Modeling the indirect effect of aerosols in the Amazonian atmosphere

• Grant number: 14/01564-8
• Support Opportunities: Scholarships abroad - Research
• Effective date (Start): August 05, 2014
• Effective date (End): August 04, 2015
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Meteorology
• Principal Investigator: Karla Maria Longo de Freitas
• Grantee: Karla Maria Longo de Freitas
• Host Investigator: Georg Grell
• Host Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia e Inovação (Brasil). São José dos Campos , SP, Brazil
• Research place: National Oceanic and Atmospheric Administration (NOAA), United States

Abstract

This proposal is part of the effort to broaden the understanding of the indirect effects of aerosols in Amazonia in the evolution of the surrounding atmosphere. The method involves the use of data analysis and numerical modeling. For that, new developments of CCATT - BRAMS (Coupled Chemistry - Aerosol - Tracer Transport model coupled to Brazilian Regional Atmospheric Modeling System) are proposed as a modeling tool. The focus of the work will be on aerosols and their interfaces with the cloud microphysics scheme and convective parameterization module, aiming for a modeling system that allows the prediction of the number of cloud condensation nuclei, based on a more representative prediction of aerosols, considering the evolution of the particle number concentration and size distribution and chemical composition (via hygroscopicity and density) and their subsequent interaction with the procedures for activating cloud droplets. Applications for the Amazon region in the scope of the GoAmazon progam is proposed envisaging, through numerical modeling, to contribute to the understanding of the indirect effect of aerosols in the Amazon region. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GACITA, MADELEINE SANCHEZ; LONGO, KARLA M.; FREIRE, JULLIANA L. M.; FREITAS, SAULO R.; MARTIN, SCOT T.. Impact of mixing state and hygroscopicity on CCN activity of biomass burning aerosol in Amazonia. Atmospheric Chemistry and Physics, v. 17, n. 3, p. 2373-2392, FEB 15 2017. (13/02101-9, 12/13575-9, 12/09934-3, 14/01564-8)

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.; et al. The Brazilian developments on the Regional Atmospheric Modeling System (BRAMS 5.2): an integrated environmental model tuned for tropical areas. Geoscientific Model Development, v. 10, n. 1, p. 189-222, JAN 13 2017. (15/10206-0, 14/01563-1, 14/01564-8)