Articles | Volume 22, issue 24
https://doi.org/10.5194/acp-22-16017-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-22-16017-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Three dominant synoptic atmospheric circulation patterns influencing severe winter haze in eastern China
Shiyue Zhang
Key Laboratory of Meteorological Disaster, Ministry of Education,
Collaborative Innovation Center on Forecast and Evaluation of Meteorological
Disasters (CIC-FEMD), Joint International Research Laboratory of Climate and
Environment Change (ILCEC), Nanjing University of Information Science and
Technology, Nanjing 210044, China
Gang Zeng
CORRESPONDING AUTHOR
Key Laboratory of Meteorological Disaster, Ministry of Education,
Collaborative Innovation Center on Forecast and Evaluation of Meteorological
Disasters (CIC-FEMD), Joint International Research Laboratory of Climate and
Environment Change (ILCEC), Nanjing University of Information Science and
Technology, Nanjing 210044, China
Tijian Wang
School of Atmospheric Sciences, Nanjing University, Nanjing 210023, China
Xiaoye Yang
Key Laboratory of Meteorological Disaster, Ministry of Education,
Collaborative Innovation Center on Forecast and Evaluation of Meteorological
Disasters (CIC-FEMD), Joint International Research Laboratory of Climate and
Environment Change (ILCEC), Nanjing University of Information Science and
Technology, Nanjing 210044, China
Vedaste Iyakaremye
Rwanda Meteorology Agency, Nyarugenge KN 96 St, Kigali, Rwanda
Related authors
Shiyue Zhang, Gang Zeng, Xiaoye Yang, Ruixi Wu, and Zhicong Yin
Atmos. Chem. Phys., 21, 15185–15197, https://doi.org/10.5194/acp-21-15185-2021, https://doi.org/10.5194/acp-21-15185-2021, 2021
Short summary
Short summary
This study classified the winter cold surge in eastern China into blocking cold surge and wave-train cold surge and investigated the difference of haze dispersion ability between the two types. The results show that the haze dispersion of blocking cold surge is weaker than that of wave-train cold surge. In the past 4 decades, the frequency of wave-train (blocking) cold surge shows a downward (upward) trend, which means that the ability of cold surge to disperse haze is declining.
Hua Lu, Min Xie, Bingliang Zhuang, Danyang Ma, Bojun Liu, Yangzhihao Zhan, Tijian Wang, Shu Li, Mengmeng Li, and Kuanguang Zhu
Atmos. Chem. Phys., 24, 8963–8982, https://doi.org/10.5194/acp-24-8963-2024, https://doi.org/10.5194/acp-24-8963-2024, 2024
Short summary
Short summary
To identify cloud, aerosol, and planetary boundary layer (PBL) interactions from an air quality perspective, we summarized two pollution patterns characterized by denser liquid cloud and by obvious cloud radiation interaction (CRI). Numerical simulation experiments showed CRI could cause a 50 % reduction in aerosol radiation interaction (ARI) under a low-trough system. The results emphasized the nonnegligible role of CRI and its inhibition of ARI under wet and cloudy pollution synoptic patterns.
Nanhong Xie, Tijian Wang, Xiaodong Xie, Xu Yue, Filippo Giorgi, Qian Zhang, Danyang Ma, Rong Song, Beiyao Xu, Shu Li, Bingliang Zhuang, Mengmeng Li, Min Xie, Natalya Andreeva Kilifarska, Georgi Gadzhev, and Reneta Dimitrova
Geosci. Model Dev., 17, 3259–3277, https://doi.org/10.5194/gmd-17-3259-2024, https://doi.org/10.5194/gmd-17-3259-2024, 2024
Short summary
Short summary
For the first time, we coupled a regional climate chemistry model, RegCM-Chem, with a dynamic vegetation model, YIBs, to create a regional climate–chemistry–ecology model, RegCM-Chem–YIBs. We applied it to simulate climatic, chemical, and ecological parameters in East Asia and fully validated it on a variety of observational data. Results show that RegCM-Chem–YIBs model is a valuable tool for studying the terrestrial carbon cycle, atmospheric chemistry, and climate change on a regional scale.
