Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL089030 |
Impact of assimilating meteorological observations on source emissions estimate and chemical simulations | |
Zhen Peng; Lili Lei; Zhiquan Liu; Hongnian Liu; Kekuan Chu; Xingxia Kou | |
2020-10-13 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
英文摘要 | The impacts of assimilating meteorological observations on source emissions estimate and chemical simulations are investigated. Using 6‐h Global Forecast System (GFS) analyses or cycling ensemble assimilation of meteorological observations have similar diurnal variations of PM2.5. Compared to experiment without meteorological analyses, using 6‐h GFS analyses provides stronger diurnal variations of SO2 and NO emissions, and cycling ensemble assimilation of meteorological observations further strengthens the diurnal variations. When independently verified against the observed PM2.5, SO2 and NO2 concentrations, simulation forced by posterior source emissions with 6‐h GFS analyses produces smaller biases and errors than simulation forced by posterior source emissions without meteorological analyses. The biases and errors are generally further reduced with cycling ensemble assimilation of meteorological fields. Therefore, the advantages of cycling ensemble assimilation of meteorological observations to provide realistic meteorological fields and construct flow‐dependent uncertainties of meteorological fields for estimating source emissions and chemical simulations have been demonstrated. |
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/299243 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Zhen Peng,Lili Lei,Zhiquan Liu,et al. Impact of assimilating meteorological observations on source emissions estimate and chemical simulations[J]. Geophysical Research Letters,2020. |
APA | Zhen Peng,Lili Lei,Zhiquan Liu,Hongnian Liu,Kekuan Chu,&Xingxia Kou.(2020).Impact of assimilating meteorological observations on source emissions estimate and chemical simulations.Geophysical Research Letters. |
MLA | Zhen Peng,et al."Impact of assimilating meteorological observations on source emissions estimate and chemical simulations".Geophysical Research Letters (2020). |
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