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Team Members

Team Members. Atmospheric Modeling Components. Sequential Simulations. Large-Scale Meteorology or Climate. Anthropogenic Emission Inventories. Land Use, Land Cover Data. “ Sequential ” – the models are run independently and there is only 1-way communication between models.

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Team Members

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  1. Team Members

  2. Atmospheric Modeling Components

  3. Sequential Simulations Large-Scale Meteorology or Climate Anthropogenic Emission Inventories Land Use, Land Cover Data • “Sequential” – the models are run independently and there is only 1-way communication between models Gridded, Hourly Emissions from All Sources Gridded, Hourly Meteorology Gridded, Hourly BVOC Emissions WRF-VIC MEGAN SMOKE CMAQ Gridded, Hourly Nitrogen Deposition Chemical Boundary Conditions RHEYSSys, CropSyst

  4. Coupled WRF-VIC Simulation for Sequential Runs Decisions Made! • Western-US domain: • Allows analysis of ENSO cycles • Grid Cells: • 12-km x 12-km • Decent for representing ubran vs rural influence on air quality • Historical Simulation Period: • 1979-2008, which has several ENSO periods; PDO variability too long to capture • Boundary and Initial Conditions: • NARR (~32-km resolution) • Land-Use, Land-Cover Data: • NLDAS2 (save Alex’s dataset for WRF-VIC-RHESSys-- no need to recalibrate VIC yet!) Simulation Domain

  5. Offline CMAQ Simulation for Sequential Runs • Purpose: • Model nitrogen deposition and evaluate how it’s modulated by ENSO cycles • Provide results to offline RHESSys and CropSyst simulations • Domain & Grid Cells: • A subdomain within the WRF-VIC domain • Same grid cells as WRF-VIC • Historical Simulation Period: • A few ENSO cycles during the 1979-2008 period • Chemical Boundary Conditions: • 1990s from global chemical transport model MOZART? • Anthropogenic Emission Inventory: • 1999 or 2002 National Emissions Inventory • Bioegenic Emissions: • MEGANv2.1

  6. ENSO Cycles During Historical Simulation Period El Nino La Nina http://www.esrl.noaa.gov/psd/enso/mei/

  7. Status of Coupled WRF-VIC GCM/Reanalysis Flux Coupler (CPL7) Atmosphere (WRF/Chem) Ocean (ROMS) RESM Land/Veg/C/N (CLM/VIC) Ocean (POP) Sea Ice (CSIM) Atmosphere (CAM) CESM • WRF (v3.2) and VIC (v.4.0.4) has been coupled through the CESM flux coupler CPL7 • Coupled WRF-VIC has been tested in a global and an Arctic domain (Chunmei Zhu, UW) • For BioEarth, need to create input data spatial data for VIC for our Western-US simulation & grid cells.

  8. Status of Coupled WRF-CMAQ Aerosol Optical Properties, Cloud Condensation Nuclei Ozone • Current release, CMAQv4.7.1, is not coupled to WRF • CMAQv5.0 is supposed to be released anytime now. • Two-way coupling built into WRF v3.3 • Only supports CAM and RRTMG shortwave radiation schemes • identical on-line and off-line computational paradigms with minimal code changes • flexibility in frequency of coupling WRF CMAQ AQPREP Prepares virtual CMAQ-compatible input meteorological files

  9. Coupled WRF-CMAQ Domain Setup From Wong et al., CMAS 2011 Presentation

  10. Coupled WRF-CMAQ Execution Performance From Wong et al., CMAS 2011 Presentation

  11. Coupled WRF-CMAQ Test Case Aerosol-radiation feedbacks resulted in reduced shortwave radaition reaching the surface Widespread wildfires resulted in high aerosol loading during mid/late June 2008 in California From Wong et al., CMAS 2011 Presentation

  12. Status of MEGANRecent Improvements (version 2.1) • U.S. landcover • high resolution (30-m) PFT (CLM scheme) and species composition for crops, trees, shrubs, grass. Integrates CDL, NLCD, FIA, NRCS data with adjusted NLCD in urban areas. • LAI data: MODIS 8-day for individual years • Biogenic VOC • Updated emission factors, emission activity parameters • Response to increasing CO2 • Additional compounds • Soil emissions • Biogenic VOC: soil moisture, litterfall, temperature • Nitric oxide: soil moisture, temperature and fertilizer Crops Urban

  13. Status of MEGANOngoing/Planned Activities • Integrating MEGAN into Bioearth • Coupling with VIC-RHESSys-CropSyst • Coupling with CESM/CLM (boundary conditions) • Improve soil nitrogen emissions (NO, NH3, N2O) • Add particles: pollen, fungal spores, bacteria, dust • Use MEGAN in BIOEARTH to identify scientific questions that can be addressed with a PNW regional field study • Landcover change (e.g. poplar plantations) • Interactions of biogenic emissions and anthropogenic pollution

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