Hua Lu, Min Xie, Wei Zhao, Bojun Liu, Tijian Wang, and Bingliang Zhuang
Atmos. Meas. Tech., 17, 167–179, https://doi.org/10.5194/amt-17-167-2024, https://doi.org/10.5194/amt-17-167-2024, 2024
Short summary
Short summary
Observations of vertical wind in regions with complex terrain are essential, but they are always sparse and have poor representation. Data verification and quality control are conducted on the wind profile radar and Aeolus wind products in this study, trying to compensate for the limitations of wind field observations. The results shed light on the comprehensive applications of multi-source wind profile data in complicated terrain regions with sparse ground-based wind observations.
Yangzhihao Zhan, Min Xie, Wei Zhao, Tijian Wang, Da Gao, Pulong Chen, Jun Tian, Kuanguang Zhu, Shu Li, Bingliang Zhuang, Mengmeng Li, Yi Luo, and Runqi Zhao
Atmos. Chem. Phys., 23, 9837–9852, https://doi.org/10.5194/acp-23-9837-2023, https://doi.org/10.5194/acp-23-9837-2023, 2023
Short summary
Short summary
Although the main source contribution of pollution is secondary inorganic aerosols in Nanjing, health risks mainly come from industry sources and vehicle emissions. Therefore, the development of megacities should pay more attention to the health burden of vehicle emissions, coal combustion, and industrial processes. This study provides new insight into assessing the relationship between source apportionment and health risks and can provide valuable insight into air pollution strategies.
Danyang Ma, Tijian Wang, Hao Wu, Yawei Qu, Jian Liu, Jane Liu, Shu Li, Bingliang Zhuang, Mengmeng Li, and Min Xie
Atmos. Chem. Phys., 23, 6525–6544, https://doi.org/10.5194/acp-23-6525-2023, https://doi.org/10.5194/acp-23-6525-2023, 2023
Short summary
Short summary
Increasing surface ozone (O3) concentrations have long been a significant environmental issue in China, despite the Clean Air Action Plan launched in 2013. Most previous research ignores the contributions of CO2 variations. Our study comprehensively analyzed O3 variation across China from various perspectives and highlighted the importance of considering CO2 variations when designing long-term O3 control policies, especially in high-vegetation-coverage areas.
Chenchao Zhan, Min Xie, Hua Lu, Bojun Liu, Zheng Wu, Tijian Wang, Bingliang Zhuang, Mengmeng Li, and Shu Li
Atmos. Chem. Phys., 23, 771–788, https://doi.org/10.5194/acp-23-771-2023, https://doi.org/10.5194/acp-23-771-2023, 2023
Short summary
Short summary
With the development of urbanization, urban land use and anthropogenic
emissions increase, affecting urban air quality and, in turn, the health risks associated with air pollutants. In this study, we systematically evaluate the impacts of urbanization on air quality and the corresponding health risks in a highly urbanized city with severe air pollution and complex terrain. This work focuses on the health risks caused by urbanization and can provide valuable insight for air pollution strategies.
Shiyue Zhang, Gang Zeng, Xiaoye Yang, Ruixi Wu, and Zhicong Yin
Atmos. Chem. Phys., 21, 15185–15197, https://doi.org/10.5194/acp-21-15185-2021, https://doi.org/10.5194/acp-21-15185-2021, 2021
Short summary
Short summary
This study classified the winter cold surge in eastern China into blocking cold surge and wave-train cold surge and investigated the difference of haze dispersion ability between the two types. The results show that the haze dispersion of blocking cold surge is weaker than that of wave-train cold surge. In the past 4 decades, the frequency of wave-train (blocking) cold surge shows a downward (upward) trend, which means that the ability of cold surge to disperse haze is declining.
