| Texto completo | |
| Autor(es): |
Zhu, Liye
[1, 2, 3]
;
Martin, Maria Val
[4, 5]
;
Gatti, Luciana V.
[6, 7]
;
Kahn, Ralph
[8]
;
Hecobian, Arsineh
[1]
;
Fischer, Emily V.
[1]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 - USA
[2] Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou 510275, Guangdong - Peoples R China
[3] Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou 510275, Guangdong - Peoples R China
[4] Univ Sheffield, Chem & Biol Engn Dept, Sheffield, S Yorkshire - England
[5] Univ Sheffield, Leverhulme Ctr Climate Change Mitigat, Anim Plant Sci Dept, Sheffield, S Yorkshire - England
[6] CNEN, IPEN, Sao Paulo - Brazil
[7] Natl Inst Spaces Res, INPE, CCST, LaGEE Greenhouse Gas Lab, Sao Jose Dos Campos, SP - Brazil
[8] NASA, Climate & Radiat Lab, Goddard Space Flight Ctr, Greenbelt, MD - USA
Número total de Afiliações: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Geoscientific Model Development; v. 11, n. 10, p. 4103-4116, OCT 11 2018. |
| Citações Web of Science: | 4 |
| Resumo | |
Biomass burning is a significant source of trace gases and aerosols to the atmosphere, and the evolution of these species depends acutely on where they are injected into the atmosphere. GEOS-Chem is a chemical transport model driven by assimilated meteorological data that is used to probe a variety of scientific questions related to atmospheric composition, including the role of biomass burning. This paper presents the development and implementation of a new global biomass burning emissions injection scheme in the GEOS-Chem model. The new injection scheme is based on monthly gridded Multi-angle Imaging SpectroRadiometer (MISR) global plume-height stereoscopic observations in 2008. To provide specific examples of the impact of the model updates, we compare the output from simulations with and without the new MISR-based injection height scheme to several sets of observations from regions with active fires. Our comparisons with Arctic Research on the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) aircraft observations show that the updated injection height scheme can improve the ability of the model to simulate the vertical distribution of peroxyacetyl nitrate (PAN) and carbon monoxide (CO) over North American boreal regions in summer. We also compare a simulation for October 2010 and 2011 to vertical profiles of CO over the Amazon Basin. When coupled with larger emission factors for CO, a simulation that includes the new injection scheme also better matches selected observations in this region. Finally, the improved injection height improves the simulation of monthly mean surface CO over California during July 2008, a period with large fires. (AU) | |
| Processo FAPESP: | 08/58120-3 - Carbon tracker and water availability controls of land use and climate changes |
| Beneficiário: | Humberto Ribeiro da Rocha |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático |