Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD031808 |
CO Emissions Inferred From Surface CO Observations Over China in December 2013 and 2017 | |
Feng, Shuzhuang1,2; Jiang, Fei1,2; Wu, Zheng3; Wang, Hengmao1,2; Ju, Weimin1,2; Wang, Haikun4 | |
2020-04-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | China has implemented active clean air policies in recent years, and the spatiotemporal patterns of major pollutant emissions have changed substantially. In this study, we construct a regional air pollution data assimilation system based on the WRF/CMAQ model and ensemble Kalman filter algorithm to quantitatively optimize gridded CO emissions using hourly surface CO measurements over China. The Multi-resolution Emission Inventory of China CO emission inventories in December 2012 and 2016 are treated as prior emissions, and the CO emissions in December 2013 and 2017 are optimized using the CO observations of December of 2013 and 2017, respectively. The results show that in both periods, assimilation of CO observations significantly improves the CO simulations and emission estimates. Assimilation increases the CO emissions in most areas of mainland China, especially in northern China, and the spatial patterns of the increases in the two periods are similar. Overall, the posterior CO emissions in December 2017 are 17% lower than those in December 2013. Large emission decreases are mainly found in most key urban areas and developed regions, and emission increases are mainly located in their surrounding areas and certain central and western regions, which might reflect the emission migration from developed regions or urban areas to developing regions or surrounding areas. These changes are not found in the prior emissions but are basically consistent with the emission control strategies and industrial transformation and upgrade phenomena in recent years, indicating that our CO assimilation system could successfully capture the temporal and spatial variations. |
英文关键词 | EnKF data assimilation CO emission inversion WRF CMAQ model emission changes |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000526643500024 |
WOS关键词 | ENSEMBLE KALMAN FILTER ; DATA ASSIMILATION SYSTEM ; JING-JIN-JI ; GUANGDONG PROVINCE ; CARBON-MONOXIDE ; AIR-POLLUTION ; ANTHROPOGENIC EMISSIONS ; OZONE FORMATION ; HIGH-RESOLUTION ; NORTHERN CHINA |
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/280183 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing, Peoples R China; 2.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing, Peoples R China; 3.Chongqing Inst Meteorol Sci, Chongqing, Peoples R China; 4.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing, Peoples R China |
推荐引用方式 GB/T 7714 | Feng, Shuzhuang,Jiang, Fei,Wu, Zheng,et al. CO Emissions Inferred From Surface CO Observations Over China in December 2013 and 2017[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(7). |
APA | Feng, Shuzhuang,Jiang, Fei,Wu, Zheng,Wang, Hengmao,Ju, Weimin,&Wang, Haikun.(2020).CO Emissions Inferred From Surface CO Observations Over China in December 2013 and 2017.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(7). |
MLA | Feng, Shuzhuang,et al."CO Emissions Inferred From Surface CO Observations Over China in December 2013 and 2017".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.7(2020). |
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