Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029674 |
More Than Emissions and Chemistry: Fire Size, Dilution, and Background Aerosol Also Greatly Influence Near-Field Biomass Burning Aerosol Aging | |
Hodshire, A. L.1; Bian, Q.1; Ramnarine, E.1; Lonsdale, C. R.2; Alvarado, M. J.2; Kreidenweis, S. M.1; Jathar, S. H.3; Pierce, J. R.1 | |
2019-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:10页码:5589-5611 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Biomass burning emits particles (black carbon and primary organic aerosol) and precursor vapors to the atmosphere that chemically and physically age in the atmosphere. This theoretical study explores the relationships between fire size (determining the initial plume width and concentration), dilution rate, and entrainment of background aerosol on particle coagulation, organic aerosol (OA) evaporation, and secondary organic aerosol (SOA) condensation in smoke plumes. We examine the impacts of these processes on aged smoke OA mass, geometric mean diameter (D-g), peak lognormal modal width (sigma(g)), particle extinction (E), and cloud condensation nuclei (CCN) concentrations. In our simulations, aging OA mass is controlled by competition between OA evaporation and SOA condensation. Large, slowly diluting plumes evaporate little in our base set of simulations, which may allow for net increases in mass, E, CCN , and D-g from SOA condensation. Smaller, quickly diluting fire plumes lead to faster evaporation, which favors decreases in mass, E, CCN, and D-g. However, the SOA fraction of the smoke OA increases more rapidly in smaller fires due to faster primary organic aerosol evaporation leading to more SOA precursors. Net mass changes for smaller fires depend on background OA concentrations; increasing background aerosol concentrations decrease evaporation rates. Although coagulation does not change mass, it can decrease the number of particles in large/slowly diluting plumes, increasing D-g and E, and decreasing sigma(g). While our conclusions are limited by being a theoretical study, we hope they help motivate future smoke-plume analyses to consider the effects of fire size, meteorology, and background OA concentrations. |
英文关键词 | biomass burning aerosol aging aerosol microphysics biomass burning climate impacts aerosol physics aerosol chemistry aerosol aging |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471237200026 |
WOS关键词 | CLOUD CONDENSATION NUCLEI ; RESPIRATORY-TRACT DEPOSITION ; ORGANIC PARTICULATE MATTER ; PHYSICAL-PROPERTIES ; PRESCRIBED FIRE ; SOUTHERN AFRICA ; CHEMICAL CHARACTERISTICS ; OPTICAL-PROPERTIES ; REGIONAL INFLUENCE ; SAVANNA FIRE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/183359 |
专题 | 气候变化 |
作者单位 | 1.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; 2.Atmospher & Environm Res Inc, Lexington, MA USA; 3.Colorado State Univ, Dept Mech Engn, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | Hodshire, A. L.,Bian, Q.,Ramnarine, E.,et al. More Than Emissions and Chemistry: Fire Size, Dilution, and Background Aerosol Also Greatly Influence Near-Field Biomass Burning Aerosol Aging[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(10):5589-5611. |
APA | Hodshire, A. L..,Bian, Q..,Ramnarine, E..,Lonsdale, C. R..,Alvarado, M. J..,...&Pierce, J. R..(2019).More Than Emissions and Chemistry: Fire Size, Dilution, and Background Aerosol Also Greatly Influence Near-Field Biomass Burning Aerosol Aging.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(10),5589-5611. |
MLA | Hodshire, A. L.,et al."More Than Emissions and Chemistry: Fire Size, Dilution, and Background Aerosol Also Greatly Influence Near-Field Biomass Burning Aerosol Aging".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.10(2019):5589-5611. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论