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http://weather.gov/datamgmt/notices.shtml 2005/07/13 DM 05-05.14 Extend GFS Ensemble WAFS Grids on SBN/NOAAPORT. NOXX10 KWBC 242026 DATA MGT MESSAGE 05-05.14 TO AWIPS/NOAAPORT USERS.. FAMILY OF SERVICES/FOS/SUBSCRIBERS... EMERGENCY MANAGERS WEATHER INFORMATION NETWORK /EMWIN/ NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS... WAFS USERS... GTS USERS... NWS FAX CHART USERS FROM RTH WASHINGTON DATA MANAGEMENT AWIPS CHANGE NOTICE NO AC779 EFFECTIVE DATE JULY 13 2005 [AC779] ON THE ABOVE EFFECTIVE DATE THE FOLLOWING GFS ENSEMBLE WAFS GRID PRODUCTS WILL BE ADDED TO THE AWIPS/NOAAPORT DATASTREAM. BRIAN GOCKEL [301] 713-0304 EXTENSION 158 IS THE COGNIZANT TECHNICAL INDIVIDUAL. HENRY ROBINSON [301] 713-1373 EXTENSION 173 IS THE DRG FOCAL POINT FOR THIS ITEM. THE FOLLOWING PRODUCTS WILL BE ADDED TO THE AWIPS/NOAAPORT DATASTREAM: WMO HEADER ---------- TEMPERATURE FOR OCTANT K [39]. SECOND HEADER CHARACTER IS T FOR THIS PARAMETER AND MAX/MIN TEMPERATURES BELOW. ALSO SEE NOTE 2. HTKU## KWBK [90&192 HR] HTKM## KWBK [96 HR] HTKV## KWBK [102 HR] HTKN## KWBK [108 HR] HTKW## KWBK [114 HR] HTKO## KWBK [120 HR] HTKZ## KWBK [NOTE 9] HTKP## KWBK [132 HR] HTKQ## KWBK [144 HR] HTKR## KWBK [156 HR] HTKS## KWBK [168 HR] HTKT## KWBK [180 HR] TEMPERATURE FOR OCTANT L [40]. SECOND HEADER CHARACTER IS T FOR THIS PARAMETER AND MAX/MIN TEMPERATURES BELOW. ALSO SEE NOTE 2. HTLU## KWBK [90&192 HR] HTLM## KWBK [96 HR] HTLV## KWBK [102 HR] HTLN## KWBK [108 HR] HTLW## KWBK [114 HR] HTLO## KWBK [120 HR] HTLZ## KWBK [NOTE 9] HTLP## KWBK [132 HR] HTLQ## KWBK [144 HR] HTLR## KWBK [156 HR] HTLS## KWBK [168 HR] HTLT## KWBK [180 HR] GEOPOTENTIAL HEIGHT FOR OCTANT K [39]. SECOND HEADER CHARACTER IS H. SEE NOTE 3. HHKU## KWBK [90&192 HR] HHKM## KWBK [96 HR] HHKV## KWBK [102 HR] HHKN## KWBK [108 HR] HHKW## KWBK [114 HR] HHKO## KWBK [120 HR] HHKZ## KWBK [NOTE 9] HHKP## KWBK [132 HR] HHKQ## KWBK [144 HR] HHKR## KWBK [156 HR] HHKS## KWBK [168 HR] HHKT## KWBK [180 HR] GEOPOTENTIAL HEIGHT FOR OCTANT L [40]. SECOND HEADER CHARACTER IS H. SEE NOTE 3. HHLU## KWBK [90&192 HR] HHLM## KWBK [96 HR] HHLV## KWBK [102 HR] HHLN## KWBK [108 HR] HHLW## KWBK [114 HR] HHLO## KWBK [120 HR] HHLZ## KWBK [NOTE 9] HHLP## KWBK [132 HR] HHLQ## KWBK [144 HR] HHLR## KWBK [156 HR] HHLS## KWBK [168 HR] HHLT## KWBK [180 HR] HRKU## KWBK [90&192 HR] HRKM## KWBK [96 HR] HRKV## KWBK [102 HR] HRKN## KWBK [108 HR] HRKW## KWBK [114 HR] HRKO## KWBK [120 HR] HRKZ## KWBK [NOTE 9] HRKP## KWBK [132 HR] HRKQ## KWBK [144 HR] HRKR## KWBK [156 HR] HRKS## KWBK [168 HR] HRKT## KWBK [180 HR] RELATIVE HUMIDITY FOR OCTANT L [40]. SECOND HEADER CHARACTER IS R. SEE NOTE 4. HRLU## KWBK [90&192 HR] HRLM## KWBK [96 HR] HRLV## KWBK [102 HR] HRLN## KWBK [108 HR] HRLW## KWBK [114 HR] HRLO## KWBK [120 HR] HRLZ## KWBK [NOTE 9] HRLP## KWBK [132 HR] HRLQ## KWBK [144 HR] HRLR## KWBK [156 HR] HRLS## KWBK [168 HR] HRLT## KWBK [180 HR] U COMPONENT OF WIND FOR OCTANT K [39]. SECOND HEADER CHARACTER IS U. SEE NOTE 5. HUKU## KWBK [90&192 HR] HUKM## KWBK [96 HR] HUKV## KWBK [102 HR] HUKN## KWBK [108 HR] HUKW## KWBK [114 HR] HUKO## KWBK [120 HR] HUKZ## KWBK [NOTE 9] HUKP## KWBK [132 HR] HUKQ## KWBK [144 HR] HUKR## KWBK [156 HR] HUKS## KWBK [168 HR] HUKT## KWBK [180 HR] U COMPONENT OF WIND FOR OCTANT L [40]. SECOND HEADER CHARACTER IS U. SEE NOTE 5. HULU## KWBK [90&192 HR] HULM## KWBK [96 HR] HULV## KWBK [102 HR] HULN## KWBK [108 HR] HULW## KWBK [114 HR] HULO## KWBK [120 HR] HULZ## KWBK [NOTE 9] HULP## KWBK [132 HR] HULQ## KWBK [144 HR] HULR## KWBK [156 HR] HULS## KWBK [168 HR] HULT## KWBK [180 HR] V COMPONENT OF WIND FOR OCTANT K [39]. SECOND HEADER CHARACTER IS V. SEE NOTE 5. HVKU## KWBK [90&192 HR] HVKM## KWBK [96 HR] HVKV## KWBK [102 HR] HVKN## KWBK [108 HR] HVKW## KWBK [114 HR] HVKO## KWBK [120 HR] HVKZ## KWBK [NOTE 9] HVKP## KWBK [132 HR] HVKQ## KWBK [144 HR] HVKR## KWBK [156 HR] HVKS## KWBK [168 HR] HVKT## KWBK [180 HR] V COMPONENT OF WIND FOR OCTANT L [40]. SECOND HEADER CHARACTER IS V. SEE NOTE 5. HVLU## KWBK [90&192 HR] HVLM## KWBK [96 HR] HVLV## KWBK [102 HR] HVLN## KWBK [108 HR] HVLW## KWBK [114 HR] HVLO## KWBK [120 HR] HVLZ## KWBK [NOTE 9] HVLP## KWBK [132 HR] HVLQ## KWBK [144 HR] HVLR## KWBK [156 HR] HVLS## KWBK [168 HR] HVLT## KWBK [180 HR] TOTAL ACCUMULATED PRECIPITATION AT SURFACE FOR OCTANT K [39]. SECOND HEADER CHARACTER IS E. SEE NOTE 6. HEKU## KWBK [90&192 HR] HEKM## KWBK [96 HR] HEKV## KWBK [102 HR] HEKN## KWBK [108 HR] HEKW## KWBK [114 HR] HEKO## KWBK [120 HR] HEKZ## KWBK [NOTE 9] HEKP## KWBK [132 HR] HEKQ## KWBK [144 HR] HEKR## KWBK [156 HR] HEKS## KWBK [168 HR] HEKT## KWBK [180 HR] TOTAL ACCUMULATED PRECIPITATION AT SURFACE FOR OCTANT L [40]. SECOND HEADER CHARACTER IS E. SEE NOTE 6. HELU## KWBK [90&192 HR] HELM## KWBK [96 HR] HELV## KWBK [102 HR] HELN## KWBK [108 HR] HELW## KWBK [114 HR] HELO## KWBK [120 HR] HELZ## KWBK [NOTE 9] HELP## KWBK [132 HR] HELQ## KWBK [144 HR] HELR## KWBK [156 HR] HELS## KWBK [168 HR] HELT## KWBK [180 HR] MEAN SEA LEVEL PRESSURE FOR OCTANT K [39]. SECOND HEADER CHARACTER IS P. SEE NOTE 7. HPKU## KWBK [90&192 HR] HPKM## KWBK [96 HR] HPKV## KWBK [102 HR] HPKN## KWBK [108 HR] HPKW## KWBK [114 HR] HPKO## KWBK [120 HR] HPKZ## KWBK [NOTE 9] HPKP## KWBK [132 HR] HPKQ## KWBK [144 HR] HPKR## KWBK [156 HR] HPKS## KWBK [168 HR] HPKT## KWBK [180 HR] MEAN SEA LEVEL PRESSURE FOR OCTANT L [40]. SECOND HEADER CHARACTER IS P. SEE NOTE 7. HPLU## KWBK [90&192 HR] HPLM## KWBK [96 HR] HPLV## KWBK [102 