Mengmeng Li, Zihan Zhang, Quan Yao, Tijian Wang, Min Xie, Shu Li, Bingliang Zhuang, and Yong Han
Atmos. Chem. Phys., 21, 15135–15152, https://doi.org/10.5194/acp-21-15135-2021, https://doi.org/10.5194/acp-21-15135-2021, 2021
Short summary
Short summary
We establish the nonlinear responses between nitrate and NOx in China. Reduction of NOx results in linearly lower nitrate in summer–autumn whereas an increase of winter nitrate until an inflexion point at 40–50 % reduction due to the excess oxidants. NH3 and VOCs are effective in controlling nitrate pollution, whereas decreasing the SO2 and NOx emissions may have counterintuitive effects on nitrate aerosols. This paper helps understand the nonlinear aerosol and photochemistry feedback.
Da Gao, Min Xie, Jane Liu, Tijian Wang, Chaoqun Ma, Haokun Bai, Xing Chen, Mengmeng Li, Bingliang Zhuang, and Shu Li
Atmos. Chem. Phys., 21, 5847–5864, https://doi.org/10.5194/acp-21-5847-2021, https://doi.org/10.5194/acp-21-5847-2021, 2021
Short summary
Short summary
O3 has been increasing in recent years over the Yangtze River Delta region of China and is closely associated with dominant weather systems. Still, the study on the impact of changes in synoptic weather patterns (SWPs) on O3 variation is quite limited. This work aims to reveal the unique features of changes in each SWP under O3 variation and quantifies the effects of meteorological conditions on O3 variation. Our findings could be helpful in strategy planning for O3 pollution control.
Yawei Qu, Apostolos Voulgarakis, Tijian Wang, Matthew Kasoar, Chris Wells, Cheng Yuan, Sunil Varma, and Laura Mansfield
Atmos. Chem. Phys., 21, 5705–5718, https://doi.org/10.5194/acp-21-5705-2021, https://doi.org/10.5194/acp-21-5705-2021, 2021
Short summary
Short summary
The meteorological effect of aerosols on tropospheric ozone is investigated using global atmospheric modelling. We found that aerosol-induced meteorological effects act to reduce modelled ozone concentrations over China, which brings the simulation closer to observed levels. Our work sheds light on understudied processes affecting the levels of tropospheric gaseous pollutants and provides a basis for evaluating such processes using a combination of observations and model sensitivity experiments.
Chenchao Zhan, Min Xie, Chongwu Huang, Jane Liu, Tijian Wang, Meng Xu, Chaoqun Ma, Jianwei Yu, Yumeng Jiao, Mengmeng Li, Shu Li, Bingliang Zhuang, Ming Zhao, and Dongyang Nie
Atmos. Chem. Phys., 20, 13781–13799, https://doi.org/10.5194/acp-20-13781-2020, https://doi.org/10.5194/acp-20-13781-2020, 2020
Short summary
Short summary
The Yangtze River Delta (YRD) region has been suffering from severe ozone (O3) pollution in recent years. Synoptic systems, like typhoons, can have a significant effect on O3 episodes. However, research on landfall typhoons affecting O3 in the YRD is limited. This work aims to reveal the main processes of landfall typhoons affecting surface O3 and estimate health impacts of O3 during the study period in the YRD, which can be useful for taking reasonable pollution control measures in this area.
Han Han, Yue Wu, Jane Liu, Tianliang Zhao, Bingliang Zhuang, Honglei Wang, Yichen Li, Huimin Chen, Ye Zhu, Hongnian Liu, Qin'geng Wang, Shu Li, Tijian Wang, Min Xie, and Mengmeng Li
Atmos. Chem. Phys., 20, 13591–13610, https://doi.org/10.5194/acp-20-13591-2020, https://doi.org/10.5194/acp-20-13591-2020, 2020
Short summary
Short summary
Combining simulations from a global chemical transport model and a trajectory model, we find that black carbon aerosols from South Asia and East Asia contribute 77 % of the surface black carbon in the Tibetan Plateau. The Asian monsoon largely modulates inter-annual transport of black carbon from non-local regions to the Tibetan Plateau surface in most seasons, while inter-annual fire activities in South Asia influence black carbon concentration over the Tibetan Plateau surface mainly in spring.
