Saulo R. Freitas

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Saulo R. Freitas

  • Sr. Scientist
  • NASA/GSFC
  • Employer: UNIVERSITIES SPACE RESEARCH ASSOCIATION
  • Research Interests

    Biomass Burning and impacts on weather, climate, and public health.

    Numerical modeling and forecasting of atmospheric dynamics and composition

    Classical and across scales convection parameterization

    Numerical methods for integrating conservation laws

    Current Projects

    Classical and across scales (or “scale-aware”) convection parameterization in GEO-5 AGCM

    Convection, clouds and atmospheric composition modeling in GEOS-5 AGCM

    Positions/Employment

    5/2016 - Present

    Senior Research Scientist

    USRA/GESTAR, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
    3/2010 - 4/2016

    Senior Research Scientist

    Brazilian's National Institute for Space Research, Sao Jose dos Campos, SP, Brazil
    3/2003 - 4/2010

    Associate Research Scientist

    Brazilian's National Institute for Space Research, Sao Jose dos Campos, SP, Brazil
    8/2014 - 7/2015

    Visiting Scientist

    NOAA Earth System Research Laboratory, Boulder, CO, USA

    Education

    1. Postdoctoral Research Associate: 2000-2001, Earth Science Division, NASA Ames Research Center, Moffett Field, CA, USA.
    2. D.Sc.: Applied Physics, 1999: University of Sao Paulo (Brazil). Thesis: Numerical Modeling of Emissions and Atmospheric Transport of Trace Gases and Aerosols from Biomass Burning over South America.
    3. M.Sc.: Physics of the Solid State, 1991: University Federal of Pernambuco (Brazil). Thesis: Modeling the Indirect Interaction between Chemisorbed Atoms.
    4. B.Sc.: Physics, 1988: University Federal of Goiás (Brazil)

    Teaching Experience

    Professor at the Meteorology and Earth System Science Graduation Programs of the Brazilian's National Institute for Space Research (INPE): 2010-2016.

    1. Special Topics on Environmental Modeling  - graduate.
    2. Basic Physics (electricity and magnetism, mechanics, thermodynamics) - undergraduate.
    3. Advised nine Ph.D. dissertations and ten Master degree theses.

    Professional Service

    1. Head of the Division of Modeling and Development of the Brazilian Center for Weather Forecasts and Climate Studies (CPTEC/INPE): 2010-2014
    2. Member of the Working Group on Numerical Experimentation (WGNE) of the World Climate Research Program and WMO Commission for Atmospheric Sciences: 2011-2016.
    3. Member of the Working Group on Atmospheric Chemistry of the Weather Research and Forecast model (WRF-Chem): 2009-present
    4. Associated Editor of the Journal of the Air & Waste Management Association: 2014-2019
    5. Guest Editor for the special issue “Coupled chemistry–meteorology modelling: status and relevance for numerical weather prediction, air quality and climate communities (SI of EuMetChem COST ES1004) (ACP/GMD EGU inter-journal SI)
    6. Member of the Editorial Board of the MDPI Atmosphere Journal: 2019-present

    Awards

    • Year's Researcher of the Brazilian's National Institute for Space Research, 2008
    • Researcher of the Brazilian's Council for Scientific and Technological Development (CNPq): Productivity Program 2006-2016.
    • NOAA/OAR Outstanding Scientific Paper: “A scale and aerosol aware stochastic convective parameterization for weather and air quality modeling", 2016.
    • NASA GMAO Peer Award Scientific Achievement 2020

    Other Professional Information

    ORCID identity: orcid.org/0000-0002-9879-646X

    ResearcherID: http://www.researcherid.com/rid/A-2279-2012

    Google Scholar: https://scholar.google.com.br/citations?user=QOIDTywAAAAJ&hl=pt-BR

    Special Experience

    Development of Real-Time Operational Forecasts at the Brazilian's National Institute for Space Research:
    1. Integrated air quality and weather forecasts over South America.  Real-time operational products available in  http://meioambiente.cptec.inpe.br since 2003.
    2. High-resolution weather forecasts over South America on 5 km spatial resolution with the mesoscale model BRAMS. Real-time operational products available in  http://previsaonumerica.cptec.inpe.br/golMapWeb/DadosPages?id=Brams5) since January of 2013.
     

    Selected Publications

    Refereed

    Freitas, S. R., G. A. Grell, and H. Li. 2021. "The Grell–Freitas (GF) convection parameterization: recent developments, extensions, and applications." Geoscientific Model Development, 14 (9): 5393-5411 [10.5194/gmd-14-5393-2021]

    Arnold, N. P., W. M. Putman, and S. R. Freitas. 2020. "Impact of Resolution and Parameterized Convection on the Diurnal Cycle of Precipitation in a Global Nonhydrostatic Model." Journal of the Meteorological Society of Japan. Ser. II, 98: (In Press) [10.2151/jmsj.2020-066]

    Freitas, S. R., W. M. Putman, N. P. Arnold, D. K. Adams, and G. A. Grell. 2020. "Cascading towards a km‐scale GCM; Impacts of a scale‐aware convection parameterization in the Goddard Earth Observing System GCM." Geophysical Research Letters, 47: [10.1029/2020gl087682]

    Freire, J. L., K. M. Longo, S. R. Freitas, et al. C. A. Coelho, A. M. Molod, J. Marshak, A. Silva, and B. Z. Ribeiro. 2020. "To What Extent Biomass Burning Aerosols Impact South America Seasonal Climate Predictions?" Geophysical Research Letters, 47 (16): [10.1029/2020gl088096]

    Stanfield, R. E., H. Su, J. H. Jiang, et al. S. R. Freitas, A. M. Molod, Z. J. Luo, L. Huang, and M. Luo. 2019. "Convective entrainment rates estimated from Aura CO and CloudSat/CALIPSO observations and comparison with GEOS‐5." Journal of Geophysical Research: Atmospheres, 2019JD030846 [10.1029/2019jd030846]

    Yu, P., K. D. Froyd, R. W. Portmann, et al. O. B. Toon, S. R. Freitas, C. G. Bardeen, C. Brock, T. Fan, R.-S. Gao, J. M. Katich, A. Kupc, S. Liu, C. Maloney, D. M. Murphy, K. H. Rosenlof, G. Schill, J. P. Schwarz, and C. Williamson. 2019. "Efficient In-Cloud Removal of Aerosols by Deep Convection." Geophysical Research Letters, [10.1029/2018gl080544]

    Santos, F., K. Longo, A. Guenther, et al. S. Kim, D. Gu, D. Oram, G. Forster, J. Lee, J. Hopkins, J. Brito, and S. Freitas. 2018. "Biomass burning emission disturbances of isoprene oxidation in a tropical forest." Atmospheric Chemistry and Physics, 18 (17): 12715-12734 [10.5194/acp-18-12715-2018]

    Ruivo, H. M., H. F. Velho, F. M. Ramos, and S. R. Freitas. 2018. "Data Mining for Flooding Episode in the States of Alagoas and Pernambuco—Brazil." American Journal of Climate Change, 07 (03): 420-430 [10.4236/ajcc.2018.73025]

    Martins, V. S., E. M. Novo, A. Lyapustin, et al. L. E. Aragão, S. R. Freitas, and C. C. Barbosa. 2018. "Seasonal and interannual assessment of cloud cover and atmospheric constituents across the Amazon (2000–2015): Insights for remote sensing and climate analysis." ISPRS Journal of Photogrammetry and Remote Sensing, 145 (Part B): 309-327 [10.1016/j.isprsjprs.2018.05.013]

    Freitas, S. R., G. A. Grell, A. Molod, et al. M. A. Thompson, W. M. Putman, C. M. Santos e Silva, and E. P. Souza. 2018. "Assessing the Grell-Freitas Convection Parameterization in the NASA GEOS Modeling System." Journal of Advances in Modeling Earth Systems, [10.1029/2017ms001251]

