1. Ozone Production from Biomass Burning in the Amazon: Preliminary WRF-Chem Simulations and Comparison with In-Situ Data from the CO-CLAIM Experiment M. M. Bela 1, K. M. Longo 2, S. R. Freitas 2, P. Artaxo 1 1 Institute of Physics, University of São Paulo 2 Center for Weather Forecasting and Climate Studies (CPTEC), National Institute for Space Research (INPE)

2. Objectives Identify Ozone Production Regimes in the Amazon Validate/Compare WRF- Chem / CCATT-BRAMS Test Model Sensitivity to Emissions Improve South American Air Quality Forecasting Context Data Emissions Simulations Conclusions

3. Amazonian Biomass Burning Global biomass burning: 70% of BC SW direct radiative forcing [Chin 2002] Amazon deforestation: 70% of Brazil’s CO 2 emissions [INPA] Context Data Emissions Simulations Conclusions Wet Season Burning Season Source: Paulo Artaxo

4. Ozone Production and Transport Context Data Emissions Simulations Conclusions Source: Saulo Freitas São Paul o No x + VOCs + H 2 O + T -> O 3 Vertical transport by deep convection Longitudinal transport by high-level winds

5. Ozone Production and Transport Context Data Emissions Simulations Conclusions Dry deposition of ozone (1.e-3 kg/m^2) (Accum. 2 months 00Z30SEP2002) Source: Karla Longo Precursors emission area Downwind formation and deposition São Paulo

6. CO-CLAIM Experiment Southern Amazon burning season 10-21 October 2007 Ozone measurements (1s) on 8 flights Context Data Emissions Simulations Conclusions Manaus Alta Floresta..

7. Ozone Data Context Data Emissions Simulations Conclusions

8. Model Setup WRF-Chem 3.0.1 40km, 136x168, 1-23 Oct. 2007 Timestep: 200s (met), 600s (chem) ICs/BCs: ECMWF (met), idealized profile (chem) Chemistry: RACM-GOCART Radiation: RRTM (longwave), Goddard (shortwave) Land-Surface Model: Noah Microphysics: 5-class mixed-phase Cumulus: Grell-Devenyi ensemble Context Data Emissions Simulations Conclusions

9. Emissions Data Fire pixels from remote sensing fire products (GOES-8 WF_ABBA, INPE_AVHRR, MODIS) weighted by vegetation type burning emissions factors [Longo and Freitas, 2006]. Context Data Emissions Simulations Conclusions CO Emissions [mol/km^2-hr] 10km domain Fire Product (DSA, ABBA) 40km domain

10. Model Results Context Data Emissions Simulations Conclusions

11. Future Work Context Data Emissions Simulations Conclusions Improve Model Initial and Boundary Conditions Land-Surface: High-Resolution Land Data Assimilation Chemistry: Global Model

12. More Future Work Model Validation with Meteorological Data 10km / 1km two-way nesting Comparisons with CCATT-BRAMS Clean Case: LBA-BARCA (November 2008) Context Data Emissions Simulations Conclusions

13. Obrigada! Fulbright Commission Brazil Steven Peckham, Georg Grell (NOAA/FSL) Rafael Mello, Rafael Stockler Marcelo Alonso (CPTEC-INPE) Maria da Fatima Andrade, Marcio Gledson, Pedro Pais Lopes (IAG-USP)