1. Doing Chemistry with GEOS-5

2. AVAILABLE GEOS-5 RESOURCES APPROACHES: “ON-Line” “OFF-Line” GEOS-5 MODELS OR MODEL COMPONENTS GEOS-5 GENERATED DATA PRODUCTS CHEMICAL PROCESS MODELS GEOS-5 CHEMISTRY INTERACTIONS

3. ON-LINE CHEMISTRY APPLICATIONS WITH GEOS-5 RADIATION MOIST (CONV) TURBULENCE (DIF) DYNAMICS (ADV) CHEM ATMOSPHERIC SIMULATION COUPLED CLIMATE/CHEMISTRY FORECASTING COUPLED MET/CHEM ANALYSIS COUPLED MET/CHEM REPLAY GEOS-5 AGCM

4. GEOS-5 Data Assimilation Systems CAP HISTORY GCM GCS AANA AGCM ANA OANA OGCM GSI OGCM REPLAY EnKF GEOS-5 DAS Structure

5. NCEP Phys GEOS-5 GCM STRUCTURE CAP HISTORY AGCM GCM OGCM AGCM DYNAMICS GWDFVCORE RADIATION COLUMN PHYSICS SOLAR IR MOIST TURB SURFACE LAKE SALT WATER VEGDYN CATCH LAND ICE LAND OGCM MIT-OGCM MOM-4 Poseidon ORAD Ocean Dynamics VEGDYN Held-Suarez BioGeoChem OBIO Thermo Ice CICE SEA ICE P-Chem AeroChem STRAT GMI GOCART

6. G3 G4 New Dynamical Core: Finite volume NCAR version Convection: RAS Radiation: Chou Prog Clouds: Bacmeister New Development Boundary Layer: Lock 2000 Gravity Waves: NCAR ESMF / MAPL GEOS-5

7. GEOS-4GEOS-3 Fraction Opt. Dep. Cloud Optical Depth in GEOS-5 GEOS-4: high clouds have very low optical depth - hence too little OH production by photolysis (plots from J. Logan compare GEOS-4 to GEOS-3 in July 2003 and 2001) GEOS-5: July 2006 cloud properties - Cloud fractions different! Optical depths larger than GEOS-4

8. AGCM AEROCHEM DYNAMICS GWDFVCORE CAP HISTORY COLUMN PROCESSES RADIATION SOLAR IR MOIST TURB SURFACE LAKE SALTWATER VEGDYN CATCH ICE LAND OGCM GOCART GMI GSFC StratChem Pchem P & L DU BC SS SU OC EMISS CHEM DEPOs GEOS-5 ON-Line Chemistry GEOS-Chem ?

9. GOCARTGSFC StratP & LGMI Combo Dust Sea Salt Sulfates Carbonaceous CO & CO 2 O x, O 3 CH 4 N2ON2O CFC 11, CFC 12, CFC 22 etc. Ox, O3 CH4 N2O CFCs Aerosols (Michigan) etc Ox, O3 CH4 N2O CFCs Data Aerosols Age of Air AEROCHEM is a container/manager for integrated packages with subcomponents. At runtime one selects one or more packages to run and in case of ambiguity,which package provides a specific input to radiation. Each package exposes its constituents to the GCM and requests specific “services” for each. AEROCHEM

10. High-resolution chemistry-climate model simulation with GEOS-5 Composition-circulation simulated in a high resolution (2/3° longitude  1/2° latitude) simulation of GEOS-5 with on-line stratospheric chemistry PV, ozone and chlorine nitrate fields at 70hPa on April 1, near the end of a cold simulated Arctic winter Coherent filaments are peeled from the edge and interior of the polar vortex

11. Off-Line CTMs and GEOS-5 GEOS-5 ANALYSES (MERRA) EXTERNAL MET DATA GEOS-5 SIMULATIONS (CLIMATE RUNS) MAP CTMF EXTERNAL CTM OTHER CTM WITH G5 CORES

12. CTMF CONSTITUENTS CAP HISTORY TPCORES GOCART GSFC StratChem Pchem P & L DU BC SS SU OC CONVECTION ADVECTION DIFFUSION MAP CTMF EMISS CHEM DEPOs CONVECTION ADVECTION CHEM EMISS DEPOs GEOSChem ? MET INGEST

13. MERRA http://gmao.gsfc.nasa.gov/merra/ Michael Bosilovich, Siegfried Schubert & Gi-Kong Kim MERRA Objectives Half-Degree by 72L to.01 mb 1979-present Parallel AMIP run GSI Analysis with IAU EMPHASIS ON WATER CYCLE  Global Precipitation, Evaporation, Land Hydrology, Cloud parameters and TPW GLOBAL HEAT AND WATER BUDGETS FOR ALL PROCESSES DIURNAL CYCLE FROM HOURLY 2-D FIELDS

14. GEOS-5 The GEOS-5 ADAS Validation: Precipitation

15. GEOS-5 The GEOS-5 ADAS Validation: Precipitation

16. IAU Implementation 03Z06Z09Z12Z18Z15Z21Z00Z03Z Background (Predictor) States Analysis Cycle Initial States for Corrector Analysis Tendencies for Corrector Corrector Segment Assimilated Analyses

18. MERRA Products 6-hourly instantaneous analysis (uvtqo) 1/2 (eta and pressure ) Standard Histories 3-D, Pressure levels, 3-hourly, 1.25x1.25x42L 2-D, Hourly, Native (1/2 degree) resolution Chemistry Forcing Reduces Resolution Histories: 1x1.25 Fvgrid 3-hourly Native (72 L) Vertical A-Grid winds TPCORE forcings: Native (Horz and Vert) C-grid FV transport parameters RAS Convection parameters Edge Diffusivities

19. Summary Our objective for chemistry studies with GEOS-5 and the MAP CTM Framework are: To support applications in weather, climate, and data assimilation modes, with various of chemistry/aerosol packages. To support both “online” or “offline” studies within a single code base, allowing for direct comparison and validation of offline methodology. To provide forcing from GMAO simulations and analyses tailored to CTMF applications. To support external “Met” forcing and Chem components in CTMF