    Moreira, D. S., K. M. Longo, S. R. Freitas, et al. M. A. Yamasoe, L. M. Mercado, N. E. Rosário, E. Gloor, R. S. Viana, J. B. Miller, L. V. Gatti, K. T. Wiedemann, L. K. Domingues, and C. C. Correia. 2017. "Modelling the radiative effects of smoke aerosols on carbon fluxes inAmazon." Atmospheric Chemistry and Physics, 17: 14785–14810 [10.5194/acp-17-14785-2017]

    Lima, J. M., A. K. Guetter, S. R. Freitas, J. Panetta, and J. G. de Mattos. 2017. "A Meteorological–Statistic Model for Short-Term Wind Power Forecasting." Journal of Control, Automation and Electrical Systems, [10.1007/s40313-017-0329-8]

    Baklanov, A., D. Brunner, G. Carmichael, et al. J. Flemming, S. Ribeiro De Freitas, M. Gauss, Ø. Hov, R. Mathur, K. H. Schlünzen, C. Seigneur, and B. Vogel. 2017. "Key issues for seamless integrated chemistry-meteorology modeling." Bulletin of the American Meteorological Society, BAMS-D-15-00166.1 [10.1175/bams-d-15-00166.1]

    Sánchez Gácita, M., K. M. Longo, J. L. Freire, S. R. Freitas, and S. T. Martin. 2017. "Impact of mixing state and hygroscopicity on CCN activity of biomass burning aerosol in Amazonia." Atmos. Chem. Phys., 17: 2373-2392 [10.5194/acp-17-2373-2017]

    Freitas, S. R., J. Panetta, K. Longo De Freitas, et al. K. M. Longo, L. F. Rodrigues, D. S. Moreira, N. E. Ros'ario, P. L. Silva Dias, M. A. Silva Dias, E. P. Souza, E. D. Freitas, M. Longo, A. Frassoni, A. L. Fazenda, C. M. Santos e Silva, C. A. Pavani, D. Eiras, D. A. França, D. Massaru, F. B. Silva, F. Cavalcante, G. Pereira, G. Camponogara, G. A. Ferrada, H. F. Campos Velho, I. Menezes, J. L. Freire, M. F. Alonso, M. S. G'acita, M. Zarzur, R. M. Fonseca, R. S. Lima, R. A. Siqueira, R. Braz, S. Tomita, V. Oliveira, and L. D. Martins. 2017. "The Brazilian developments on the Regional Atmospheric Modeling System (BRAMS 5.2): an integrated environmental model tuned for tropical areas." Geoscientific Model Development, 2017: 189-222 [10.5194/gmd-10-189-2017]

    Pavani, C. A., S. R. Freitas, W. F. Lima, et al. S. M. Coelho, N. M. Rosário, D. S. Moreira, and M. C. Yoshida. 2016. "Incluindo Funcionalidades no Modelo BRAMS para Simular o Transporte de Cinzas Vulcânicas: Descrição e Análise de Sensibilidade Aplicada ao Evento Eruptivo do Puyehue em 2011." Revista Brasileira de Meteorologia, 31 (4): 377-393 [10.1590/0102-778631231420150035]

    Walter, C., S. R. Freitas, C. Kottmeier, et al. I. Kraut, D. Rieger, H. Vogel, and B. Vogel. 2016. "The Importance of Plume Rise on the Concentrations and Atmospheric Impacts of Biomass Burning Aerosol." Atmos. Chem. Phys., 9201-9219 [10.5194/acp-16-9201-2016]

    Scovronick, N., D. França, M. Alonso, et al. C. Almeida, K. Longo, S. Freitas, B. Rudorff, and P. Wilkinson. 2016. "Air Quality and Health Impacts of Future Ethanol Production and Use in São Paulo State, Brazil." International Journal of Environmental Research and Public Health, 13 (7): 695 [10.3390/ijerph13070695]

    Pereira, G., R. Siqueira, N. E. Rosário, et al. K. L. Longo, S. R. Freitas, F. S. Cardozo, J. W. Kaiser, and M. J. Wooster. 2016. "Assessment of fire emission inventories during the South American Biomass Burning Analysis (SAMBBA) experiment." Atmos. Chem. Phys., 16 (11): 6961-6975 [10.5194/acp-16-6961-2016]

    Pereira, G., R. Siqueira, N. E. Rosário, et al. K. Longo, S. R. Freitas, F. S. Cardozo, J. W. Kaiser, and M. J. Wooster. 2016. "Assessment of fire emissions inventories during the South American Biomass Burning Analysis (SAMBBA) experiment." Atmos. Chem. Phys., 1-23 [10.5194/acp-16-6961-2016]

    Fowler, L. D., W. C. Skamarock, G. A. Grell, S. R. Freitas, and M. G. Duda. 2016. "Analyzing the Grell-Freitas convection scheme from hydrostatic to non hydrostatic scales within a global model." Monthly Weather Review, MWR-D-15-0311.1 [10.1175/mwr-d-15-0311.1]

    Paugam, R., M. Wooster, S. Freitas, and M. Val Martin. 2016. "A review of approaches to estimate wildfire plume injection height within large-scale atmospheric chemical transport models." Atmos. Chem. Phys., 16 (2): 907-925 [10.5194/acp-16-907-2016]

    Archer-Nicholls, S., D. Lowe, E. Darbyshire, et al. W. T. Morgan, M. M. Bela, G. Pereira, J. Trembath, J. W. Kaiser, K. M. Longo, S. R. Freitas, H. Coe, and G. McFiggans. 2015. "Characterising Brazilian biomass burning emissions using WRF-Chem with MOSAIC sectional aerosol." Geosci. Model Dev., 8 (3): 549-577 [10.5194/gmd-8-549-2015]

    Bela, M. M., K. M. Longo, S. R. Freitas, et al. D. S. Moreira, V. Beck, S. C. Wofsy, C. Gerbig, K. Wiedemann, M. O. Andreae, and P. Artaxo. 2015. "Ozone production and transport over the Amazon Basin during the dry-to-wet and wet-to-dry transition seasons." Atmos. Chem. Phys., 15 (2): 757-782 [10.5194/acp-15-757-2015]

    França, D., K. Longo, B. Rudorff, et al. D. Aguiar, S. Freitas, R. Stockler, and G. Pereira. 2014. "Pre-harvest sugarcane burning emission inventories based on remote sensing data in the state of São Paulo, Brazil." Atmospheric Environment, 99: 446-456 [10.1016/j.atmosenv.2014.10.010]

    Grell, G. A., and S. R. Freitas. 2014. "A scale and aerosol aware stochastic convective parameterization for weather and air quality modeling." Atmos. Chem. Phys., 14 (10): 5233-5250 [10.5194/acp-14-5233-2014]

    Gatti, L. V., M. Gloor, J. B. Miller, et al. C. E. Doughty, Y. Malhi, L. G. Domingues, L. S. Basso, A. Martinewski, C. S. Correia, V. F. Borges, S. Freitas, R. Braz, L. O. Anderson, H. Rocha, J. Grace, O. L. Phillips, and J. Lloyd. 2014. "Drought sensitivity of Amazonian carbon balance revealed by atmospheric measurements." Nature, 506 (7486): 76-80 [10.1038/nature12957]

    dos Santos, A. F., S. R. Freitas, J. G. de Mattos, et al. H. F. de Campos Velho, M. A. Gan, E. F. da Luz, and G. A. Grell. 2013. "Using the Firefly optimization method to weight an ensemble of rainfall forecasts from the Brazilian developments on the Regional Atmospheric Modeling System (BRAMS)." Advances in Geosciences, 35: 123-136 [10.5194/adgeo-35-123-2013]

    Longo, K. M., S. R. Freitas, M. Pirre, et al. V. Marécal, L. F. Rodrigues, J. Panetta, M. F. Alonso, N. E. Rosário, D. S. Moreira, M. S. Gácita, J. Arteta, R. Fonseca, R. Stockler, D. M. Katsurayama, A. Fazenda, and M. Bela. 2013. "The Chemistry CATT-BRAMS model (CCATT-BRAMS 4.5): a regional atmospheric model system for integrated air quality and weather forecasting and research." Geosci. Model Dev., 6 (5): 1389-1405 [10.5194/gmd-6-1389-2013]

