Weather events and aerosol interactions in Amazonia

• Grant number: 21/03547-7
• Support Opportunities: Scholarships in Brazil - Master
• Start date: December 01, 2021
• End date: April 30, 2023
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Meteorology
• Principal Investigator: Luiz Augusto Toledo Machado
• Grantee: Gabriela Rosalino Unfer
• Host Institution: Instituto Nacional de Pesquisas Espaciais (INPE). São José dos Campos , SP, Brazil
• Associated research grant: 17/17047-0 - Aerosol and clouds life cycles in Amazonia: biogenic emissions, biomass burning and impacts on ecosystem, AP.PFPMCG.TEM
• Associated scholarship(s): 22/01780-9 - Detecting new particle formation at ATTO: evaluation of convective cloud effect, BE.EP.MS

Abstract

The investigation of open or contradictory hypotheses involving cloud-aerosol interaction is the main proposal of this project. Based on the integration of data from the ATTO tower and instruments located at the new Campina site, it is intended to evaluate topics that involve clouds vertical velocity and the concentration and formation of new particles in weather events in the Amazonia. A scanner that measures particle size (SMPS) combined with a radar wind profile (LAP3000) and a dysdrometer will provide the necessary data for this question. Among the more specific aspects, we also seek to understand the association between the new particle formation from cloud electrifications and to understand what is the impact of the particle size distribution on the formation of shallow clouds. For this purpose, in addition to SMPS, a cloud radar (MIRA35C) and an electric field sensor will be used. With the whole set of data and analysis, it is expected to contribute with answers to the questions still open and to promote progress of scientific studies in cloud-aerosol interaction. (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)

UNFER, GABRIELA R.; MACHADO, LUIZ A. T.; ALBRECHT, RACHEL I.; CECCHINI, MICAEL A.; HARDER, HARTWIG; MAGINA, FLAVIO C.; POEHLKER, MIRA L.; POESCHL, ULRICH; VILA-GUERAU DE ARELLANO, JORDI; WILLIAMS, EARLE R.; et al. Decoding the Relationship Between Cloud Electrification, Downdrafts, and Surface Ozone in the Amazon Basin. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, v. 130, n. 4, p. 15-pg., 2025-02-28. (21/03547-7, 22/01780-9, 22/07974-0)

CURTIUS, JOACHIM; HEINRITZI, MARTIN; BECK, LISA J.; POEHLKER, MIRA L.; TRIPATHI, NIDHI; KRUMM, BIANCA E.; HOLZBECK, PHILIP; NUSSBAUMER, CLARA M.; PARDO, LIANET HERNANDEZ; KLIMACH, THOMAS; et al. Isoprene nitrates drive new particle formation in Amazon's upper troposphere. Nature, v. 636, n. 8041, p. 23-pg., 2024-12-05. (22/01780-9, 21/03547-7, 22/13257-9)

UNFER, GABRIELA; MACHADO, LUIZ; ARTAXO, PAULO; FRANCO, MARCO; KREMPER, LESLIE; POEHLKER, MIRA; POESCHL, ULRICH; POEHLKER, CHRISTOPHER. Amazonian aerosol size distributions in a lognormal phase space: characteristics and trajectories. Atmospheric Chemistry and Physics, v. 24, n. 6, p. 14-pg., 2024-04-02. (21/03547-7, 22/07974-0, 22/01780-9)