An observation-based perspective of winter haze days in four major polluted regions of China.
An observation-based perspective of winter haze days in four major polluted regions of China.
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DOI：
10.1093/nsr/nwy118
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发表时间：
2019-05
影响因子：
20.6
通讯作者：
Zhang Y
中科院分区：
文献类型：
--
作者：
Mao L;Liu R;Liao W;Wang X;Shao M;Liu SC;Zhang Y
采用基于观测的方法研究了中国四个主要污染地区冬季雾霾日的关键特征。本研究的主要发现有：第一，1973 - 2012年，中国东部大部分省区冬季雾霾日数无明显变化趋势，相反同期颗粒物及其前体（PM）排放量增加了2.5倍。其次，控制冬季雾霾日数年际变化和趋势的不是PM排放，而是气象和气候条件。这些年际变化（从24%到125%不等）造成了巨大的掩蔽效应，必须通过对PM排放的任何控制来克服，才能在统计上检测到其影响。最后，我们发现全球变暖可能对中国东部冬季雾霾日数的变化趋势有显著影响。
An observation-based approach is used to examine key characteristics of winter haze days in four major polluted regions in China. Major findings in this study are: first, there was no significant trend in the number of winter haze days in most provinces and districts in eastern China from 1973 to 2012, contrary to the 2.5-fold increase in the emissions of particulate matter and its precursors (PM emissions) in the same period of time. Second, meteorological and climate conditions rather than PM emissions are in control of the interannual variabilities and trends of winter haze days. These interannual variabilities (ranging from 24 to 125%) pose a substantial masking effect that must be overcome by any control of PM emissions before its impact becomes statistically detectable. Finally, we find that global warming may have contributed significantly to the trend of winter haze days in eastern China.
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影响因子：
2.3
作者：
Wang Hui-Jun;Chen Huo-Po;Liu Jiping
通讯作者：
Liu Jiping
影响因子：
64.8
作者：
Huang, Ru-Jin;Zhang, Yanlin;Prevot, Andre S. H.
通讯作者：
Prevot, Andre S. H.
影响因子：
6.3
作者：
Han, X.;Zhang, M.;Chai, F.
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Chai, F.
影响因子：
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作者：
Ma Z;Hu X;Sayer AM;Levy R;Zhang Q;Xue Y;Tong S;Bi J;Huang L;Liu Y
通讯作者：
Liu Y
影响因子：
11.8
作者：
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通讯作者：
Chen, Bingheng