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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The Brazilian developments on the Regional Atmospheric Modeling System (BRAMS 5.2): an integrated environmental model tuned for tropical areas

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Author(s):
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Freitas, Saulo R. ; Panetta, Jairo ; Longo, Karla M. ; Rodrigues, Luiz F. ; Moreira, Demerval S. ; Rosario, Nilton E. ; Silva Dias, Pedro L. ; Silva Dias, Maria A. F. ; Souza, Enio P. ; Freitas, Edmilson D. ; Longo, Marcos ; Frassoni, Ariane ; Fazenda, Alvaro L. ; Santos e Silva, Claudio M. ; Pavani, Claudio A. B. ; Eiras, Denis ; Franca, Daniela A. ; Massaru, Daniel ; Silva, Fernanda B. ; Santos, Fernando C. ; Pereira, Gabriel ; Camponogara, Glauber ; Ferrada, Gonzalo A. ; Campos, Haroldo F. ; Campos Velho, Haroldo F. ; Menezes, Isilda ; Freire, Julliana L. ; Alonso, Marcelo F. ; Gacita, Madeleine S. ; Zarzur, Mauricio ; Fonseca, Rafael M. ; Lima, Rafael S. ; Siqueira, Ricardo A. ; Braz, Rodrigo ; Tomita, Simone ; Oliveira, Valter ; Martins, Leila D.
Total Authors: 37
Document type: Journal article
Source: Geoscientific Model Development; v. 10, n. 1, p. 189-222, JAN 13 2017.
Web of Science Citations: 14
Abstract

We present a new version of the Brazilian developments on the Regional Atmospheric Modeling System (BRAMS), in which different previous versions for weather, chemistry, and carbon cycle were unified in a single integrated modeling system software. This new version also has a new set of state-of-the-art physical parameterizations and greater computational parallel and memory usage efficiency. The description of the main model features includes several examples illustrating the quality of the transport scheme for scalars, radiative fluxes on surface, and model simulation of rainfall systems over South America at different spatial resolutions using a scale aware convective parameterization. Additionally, the simulation of the diurnal cycle of the convection and carbon dioxide concentration over the Amazon Basin, as well as carbon dioxide fluxes from biogenic processes over a large portion of South America, are shown. Atmospheric chemistry examples show the model performance in simulating near-surface carbon monoxide and ozone in the Amazon Basin and the megacity of Rio de Janeiro. For tracer transport and dispersion, the model capabilities to simulate the volcanic ash 3-D redistribution associated with the eruption of a Chilean volcano are demonstrated. The gain of computational efficiency is described in some detail. BRAMS has been applied for research and operational forecasting mainly in South America. Model results from the operational weather forecast of BRAMS on 5 km grid spacing in the Center for Weather Forecasting and Climate Studies, INPE/Brazil, since 2013 are used to quantify the model skill of near-surface variables and rainfall. The scores show the reliability of BRAMS for the tropical and subtropical areas of South America. Requirements for keeping this modeling system competitive regarding both its functionalities and skills are discussed. Finally, we highlight the relevant contribution of this work to building a South American community of model developers. (AU)

FAPESP's process: 14/01564-8 - Modeling the indirect effect of aerosols in the Amazonian atmosphere
Grantee:Karla Maria Longo de Freitas
Support type: Scholarships abroad - Research
FAPESP's process: 15/10206-0 - Dynamic cores in mesoscale atmospheric models and their impacts on the explicit simulation of weather systems associated with convective clouds
Grantee:Haroldo Fraga de Campos Velho
Support type: Regular Research Grants
FAPESP's process: 14/01563-1 - Assessment of Impacts of inclusion of aerosol effects in numerical weather prediction over South America
Grantee:Saulo Ribeiro de Freitas
Support type: Scholarships abroad - Research