Meng Gao, Zhiwei Han, Zhining Tao, Jiawei Li, Jeong-Eon Kang, Kan Huang, Xinyi Dong, Bingliang Zhuang, Shu Li, Baozhu Ge, Qizhong Wu, Hyo-Jung Lee, Cheol-Hee Kim, Joshua S. Fu, Tijian Wang, Mian Chin, Meng Li, Jung-Hun Woo, Qiang Zhang, Yafang Cheng, Zifa Wang, and Gregory R. Carmichael
Atmos. Chem. Phys., 20, 1147–1161, https://doi.org/10.5194/acp-20-1147-2020, https://doi.org/10.5194/acp-20-1147-2020, 2020
Short summary
Short summary
Topic 3 of the Model Inter-Comparison Study for Asia (MICS-Asia) Phase III examines how online coupled air quality models perform in simulating high aerosol pollution in the North China Plain region during wintertime haze events and evaluates the importance of aerosol radiative feedbacks. This paper discusses the estimates of aerosol radiative forcing, aerosol feedbacks, and possible causes for the differences among the models.
Han Han, Jane Liu, Lei Shu, Tijian Wang, and Huiling Yuan
Atmos. Chem. Phys., 20, 203–222, https://doi.org/10.5194/acp-20-203-2020, https://doi.org/10.5194/acp-20-203-2020, 2020
Short summary
Short summary
We statistically assessed the impacts of local and synoptic meteorology on daily surface ozone in eastern China in summer during 2013–2018. The results show that the meteorology described by a multiple linear regression model explains 43 % of variations in surface ozone. The most important local meteorological factors vary with location in eastern China. The maximum impact of the predominant synoptic pattern on surface ozone can reach ± 8 µg m-3 or ± 16 % of the daily mean over some regions.
Han Han, Jane Liu, Huiling Yuan, Tijian Wang, Bingliang Zhuang, and Xun Zhang
Atmos. Chem. Phys., 19, 12495–12514, https://doi.org/10.5194/acp-19-12495-2019, https://doi.org/10.5194/acp-19-12495-2019, 2019
Short summary
Short summary
In the East Asian middle and upper troposphere, foreign ozone is 0.8–4.8 times more than its native counterpart in all the seasons. At the East Asian surface, the annual mean concentrations of foreign ozone and native ozone are comparable, being approximately 20 ppbv. The seasonal and interannual variations in foreign ozone over East Asia are closely related to the East Asian monsoon.
Huimin Chen, Bingliang Zhuang, Jane Liu, Tijian Wang, Shu Li, Min Xie, Mengmeng Li, Pulong Chen, and Ming Zhao
Atmos. Chem. Phys., 19, 4153–4175, https://doi.org/10.5194/acp-19-4153-2019, https://doi.org/10.5194/acp-19-4153-2019, 2019
Short summary
Short summary
To better understand the characteristics of air pollutants and their interactions in the highly polluted region of eastern China, continuous measurements of particles and trace gases were made during cold seasons in 2016. We found 48 days with excess of PM2.5, 14 with excess of PM10, and 40 with excess of O3. Results further reveal the formation of secondary aerosols under high-O3 and temperature conditions and suggest a VOC-sensitive regime for photochemical production of O3 in urban Nanjing.
Junting Zhong, Xiaoye Zhang, Yaqiang Wang, Jizhi Wang, Xiaojing Shen, Hongsheng Zhang, Tijian Wang, Zhouqing Xie, Cheng Liu, Hengde Zhang, Tianliang Zhao, Junying Sun, Shaojia Fan, Zhiqiu Gao, Yubin Li, and Linlin Wang
Atmos. Chem. Phys., 19, 3287–3306, https://doi.org/10.5194/acp-19-3287-2019, https://doi.org/10.5194/acp-19-3287-2019, 2019
Short summary
Short summary
In various haze regions in China, including the Guanzhong Plain, the middle and lower reaches of the Yangtze River, the Pearl River Delta, the Sichuan Basin, and the Northeast China Plain, heavy aerosol pollution episodes include inter-/trans-regional transport stages and cumulative stages (CSs). During CSs a two-way feedback mechanism exists between unfavorable meteorological conditions and cumulative aerosol pollution. This two-way feedback is further quantified and its magnitude is compared.
Cheng Yuan, William K. M. Lau, Zhanqing Li, and Maureen Cribb
Atmos. Chem. Phys., 19, 1901–1913, https://doi.org/10.5194/acp-19-1901-2019, https://doi.org/10.5194/acp-19-1901-2019, 2019
Short summary
Short summary
Using MERRA-2 reanalysis daily data from 2001 to 2015, we found that during strong South Asian summer monsoon years, the Asian monsoon anticyclone is more expansive and shifted northward. All the CO, carbonaceous aerosols and dust are found to be more abundant in the Asian Tropopause Aerosol Layer (ATAL). ATAL trends are associated with increasing strength of the AMA, with earlier and enhanced vertical transport of ATAL constituents by enhanced overshooting convection over the transport regions.
Meng Gao, Zhiwei Han, Zirui Liu, Meng Li, Jinyuan Xin, Zhining Tao, Jiawei Li, Jeong-Eon Kang, Kan Huang, Xinyi Dong, Bingliang Zhuang, Shu Li, Baozhu Ge, Qizhong Wu, Yafang Cheng, Yuesi Wang, Hyo-Jung Lee, Cheol-Hee Kim, Joshua S. Fu, Tijian Wang, Mian Chin, Jung-Hun Woo, Qiang Zhang, Zifa Wang, and Gregory R. Carmichael
Atmos. Chem. Phys., 18, 4859–4884, https://doi.org/10.5194/acp-18-4859-2018, https://doi.org/10.5194/acp-18-4859-2018, 2018
Short summary
Short summary
Topic 3 of the Model Inter-Comparison Study for Asia (MICS-Asia) Phase III examines how online coupled air quality models perform in simulating high aerosol pollution in the North China Plain region during wintertime haze events and evaluates the importance of aerosol radiative and microphysical feedbacks. A comprehensive overview of the MICS-ASIA III Topic 3 study design is presented.
Bingliang Zhuang, Tijian Wang, Jane Liu, Huizheng Che, Yong Han, Yu Fu, Shu Li, Min Xie, Mengmeng Li, Pulong Chen, Huimin Chen, Xiu-qun Yang, and Jianning Sun
Atmos. Chem. Phys., 18, 1419–1436, https://doi.org/10.5194/acp-18-1419-2018, https://doi.org/10.5194/acp-18-1419-2018, 2018
Short summary
Short summary
Aerosols have a significant influence on climate changes. Their uncertainties could be substantially reduced if observation data were used. The properties and the DRF of fractionated aerosols in the western Yangtze River Delta are investigated based on measurements. Results reveal the characteristics of the optical properties and DRFs of different types of fractionated aerosols, which can be further used to improve aerosol modelling performance in the eastern regions of China.
Qian Huang, Tijian Wang, Pulong Chen, Xiaoxian Huang, Jialei Zhu, and Bingliang Zhuang
Atmos. Chem. Phys., 17, 13457–13471, https://doi.org/10.5194/acp-17-13457-2017, https://doi.org/10.5194/acp-17-13457-2017, 2017
Short summary
Short summary
This paper investigate the important factor contributing to the improvement of air quality of Nanjing, China, during the 2nd Youth Olympic Games, held in August, 2014. The interesting finding is that meteorological factors are not beneficial to air quality during the YOG. However, emission reduction plays a more important role, which suggest that emission reduction is an effective way to cut air pollution levels for social events.
