Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-3439-2020 |
Characterization of the radiative impact of aerosols on CO2 and energy fluxes in the Amazon deforestation arch using artificial neural networks | |
Braghiere, Renato Kerches1,2,3,8; Yamasoe, Marcia Akemi3; Evora do Rosario, Nilton Manuel4; da Rocha, Humberto Ribeiro3; Nogueira, Jose de Souza5; de Araujo, Alessandro Carioca6,7 | |
2020-03-24 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:6页码:3439-3458 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Brazil |
英文摘要 | In vegetation canopies with complex architectures, diffuse solar radiation can enhance carbon assimilation through photosynthesis because isotropic light is able to reach deeper layers of the canopy. Although this effect has been studied in the past decade, the mechanisms and impacts of this enhancement over South America remain poorly understood. Over the Amazon deforestation arch large amounts of aerosols are released into the atmosphere due to biomass burning, which provides an ideal scenario for further investigation of this phenomenon in the presence of canopies with complex architecture. In this paper, the relation of aerosol optical depth and surface fluxes of mass and energy are evaluated over three study sites with artificial neural networks and radiative transfer modeling. Results indicate a significant effect of the aerosol on the flux of carbon dioxide between the vegetation and the atmosphere, as well as on energy exchange, including that surface fluxes are sensitive to second-order radiative impacts of aerosols on temperature, humidity, and friction velocity. CO2 exchanges increased in the presence of aerosol in up to 55 % in sites with complex canopy architecture. A decrease of approximately 12 % was observed for a site with shorter vegetation. Energy fluxes were negatively impacted by aerosols over all study sites. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000521948300001 |
WOS关键词 | BIOMASS BURNING AEROSOLS ; DIFFUSE-RADIATION ; ATMOSPHERIC PARTICLES ; FOREST PRODUCTIVITY ; CLOUDS ; MODEL ; SATELLITE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/278703 |
专题 | 地球科学 |
作者单位 | 1.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA; 2.Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90095 USA; 3.Univ Sao Paulo, Dept Ciencias Atmosfer, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo, Brazil; 4.Univ Fed Sao Paulo, Lab Clima & Poluicao Ar LabClip, Inst Ciencias Ambientais Quim & Farmaceut, Diadema, Brazil; 5.Univ Fed Mato Grosso, Inst Fis, Mato Grosso, Brazil; 6.Embrapa Amazonia Oriental, Travessa Dr Eneas Pinheiro S-N,Caixa Postal 48, BR-66095100 Belem, Para, Brazil; 7.INPA, Large Scale Biosphere Atmosphere Expt Amazonia LB, Ave Andre Araujo 2936, BR-69060001 Manaus, Amazonas, Brazil; 8.NASA, Jet Prop Lab, M-S 233-305F,4800 Oak Grove Dr, Pasadena, CA 91109 USA |
推荐引用方式 GB/T 7714 | Braghiere, Renato Kerches,Yamasoe, Marcia Akemi,Evora do Rosario, Nilton Manuel,et al. Characterization of the radiative impact of aerosols on CO2 and energy fluxes in the Amazon deforestation arch using artificial neural networks[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(6):3439-3458. |
APA | Braghiere, Renato Kerches,Yamasoe, Marcia Akemi,Evora do Rosario, Nilton Manuel,da Rocha, Humberto Ribeiro,Nogueira, Jose de Souza,&de Araujo, Alessandro Carioca.(2020).Characterization of the radiative impact of aerosols on CO2 and energy fluxes in the Amazon deforestation arch using artificial neural networks.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(6),3439-3458. |
MLA | Braghiere, Renato Kerches,et al."Characterization of the radiative impact of aerosols on CO2 and energy fluxes in the Amazon deforestation arch using artificial neural networks".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.6(2020):3439-3458. |
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