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National Environmental Modeling System (NEMS) Status

National Environmental Modeling System (NEMS) Status. M. Iredell and EMC Staff. N OAA E nvironmental M odeling S ystem ( NEMS ) (uses standard ESMF compliant software). Application Driver. ESMF Superstructure (component definitions, “mpi” communications, etc). Analysis --------------

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National Environmental Modeling System (NEMS) Status

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  1. National Environmental Modeling System (NEMS) Status M. Iredell and EMC Staff

  2. NOAA Environmental Modeling System (NEMS)(uses standard ESMF compliant software) Application Driver ESMF Superstructure (component definitions, “mpi” communications, etc) Analysis -------------- Ocean ------------- Wind Waves -------------- LSM ---------------- Ens. Gen. -------------- Ecosystem -------------- Etc Atmospheric Model Dynamics (1,2) Coupler1 Coupler2 Coupler3 Coupler4 Coupler5 Coupler6 Etc. Physics (1,2,3) Chemistry 1-1 1-2 1-3 2-1 2-2 2-3 Multi-component ensemble + Stochastic forcing Bias Corrector Post processor & Product Generator Verification Resolution change ESMF Utilities (clock, error handling, etc) * Earth System Modeling Framework (NCAR/CISL, NASA/GMAO, Navy (NRL), NCEP/EMC), NOAA/GFDL 2, 3 etc: NCEP supported thru NUOPC, NASA, NCAR or NOAA institutional commitments Components are: Dynamics (spectral, FV, NMM, FIM, ARW, FISL, COAMPS…) Physics (GFS, NRL, NCAR, GMAO, ESRL, GFDL…)

  3. Planned NEMS Capabilities • Components and capabilities of the NEMS infrastructure • Configuration control • Domain • Resolution (horizontal, vertical) • Standardized fixed field generation (WPS - topography, land use, etc) • Tracer definition • Observations ingest, formatting, QC, etc libraries • Nesting (static and moving, telescoping, 1-way, 2-way) • Concurrent ensemble execution (single executable, multiple members) • Data assimilation (3D-var and advanced techniques) • In-core updating for analysis increments and boundary conditions • Model dynamics and physics including • Atmosphere • Ocean • Land surface and hydrology • Air Quality and trace gases • Post-processor and product generator • Standard operational verification • Documentation for operational and research users

  4. Planned NEMS Capabilities (cont) • Modeling Research • Global and regional • Institutionally supported components • Atmosphere • GFS (NCEP) • NOGAPS (Navy) • FV (NASA, GFDL) • NMM (NCEP) • ARW (ESRL, NCAR, AFWA) • COAMPS (Navy) • FIM (ESRL) • FISL (NCEP) • Ocean • MOM4 (GFDL) • HYCOM (NCEP, Navy) • Waves • Wavewatch 3 • Land surface and hydrology • Noah (NCEP) & LIS (GSFC) • VIC (Princeton, U. Wash) • MOSAIC (NASA) • Sacramento (OHD) • Smirnova LSM (ESRL) • Air Quality and trace gases • CMAQ (EPA, ARL) • WRF-CHEM • GOCART (NASA) • NAAPS (Navy) Under construction Will include in future

  5. Planned NEMS Capabilities (cont) • Operational Models • Global Forecast System • GFS • Global Ensemble (GENS, NAEFS) • GFS • FIM • North American (NAM), nested apps (Fire Weather…) • NMM • Short-range Ensemble (SREF) • NMM • ARW • Physics diversity • High Resolution Window (HRW) • NMM • ARW • Rapid Refresh (RR) Ensemble • ARW Dynamics + GSD physics • NMM dynamics + NCEP physics • Air Quality (AQ) • CMAQ • Land Surface & Hydrology (LIS) • Noah & LIS • Hurricane (HUR) • NMM for hurricanes • HYCOM + Wavewatch • Ocean, waves and Seasonal Climate Forecast (CFS) • GFS for climate • MOM4 • HYCOM-Wavewatch Will include in Operational NEMS

  6. Inclusion in NEMS • Research • Adherence to ESMF standards • Documentation standards (TBD) • Institutional support for code • Participation in system evolution • Operations • Research criteria plus: • Standard “Transition to Operations” criteria • NCEP: http://www.emc.ncep.noaa.gov/ • Forecast performance benefits • IT compatibility • Efficiency • Sustainability • Extended concept for National Unified Operational Prediction Capability (NUOPC), to include • Navy • USAF

  7. NEMS Status • GFS NEMS • Runs under ESMF 3.1.0rp2 • Separate physics and dynamics components • Post-processing and history output on internal quilt processors. • NAM NEMS mesoscale model • Runs in identical model architecture • Same capabilities as GFS • One-way nesting coming in FY09 • ESRL FIM dynamics with GFS physics is being added • Other infrastructure development projects (see next slides)

  8. Oversight and Consultation • M. Iredell (EMC) • M. Suarez (GSFC) • V. Balaji (GFDL) • S. Benjamin (ESRL)

  9. Code Development

  10. Code Development (2)

  11. Code Maintenance

  12. Example of NEMS 1-way Nested System 4 km CONUS Nest Full NAM domain 4-6 km Alaska Nest

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