Lei Shu, Min Xie, Da Gao, Tijian Wang, Dexian Fang, Qian Liu, Anning Huang, and Liwen Peng
Atmos. Chem. Phys., 17, 12871–12891, https://doi.org/10.5194/acp-17-12871-2017, https://doi.org/10.5194/acp-17-12871-2017, 2017
Short summary
Short summary
Based on 1-year in situ monitoring data of 16 cities, this paper can enhance the understanding of the pollution characteristics of particles (PM2.5 and PM10) in the Yangtze River Delta region, China. Based on NCEP reanalysis data, the establishment of the potential links between different levels of particle pollution and predominant synoptic patterns can provide an insightful view on formulating pollution control and mitigation strategies.
Min Xie, Lei Shu, Tijian Wang, Da Gao, Shu Li, Bingliang Zhuang, Anning Huang, Dexian Fang, Yong Han, Mengmeng Li, Pulong Chen, Zhijun Liu, Zheng Wu, and Hua Lu
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2017-500, https://doi.org/10.5194/acp-2017-500, 2017
Preprint withdrawn
Short summary
Short summary
The spatial distribution of aerosol can be affected by monsoon circulation. With the aid of a EAWM index, the stong and the weak EAWM years are identified. The long-term trend of weakening EAWM may potentially increase the aerosol loading in YRD, BTH and SCB but decrease AOD in PRD. By using RegCCMS, we further prove that the intensity of EAWM has great impacts on the spatial distribution of aerosols. The change pattern is mainly decided by the change of aerosols in lower troposphere.
Bingliang Zhuang, Tijian Wang, Jane Liu, Shu Li, Min Xie, Yong Han, Pulong Chen, Qiduo Hu, Xiu-qun Yang, Congbin Fu, and Jialei Zhu
Atmos. Chem. Phys., 17, 1143–1160, https://doi.org/10.5194/acp-17-1143-2017, https://doi.org/10.5194/acp-17-1143-2017, 2017
Short summary
Short summary
The observed near-surface aerosol optical properties in urban Nanjing are analysed from March 2014 to February 2016. Substantial analysis in the key optical properties of the surface aerosol fill the gaps in the study on aerosols in Nanjing, even in the Yangtze River Delta (YRD). Relationships between the aerosol extinction coefficient (single scattering albedo) and atmospheric visibility are also carried out in different seasons to figure out the effect of aerosol on the visibility in Nanjing, YRD.
Lei Shu, Min Xie, Tijian Wang, Da Gao, Pulong Chen, Yong Han, Shu Li, Bingliang Zhuang, and Mengmeng Li
Atmos. Chem. Phys., 16, 15801–15819, https://doi.org/10.5194/acp-16-15801-2016, https://doi.org/10.5194/acp-16-15801-2016, 2016
Short summary
Short summary
Severe high ozone episodes usually have close relations to synoptic systems. A regional continuous ozone pollution episode is detected over the Yangtze River Delta region in August 2013. By means of observational analysis and model simulations, it is found that the western Pacific subtropical high and Typhoon Utor play an important role.
Min Xie, Kuanguang Zhu, Tijian Wang, Wen Feng, Da Gao, Mengmeng Li, Shu Li, Bingliang Zhuang, Yong Han, Pulong Chen, and Jingbiao Liao
Atmos. Chem. Phys., 16, 15011–15031, https://doi.org/10.5194/acp-16-15011-2016, https://doi.org/10.5194/acp-16-15011-2016, 2016
Short summary
Short summary
In this paper, we present our new findings on (1) the spatial and temporal characteristics of AH emissions in South China, (2) how to implement the inhomogeneous AH data into the air quality model WRF/Chem, (3) the impacts of AH fluxes on meteorological fields, and (4) the impacts of meteorology changes on the air quality in different cities in South China. Our results show that the meteorology and air pollution predictions in and around big cities are highly sensitive to AH.