    Moreira, D. S., S. R. Freitas, J. P. Bonatti, et al. L. M. Mercado, N. M. Rosário, K. M. Longo, J. B. Miller, M. Gloor, and L. V. Gatti. 2013. "Coupling between the JULES land-surface scheme and the CCATT-BRAMS atmospheric chemistry model (JULES-CCATT-BRAMS1.0): applications to numerical weather forecasting and the CO2 budget in South America." Geosci. Model Dev., 6 (4): 1243-1259 [10.5194/gmd-6-1243-2013]

    Beck, V., C. Gerbig, T. Koch, et al. M. M. Bela, K. M. Longo, S. R. Freitas, J. O. Kaplan, C. Prigent, P. Bergamaschi, and M. Heimann. 2013. "WRF-Chem simulations in the Amazon region during wet and dry season transitions: evaluation of methane models and wetland inundation maps." Atmos. Chem. Phys., 13 (16): 7961-7982 [10.5194/acp-13-7961-2013]

    Steensen, T., M. Stuefer, P. Webley, G. Grell, and S. Freitas. 2013. "Qualitative comparison of Mount Redoubt 2009 volcanic clouds using the PUFF and WRF-Chem dispersion models and satellite remote sensing data." Journal of Volcanology and Geothermal Research, 259: 235-247 [10.1016/j.jvolgeores.2012.02.018]

    Stuefer, M., S. R. Freitas, G. Grell, et al. P. Webley, S. Peckham, S. A. McKeen, and S. D. Egan. 2013. "Inclusion of ash and SO2 emissions from volcanic eruptions in WRF-Chem: development and some applications." Geosci. Model Dev., 6 (2): 457-468 [10.5194/gmd-6-457-2013]

    Santos, A. F., H. F. Campos Velho, E. F. Luz, et al. S. R. Freitas, G. Grell, and M. A. Gan. 2013. "Firefly optimization to determine the precipitation field on South America." Inverse Problems in Science and Engineering, 21 (3): 451-466 [10.1080/17415977.2012.712531]

    Longo De Freitas, K., S. Ribeiro De Freitas, M. O. Andreae, R. Yokelson, and P. Artaxo. 2013. "Biomass Burning in Amazonia: Emissions, Long‐Range Transport of Smoke and Its Regional and Remote Impacts." Geophysical Monograph Series, [https://doi.org/10.1029/2008GM000717]

    Rosário, N. E., K. M. Longo, S. R. Freitas, M. A. Yamasoe, and R. M. Fonseca. 2013. "Modeling the South American regional smoke plume: aerosol optical depth variability and surface shortwave flux perturbation." Atmos. Chem. Phys., 13 (6): 2923-2938 [10.5194/acp-13-2923-2013]

    Webley, P. W., T. Steensen, M. Stuefer, et al. G. Grell, S. Freitas, and M. Pavolonis. 2012. "Analyzing the Eyjafjallajökull 2010 eruption using satellite remote sensing, lidar and WRF-Chem dispersion and tracking model." J. Geophys. Res., 117 (D20): [10.1029/2011jd016817]

    Andreae, M. O., P. Artaxo, V. Beck, et al. M. Bela, S. Freitas, C. Gerbig, K. Longo, J. W. Munger, K. T. Wiedemann, and S. C. Wofsy. 2012. "Carbon monoxide and related trace gases and aerosols over the Amazon Basin during the wet and dry seasons." Atmos. Chem. Phys., 12 (13): 6041-6065 [10.5194/acp-12-6041-2012]

    França, D. D., K. M. Longo, T. G. Neto, et al. J. C. Santos, S. R. Freitas, B. F. Rudorff, E. V. Cortez, E. Anselmo, and J. A. Carvalho. 2012. "Pre-Harvest Sugarcane Burning: Determination of Emission Factors through Laboratory Measurements." Atmosphere, 3 (4): 164-180 [10.3390/atmos3010164]

    Freitas, S. R., L. F. Rodrigues, K. M. Longo, and J. Panetta. 2012. "Impact of a monotonic advection scheme with low numerical diffusion on transport modeling of emissions from biomass burning." Journal of Advances in Modeling Earth Systems, 3: M01001 [10.1029/2011ms000084]

    Grell, G., S. R. Freitas, M. Stuefer, and J. Fast. 2011. "Inclusion of biomass burning in WRF-Chem: impact of wildfires on weather forecasts." Atmos. Chem. Phys., 11 (11): 5289-5303 [10.5194/acp-11-5289-2011]

    Freitas, S. R., K. M. Longo, M. F. Alonso, et al. M. Pirre, V. Marecal, G. Grell, R. Stockler, R. F. Mello, and M. Sánchez Gácita. 2011. "PREP-CHEM-SRC – 1.0: a preprocessor of trace gas and aerosol emission fields for regional and global atmospheric chemistry models." Geosci. Model Dev., 4 (2): 419-433 [10.5194/gmd-4-419-2011]

    Alonso, M. F., K. M. Longo, S. R. Freitas, et al. R. Mello da Fonseca, V. Marécal, M. Pirre, and L. G. Klenner. 2010. "An urban emissions inventory for South America and its application in numerical modeling of atmospheric chemical composition at local and regional scales." Atmospheric Environment, 44 (39): 5072-5083 [10.1016/j.atmosenv.2010.09.013]

    São Sabbas, F. T., M. J. Taylor, P.-D. Pautet, et al. M. Bailey, S. Cummer, R. R. Azambuja, J. P. Santiago, J. N. Thomas, O. Pinto, N. N. Solorzano, N. J. Schuch, S. R. Freitas, N. J. Ferreira, and J. C. Conforte. 2010. "Observations of prolific transient luminous event production above a mesoscale convective system in Argentina during the Sprite2006 Campaign in Brazil." Journal of Geophysical Research: Space Physics, 115 (A11): [10.1029/2009ja014857]

    Longo, K. M., S. R. Freitas, M. O. Andreae, et al. A. Setzer, E. Prins, and P. Artaxo. 2010. "The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) – Part 2: Model sensitivity to the biomass burning inventories." Atmos. Chem. Phys., 10 (13): 5785-5795 [10.5194/acp-10-5785-2010]

    Marécal, V., M. Pirre, E. D. Rivière, et al. N. Pouvesle, J. N. Crowley, S. R. Freitas, and K. M. Longo. 2010. "Modelling the reversible uptake of chemical species in the gas phase by ice particles formed in a convective cloud." Atmos. Chem. Phys., 10 (10): 4977-5000 [10.5194/acp-10-4977-2010]

    Nehrkorn, T., J. Eluszkiewicz, S. C. Wofsy, et al. J. C. Lin, C. Gerbig, M. Longo, and S. Freitas. 2010. "Coupled weather research and forecasting–stochastic time-inverted lagrangian transport (WRF–STILT) model." Meteorology and Atmospheric Physics, 107 (1-2): 51-64 [10.1007/s00703-010-0068-x]

    Freitas, S. R., K. M. Longo, J. Trentmann, and D. Latham. 2010. "Technical Note: Sensitivity of 1-D smoke plume rise models to the inclusion of environmental wind drag." Atmos. Chem. Phys., 10 (2): 585-594 [10.5194/acp-10-585-2010]

    Grell, G., J. Fast, W. I. Gustafson, et al. S. E. Peckham, S. McKeen, M. Salzmann, and S. Freitas. 2010. "On-Line Chemistry Within WRF: Description and Evaluation of a State-of-the-Art Multiscale Air Quality and Weather Prediction Model." Integrated Systems of Meso-Meteorological and Chemical Transport Models, 41-54 [10.1007/978-3-642-13980-2_3]

    Torres, O., Z. Chen, H. T. Jethva, et al. C. Ahn, S. Freitas, and P. K. Bhartia. 2010. "OMI and MODIS observations of the anomalous 2008–2009 Southern Hemisphere biomass burning seasons." Atmos. Chem. Phys., 10 (8): 3505-3513 [10.5194/acp-10-3505-2010]

