Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-14805-2019 |
Biomass burning and urban emission impacts in the Andes Cordillera region based on in situ measurements from the Chacaltaya observatory, Bolivia (5240 m a.s.l.) | |
Chauvigne, Aurelien1,12; Aliaga, Diego2; Sellegri, Karine1; Montoux, Nadege1; Krejci, Radovan3,4; Mocnik, Grisa5; Moreno, Isabel2; Mueler, Thomas6; Pandolfi, Marco7; Velarde, Fernando2; Weinhold, Kay6; Ginot, Patrick8; Wiedensohler, Alfred6; Andrade, Marcos2,9; Laj, Paolo8,10,11 | |
2019-12-10 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:23页码:14805-14824 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Bolivia; Sweden; Slovenia; Germany; Spain; USA; Italy; Finland |
英文摘要 | This study documents and analyses a 4-year continuous record of aerosol optical properties measured at the Global Atmosphere Watch (GAW) station of Chacaltaya (CHC; 5240 m a.s.l.), in Bolivia. Records of particle light scattering and particle light absorption coefficients are used to investigate how the high Andean Cordillera is affected by both long-range transport and by the fast-growing agglomeration of La Paz-El Alto, located approximately 20 km away and 1.5 km below the sampling site. The extended multiyear record allows us to study the properties of aerosol particles for different air mass types, during wet and dry seasons, also covering periods when the site was affected by biomass burning in the Bolivian lowlands and the Amazon Basin. The absorption, scattering, and extinction coefficients (median annual values of 0.74, 12.14, and 12.96 Mm(-1) respectively) show a clear seasonal variation with low values during the wet season (0.57, 7.94, and 8.68 Mm(-1) respectively) and higher values during the dry season (0.80, 11.23, and 14.51 Mm(-1) respectively). The record is driven by variability at both seasonal and diurnal scales. At a diurnal scale, all records of intensive and extensive aerosol properties show a pronounced variation (daytime maximum, night-time minimum), as a result of the dynamic and convective effects. The particle light absorption, scattering, and extinction coefficients are on average 1.94, 1.49, and 1.55 times higher respectively in the turbulent thermally driven conditions than the more stable conditions, due to more efficient transport from the boundary layer. Retrieved intensive optical properties are significantly different from one season to the other, reflecting the changing aerosol emission sources of aerosol at a larger scale. Using the wavelength dependence of aerosol particle optical properties, we discriminated between contributions from natural (mainly mineral dust) and anthropogenic (mainly biomass burning and urban transport or industries) emissions according to seasons and local circulation. The main sources influencing measurements at CHC are from the urban area of La Paz-El Alto in the Altiplano and from regional biomass burning in the Amazon Basin. Results show a 28 % to 80 % increase in the extinction coefficients during the biomass burning season with respect to the dry season, which is observed in both tropospheric dynamic conditions. From this analysis, long-term observations at CHC provide the first direct evidence of the impact of biomass burning emissions of the Amazon Basin and urban emissions from the La Paz area on atmospheric optical properties at a remote site all the way to the free troposphere. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000502279800001 |
WOS关键词 | AEROSOL OPTICAL-PROPERTIES ; HIGH-ALTITUDE STATION ; BLACK CARBON ; ABSORPTION-COEFFICIENT ; LIGHT-ABSORPTION ; FREE TROPOSPHERE ; SAHARAN DUST ; AMAZON BASIN ; AETHALOMETER ; TRANSPORT |
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/224111 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Auvergne, CNRS, UMR6016, Lab Meteorol Phys,OPGC, Clermont Ferrand, France; 2.Univ Mayor San Andres, Lab Fis Atmosfera, La Paz, Bolivia; 3.Stockholm Univ, Dept Environm Sci & Analyt Chem, S-10691 Stockholm, Sweden; 4.Stockholm Univ, Bolin Ctr Climate Res, S-10691 Stockholm, Sweden; 5.Jozef Stefan Inst, Condensed Matter Phys Dept, Ljubljana, Slovenia; 6.Leibniz Inst Tropospher Res, Permoserstr 15, D-04318 Leipzig, Germany; 7.Inst Environm Assessment & Water Res, C Jordi Girona 18-26, Barcelona 08034, Spain; 8.Univ Grenoble Alpes, CNRS, IRD, Grenoble INP,IGE, F-38000 Grenoble, France; 9.Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA; 10.Natl Res Council Italy, Inst Atmospher Sci & Climate, CNR, ISAC, Bologna, Italy; 11.Univ Helsinki, Atmospher Sci Div, Helsinki, Finland; 12.Univ Lille, Lab Opt Atmospher, CNRS, UMR8518, Lille, France |
推荐引用方式 GB/T 7714 | Chauvigne, Aurelien,Aliaga, Diego,Sellegri, Karine,et al. Biomass burning and urban emission impacts in the Andes Cordillera region based on in situ measurements from the Chacaltaya observatory, Bolivia (5240 m a.s.l.)[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(23):14805-14824. |
APA | Chauvigne, Aurelien.,Aliaga, Diego.,Sellegri, Karine.,Montoux, Nadege.,Krejci, Radovan.,...&Laj, Paolo.(2019).Biomass burning and urban emission impacts in the Andes Cordillera region based on in situ measurements from the Chacaltaya observatory, Bolivia (5240 m a.s.l.).ATMOSPHERIC CHEMISTRY AND PHYSICS,19(23),14805-14824. |
MLA | Chauvigne, Aurelien,et al."Biomass burning and urban emission impacts in the Andes Cordillera region based on in situ measurements from the Chacaltaya observatory, Bolivia (5240 m a.s.l.)".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.23(2019):14805-14824. |
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