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Asia-Pacific Satellite Data Exchange & Utilization Meeting NCEP Update

Asia-Pacific Satellite Data Exchange & Utilization Meeting NCEP Update. 10 October 2007 Brent Gordon NCEP Central Operations. “Where America’s Climate, Weather and Ocean Services Begin”. Topics. NCEP Organization NCEP Central Computer Systems Description of Current Model Production Suite

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Asia-Pacific Satellite Data Exchange & Utilization Meeting NCEP Update

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  1. Asia-Pacific Satellite Data Exchange & Utilization MeetingNCEP Update 10 October 2007 Brent Gordon NCEP Central Operations “Where America’s Climate, Weather and Ocean Services Begin”

  2. Topics • NCEP Organization • NCEP Central Computer Systems • Description of Current Model Production Suite • Asia-Pacific Satellite Data Used Currently by NCEP • New NCEP Asia-Pacific Satellite Data Requests • Non Satellite Data Requests

  3. NCO Mission“Leading NCEP’s Information Technology”

  4. Central Computer Systems Two Identical IBM Systems for Operations • Primary located in Gaithersburg, MD • Backup located in Fairmont, WV • Each systems consists of: • 144 Power-5+ nodes • 16 Processors (32 virtual processors) per nodes • 1.9 GHz clock speed • 4608 total (virtual) processors • 32 GB memory per node • 134 TB disk storage • 125 TB tape storage • Final option on current contract in 2009 • Performance guarantee is 2.5X current CCS • Primary system to be moved to Omaha (Collocated with USAF)

  5. Central Computer Systems • R&D System - Gaithersburg • 86 Power5+ nodes • 16 processors (32 virtual) per node • 1.9 GHz clock speed • 2752 (virtual) processors • 32 GB memory per node • 160 TB disk storage • 11.3 PB tape storage R&D is ~60% of one operational system Operations R & D Mist Haze Transition Into Operations Internal/External Partnerships JCSDA Climate Test Bed Model Test Bed Dew Climate Development

  6. Current Production Suite Global Models • Global Forecast System (GFS) • Run 4 times daily to 384 hours (16 days) • T382L64 – 00-180 hours • T190L64 – 180-384 hours • Gridpoint Statistical Interpolation (GSI) analysis • Hybrid (Sigma-Pressure) vertical coordinate system

  7. Current Production Suite Global Models • Global Ensemble Forecast System (GEFS) • 20 members + 1 control – run 4 times daily • 84 total members per day • T126L28 – 00-384 hours • Producing bias corrected ensemble forecasts for 35 variables. • Supporting the NAEFS and TIGGE programs

  8. Current Production Suite Global Models • Climate Forecast System (CFS) • Currently, two fully-coupled nine-month forecasts are made every day at T62L64 resolution • The present CFS operational system is frozen • Development work is underway at EMC to improve the CFS • All data available via FTP/HTTP

  9. Current Production Suite Global Models • NOAA Wave Watch III (NWW3) • Run 4 times daily with forecasts to 180 hours • Global model run at 1.25x1.0 degree resolution • Regional and hurricane based models run at 0.25 degree resolution • Great Lakes wave model at 4 km resolution to 84 hours • Currently running a 10 member global wave ensemble system as well (84 hours – 4/day)

  10. Current Production Suite Regional Models • North American Mesoscale (NAM) • Run 4 times daily to 84 hours (with GFS extension to 192 hours) • GSI analysis with 12 km resolution covering all of North America • Now using high resolution radar data as input • Rapid Update Cycle (RUC) • Run 24 times daily to either 9 or 12 hours • 13 km resolution over US, S. Canada, N. Mexico • Hurricane Runs • Two nested models – GFDL and HWRF • Run on demand to 126 hours

  11. Current Production Suite Regional Models • Short range Regional Ensembles (SREF) • 20 members run 4/day to 84 hours over North America • Multiple model and physics cores used (40-45 km resolution) • Real Time Mesoscale Analysis (RTMA) • Hourly 5 km analysis covering continental US • Daily Real-time global SST (RTG SST HR) analysis • 1/12 deg latitude, longitude resolution – generated every day (22:30 UTC) using latest 24 h of real-time data.

  12. Current Production Suite Regional Models • Atlantic Ocean Forecast System (OFS) • Horizontal grid: 4-7 km in Gulf of Mexico and the East Coast of U.S. • Bathymetry: ETOPO2 (NGDC) • Coastal boundary: blend of bathymetry and coastline datasets (NGDC). • Surface forcing: GFS (NCEP) • River outflow/runoff: blend of observations (US rivers USGS) and climatology (RIVDIS) • Open boundaries: T,S from climatology, • SSH and barotropic velocity from tidal model (TPX06) and climatology.

  13. Current Production Suite • Most products from all of these modeling systems available via public web/ftp sites ftpprd.ncep.noaa.gov – /pub/data/nccf/com/ tgftp.nws.noaa.gov – /SL.us008001/ST.opnl/

  14. Data Requests

  15. Asia-Pacific Satellite DataUsed at NCEP Currently Used: • Low-density satellite derived visible and IR winds from GMS MTSAT (SATOB format) - used operationally in Global-GSI and NAM-GSI • COSMIC GPS Radio Occultation data (joint project between Taiwan and US) - used operationally in Global-GSI Coming Soon: • High-density satellite derived visible and IR winds from GMS MTSAT (BUFR format) - will replace above later this Fall in Global-GSI and NAM-GSI In Testing: • JMA profiler winds - still being tested but expect to use in future • Hong Kong profiler winds - still being tested but expect to use in future • High-density satellite derived water vapor winds from GMS MTSAT (BUFR format) - still being tested but may use in future

  16. New Asia-Pacific Satellite Data Requests • GPS-IPW (Integrated Precipitable Water) - ground-based stations supposedly in Japan (US POC : Seth.I.Gutman@noaa.gov) • Altimeter data (Jason-3 etc.) for sea surface height data and wave data. • Products containing SST and surface wind data as well as ocean color data

  17. Non Satellite Data Requests • We are now receiving Korean AMDAR aircraft data • Are there any other sources of AMDAR data that we are not currently receiving via GTS? • Surface mesoscale observation networks (Mesonets) • RASS (Radar Acoustic Sounding System) platforms in Japan – If available • VAD (Velocity-Azimuth Display) winds from ground based radars

  18. Non Satellite Data Requests(continued) • JMA ensemble fields – NCEP needs to explore with JMA the possibility of a real time data transfer option. • Mandatory and significant level data from CMA atmospheric rawinsondes • Currently only receive significant levels for about 1/4 of the available rawinsondes from CMA • Additional rawinsondes from the Tibet plateau • Access to real time buoy data (wave info)

  19. Questions/Comments • Contact Info: Brent Gordon NOAA/NWS/NCEP 301-763-8000 x7193 Brent.Gordon@noaa.gov

  20. Appendix

  21. New NCEP Building • After many years of planning and budget negiotiations, NCEP is finally starting to build its new facility in College Park, MD. • Occupancy to begin in early 2009 with final transition in Summer 2009

  22. Production Suite • NCEP plans to make significant changes to its production suite over the next 10 years • These changes will allow us to better use the computing resources we have or expect to have. • Users of NCEP data and products will most notice this restructuring by the different times our data and products become available

  23. NCEP Production Suite Weather, Ocean, Land & Climate Forecast Systems Current - 2007 Current (2007) GDAS NAM anal GFS anal GFS SREF HUR NAM GENS/NAEFS RDAS AQ RTOFS CFS

  24. NCEP Production Suite Weather, Ocean, Land & Climate Forecast Systems Next Generation Prototype Phase 1 - 2009 Computing factor: 3 Reforecast NAM anal GFS Anal GFS WAV HUR SREF NAM • Added • 1-Hourly RDAS • 3-Hourly GDAS • Reanalysis/ • Reforecast GENS/NAEFS AQ RTOFS CFS 1-hourly RDAS (6) 3-hourly GDAS (2)

  25. NCEP Production Suite Weather, Ocean, Land & Climate Forecast Systems Next Generation Prototype Final – 2017+ Computing factor: > 240 GLOBAL NGATS SPACE WEATHER Rap Refresh Reforecast GENS/NAEFS HENS ECOSYSTEMS HUR SREF RTOFS CFS MFS Global >100% of 2015 computing NAM RTOFS GFS WAV Regional CFS & MFS AQ Hydro / NIDIS/FF AQ CFS & MFS Hydro RDAS GDAS

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