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DOI | 10.1088/1748-9326/ab6f11 |
Climate variability or anthropogenic emissions: which caused Beijing Haze? | |
Pei, Lin1; Yan, Zhongwei2; Chen, Deliang3; Miao, Shiguang1 | |
2020-03-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2020 |
卷号 | 15期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Sweden |
英文摘要 | Beijing Haze has been phenomenal, especially for winter, and widely considered a result of the increasing anthropogenic emissions of atmospheric pollutants in the region. Since 2013, the pollutant emissions have been reduced with the help of a series of emission-control actions. However, severe haze events still occurred frequently in Beijing in recent winters, e.g., those of 2015 and 2016, implying that other factors such as meteorological conditions and interannual climate variability have also played an important role in forming the haze. Based on homogenized station observations, atmospheric circulation reanalysis and anthropogenic emissions data for the period 1980-2017, this paper attempts to quantify the relative importance of anthropogenic emissions and climatic conditions to the frequency and intensity of Beijing Haze in winter. It is found that the frequency (number) of hazy days exhibits large interannual variability and little trend, and its variations were mainly controlled by climate variability, with a correlation coefficient of 0.77. On the other hand, the intensity of haze displays strong interannual variability and a significant increasing trend during 1980-2012 and a notable decreasing trend during 2012-2017. The multiple linear regression model suggests that about half of the total variance of the haze intensity is explained by climate variability (mainly for interannual variations), and another half by the changing emissions (mainly for the trends). |
英文关键词 | Beijing Haze frequency intensity anthropogenic emissions climate variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000537405400002 |
WOS关键词 | METEOROLOGICAL CONDITIONS ; PERSISTENT HAZE ; AIR-POLLUTION ; NORTH CHINA ; IMPACT ; WEATHER ; TRENDS ; CONDUCIVE ; EVENTS ; HEBEI |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/279204 |
专题 | 气候变化 |
作者单位 | 1.China Meteorol Adm, Inst Urban Meteorol, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Inst Atmospher Phys, RCE TEA, Beijing, Peoples R China; 3.Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, Gothenburg, Sweden |
推荐引用方式 GB/T 7714 | Pei, Lin,Yan, Zhongwei,Chen, Deliang,et al. Climate variability or anthropogenic emissions: which caused Beijing Haze?[J]. ENVIRONMENTAL RESEARCH LETTERS,2020,15(3). |
APA | Pei, Lin,Yan, Zhongwei,Chen, Deliang,&Miao, Shiguang.(2020).Climate variability or anthropogenic emissions: which caused Beijing Haze?.ENVIRONMENTAL RESEARCH LETTERS,15(3). |
MLA | Pei, Lin,et al."Climate variability or anthropogenic emissions: which caused Beijing Haze?".ENVIRONMENTAL RESEARCH LETTERS 15.3(2020). |
条目包含的文件 | 条目无相关文件。 |
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