    Pereira, G., S. R. Freitas, E. C. Moraes, et al. N. J. Ferreira, Y. E. Shimabukuro, V. B. Rao, and K. M. Longo. 2009. "Estimating trace gas and aerosol emissions over South America: Relationship between fire radiative energy released and aerosol optical depth observations." Atmospheric Environment, 43 (40): 6388-6397 [10.1016/j.atmosenv.2009.09.013]

    Brioude, J., O. R. Cooper, G. Feingold, et al. M. Trainer, S. R. Freitas, D. Kowal, J. Ayers, E. Prins, P. Minnis, S. A. McKeen, G. J. Frost, and E.-Y. Hsie. 2009. "Effect of biomass burning on marine stratocumulus clouds off the California coast." Atmos. Chem. Phys., 9 (22): 8841-8856 [10.5194/acp-9-8841-2009]

    Landulfo, E., S. R. Freitas, K. M. Longo, S. T. Uehara, and P. Sawamura. 2009. "A comparison study of regional atmospheric simulations with an elastic backscattering Lidar and sunphotometry in an urban area." Atmos. Chem. Phys., 9 (18): 6767-6774 [10.5194/acp-9-6767-2009]

    Freitas, S. R., K. M. Longo, and L. F. Rodrigues. 2009. "Modelagem numérica da composição química da atmosfera e seus impactos no tempo, clima e qualidade do ar." Revista Brasileira de Meteorologia, 24 (2): 188-207 [10.1590/s0102-77862009000200008]

    Freitas, S. R., K. M. Longo, M. A. Silva Dias, et al. R. Chatfield, P. Silva Dias, P. Artaxo, M. O. Andreae, G. Grell, L. F. Rodrigues, A. Fazenda, and J. Panetta. 2009. "The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) – Part 1: Model description and evaluation." Atmos. Chem. Phys., 9 (8): 2843-2861 [10.5194/acp-9-2843-2009]

    Santos e Silva, C. M., R. Gielow, and S. Ribeiro De Freitas. 2009. "Diurnal and semidiurnal rainfall cycles during the rain season in SW Amazonia, observed via rain gauges and estimated using S-band radar." Atmospheric Science Letters, 10 (2): 87-93 [10.1002/asl.214]

    González, M., C. Dapeña, B. Cerne, et al. O. Sánchez-Ccoyllo, S. Freitas, P. L. Silva Dias, and H. Panarello. 2009. "Verification of the geographical origin of modeled air-mass trajectories by means of the isotope composition of rainwater during the SALLJEX experiment." Environmental Fluid Mechanics, 9 (4): 409-425 [10.1007/s10652-009-9121-z]

    Silva, M., F. Gonçalves, and S. R. Freitas. 2009. "Two case studies of sulfate scavenging processes in the Amazon region (Rondônia)." Environmental Pollution, 157 (2): 637-645 [10.1016/j.envpol.2008.08.016]

    Santos e Silva, C. M., S. Ribeiro De Freitas, R. Gielow, and S. S. de Barros. 2009. "Evaluation of high-resolution precipitation estimate over the Amazon Basin." Atmospheric Science Letters, [10.1002/asl.242]

    Guan, H., R. B. Chatfield, S. R. Freitas, R. W. Bergstrom, and K. M. Longo. 2008. "Modeling the effect of plume-rise on the transport of carbon monoxide over Africa with NCAR CAM." Atmos. Chem. Phys., 8 (22): 6801-6812 [10.5194/acp-8-6801-2008]

    Santos, A. F., A. M. Mendonça, J. P. Bonatti, et al. J. G. de Mattos, P. Y. Kubota, S. R. Freitas, M. A. Silva Dias, E. Ramirez, and R. Camayo. 2008. "Evaluation of the CPTEC/AGCM wind forecasts during the hurricane Catarina occurrence." Advances in Geosciences, 14: 317-326 [10.5194/adgeo-14-317-2008]

    Lloyd, J., O. Kolle, H. Fritsch, et al. S. Ribeiro De Freitas, M. A. Silva Dias, P. Artaxo, A. D. Nobre, A. C. de Araújo, B. Kruijt, L. Sogacheva, G. Fisch, A. Thielmann, U. Kuhn, and M. O. Andreae. 2007. "An airborne regional carbon balance for Central Amazonia." Biogeosciences, 4 (5): 759-768 [10.5194/bg-4-759-2007]

    Freitas, S. R., K. M. Longo, R. Chatfield, et al. D. Latham, M. A. Silva Dias, M. O. Andreae, E. Prins, J. C. Santos, R. Gielow, and J. A. Carvalho. 2007. "Including the sub-grid scale plume rise of vegetation fires in low resolution atmospheric transport models." Atmos. Chem. Phys., 7 (13): 3385-3398 [10.5194/acp-7-3385-2007]

    Marécal, V., G. Durry, K. Longo, et al. S. Freitas, E. D. Rivière, and M. Pirre. 2007. "Mesoscale modelling of water vapour in the tropical UTLS: two case studies from the HIBISCUS campaign." Atmos. Chem. Phys., 7 (5): 1471-1489 [10.5194/acp-7-1471-2007]

    Fernandes, W. A., I. R. Pinto, O. Pinto, K. M. Longo, and S. R. Freitas. 2006. "New findings about the influence of smoke from fires on the cloud-to-ground lightning characteristics in the Amazon region." Geophysical Research Letters, 33 (20): L20810 [10.1029/2006gl027744]

    Marécal, V., E. D. Rivière, G. Held, S. Cautenet, and S. Ribeiro De Freitas. 2006. "Modelling study of the impact of deep convection on the utls air composition - Part I: Analysis of ozone precursors." Atmos. Chem. Phys., 6 (6): 1567-1584 [10.5194/acp-6-1567-2006]

    Freitas, S. R., K. M. Longo, and M. O. Andreae. 2006. "Impact of including the plume rise of vegetation fires in numerical simulations of associated atmospheric pollutants." Geophysical Research Letters, 33 (17): L17808 [10.1029/2006gl026608]

    Freitas, S. R., K. M. Longo, M. A. Dias, and P. L. Dias. 2005. "Emissões de queimadas em ecossistemas da América do Sul." Estudos Avançados, 19 (53): 167-185 [10.1590/s0103-40142005000100011]

    Freitas, S. R., K. M. Longo, M. A. Silva Dias, et al. P. L. Silva Dias, R. Chatfield, E. Prins, P. Artaxo, G. A. Grell, and F. S. Recuero. 2005. "Monitoring the transport of biomass burning emissions in South America." Environ Fluid Mech, 5 (1-2): 135-167 [10.1007/s10652-005-0243-7]

    Lu, L., A. S. Denning, M. A. da Silva-Dias, et al. P. da Silva-Dias, M. Longo, S. R. Freitas, and S. Saatchi. 2005. "Mesoscale circulations and atmospheric CO2variations in the Tapajós Region, Pará, Brazil." Journal of Geophysical Research, 110 (D21): D21102 [10.1029/2004jd005757]

    Gonçalves, F., A. Ramos, S. Freitas, M. Silva Dias, and O. Massambani. 2002. "In-cloud and below-cloud numerical simulation of scavenging processes at Serra Do Mar region, SE Brazil." Atmospheric Environment, 36 (33): 5245-5255 [10.1016/s1352-2310(02)00461-2]

    Andreae, M. O., P. Artaxo, H. Fischer, et al. S. R. Freitas, J.-M. Grégoire, A. Hansel, P. Hoor, R. Kormann, R. Krejci, L. Lange, J. Lelieveld, W. Lindinger, K. Longo, W. Peters, M. de Reus, B. Scheeren, M. A. Silva Dias, J. Ström, P. F. van Velthoven, and J. Williams. 2001. "Transport of biomass burning smoke to the upper troposphere by deep convection in the equatorial region." Geophysical Research Letters, 28 (6): 951-954 [10.1029/2000gl012391]