HR] HPLN## KWBK [108 HR] HPLW## KWBK [114 HR] HPLO## KWBK [120 HR] HPLZ## KWBK [NOTE 9] HPLP## KWBK [132 HR] HPLQ## KWBK [144 HR] HPLR## KWBK [156 HR] HPLS## KWBK [168 HR] HPLT## KWBK [180 HR] MINIMUM TEMPERATURE FOR OCTANT K [39]. SECOND HEADER CHARACTER IS T FOR THIS PARAMETER AND OTHER TEMPERATURE PARAMETERS. SEE NOTE 8. HTKU## KWBK [90&192 HR] HTKM## KWBK [96 HR] HTKV## KWBK [102 HR] HTKN## KWBK [108 HR] HTKW## KWBK [114 HR] HTKO## KWBK [120 HR] HTKZ## KWBK [NOTE 9] HTKP## KWBK [132 HR] HTKQ## KWBK [144 HR] HTKR## KWBK [156 HR] HTKS## KWBK [168 HR] HTKT## KWBK [180 HR] MINIMUM TEMPERATURE FOR OCTANT L [40]. SECOND HEADER CHARACTER IS T FOR THIS PARAMETER AND OTHER TEMPERATURE PARAMETERS. SEE NOTE 8. HTLU## KWBK [90&192 HR] HTLM## KWBK [96 HR] HTLV## KWBK [102 HR] HTLN## KWBK [108 HR] HTLW## KWBK [114 HR] HTLO## KWBK [120 HR] HTLZ## KWBK [NOTE 9] HTLP## KWBK [132 HR] HTLQ## KWBK [144 HR] HTLR## KWBK [156 HR] HTLS## KWBK [168 HR] HTLT## KWBK [180 HR] MAXIMUM TEMPERATURE FOR OCTANT K [39]. SECOND HEADER CHARACTER IS T FOR THIS PARAMETER AND OTHER TEMPERATURE PARAMETERS. SEE NOTE 8. HTKU## KWBK [90&192 HR] HTKM## KWBK [96 HR] HTKV## KWBK [102 HR] HTKN## KWBK [108 HR] HTKW## KWBK [114 HR] HTKO## KWBK [120 HR] HTKZ## KWBK [NOTE 9] HTKP## KWBK [132 HR] HTKQ## KWBK [144 HR] HTKR## KWBK [156 HR] HTKS## KWBK [168 HR] HTKT## KWBK [180 HR] MAXIMUM TEMPERATURE FOR OCTANT L [40]. SECOND HEADER CHARACTER IS T FOR THIS PARAMETER AND OTHER TEMPERATURE PARAMETERS. SEE NOTE 8. HTLU## KWBK [90&192 HR] HTLM## KWBK [96 HR] HTLV## KWBK [102 HR] HTLN## KWBK [108 HR] HTLW## KWBK [114 HR] HTLO## KWBK [120 HR] HTLZ## KWBK [NOTE 9] HTLP## KWBK [132 HR] HTLQ## KWBK [144 HR] HTLR## KWBK [156 HR] HTLS## KWBK [168 HR] HTLT## KWBK [180 HR] TOTAL SIZE41.8 MBYTES PER MODEL RUN 8712 GRIDS PER MODEL RUN NOTES: 1. THE FREQUENCIES IN COLUMN 9 CORRESPOND TO EACH MODEL RUN. THERE WILL BE TWO MODEL DISTRIBUTIONS PER DAY: 00UTC AND 12UTC. GENERALLY THE FREQUENCIES WERE COMPUTED AS FOLLOWS: [NUMBER OF LEVELS] X [NUMBER OF ENSEMBLE MEMBERS [TYPICALLY 11]] X [NUMBER OF TIMESTEPS PER HEADER [TYPICALLY ONE BUT SOMETIMES TWO OR SIX AS DESCRIBED IN NOTE 9].] 2. THE TEMPERATURE HEADERS CORRESPOND TO THE FOLLOWING FOUR LEVELS WITH THE ASSOCIATED WMO HEADER II VALUES IN PARENTHESES: 2 METER[98] 850MB[85] 500MB[50] AND 250MB[25]. BECAUSE THERE ARE TYPICALLY 11 MEMBERS THE FREQUENCY OF OCCURRENCE OF EACH HEADER IS GENERALLY 4 [LEVELS] TIMES 11 [MEMBERS] EQUALS 44. 3. THE GEOPOTENTIAL HEIGHT HEADERS CORRESPOND TO THE FOLLOWING FIVE LEVELS WITH THE ASSOCIATED WMO HEADER II VALUES IN PARENTHESES: 1000MB[99] 850MB[85] 700MB[70] 500MB[50] AND 250MB[25]. BECAUSE THERE ARE TYPICALLY 11 MEMBERS THE FREQUENCY OF OCCURRENCE OF EACH HEADER IS GENERALLY 5 [LEVELS] TIMES 11 [MEMBERS] EQUALS 55. 