Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029437 |
Impacts of Anthropogenic Aerosols on Fog in North China Plain | |
Jia, Xingcan1,2,3; Quan, Jiannong1; Zheng, Ziyan4; Liu, Xiange5,6; Liu, Quan5,6; He, Hui5,6; Liu, Yangang2 | |
2019-01-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:1页码:252-265 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Fog poses a severe environmental problem in the North China Plain, China, which has been witnessing increases in anthropogenic emission since the early 1980s. This work first uses the WRF/Chem model coupled with the local anthropogenic emissions to simulate and evaluate a severe fog event occurring in North China Plain. Comparison of the simulations against observations shows that WRF/Chem well reproduces the general features of temporal evolution of PM2.5 mass concentration, fog spatial distribution, visibility, and vertical profiles of temperature, water vapor content, and relative humidity in the planetary boundary layer throughout the whole period of the fog event. Sensitivity studies are then performed with five different levels of anthropogenic emission as model inputs to systematically examine the comprehensive impacts of aerosols on fog microphysical, macrophysical, radiative, and dynamical properties. The results show that as aerosol concentration increases, fog droplet number concentration and liquid water content all increase nonlinearly; but effective radius decreases. Macrophysical properties (fog fraction, fog duration, fog height, and liquid water path) also increase nonlinearly with increasing aerosol concentration, with rates of changes smaller than microphysical properties. Further analysis reveals distinct aerosol effects on thermodynamic and dynamical conditions during different stages of fog evolution: increasing aerosols invigorate fog formation and development by enhancing longwave-induced instability, fog droplet condensation accompanying latent heat release, and thus turbulence, but delay fog dissipation by reducing surface solar radiation, surface sensible, and latent heat fluxes, and thus suppressing turbulence during the dissipation stage. |
英文关键词 | aerosols fog aerosol-fog interactions anthropogenic emission WRF Chem simulation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456689100016 |
WOS关键词 | SECONDARY ORGANIC AEROSOL ; CLOUD DROPLET ; NUMBER CONCENTRATIONS ; BOUNDARY-LAYER ; AIR-POLLUTION ; RADIATION FOG ; MODEL ; PARAMETERIZATION ; MICROPHYSICS ; HAZE |
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/33578 |
专题 | 气候变化 |
作者单位 | 1.Chinese Meteorol Adm, Inst Urban Meteorol, Beijing, Peoples R China; 2.Brookhaven Natl Lab, Upton, NY 11973 USA; 3.Nanjing Univ Informat Sci & Technol, Key Lab Aerosol Cloud Precipitat China Meteorol A, Nanjing, Jiangsu, Peoples R China; 4.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China; 5.Beijing Weather Modificat Off, Beijing, Peoples R China; 6.Beijing Key Lab Cloud Precipitat & Atmospher Wate, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Jia, Xingcan,Quan, Jiannong,Zheng, Ziyan,et al. Impacts of Anthropogenic Aerosols on Fog in North China Plain[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(1):252-265. |
APA | Jia, Xingcan.,Quan, Jiannong.,Zheng, Ziyan.,Liu, Xiange.,Liu, Quan.,...&Liu, Yangang.(2019).Impacts of Anthropogenic Aerosols on Fog in North China Plain.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(1),252-265. |
MLA | Jia, Xingcan,et al."Impacts of Anthropogenic Aerosols on Fog in North China Plain".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.1(2019):252-265. |
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