    Freitas, S. R., M. A. Dias, P. L. Dias, et al. K. M. Longo, P. Artaxo, M. O. Andreae, and H. Fischer. 2000. "A convective kinematic trajectory technique for low-resolution atmospheric models." J. Geophys. Res., 105 (D19): 24375-24386 [10.1029/2000jd900217]

    Freitas, S. R., M. A. Dias, and P. L. Dias. 2000. "Modeling the Convective Transport of Trace Gases by Deep and Moist Convection." Hybrid Methods in Engineering, 2 (3): 14 [10.1615/hybmetheng.v2.i3.70]

    Longo, K. M., A. M. Thompson, V. W. Kirchhoff, et al. L. A. Remer, S. Ribeiro De Freitas, M. A. Dias, P. Artaxo, W. Hart, J. D. Spinhirne, and M. A. Yamasoe. 1999. "Correlation between smoke and tropospheric ozone concentration in Cuiabá during Smoke, Clouds, and Radiation-Brazil (SCAR-B)." J. Geophys. Res., 104 (D10): 12113-12129 [10.1029/1999jd900044]

    Ribeiro De Freitas, S., K. Longo De Freitas, M. A. Silva Dias, and P. Artaxo. 1996. "Numerical modeling of air mass trajectories from the biomass burning áreas of the Amazon Basin." Anais da Academia Brasileira de Ciências, 68: 193-206.

    de Freitas, S. R., and C. P. de Melo. 1992. "Model Calculations of the Indirect Interaction Between Chemisorbed Atoms." Surface Science, 217-220 [10.1007/978-3-642-76376-2_30]

    Talks, Presentations and Posters

    Invited

    The Grell-Freitas Convective Parameterization: Recent developments and applications within the NASA GEOS Global Model.

    International Workshop on Physical Parameterization at Indian Institute for Tropical Meteorology, Pune. 2017

    2 / 14 / 2017

    Grid and sub-grid scale process in tracer transport modeling.
    ECMWF Annual Seminar

    9 / 3 / 2015

    Grid and sub-grid scale process in tracer transport modeling.

    http://www.ecmwf.int/en/learning/workshops-and-seminars/past-workshops/annual-seminar-2015

     

    Advanced Study Program Seminar/NCAR.

    7 / 2015

    "Model developments related to some South America environmental problems"

    EGU General Assembly.

    5 / 2015

    Evaluating the Impact of Aerosols on Numerical Weather Prediction.

    IV CONGRESO COLOMBIANO Y CONFERENCIA INTERNACIONAL DE CALIDAD DEL AIRE Y SALUD PUBLICA

    10 / 2013

    Biomass Burning: Description and Modeling of the Impacts on the Environment and Public Health

    TRAVERSING NEW TERRAIN in METEOROLOGICAL MODELING, AIR QUALITY and DISPERSION.

    9 / 2013

    The BRAMS Model: A Brazilian Effort to Develop a Regional and Integrated Atmospheric Model Tuned for Tropical Areas

    Selected Publications

    Refereed

    Freitas, S. R., G. A. Grell, and H. Li. 2021. "The Grell–Freitas (GF) convection parameterization: recent developments, extensions, and applications." Geoscientific Model Development 14 (9): 5393-5411 [10.5194/gmd-14-5393-2021]

    Arnold, N. P., W. M. Putman, and S. R. Freitas. 2020. "Impact of Resolution and Parameterized Convection on the Diurnal Cycle of Precipitation in a Global Nonhydrostatic Model." Journal of the Meteorological Society of Japan. Ser. II (In Press) 98 [10.2151/jmsj.2020-066]

    Freitas, S. R., W. M. Putman, N. P. Arnold, D. K. Adams, and G. A. Grell. 2020. "Cascading towards a km‐scale GCM; Impacts of a scale‐aware convection parameterization in the Goddard Earth Observing System GCM." Geophysical Research Letters 47 [10.1029/2020gl087682]

    Freire, J. L., K. M. Longo, S. R. Freitas, et al. C. A. Coelho, A. M. Molod, J. Marshak, A. Silva, and B. Z. Ribeiro. 2020. "To What Extent Biomass Burning Aerosols Impact South America Seasonal Climate Predictions?" Geophysical Research Letters 47 (16): [10.1029/2020gl088096]

    Stanfield, R. E., H. Su, J. H. Jiang, et al. S. R. Freitas, A. M. Molod, Z. J. Luo, L. Huang, and M. Luo. 2019. "Convective entrainment rates estimated from Aura CO and CloudSat/CALIPSO observations and comparison with GEOS‐5." Journal of Geophysical Research: Atmospheres 2019JD030846 [10.1029/2019jd030846]

    Yu, P., K. D. Froyd, R. W. Portmann, et al. O. B. Toon, S. R. Freitas, C. G. Bardeen, C. Brock, T. Fan, R.-S. Gao, J. M. Katich, A. Kupc, S. Liu, C. Maloney, D. M. Murphy, K. H. Rosenlof, G. Schill, J. P. Schwarz, and C. Williamson. 2019. "Efficient In-Cloud Removal of Aerosols by Deep Convection." Geophysical Research Letters [10.1029/2018gl080544]

    Santos, F., K. Longo, A. Guenther, et al. S. Kim, D. Gu, D. Oram, G. Forster, J. Lee, J. Hopkins, J. Brito, and S. Freitas. 2018. "Biomass burning emission disturbances of isoprene oxidation in a tropical forest." Atmospheric Chemistry and Physics 18 (17): 12715-12734 [10.5194/acp-18-12715-2018]

    Ruivo, H. M., H. F. Velho, F. M. Ramos, and S. R. Freitas. 2018. "Data Mining for Flooding Episode in the States of Alagoas and Pernambuco—Brazil." American Journal of Climate Change 07 (03): 420-430 [10.4236/ajcc.2018.73025]

    Martins, V. S., E. M. Novo, A. Lyapustin, et al. L. E. Aragão, S. R. Freitas, and C. C. Barbosa. 2018. "Seasonal and interannual assessment of cloud cover and atmospheric constituents across the Amazon (2000–2015): Insights for remote sensing and climate analysis." ISPRS Journal of Photogrammetry and Remote Sensing 145 (Part B): 309-327 [10.1016/j.isprsjprs.2018.05.013]

    Freitas, S. R., G. A. Grell, A. Molod, et al. M. A. Thompson, W. M. Putman, C. M. Santos e Silva, and E. P. Souza. 2018. "Assessing the Grell-Freitas Convection Parameterization in the NASA GEOS Modeling System." Journal of Advances in Modeling Earth Systems [10.1029/2017ms001251]

    Moreira, D. S., K. M. Longo, S. R. Freitas, et al. M. A. Yamasoe, L. M. Mercado, N. E. Rosário, E. Gloor, R. S. Viana, J. B. Miller, L. V. Gatti, K. T. Wiedemann, L. K. Domingues, and C. C. Correia. 2017. "Modelling the radiative effects of smoke aerosols on carbon fluxes inAmazon." Atmospheric Chemistry and Physics 17 14785–14810 [10.5194/acp-17-14785-2017]

    Lima, J. M., A. K. Guetter, S. R. Freitas, J. Panetta, and J. G. de Mattos. 2017. "A Meteorological–Statistic Model for Short-Term Wind Power Forecasting." Journal of Control, Automation and Electrical Systems [10.1007/s40313-017-0329-8]

    Baklanov, A., D. Brunner, G. Carmichael, et al. J. Flemming, S. Ribeiro De Freitas, M. Gauss, Ø. Hov, R. Mathur, K. H. Schlünzen, C. Seigneur, and B. Vogel. 2017. "Key issues for seamless integrated chemistry-meteorology modeling." Bulletin of the American Meteorological Society BAMS-D-15-00166.1 [10.1175/bams-d-15-00166.1]

    Sánchez Gácita, M., K. M. Longo, J. L. Freire, S. R. Freitas, and S. T. Martin. 2017. "Impact of mixing state and hygroscopicity on CCN activity of biomass burning aerosol in Amazonia." Atmos. Chem. Phys. 17 2373-2392 [10.5194/acp-17-2373-2017]

