Modeling and observation of volatile organic compounds emissions in Amazonia

• Grant number: 13/03391-0
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: August 01, 2013
• End date: July 31, 2014
• Field of knowledge: Physical Sciences and Mathematics - Geosciences
• Principal Investigator: Karla Maria Longo de Freitas
• Grantee: Fernando Cavalcante dos Santos
• Supervisor: Alex B. Guenther
• Host Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia e Inovação (Brasil). São José dos Campos , SP, Brazil
• Institution abroad: National Center for Atmospheric Research (NCAR), United States
• Associated to the scholarship: 12/11676-2 - Modeling and Observation of Volatile Organic Compounds Emissions in Amazonia, BP.DR

Abstract

The terrestrial vegetation, especially tropical forests, releases large amounts of biogenic volatile organic compounds (BVOCs) into the atmosphere. It is estimated that BVOCs global emissions are dominant (1150 Tg C/year) in relation to anthropogenic volatile organic compounds (50 - 100 Tg C/year). In tropical regions, BVOCs accounts for approximately 70% of the total emission, confirming the importance of the Amazon rainforest has over global emissions of natural compounds. Analyses of BVOCs are useful for understanding regional and global atmospheric chemistry, carbon cycle and climate. Observational and modeling studies conducted in forest regions are useful in understanding regional and global atmospheric chemistry and specifically the oxidative capacity. This study intends to obtain information on the chemical composition of the atmosphere of the Amazon rainforest through experimental measurements (air and surface) and the use of CCATT-BRAMS model coupled to MEGAN model to explore the BVOCs emission, the oxidative capacity of the atmosphere and the causes that alter the system of BVOCs emissions. The coupling of MEGAN model within CCATT-BRAMS will be done online, thoughout an interface, upholding the original MEGAN code. (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)

SANTOS, FERNANDO; LONGO, KARLA; GUENTHER, ALEX; KIM, SAEWUNG; GU, DASA; ORAM, DAVE; FORSTER, GRANT; LEE, JAMES; HOPKINS, JAMES; BRITO, JOEL; et al. Biomass burning emission disturbances of isoprene oxidation in a tropical forest. Atmospheric Chemistry and Physics, v. 18, n. 17, p. 12715-12734, SEP 4 2018. (13/03391-0, 12/13575-9, 12/11676-2)