| A New Index Developed for Fast Diagnosis of Meteorological Roles in Ground-Level Ozone Variations |
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| 作者姓名： | Weihua CHEN Weiwen WANG Shiguo JIA Jingying MAO Fenghua YAN Lianming ZHENG Yongkang WU Xingteng ZHANG Yutong DONG Lingbin KONG Buqing ZHONG Ming CHANG Min SHAO Xuemei WANG |
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| 作者单位： | Guangdong-Hongkong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality;School of Atmospheric Sciences;Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems |
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| 基金项目： | supported by the National Key Research and Development Plan(Grant No.2017YFC0210105);the second Tibetan Plateau Scientific Expedition and Research Program(Grant No.2019QZKK0604);the National Natural Science Foundation of China(Grant Nos.41905086,41905107,42077205,and 41425020);the Special Fund Project for Science and Technology Innovation Strategy of Guangdong Province(Grant No.2019B121205004);the China Postdoctoral Science Foundation(Grant No.2020M683174);the Air Quip(High-resolution Air Quality Information for Policy)Project funded by the Research Council of Norway;the Collaborative Innovation Center of Climate Change;Jiangsu Province;China;the high-performance computing platform of Jinan University。 |
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| 摘 要： | China experienced worsening ground-level ozone(O2) pollution from 2013 to 2019. In this study, meteorological parameters, including surface temperature(T2), solar radiation(SW), and wind speed(WS), were classified into two aspects,(1) Photochemical Reaction Condition(PRC = T2× SW) and(2) Physical Dispersion Capacity(PDC = WS). In this way, a Meteorology Synthetic Index(MSI = PRC/PDC) was developed for the quantification of meteorology-induced ground-level O2pollution. The positive linear relationship between the 90 th percentile of MDA8(maximum daily 8-h average) O2concentration and MSI determined that the contribution of meteorological changes to ground-level O-3 varied on a latitudinal gradient, decreasing from ~40% in southern China to 10%–20% in northern China. Favorable photochemical reaction conditions were more important for ground-level O2pollution. This study proposes a universally applicable index for fast diagnosis of meteorological roles in ground-level O2variability, which enables the assessment of the observed effects of precursor emissions reductions that can be used for designing future control policies.
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| 关 键 词： | ground-level ozone meteorology synthetic index photochemical reaction condition physical dispersion capacity |
A New Index Developed for Fast Diagnosis of Meteorological Roles in Ground-Level Ozone Variations |
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| Weihua CHEN,Weiwen WANG,Shiguo JIA,Jingying MAO,Fenghua YAN,Lianming ZHENG,Yongkang WU,Xingteng ZHANG,Yutong DONG,Lingbin KONG,Buqing ZHONG,Ming CHANG,Min SHAO,Xuemei WANG.A New Index Developed for Fast Diagnosis of Meteorological Roles in Ground-Level Ozone Variations[J].Advances in Atmospheric Sciences,2022,39(3):403-414. |
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| Authors: | Weihua CHEN Weiwen WANG Shiguo JIA Jingying MAO Fenghua YAN Lianming ZHENG Yongkang WU Xingteng ZHANG Yutong DONG Lingbin KONG Buqing ZHONG Ming CHANG Min SHAO Xuemei WANG |
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| Abstract: | China experienced worsening ground-level ozone (O3) pollution from 2013 to 2019. In this study, meteorological parameters, including surface temperature (T2), solar radiation (SW), and wind speed (WS), were classified into two aspects, (1) Photochemical Reaction Condition (PRC = T2 × SW) and (2) Physical Dispersion Capacity (PDC = WS). In this way, a Meteorology Synthetic Index (MSI = PRC/PDC) was developed for the quantification of meteorology-induced ground-level O3 pollution. The positive linear relationship between the 90th percentile of MDA8 (maximum daily 8-h average) O3 concentration and MSI determined that the contribution of meteorological changes to ground-level O-3 varied on a latitudinal gradient, decreasing from ~40% in southern China to 10%–20% in northern China. Favorable photochemical reaction conditions were more important for ground-level O3 pollution. This study proposes a universally applicable index for fast diagnosis of meteorological roles in ground-level O3 variability, which enables the assessment of the observed effects of precursor emissions reductions that can be used for designing future control policies. |
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| Keywords: | ground-level ozone meteorology synthetic index photochemical reaction condition physical dispersion capacity |
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