    Freitas, S. R., J. Panetta, K. Longo De Freitas, et al. K. M. Longo, L. F. Rodrigues, D. S. Moreira, N. E. Ros'ario, P. L. Silva Dias, M. A. Silva Dias, E. P. Souza, E. D. Freitas, M. Longo, A. Frassoni, A. L. Fazenda, C. M. Santos e Silva, C. A. Pavani, D. Eiras, D. A. França, D. Massaru, F. B. Silva, F. Cavalcante, G. Pereira, G. Camponogara, G. A. Ferrada, H. F. Campos Velho, I. Menezes, J. L. Freire, M. F. Alonso, M. S. G'acita, M. Zarzur, R. M. Fonseca, R. S. Lima, R. A. Siqueira, R. Braz, S. Tomita, V. Oliveira, and L. D. Martins. 2017. "The Brazilian developments on the Regional Atmospheric Modeling System (BRAMS 5.2): an integrated environmental model tuned for tropical areas." Geoscientific Model Development 2017 189-222 [10.5194/gmd-10-189-2017]

    Pavani, C. A., S. R. Freitas, W. F. Lima, et al. S. M. Coelho, N. M. Rosário, D. S. Moreira, and M. C. Yoshida. 2016. "Incluindo Funcionalidades no Modelo BRAMS para Simular o Transporte de Cinzas Vulcânicas: Descrição e Análise de Sensibilidade Aplicada ao Evento Eruptivo do Puyehue em 2011." Revista Brasileira de Meteorologia 31 (4): 377-393 [10.1590/0102-778631231420150035]

    Walter, C., S. R. Freitas, C. Kottmeier, et al. I. Kraut, D. Rieger, H. Vogel, and B. Vogel. 2016. "The Importance of Plume Rise on the Concentrations and Atmospheric Impacts of Biomass Burning Aerosol." Atmos. Chem. Phys. 9201-9219 [10.5194/acp-16-9201-2016]

    Scovronick, N., D. França, M. Alonso, et al. C. Almeida, K. Longo, S. Freitas, B. Rudorff, and P. Wilkinson. 2016. "Air Quality and Health Impacts of Future Ethanol Production and Use in São Paulo State, Brazil." International Journal of Environmental Research and Public Health 13 (7): 695 [10.3390/ijerph13070695]

    Pereira, G., R. Siqueira, N. E. Rosário, et al. K. L. Longo, S. R. Freitas, F. S. Cardozo, J. W. Kaiser, and M. J. Wooster. 2016. "Assessment of fire emission inventories during the South American Biomass Burning Analysis (SAMBBA) experiment." Atmos. Chem. Phys. 16 (11): 6961-6975 [10.5194/acp-16-6961-2016]

    Pereira, G., R. Siqueira, N. E. Rosário, et al. K. Longo, S. R. Freitas, F. S. Cardozo, J. W. Kaiser, and M. J. Wooster. 2016. "Assessment of fire emissions inventories during the South American Biomass Burning Analysis (SAMBBA) experiment." Atmos. Chem. Phys. 1-23 [10.5194/acp-16-6961-2016]

    Fowler, L. D., W. C. Skamarock, G. A. Grell, S. R. Freitas, and M. G. Duda. 2016. "Analyzing the Grell-Freitas convection scheme from hydrostatic to non hydrostatic scales within a global model." Monthly Weather Review MWR-D-15-0311.1 [10.1175/mwr-d-15-0311.1]

    Paugam, R., M. Wooster, S. Freitas, and M. Val Martin. 2016. "A review of approaches to estimate wildfire plume injection height within large-scale atmospheric chemical transport models." Atmos. Chem. Phys. 16 (2): 907-925 [10.5194/acp-16-907-2016]

    Archer-Nicholls, S., D. Lowe, E. Darbyshire, et al. W. T. Morgan, M. M. Bela, G. Pereira, J. Trembath, J. W. Kaiser, K. M. Longo, S. R. Freitas, H. Coe, and G. McFiggans. 2015. "Characterising Brazilian biomass burning emissions using WRF-Chem with MOSAIC sectional aerosol." Geosci. Model Dev. 8 (3): 549-577 [10.5194/gmd-8-549-2015]

    Bela, M. M., K. M. Longo, S. R. Freitas, et al. D. S. Moreira, V. Beck, S. C. Wofsy, C. Gerbig, K. Wiedemann, M. O. Andreae, and P. Artaxo. 2015. "Ozone production and transport over the Amazon Basin during the dry-to-wet and wet-to-dry transition seasons." Atmos. Chem. Phys. 15 (2): 757-782 [10.5194/acp-15-757-2015]

    França, D., K. Longo, B. Rudorff, et al. D. Aguiar, S. Freitas, R. Stockler, and G. Pereira. 2014. "Pre-harvest sugarcane burning emission inventories based on remote sensing data in the state of São Paulo, Brazil." Atmospheric Environment 99 446-456 [10.1016/j.atmosenv.2014.10.010]

    Grell, G. A., and S. R. Freitas. 2014. "A scale and aerosol aware stochastic convective parameterization for weather and air quality modeling." Atmos. Chem. Phys. 14 (10): 5233-5250 [10.5194/acp-14-5233-2014]

    Gatti, L. V., M. Gloor, J. B. Miller, et al. C. E. Doughty, Y. Malhi, L. G. Domingues, L. S. Basso, A. Martinewski, C. S. Correia, V. F. Borges, S. Freitas, R. Braz, L. O. Anderson, H. Rocha, J. Grace, O. L. Phillips, and J. Lloyd. 2014. "Drought sensitivity of Amazonian carbon balance revealed by atmospheric measurements." Nature 506 (7486): 76-80 [10.1038/nature12957]

    dos Santos, A. F., S. R. Freitas, J. G. de Mattos, et al. H. F. de Campos Velho, M. A. Gan, E. F. da Luz, and G. A. Grell. 2013. "Using the Firefly optimization method to weight an ensemble of rainfall forecasts from the Brazilian developments on the Regional Atmospheric Modeling System (BRAMS)." Advances in Geosciences 35 123-136 [10.5194/adgeo-35-123-2013]

    Longo, K. M., S. R. Freitas, M. Pirre, et al. V. Marécal, L. F. Rodrigues, J. Panetta, M. F. Alonso, N. E. Rosário, D. S. Moreira, M. S. Gácita, J. Arteta, R. Fonseca, R. Stockler, D. M. Katsurayama, A. Fazenda, and M. Bela. 2013. "The Chemistry CATT-BRAMS model (CCATT-BRAMS 4.5): a regional atmospheric model system for integrated air quality and weather forecasting and research." Geosci. Model Dev. 6 (5): 1389-1405 [10.5194/gmd-6-1389-2013]

    Moreira, D. S., S. R. Freitas, J. P. Bonatti, et al. L. M. Mercado, N. M. Rosário, K. M. Longo, J. B. Miller, M. Gloor, and L. V. Gatti. 2013. "Coupling between the JULES land-surface scheme and the CCATT-BRAMS atmospheric chemistry model (JULES-CCATT-BRAMS1.0): applications to numerical weather forecasting and the CO2 budget in South America." Geosci. Model Dev. 6 (4): 1243-1259 [10.5194/gmd-6-1243-2013]

    Beck, V., C. Gerbig, T. Koch, et al. M. M. Bela, K. M. Longo, S. R. Freitas, J. O. Kaplan, C. Prigent, P. Bergamaschi, and M. Heimann. 2013. "WRF-Chem simulations in the Amazon region during wet and dry season transitions: evaluation of methane models and wetland inundation maps." Atmos. Chem. Phys. 13 (16): 7961-7982 [10.5194/acp-13-7961-2013]

    Steensen, T., M. Stuefer, P. Webley, G. Grell, and S. Freitas. 2013. "Qualitative comparison of Mount Redoubt 2009 volcanic clouds using the PUFF and WRF-Chem dispersion models and satellite remote sensing data." Journal of Volcanology and Geothermal Research 259 235-247 [10.1016/j.jvolgeores.2012.02.018]

