITH NAMES SUCH AS RTMA.00Z.2DVARGES_NDFD.GRB2 CONTAIN THE FIRST GUESS FIELDS USED BY THE RTMA.
NCEP WILL CONTINUE TO REFINE THE RTMA. USERS MAY PROVIDE FEEDBACK ON THE EXPERIMENTAL RTMA PRODUCTS AT /USE LOWERCASE EXCEPT FOR RTMA/:
HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RTMA FOR QUESTIONS REGARDING THE RTMA PLEASE CONTACT: GEOFF DIMEGO NCEP/ENVIRONMENTAL MODELING BRANCH CAMP SPRINGS MD 20746 PHONE: 301-763-8000 x 7221 EMAIL: GEOFF.DIMEGO@xxxxxxxxALL NATIONAL TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE ONLINE AT /USE LOWERCASE/: HTTP://WWW.WEATHER.GOV/OS/NOTIF.HTM $$ NNNN
nws-changes archives: