Linking Meteorology, Turbulence, and Air Chemistry in the Amazon Rain Forest
Autor: | Juliane Rezende Mercer, Otávio C. Acevedo, Jair Max Furtunato Maia, Antonio O. Manzi, David R. Fitzjarrald, Jose D. Fuentes, Paul C. Stoy, Gabriel G. Katul, Celso von Randow, Tobias Gerken, Marcelo Chamecki, Courtney Schumacher, Gilberto Fisch, Jesus Ruiz-Plancarte, Rosa Maria Nascimento dos Santos, Julio Tota, Livia S. Freire, Nelson Luís Dias, Ana Maria Yáñez-Serrano, Amy M. Trowbridge |
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Rok vydání: | 2016 |
Předmět: |
Atmospheric Science
Cloud Condensation Nuclei Cloud Formation 010504 meteorology & atmospheric sciences Meteorology Planetary boundary layer Rain 0208 environmental biotechnology Mesoscale meteorology 02 engineering and technology Atmospheric sciences 01 natural sciences Troposphere Cloud condensation nuclei 0105 earth and related environmental sciences Tree canopy Forestry Chemical Species 020801 environmental engineering Aerosol Boundary layer Atmospheric chemistry Field Campaign Environmental science Air Chemistry Amazon Rainforest |
Zdroj: | Repositório Institucional do INPA Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
ISSN: | 1520-0477 0003-0007 |
Popis: | We describe the salient features of a field study whose goals are to quantify the vertical distribution of plant-emitted hydrocarbons and their contribution to aerosol and cloud condensation nuclei production above a central Amazonian rain forest. Using observing systems deployed on a 50-m meteorological tower, complemented with tethered balloon deployments, the vertical distribution of hydrocarbons and aerosols was determined under different boundary layer thermodynamic states. The rain forest emits sufficient reactive hydrocarbons, such as isoprene and monoterpenes, to provide precursors of secondary organic aerosols and cloud condensation nuclei. Mesoscale convective systems transport ozone from the middle troposphere, enriching the atmospheric boundary layer as well as the forest canopy and surface layer. Through multiple chemical transformations, the ozone-enriched atmospheric surface layer can oxidize rain forest–emitted hydrocarbons. One conclusion derived from the field studies is that the rain forest produces the necessary chemical species and in sufficient amounts to undergo oxidation and generate aerosols that subsequently activate into cloud condensation nuclei. |
Databáze: | OpenAIRE |
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