Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A
The GoAmazon 2014/5 field campaign took place in Manaus, Brazil, and allowed the investigation of the interaction between background-level biogenic air masses and anthropogenic plumes. We present in this work a box model built to simulate the impact of urban chemistry on biogenic secondary organic a...
| Autor principal: | Mouchel-Vallon, Camille |
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| Outros Autores: | Lee-Taylor, Julia M., Hodzic, Alma, Artaxo, Paulo, Aumont, Bernard, Camredon, Marie, Gurarie, David, Ji?enez, José Luis, Lenschow, Donald H., Martin, Scot T., Nascimento, Janaina, Orlando, John J., Palm, Brett B., Shilling, John E., Shrivastava, Manish K., Madronich, Sasha |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Atmospheric Chemistry and Physics
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/23277 |
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oai:repositorio:1-23277 |
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oai:repositorio:1-23277 Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A Mouchel-Vallon, Camille Lee-Taylor, Julia M. Hodzic, Alma Artaxo, Paulo Aumont, Bernard Camredon, Marie Gurarie, David Ji?enez, José Luis Lenschow, Donald H. Martin, Scot T. Nascimento, Janaina Orlando, John J. Palm, Brett B. Shilling, John E. Shrivastava, Manish K. Madronich, Sasha Aerosol Formation Air Mass Atmospheric Chemistry Atmospheric Modeling Concentration (composition) Emission Inventory Monoterpene Oxidation Parameterization Urban Area Wet Season Amazonas [Brazil] Brazil Manaus Gekkonidae en The GoAmazon 2014/5 field campaign took place in Manaus, Brazil, and allowed the investigation of the interaction between background-level biogenic air masses and anthropogenic plumes. We present in this work a box model built to simulate the impact of urban chemistry on biogenic secondary organic aerosol (SOA) formation and composition. An organic chemistry mechanism is generated with the Generator for Explicit Chemistry and Kinetics of Organics in the Atmosphere (GECKO-A) to simulate the explicit oxidation of biogenic and anthropogenic compounds. A parameterization is also included to account for the reactive uptake of isoprene oxidation products on aqueous particles. The biogenic emissions estimated from existing emission inventories had to be reduced to match measurements. The model is able to reproduce ozone and NOx for clean and polluted situations. The explicit model is able to reproduce background case SOA mass concentrations but does not capture the enhancement observed in the urban plume. The oxidation of biogenic compounds is the major contributor to SOA mass. A volatility basis set (VBS) parameterization applied to the same cases obtains better results than GECKO-A for predicting SOA mass in the box model. The explicit mechanism may be missing SOA-formation processes related to the oxidation of monoterpenes that could be implicitly accounted for in the VBS parameterization. © 2020 BMJ Publishing Group. All rights reserved. 2020-07-03T21:50:49Z 2020-07-03T21:50:49Z 2020 Artigo https://repositorio.inpa.gov.br/handle/1/23277 10.5194/acp-20-5995-2020_rfseq1 en Volume 20, Número 10, Pags. 5995-6014 Restrito Atmospheric Chemistry and Physics |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Aerosol Formation Air Mass Atmospheric Chemistry Atmospheric Modeling Concentration (composition) Emission Inventory Monoterpene Oxidation Parameterization Urban Area Wet Season Amazonas [Brazil] Brazil Manaus Gekkonidae en |
| spellingShingle |
Aerosol Formation Air Mass Atmospheric Chemistry Atmospheric Modeling Concentration (composition) Emission Inventory Monoterpene Oxidation Parameterization Urban Area Wet Season Amazonas [Brazil] Brazil Manaus Gekkonidae en Mouchel-Vallon, Camille Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A |
| topic_facet |
Aerosol Formation Air Mass Atmospheric Chemistry Atmospheric Modeling Concentration (composition) Emission Inventory Monoterpene Oxidation Parameterization Urban Area Wet Season Amazonas [Brazil] Brazil Manaus Gekkonidae en |
| description |
The GoAmazon 2014/5 field campaign took place in Manaus, Brazil, and allowed the investigation of the interaction between background-level biogenic air masses and anthropogenic plumes. We present in this work a box model built to simulate the impact of urban chemistry on biogenic secondary organic aerosol (SOA) formation and composition. An organic chemistry mechanism is generated with the Generator for Explicit Chemistry and Kinetics of Organics in the Atmosphere (GECKO-A) to simulate the explicit oxidation of biogenic and anthropogenic compounds. A parameterization is also included to account for the reactive uptake of isoprene oxidation products on aqueous particles. The biogenic emissions estimated from existing emission inventories had to be reduced to match measurements. The model is able to reproduce ozone and NOx for clean and polluted situations. The explicit model is able to reproduce background case SOA mass concentrations but does not capture the enhancement observed in the urban plume. The oxidation of biogenic compounds is the major contributor to SOA mass. A volatility basis set (VBS) parameterization applied to the same cases obtains better results than GECKO-A for predicting SOA mass in the box model. The explicit mechanism may be missing SOA-formation processes related to the oxidation of monoterpenes that could be implicitly accounted for in the VBS parameterization. © 2020 BMJ Publishing Group. All rights reserved. |
| format |
Artigo |
| author |
Mouchel-Vallon, Camille |
| author2 |
Lee-Taylor, Julia M. Hodzic, Alma Artaxo, Paulo Aumont, Bernard Camredon, Marie Gurarie, David Ji?enez, José Luis Lenschow, Donald H. Martin, Scot T. Nascimento, Janaina Orlando, John J. Palm, Brett B. Shilling, John E. Shrivastava, Manish K. Madronich, Sasha |
| author2Str |
Lee-Taylor, Julia M. Hodzic, Alma Artaxo, Paulo Aumont, Bernard Camredon, Marie Gurarie, David Ji?enez, José Luis Lenschow, Donald H. Martin, Scot T. Nascimento, Janaina Orlando, John J. Palm, Brett B. Shilling, John E. Shrivastava, Manish K. Madronich, Sasha |
| title |
Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A |
| title_short |
Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A |
| title_full |
Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A |
| title_fullStr |
Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A |
| title_full_unstemmed |
Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A |
| title_sort |
exploration of oxidative chemistry and secondary organic aerosol formation in the amazon during the wet season: explicit modeling of the manaus urban plume with gecko-a |
| publisher |
Atmospheric Chemistry and Physics |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/23277 |
| _version_ |
1787145138601984000 |
| score |
11.755432 |