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

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Presentation transcript:

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

2 Analysis Ocean Wind Waves LSM Ens. Gen Ecosystem Etc Physics (1,2,3) ESMF Utilities (clock, error handling, etc) Bias Corrector Post processor & Product Generator Verification Resolution change ESMF Superstructure (component definitions, “mpi” communications, etc) Multi-component ensemble + Stochastic forcing Coupler1 Coupler2 Coupler3 Coupler4 Coupler5 Coupler6 Etc. Dynamics (1,2) Application Driver NOAA Environmental Modeling System (NEMS) (uses standard ESMF compliant software) * 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…) Atmospheric Model Chemistry

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 Could include

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: –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 –Global and regional application –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 Development activityWho?Where Architecture design, project leadershipIredellEMC Nesting capabilityBlack, AbelesEMC, IBM Parallel restart capabilityVasicEMC Parallel I/O capability and quiltingJ. Wang, VasicEMC GRIB2 and NETCDF developmentJ. WangEMC Install NCEP postprocessorJ. WangEMC Run time ensemble couplingW. YangEMC Install GFS physicsVasicEMC Digital filter initializationColonEMC System testingVasic, Pyle, BlackEMC Gravity wave drag for NMM-BVasicEMC Aerosol application with GOCARTdaSilva, LuGSFC, EMC LIS applicationGeigerGSFC

10 Code Development (2) Development activityWho?Where FIM dynamicsHendersonESRL CFS atmosphere-ocean couplerW. YangEMC HYCOM coupler (ESMF compliant)F. BubNAVO Wave coupler (ESMF compliant)CampbellNRL/Stennis MOM4 development for NEMSSuarezGMAO

11 Code Maintenance Maintenance activityWho?Where Coordinate subversion code managementColonEMC Maintain NEMS subversion repositoryColonEMC Maintain and develop regression testsColonEMC ESMF libraries, coordination with ESMF core team and Beta testing ESMF upgrades VasicEMC I/O package (restart capability, GRIB1, grids for GFS, NMM-B, icosahedral) J. WangEMC

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