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Mechanisms of secondary organic aerosol formation in Amazonia studied at the ground, ATTO tower and HALO plane

Grant number: 18/26375-4
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): February 01, 2019
Effective date (End): January 31, 2021
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geophysics
Principal researcher:Paulo Eduardo Artaxo Netto
Grantee:Milena Ponczek
Home Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , 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

Abstract

This postdoctoral project focuses on investigating the biogenic volatile organic compounds (BVOCs) - Secondary Organic Aerosol (SOA) interaction mechanisms, at the ground under the canopy, at the top of the ATTO tower (325 meters) and up to 12 Km altitude, with measurements at the German HALO airplane. The instrumentation will consist of real time aerosol chemical speciation monitor (ACSM), and VOC measurements with Proton Transfer reaction Mass Spectrometry - PTRMS. Further instrumentation shall provide aerosol size distribution, aerosol optical properties, CO/CO2, O3, SO2, elemental composition, OC-EC analysis, etc. Measurements will be done at the ATTO tower, in river boats in western Amazonia and at the HALO high altitude plane. We hope to study in detail the relationship between VOCs and SOA, contributing to the understanding of particle formation and studies of the climatic effects of SOA trough interactions with clouds, precipitation and radiation balance over Central Amazonia.

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