4. THE RELATIVE HUMIDITY HEADERS CORRESPOND TO ONE LEVEL WITH THE ASSOCIATED WMO HEADER II VALUE IN PARENTHESES: 700MB[70]. BECAUSE THERE ARE TYPICALLY 11 MEMBERS THE FREQUENCY OF OCCURRENCE OF EACH HEADER IS GENERALLY 11. 5. THE U AND V WIND COMPONENT HEADERS CORRESPOND TO THE FOLLOWING FOUR LEVELS WITH THE ASSOCIATED WMO HEADER II VALUES IN PARENTHESES: 10 METER[98] 850MB[85] 500MB[50] AND 250MB[25]. BECAUSE THERE ARE TYPICALLY 11 MEMBERS THE FREQUENCY OF OCCURRENCE OF EACH HEADER IS GENERALLY 4 [LEVELS] TIMES 11 [MEMBERS] EQUALS 44. 6. THE TOTAL PRECIPITATION HEADERS CORRESPOND TO ONE LEVEL WITH THE ASSOCIATED WMO HEADER II VALUE IN PARENTHESES: SURFACE[98]. BECAUSE THERE ARE TYPICALLY 11 MEMBERS THE FREQUENCY OF OCCURRENCE OF EACH HEADER IS GENERALLY 11. 7. THE MEAN SEA LEVEL PRESSURE HEADERS CORRESPOND TO ONE LEVEL WITH THE ASSOCIATED WMO HEADER II VALUE IN PARENTHESES: MSL[89]. BECAUSE THERE ARE TYPICALLY 11 MEMBERS THE FREQUENCY OF OCCURRENCE OF EACH HEADER IS GENERALLY 11. 8. THE MINIMUM AND MAXIMUM TEMPERATURE PARAMETERS CORRESPOND TO ONE LEVEL WITH THE ASSOCIATED WMO HEADER II VALUE IN PARENTHESES: 2 METER[98]. BECAUSE THERE ARE TYPICALLY 11 MEMBERS THE FREQUENCY OF OCCURRENCE OF EACH HEADER IS GENERALLY 11. 9. HEADERS OF THE FORM HXXZXX KWBK CORRESPOND TO FORECAST TIMES OF 126 138 150 162 174 AND 186 HOURS. THUS THESE HEADERS OCCUR SIX TIMES MORE FREQUENTLY THAN MOST OTHER HEADERS WHICH CORRESPOND TO ONLY ONE FORECAST TIME. SIMILARLY THE HXXUXX KWBK HEADER CORRESPONDS TO FORECAST TIMES 90 & 192 HOURS AND THEREFORE OCCURS TWICE AS OFTEN AS HEADERS WHICH CORRESPOND TO ONE FORECAST TIME. 10. OS&T/SEC ESTIMATES THAT THE MEAN SIZE OF A GFS ENSEMBLE WAFS GRID IS 4800 BYTES. THIS RC REQUESTS THE ADDITION OF 8712 GRIDS PER MODEL RUN. THEREFORE THE SIZE OF THE GFS ENSEMBLE GRID SET REQUESTED IN THIS RC IS APPROXIMATELY 41.8 MBYTES PER MODEL RUN. THIS ESTIMATE IS BASED ON THE KNOWN SIZES OF THE GFS ENSEMBLE GRIDS FOR THE 00-84 HOUR FORECAST TIME PERIOD [ALREADY DISTRIBUTED ON THE SBN] AND THE ASSUMPTION THAT THE MEAN SIZE OF THE NEW/REQUESTED GRIDS WILL BE COMPARABLE TO THOSE EXISTING GRIDS. THUS FOR THE TWO DAILY RUNS [I.E. 00 & 12 UTC] THE TOTAL DAILY VOLUME WILL BE APPROXIMATELY 83.6 MBYTES. FOR FOS/NOAAPORT AND NON-AWIPS CUSTOMERS - IF YOU HAVE ANY QUESTIONS REGARDING ROUTING OR WOULD LIKE TO ADD THESE PRODUCTS TO YOUR DATASTREAM PLEASE CONTACT. Data Management EMail nws.dm@xxxxxxxx THIS INFORMATION IS ALSO POSTED ON THE NWS DATA MANAGEMENT CHANGE NOTICES WEB PAGE. THE URL IS LISTED BELOW. http://weather.gov/datamgmt/index.html DATA MANAGEMENT TELECOMMUNICATION OPERATIONS CENTER RTH WASHINGTON SENDS --
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