S
Saulo R. Freitas
Researcher at Universities Space Research Association
Publications - 167
Citations - 6386
Saulo R. Freitas is an academic researcher from Universities Space Research Association. The author has contributed to research in topics: Aerosol & Regional Atmospheric Modeling System. The author has an hindex of 40, co-authored 156 publications receiving 5324 citations. Previous affiliations of Saulo R. Freitas include University of Buenos Aires & National Institute for Space Research.
Papers
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Journal ArticleDOI
A scale and aerosol aware stochastic convective parameterization for weather and air quality modeling
Georg Grell,Saulo R. Freitas +1 more
TL;DR: In this paper, a convective parameterization is described and evaluated that may be used in high resolution non-hydrostatic mesoscale models as well as in modeling system with unstructured varying grid resolutions and for convection aware simulations.
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Drought sensitivity of Amazonian carbon balance revealed by atmospheric measurements
Luciana V. Gatti,Manuel Gloor,John B. Miller,Christopher E. Doughty,Yadvinder Malhi,Lucas G. Domingues,Luana S. Basso,A. Martinewski,Caio S. C. Correia,V.F. Borges,Saulo R. Freitas,R. Braz,Liana O. Anderson,Humberto Ribeiro da Rocha,John Grace,Oliver L. Phillips,Jon Lloyd +16 more
TL;DR: The results suggest that moisture has an important role in determining the Amazonian carbon balance, and the Amazon may become an increasing carbon source as a result of both emissions from fires and the suppression of net biome exchange by drought.
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Including the sub-grid scale plume rise of vegetation fires in low resolution atmospheric transport models
Saulo R. Freitas,Karla Longo,Robert B. Chatfield,D. Latham,M. A. F. Silva Dias,M. A. F. Silva Dias,Meinrat O. Andreae,E. M. Prins,J.C. Santos,Ralf Gielow,João Andrade de Carvalho +10 more
TL;DR: In this article, the authors describe and evaluate a parameterization to include the vertical transport of hot gases and particles emitted from biomass burning in low-resolution atmospheric-chemistry transport models, which is simulated by embedding a 1D cloud-resolving model with appropriate lower boundary conditions in each column of the 3D host model.
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Transport of Biomass Burning Smoke to the Upper Troposphere by Deep Convection in the Equatorial Region.
Meinrat O. Andreae,Paulo Artaxo,Horst Fischer,Saulo R. Freitas,J.-M. Grégoire,Armin Hansel,Peter Hoor,R. Kormann,Radovan Krejci,L. Lange,Jos Lelieveld,Werner Lindinger,Karla Longo,Wouter Peters,M. de Reus,Bert Scheeren,M. A. F. Silva Dias,Johan Ström,P. F. J. van Velthoven,Jonathan Williams +19 more
TL;DR: This article found atmospheric layers with aged biomass smoke at altitudes >10 km over Suriname during LBA-CLAIRE-98 and estimated that 80-95% of accumulation mode aerosols had been removed during convective transport.
Journal ArticleDOI
Monitoring the transport of biomass burning emissions in South America
Saulo R. Freitas,Karla Longo,Maria Assunção Faus da Silva Dias,Pedro Leite da Silva Dias,Robert B. Chatfield,E. M. Prins,Paulo Artaxo,Georg Grell,Fernando S. Recuero +8 more
TL;DR: In this paper, the atmospheric transport of biomass burning emissions in the South American and African continents is monitored annually using a numerical simulation of air mass motions; they use a tracer transport capability developed within RAMS (Regional Atmospheric Modeling System) coupled to an emission model.