Min Xie, Jingbiao Liao, Tijian Wang, Kuanguang Zhu, Bingliang Zhuang, Yong Han, Mengmeng Li, and Shu Li
Atmos. Chem. Phys., 16, 6071–6089, https://doi.org/10.5194/acp-16-6071-2016, https://doi.org/10.5194/acp-16-6071-2016, 2016
Short summary
Short summary
The spatial and temporal distribution of anthropogenic heat emissions over the YRD region was developed. These gridded AH emissions were incorporated into the modified WRF/Chem model with the seasonal and diurnal variation. The impacts of AH on meteorology and chemical variables were evaluated. The results show that the anthropogenic heat inputs improved the meteorology and air pollution predictions from WRF/Chem in and around large urban areas.
B. L. Zhuang, T. J. Wang, J. Liu, Y. Ma, C. Q. Yin, S. Li, M. Xie, Y. Han, J. L. Zhu, X. Q. Yang, and C. B. Fu
Atmos. Chem. Phys., 15, 13633–13646, https://doi.org/10.5194/acp-15-13633-2015, https://doi.org/10.5194/acp-15-13633-2015, 2015
Short summary
Short summary
The aerosol absorbing coefficient (AAC) assesses the direct radiative forcing of absorbing aerosols. The corrected AAC and absorption Ångström exponent (AAE) in Nanjing, YRD, are characterized using AE-31. Schmid-corrected AAC at 532nm and the AAE at 660/470nm are about 43.23±28.13 Mm-1 and 1.56, both with strong seasonal and diurnal variations. A high AAC is mostly resultant of local and subregional emissions in Nanjing. It peaks at RH values of 40, 65, and 80% at different AAE levels.
J. Zhu, T. Wang, J. Bieser, and V. Matthias
Atmos. Chem. Phys., 15, 8767–8779, https://doi.org/10.5194/acp-15-8767-2015, https://doi.org/10.5194/acp-15-8767-2015, 2015
Short summary
Short summary
This study estimated the contributions to mercury concentration and deposition in easter China from seven categories of emission sources by CMAQ-Hg. Also, this study focuses on diagnostic and process analyses for atmospheric mercury pollution formation and on identification of the dominant atmospheric processes for mercury.
H. Che, X.-Y. Zhang, X. Xia, P. Goloub, B. Holben, H. Zhao, Y. Wang, X.-C. Zhang, H. Wang, L. Blarel, B. Damiri, R. Zhang, X. Deng, Y. Ma, T. Wang, F. Geng, B. Qi, J. Zhu, J. Yu, Q. Chen, and G. Shi
Atmos. Chem. Phys., 15, 7619–7652, https://doi.org/10.5194/acp-15-7619-2015, https://doi.org/10.5194/acp-15-7619-2015, 2015
Short summary
Short summary
This work studied more than 10 years of measurements of aerosol optical depths (AODs) made for 50 sites of CARSNET compiled into a climatology of aerosol optical properties for China. It lets us see a detailed full-scale description of AOD observations over China. The results would benefit us a lot in comprehending the temporal and special distribution aerosol optical property over China. Also the data would be valuable to communities of aerosol satellite retrieval, modelling, etc.