    Stuefer, M., S. R. Freitas, G. Grell, et al. P. Webley, S. Peckham, S. A. McKeen, and S. D. Egan. 2013. "Inclusion of ash and SO2 emissions from volcanic eruptions in WRF-Chem: development and some applications." Geosci. Model Dev. 6 (2): 457-468 [10.5194/gmd-6-457-2013]

    Santos, A. F., H. F. Campos Velho, E. F. Luz, et al. S. R. Freitas, G. Grell, and M. A. Gan. 2013. "Firefly optimization to determine the precipitation field on South America." Inverse Problems in Science and Engineering 21 (3): 451-466 [10.1080/17415977.2012.712531]

    Longo De Freitas, K., S. Ribeiro De Freitas, M. O. Andreae, R. Yokelson, and P. Artaxo. 2013. "Biomass Burning in Amazonia: Emissions, Long‐Range Transport of Smoke and Its Regional and Remote Impacts." Geophysical Monograph Series [https://doi.org/10.1029/2008GM000717]

    Rosário, N. E., K. M. Longo, S. R. Freitas, M. A. Yamasoe, and R. M. Fonseca. 2013. "Modeling the South American regional smoke plume: aerosol optical depth variability and surface shortwave flux perturbation." Atmos. Chem. Phys. 13 (6): 2923-2938 [10.5194/acp-13-2923-2013]

    Webley, P. W., T. Steensen, M. Stuefer, et al. G. Grell, S. Freitas, and M. Pavolonis. 2012. "Analyzing the Eyjafjallajökull 2010 eruption using satellite remote sensing, lidar and WRF-Chem dispersion and tracking model." J. Geophys. Res. 117 (D20): [10.1029/2011jd016817]

    Andreae, M. O., P. Artaxo, V. Beck, et al. M. Bela, S. Freitas, C. Gerbig, K. Longo, J. W. Munger, K. T. Wiedemann, and S. C. Wofsy. 2012. "Carbon monoxide and related trace gases and aerosols over the Amazon Basin during the wet and dry seasons." Atmos. Chem. Phys. 12 (13): 6041-6065 [10.5194/acp-12-6041-2012]

    França, D. D., K. M. Longo, T. G. Neto, et al. J. C. Santos, S. R. Freitas, B. F. Rudorff, E. V. Cortez, E. Anselmo, and J. A. Carvalho. 2012. "Pre-Harvest Sugarcane Burning: Determination of Emission Factors through Laboratory Measurements." Atmosphere 3 (4): 164-180 [10.3390/atmos3010164]

    Freitas, S. R., L. F. Rodrigues, K. M. Longo, and J. Panetta. 2012. "Impact of a monotonic advection scheme with low numerical diffusion on transport modeling of emissions from biomass burning." Journal of Advances in Modeling Earth Systems 3 M01001 [10.1029/2011ms000084]

    Grell, G., S. R. Freitas, M. Stuefer, and J. Fast. 2011. "Inclusion of biomass burning in WRF-Chem: impact of wildfires on weather forecasts." Atmos. Chem. Phys. 11 (11): 5289-5303 [10.5194/acp-11-5289-2011]

    Freitas, S. R., K. M. Longo, M. F. Alonso, et al. M. Pirre, V. Marecal, G. Grell, R. Stockler, R. F. Mello, and M. Sánchez Gácita. 2011. "PREP-CHEM-SRC – 1.0: a preprocessor of trace gas and aerosol emission fields for regional and global atmospheric chemistry models." Geosci. Model Dev. 4 (2): 419-433 [10.5194/gmd-4-419-2011]

    Alonso, M. F., K. M. Longo, S. R. Freitas, et al. R. Mello da Fonseca, V. Marécal, M. Pirre, and L. G. Klenner. 2010. "An urban emissions inventory for South America and its application in numerical modeling of atmospheric chemical composition at local and regional scales." Atmospheric Environment 44 (39): 5072-5083 [10.1016/j.atmosenv.2010.09.013]

    São Sabbas, F. T., M. J. Taylor, P.-D. Pautet, et al. M. Bailey, S. Cummer, R. R. Azambuja, J. P. Santiago, J. N. Thomas, O. Pinto, N. N. Solorzano, N. J. Schuch, S. R. Freitas, N. J. Ferreira, and J. C. Conforte. 2010. "Observations of prolific transient luminous event production above a mesoscale convective system in Argentina during the Sprite2006 Campaign in Brazil." Journal of Geophysical Research: Space Physics 115 (A11): [10.1029/2009ja014857]

    Longo, K. M., S. R. Freitas, M. O. Andreae, et al. A. Setzer, E. Prins, and P. Artaxo. 2010. "The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) – Part 2: Model sensitivity to the biomass burning inventories." Atmos. Chem. Phys. 10 (13): 5785-5795 [10.5194/acp-10-5785-2010]

    Marécal, V., M. Pirre, E. D. Rivière, et al. N. Pouvesle, J. N. Crowley, S. R. Freitas, and K. M. Longo. 2010. "Modelling the reversible uptake of chemical species in the gas phase by ice particles formed in a convective cloud." Atmos. Chem. Phys. 10 (10): 4977-5000 [10.5194/acp-10-4977-2010]

    Nehrkorn, T., J. Eluszkiewicz, S. C. Wofsy, et al. J. C. Lin, C. Gerbig, M. Longo, and S. Freitas. 2010. "Coupled weather research and forecasting–stochastic time-inverted lagrangian transport (WRF–STILT) model." Meteorology and Atmospheric Physics 107 (1-2): 51-64 [10.1007/s00703-010-0068-x]

    Freitas, S. R., K. M. Longo, J. Trentmann, and D. Latham. 2010. "Technical Note: Sensitivity of 1-D smoke plume rise models to the inclusion of environmental wind drag." Atmos. Chem. Phys. 10 (2): 585-594 [10.5194/acp-10-585-2010]

    Grell, G., J. Fast, W. I. Gustafson, et al. S. E. Peckham, S. McKeen, M. Salzmann, and S. Freitas. 2010. "On-Line Chemistry Within WRF: Description and Evaluation of a State-of-the-Art Multiscale Air Quality and Weather Prediction Model." Integrated Systems of Meso-Meteorological and Chemical Transport Models 41-54 [10.1007/978-3-642-13980-2_3]

    Torres, O., Z. Chen, H. T. Jethva, et al. C. Ahn, S. Freitas, and P. K. Bhartia. 2010. "OMI and MODIS observations of the anomalous 2008–2009 Southern Hemisphere biomass burning seasons." Atmos. Chem. Phys. 10 (8): 3505-3513 [10.5194/acp-10-3505-2010]

    Pereira, G., S. R. Freitas, E. C. Moraes, et al. N. J. Ferreira, Y. E. Shimabukuro, V. B. Rao, and K. M. Longo. 2009. "Estimating trace gas and aerosol emissions over South America: Relationship between fire radiative energy released and aerosol optical depth observations." Atmospheric Environment 43 (40): 6388-6397 [10.1016/j.atmosenv.2009.09.013]

    Brioude, J., O. R. Cooper, G. Feingold, et al. M. Trainer, S. R. Freitas, D. Kowal, J. Ayers, E. Prins, P. Minnis, S. A. McKeen, G. J. Frost, and E.-Y. Hsie. 2009. "Effect of biomass burning on marine stratocumulus clouds off the California coast." Atmos. Chem. Phys. 9 (22): 8841-8856 [10.5194/acp-9-8841-2009]

    Landulfo, E., S. R. Freitas, K. M. Longo, S. T. Uehara, and P. Sawamura. 2009. "A comparison study of regional atmospheric simulations with an elastic backscattering Lidar and sunphotometry in an urban area." Atmos. Chem. Phys. 9 (18): 6767-6774 [10.5194/acp-9-6767-2009]

    Freitas, S. R., K. M. Longo, and L. F. Rodrigues. 2009. "Modelagem numérica da composição química da atmosfera e seus impactos no tempo, clima e qualidade do ar." Revista Brasileira de Meteorologia 24 (2): 188-207 [10.1590/s0102-77862009000200008]

