African volcanic emissions influencing atmospheric aerosols over the Amazon rain forest (2018)
- Authors:
- Saturno, Jorge
- Ditas, Florian
- Vries, Marloes Penning de
- Holanda, Bruna Amorim
- Pöhlker, Mira L
- Carbone, Samara
- Walter, David
- Bobrowski, Nicole
- Brito, Joel
- Chi, Xuguang
- Gutmann, Alexandra
- Angelis, Isabella Hrabe de
- Machado, Luiz A T
- Moran-Zuloaga, Daniel
- Rüdiger, Julian
- Schneider, Johannes
- Schulz, Christiane
- Wang, Qiaoqiao
- Wendisch, Manfred
- Artaxo Netto, Paulo Eduardo
- Wagner, Thomas
- Pöschl, Ulrich
- Andreae, Meinrat O
- Pöhlker, Christopher
- Autor USP: NETTO, PAULO EDUARDO ARTAXO - IF
- Unidade: IF
- DOI: 10.5194/acp-2017-1152
- Subjects: FÍSICA ATMOSFÉRICA; POLUIÇÃO ATMOSFÉRICA; AEROSSOL
- Agências de fomento:
- Language: Inglês
- Abstract: The long-range transport (LRT) of trace gases and aerosol particles plays an important role for the composition of the Amazonian rain forest atmosphere. Sulfate aerosols originate to a substantial extent from LRT sources and play an important role in the Amazonian atmosphere as strongly light-scattering particles and effective cloud condensation nuclei. The transatlantic transport of volcanic sulfur emissions from Africa has been considered as a source of particulate sulfate in the Amazon; however, direct observations have been lacking so far. This study provides observational evidence for the influence of emissions from the Nyamuragira–Nyiragongo volcanoes in Africa on Amazonian aerosol properties and atmospheric composition during September 2014. Comprehensive ground-based and airborne aerosol measurements together with satellite observations are used to investigate the volcanic event. Under the volcanic influence, hourly mean sulfate mass concentrations in the submicron size range reached up to 3.6µgm−3 at the Amazon Tall Tower Observatory, the highest value ever reported in the Amazon region. The substantial sulfate injection increased the aerosol hygroscopicity with κ values up to 0.36, thus altering aerosol–cloud interactions over the rain forest. Airborne measurements and satellite data indicate that the transatlantic transport of volcanogenic aerosols occurred in two major volcanic plumes with a sulfate-enhanced layer between 4 and 5km of altitude. This study demonstrates how African aerosol sources, such as volcanic sulfur emissions, can substantially affect the aerosol cycling and atmospheric processes in Amazonia.
- Imprenta:
- Source:
- Título: Atmospheric Chemistry and Physics
- ISSN: 1680-7316
- Volume/Número/Paginação/Ano: v. 18, n. 14, p. 10391–10405, 2018
- Este periódico é de acesso aberto
- Este artigo NÃO é de acesso aberto
-
ABNT
SATURNO, Jorge et al. African volcanic emissions influencing atmospheric aerosols over the Amazon rain forest. Atmospheric Chemistry and Physics, v. 18, n. 14, p. 10391–10405, 2018Tradução . . Disponível em: https://doi.org/10.5194/acp-2017-1152. Acesso em: 20 jan. 2026. -
APA
Saturno, J., Ditas, F., Vries, M. P. de, Holanda, B. A., Pöhlker, M. L., Carbone, S., et al. (2018). African volcanic emissions influencing atmospheric aerosols over the Amazon rain forest. Atmospheric Chemistry and Physics, 18( 14), 10391–10405. doi:10.5194/acp-2017-1152 -
NLM
Saturno J, Ditas F, Vries MP de, Holanda BA, Pöhlker ML, Carbone S, Walter D, Bobrowski N, Brito J, Chi X, Gutmann A, Angelis IH de, Machado LAT, Moran-Zuloaga D, Rüdiger J, Schneider J, Schulz C, Wang Q, Wendisch M, Artaxo Netto PE, Wagner T, Pöschl U, Andreae MO, Pöhlker C. African volcanic emissions influencing atmospheric aerosols over the Amazon rain forest [Internet]. Atmospheric Chemistry and Physics. 2018 ; 18( 14): 10391–10405.[citado 2026 jan. 20 ] Available from: https://doi.org/10.5194/acp-2017-1152 -
Vancouver
Saturno J, Ditas F, Vries MP de, Holanda BA, Pöhlker ML, Carbone S, Walter D, Bobrowski N, Brito J, Chi X, Gutmann A, Angelis IH de, Machado LAT, Moran-Zuloaga D, Rüdiger J, Schneider J, Schulz C, Wang Q, Wendisch M, Artaxo Netto PE, Wagner T, Pöschl U, Andreae MO, Pöhlker C. African volcanic emissions influencing atmospheric aerosols over the Amazon rain forest [Internet]. Atmospheric Chemistry and Physics. 2018 ; 18( 14): 10391–10405.[citado 2026 jan. 20 ] Available from: https://doi.org/10.5194/acp-2017-1152 - Aerosol number fluxes over the Amazon rain forest during the wet season
- Reduced productivity and carbon drawdown of tropical forests from ground-level ozone exposure
- As três emergências que nossa sociedade enfrenta: saúde, biodiversidade e mudanças climáticas
- Long-term study on coarse mode aerosols in the Amazon rain forest with the frequent intrusion of Saharan dust plumes
- Development of non-linear models predicting daily fine particle concentrations using aerosol optical depth retrievals and ground-based measurements at a municipality in the Brazilian Amazon region
- Isoprene photo-oxidation products quantify the effect of pollution on hydroxyl radicals over Amazonia
- Mudanças climáticas podem inviabilizar soja e gado no Brasil [Entrevista]
- Mass spectral characterization of submicron biogenic organic particles in the Amazon Basin
- Direct and semi-direct aerosol effects: a modeled study for biomass burning aerosol radiative forcing in the Amazon region
- Results From LBA and a vision for future Amazonian research
Informações sobre o DOI: 10.5194/acp-2017-1152 (Fonte: oaDOI API)
Download do texto completo
| Tipo | Nome | Link | |
|---|---|---|---|
 |
acp-2017-1152.pdf | Direct link |
How to cite
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas
