Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL093199 |
Application of turbulent diffusionterm of aerosols in mesoscale model | |
Wenxing Jia; Xiaoye Zhang; Hongsheng Zhang; Yan Ren | |
2021-05-24 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | The presence of unfavorable meteorological conditions triggers pollution, and then further weakens turbulence, especially in the stable boundary layer (SBL), which is a frequent situation in heavy pollution episodes in China. The inapplicability of the classical Monin-Obukhov similarity theory (MOST) and the uncertainty of the planetary boundary layer height can lead to large deviation of turbulent diffusion in the SBL in numerical simulations. However, in current mesoscale models, no term has been used to accurately describe the turbulent diffusion of aerosols. Therefore, we use the Mixing-Length theory to obtain the turbulent diffusion term of aerosols based on high-resolution observational data, and, for the first time, embed this term into a mesoscale model, which makes the turbulent diffusion process of aerosols more truly depicted. Results from a two-way coupled atmospheric-chemistry mesoscale model demonstrate that the turbulent diffusion term of aerosols can improve the problem of overestimated PM2.5 concentration in Eastern China. |
领域 | 气候变化 |
URL | 查看原文 |
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/328738 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Wenxing Jia,Xiaoye Zhang,Hongsheng Zhang,et al. Application of turbulent diffusionterm of aerosols in mesoscale model[J]. Geophysical Research Letters,2021. |
APA | Wenxing Jia,Xiaoye Zhang,Hongsheng Zhang,&Yan Ren.(2021).Application of turbulent diffusionterm of aerosols in mesoscale model.Geophysical Research Letters. |
MLA | Wenxing Jia,et al."Application of turbulent diffusionterm of aerosols in mesoscale model".Geophysical Research Letters (2021). |
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