    Freitas, S. R., K. M. Longo, M. A. Silva Dias, et al. R. Chatfield, P. Silva Dias, P. Artaxo, M. O. Andreae, G. Grell, L. F. Rodrigues, A. Fazenda, and J. Panetta. 2009. "The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) – Part 1: Model description and evaluation." Atmos. Chem. Phys. 9 (8): 2843-2861 [10.5194/acp-9-2843-2009]

    Santos e Silva, C. M., R. Gielow, and S. Ribeiro De Freitas. 2009. "Diurnal and semidiurnal rainfall cycles during the rain season in SW Amazonia, observed via rain gauges and estimated using S-band radar." Atmospheric Science Letters 10 (2): 87-93 [10.1002/asl.214]

    González, M., C. Dapeña, B. Cerne, et al. O. Sánchez-Ccoyllo, S. Freitas, P. L. Silva Dias, and H. Panarello. 2009. "Verification of the geographical origin of modeled air-mass trajectories by means of the isotope composition of rainwater during the SALLJEX experiment." Environmental Fluid Mechanics 9 (4): 409-425 [10.1007/s10652-009-9121-z]

    Silva, M., F. Gonçalves, and S. R. Freitas. 2009. "Two case studies of sulfate scavenging processes in the Amazon region (Rondônia)." Environmental Pollution 157 (2): 637-645 [10.1016/j.envpol.2008.08.016]

    Santos e Silva, C. M., S. Ribeiro De Freitas, R. Gielow, and S. S. de Barros. 2009. "Evaluation of high-resolution precipitation estimate over the Amazon Basin." Atmospheric Science Letters [10.1002/asl.242]

    Guan, H., R. B. Chatfield, S. R. Freitas, R. W. Bergstrom, and K. M. Longo. 2008. "Modeling the effect of plume-rise on the transport of carbon monoxide over Africa with NCAR CAM." Atmos. Chem. Phys. 8 (22): 6801-6812 [10.5194/acp-8-6801-2008]

    Santos, A. F., A. M. Mendonça, J. P. Bonatti, et al. J. G. de Mattos, P. Y. Kubota, S. R. Freitas, M. A. Silva Dias, E. Ramirez, and R. Camayo. 2008. "Evaluation of the CPTEC/AGCM wind forecasts during the hurricane Catarina occurrence." Advances in Geosciences 14 317-326 [10.5194/adgeo-14-317-2008]

    Lloyd, J., O. Kolle, H. Fritsch, et al. S. Ribeiro De Freitas, M. A. Silva Dias, P. Artaxo, A. D. Nobre, A. C. de Araújo, B. Kruijt, L. Sogacheva, G. Fisch, A. Thielmann, U. Kuhn, and M. O. Andreae. 2007. "An airborne regional carbon balance for Central Amazonia." Biogeosciences 4 (5): 759-768 [10.5194/bg-4-759-2007]

    Freitas, S. R., K. M. Longo, R. Chatfield, et al. D. Latham, M. A. Silva Dias, M. O. Andreae, E. Prins, J. C. Santos, R. Gielow, and J. A. Carvalho. 2007. "Including the sub-grid scale plume rise of vegetation fires in low resolution atmospheric transport models." Atmos. Chem. Phys. 7 (13): 3385-3398 [10.5194/acp-7-3385-2007]

    Marécal, V., G. Durry, K. Longo, et al. S. Freitas, E. D. Rivière, and M. Pirre. 2007. "Mesoscale modelling of water vapour in the tropical UTLS: two case studies from the HIBISCUS campaign." Atmos. Chem. Phys. 7 (5): 1471-1489 [10.5194/acp-7-1471-2007]

    Fernandes, W. A., I. R. Pinto, O. Pinto, K. M. Longo, and S. R. Freitas. 2006. "New findings about the influence of smoke from fires on the cloud-to-ground lightning characteristics in the Amazon region." Geophysical Research Letters 33 (20): L20810 [10.1029/2006gl027744]

    Marécal, V., E. D. Rivière, G. Held, S. Cautenet, and S. Ribeiro De Freitas. 2006. "Modelling study of the impact of deep convection on the utls air composition - Part I: Analysis of ozone precursors." Atmos. Chem. Phys. 6 (6): 1567-1584 [10.5194/acp-6-1567-2006]

    Freitas, S. R., K. M. Longo, and M. O. Andreae. 2006. "Impact of including the plume rise of vegetation fires in numerical simulations of associated atmospheric pollutants." Geophysical Research Letters 33 (17): L17808 [10.1029/2006gl026608]

    Freitas, S. R., K. M. Longo, M. A. Dias, and P. L. Dias. 2005. "Emissões de queimadas em ecossistemas da América do Sul." Estudos Avançados 19 (53): 167-185 [10.1590/s0103-40142005000100011]

    Freitas, S. R., K. M. Longo, M. A. Silva Dias, et al. P. L. Silva Dias, R. Chatfield, E. Prins, P. Artaxo, G. A. Grell, and F. S. Recuero. 2005. "Monitoring the transport of biomass burning emissions in South America." Environ Fluid Mech 5 (1-2): 135-167 [10.1007/s10652-005-0243-7]

    Lu, L., A. S. Denning, M. A. da Silva-Dias, et al. P. da Silva-Dias, M. Longo, S. R. Freitas, and S. Saatchi. 2005. "Mesoscale circulations and atmospheric CO2variations in the Tapajós Region, Pará, Brazil." Journal of Geophysical Research 110 (D21): D21102 [10.1029/2004jd005757]

    Gonçalves, F., A. Ramos, S. Freitas, M. Silva Dias, and O. Massambani. 2002. "In-cloud and below-cloud numerical simulation of scavenging processes at Serra Do Mar region, SE Brazil." Atmospheric Environment 36 (33): 5245-5255 [10.1016/s1352-2310(02)00461-2]

    Andreae, M. O., P. Artaxo, H. Fischer, et al. S. R. Freitas, J.-M. Grégoire, A. Hansel, P. Hoor, R. Kormann, R. Krejci, L. Lange, J. Lelieveld, W. Lindinger, K. Longo, W. Peters, M. de Reus, B. Scheeren, M. A. Silva Dias, J. Ström, P. F. van Velthoven, and J. Williams. 2001. "Transport of biomass burning smoke to the upper troposphere by deep convection in the equatorial region." Geophysical Research Letters 28 (6): 951-954 [10.1029/2000gl012391]

    Freitas, S. R., M. A. Dias, P. L. Dias, et al. K. M. Longo, P. Artaxo, M. O. Andreae, and H. Fischer. 2000. "A convective kinematic trajectory technique for low-resolution atmospheric models." J. Geophys. Res. 105 (D19): 24375-24386 [10.1029/2000jd900217]

    Freitas, S. R., M. A. Dias, and P. L. Dias. 2000. "Modeling the Convective Transport of Trace Gases by Deep and Moist Convection." Hybrid Methods in Engineering 2 (3): 14 [10.1615/hybmetheng.v2.i3.70]

    Longo, K. M., A. M. Thompson, V. W. Kirchhoff, et al. L. A. Remer, S. Ribeiro De Freitas, M. A. Dias, P. Artaxo, W. Hart, J. D. Spinhirne, and M. A. Yamasoe. 1999. "Correlation between smoke and tropospheric ozone concentration in Cuiabá during Smoke, Clouds, and Radiation-Brazil (SCAR-B)." J. Geophys. Res. 104 (D10): 12113-12129 [10.1029/1999jd900044]

    Ribeiro De Freitas, S., K. Longo De Freitas, M. A. Silva Dias, and P. Artaxo. 1996. "Numerical modeling of air mass trajectories from the biomass burning áreas of the Amazon Basin." Anais da Academia Brasileira de Ciências 68 193-206

    de Freitas, S. R., and C. P. de Melo. 1992. "Model Calculations of the Indirect Interaction Between Chemisorbed Atoms." Surface Science 217-220 [10.1007/978-3-642-76376-2_30]

                                                                                                                                                                                            
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