Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026547 |
Analysis of aerosol composition data for western United States wildfires between 2005 and 2015: Dust emissions, chloride depletion, and most enhanced aerosol constituents | |
Schlosser, Joseph S.1; Braun, Rachel A.1; Bradley, Trevor1; Dadashazar, Hossein1; MacDonald, Alexander B.1; Aldhaif, Abdulmonam A.1; Aghdam, Mojtaba Azadi1; Mardi, Ali Hossein1; Xian, Peng2; Sorooshian, Armin1,3 | |
2017-08-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:16 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | This study examines major wildfires in the western United States between 2005 and 2015 to determine which species exhibit the highest percent change in mass concentration on day of peak fire influence relative to preceding nonfire days. Forty-one fires were examined using the Environmental Protection Agency (EPA) Interagency Monitoring of Protected Visual Environments (IMPROVE) data set. Organic carbon (OC) and elemental carbon (EC) constituents exhibited the highest percent change increase. The sharpest enhancements were for the volatile (OC1) and semivolatile (OC2) OC fractions, suggestive of secondary organic aerosol formation during plume transport. Of the noncarbonaceous constituents, Cl, P, K, NO3-, and Zn levels exhibited the highest percent change. Dust was significantly enhanced in wildfire plumes, based on significant enhancements in fine soil components (i.e., Si, Ca, Al, Fe, and Ti) and PMcoarse (i.e., PM10-PM2.5). A case study emphasized how transport of wildfire plumes significantly impacted downwind states, with higher levels of fine soil and PMcoarse at the downwind state (Arizona) as compared to the source of the fires (California). A global model (Navy Aerosol Analysis and Prediction System, NAAPS) did not capture the dust influence over California or Arizona during this case event because it is not designed to resolve dust dynamics in fires, which motivates improved treatment of such processes. Significant chloride depletion was observed on the peak EC day for almost a half of the fires examined. Size-resolved measurements during two specific fires at a coastal California site revealed significant chloride reductions for particle aerodynamic diameters between 1 and 10 mu m. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416382800032 |
WOS关键词 | BIOMASS BURNING EMISSIONS ; FINE-PARTICLE EMISSIONS ; CHEMICAL-COMPOSITION ; SOUTHERN AFRICA ; AIRBORNE MEASUREMENTS ; ORGANIC AEROSOL ; TRACE-ELEMENTS ; FORECAST MODEL ; SAVANNA FIRES ; AIR-QUALITY |
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/33791 |
专题 | 气候变化 |
作者单位 | 1.Univ Arizona, Dept Chem & Environm Engn, Tucson, AZ 85721 USA; 2.US Naval Res Lab, Monterey, CA USA; 3.Univ Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ 85721 USA |
推荐引用方式 GB/T 7714 | Schlosser, Joseph S.,Braun, Rachel A.,Bradley, Trevor,et al. Analysis of aerosol composition data for western United States wildfires between 2005 and 2015: Dust emissions, chloride depletion, and most enhanced aerosol constituents[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(16). |
APA | Schlosser, Joseph S..,Braun, Rachel A..,Bradley, Trevor.,Dadashazar, Hossein.,MacDonald, Alexander B..,...&Sorooshian, Armin.(2017).Analysis of aerosol composition data for western United States wildfires between 2005 and 2015: Dust emissions, chloride depletion, and most enhanced aerosol constituents.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(16). |
MLA | Schlosser, Joseph S.,et al."Analysis of aerosol composition data for western United States wildfires between 2005 and 2015: Dust emissions, chloride depletion, and most enhanced aerosol constituents".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.16(2017). |
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