J. Zhu, T. Wang, R. Talbot, H. Mao, X. Yang, C. Fu, J. Sun, B. Zhuang, S. Li, Y. Han, and M. Xie
Atmos. Chem. Phys., 14, 2233–2244, https://doi.org/10.5194/acp-14-2233-2014, https://doi.org/10.5194/acp-14-2233-2014, 2014
L. Xing, T.-M. Fu, J. J. Cao, S. C. Lee, G. H. Wang, K. F. Ho, M.-C. Cheng, C.-F. You, and T. J. Wang
Atmos. Chem. Phys., 13, 4307–4318, https://doi.org/10.5194/acp-13-4307-2013, https://doi.org/10.5194/acp-13-4307-2013, 2013
J. Zhu, T. Wang, R. Talbot, H. Mao, C. B. Hall, X. Yang, C. Fu, B. Zhuang, S. Li, Y. Han, and X. Huang
Atmos. Chem. Phys., 12, 12103–12118, https://doi.org/10.5194/acp-12-12103-2012, https://doi.org/10.5194/acp-12-12103-2012, 2012
Related subject area
Subject: Dynamics | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
Impact of turbulence on aeolian particle entrainment: results from wind-tunnel experiments
Linkages between the atmospheric transmission originating from the North Atlantic Oscillation and persistent winter haze over Beijing
Comparison of the influence of two types of cold surge on haze dispersion in eastern China
Water vapor anomaly over the tropical western Pacific in El Niño winters from radiosonde and satellite observations and ERA5 reanalysis data
Characteristics of the summer atmospheric boundary layer height over the Tibetan Plateau and influential factors
The relationship between anticyclonic anomalies in northeastern Asia and severe haze in the Beijing–Tianjin–Hebei region
Response of early winter haze in the North China Plain to autumn Beaufort sea ice
Understanding severe winter haze events in the North China Plain in 2014: roles of climate anomalies
Understanding the recent trend of haze pollution in eastern China: roles of climate change
Impacts of the mountain–plains solenoid and cold pool dynamics on the diurnal variation of warm-season precipitation over northern China
Jie Zhang, Guang Li, Li Shi, Ning Huang, and Yaping Shao
Atmos. Chem. Phys., 22, 9525–9535, https://doi.org/10.5194/acp-22-9525-2022, https://doi.org/10.5194/acp-22-9525-2022, 2022
Short summary
Short summary
Sand and dust emission are usually investigated by wind-tunnel experiments. However, wind-tunnel flows are usually neutrally stratified without large eddies, which typically develop in the convective atmospheric boundary layer. Here we proposed a novel technique by deploying a piece of randomly fluttering cloth in a wind tunnel to generate the large eddies and found them to enhance the entrainment of sand and dust particles, which explains why large eddies are important to aeolian entrainment.
Muyuan Li, Yao Yao, Ian Simmonds, Dehai Luo, Linhao Zhong, and Lin Pei
Atmos. Chem. Phys., 21, 18573–18588, https://doi.org/10.5194/acp-21-18573-2021, https://doi.org/10.5194/acp-21-18573-2021, 2021
Short summary
Short summary
We found that an atmospheric transmission constituted by a western-type positive North Atlantic Oscillation (NAO+) pattern and a positive East Atlantic/West Russia (EA/WR+) pattern plays an essential role in the persistent haze events in Beijing. As the origin of the atmospheric transmission, the state of the western-type NAO pattern can help to increase the predictability of winter haze days and persistent haze events in Beijing on interannual and daily-to-weekly timescales.
Shiyue Zhang, Gang Zeng, Xiaoye Yang, Ruixi Wu, and Zhicong Yin
Atmos. Chem. Phys., 21, 15185–15197, https://doi.org/10.5194/acp-21-15185-2021, https://doi.org/10.5194/acp-21-15185-2021, 2021
Short summary
Short summary
This study classified the winter cold surge in eastern China into blocking cold surge and wave-train cold surge and investigated the difference of haze dispersion ability between the two types. The results show that the haze dispersion of blocking cold surge is weaker than that of wave-train cold surge. In the past 4 decades, the frequency of wave-train (blocking) cold surge shows a downward (upward) trend, which means that the ability of cold surge to disperse haze is declining.
Minkang Du, Kaiming Huang, Shaodong Zhang, Chunming Huang, Yun Gong, and Fan Yi
Atmos. Chem. Phys., 21, 13553–13569, https://doi.org/10.5194/acp-21-13553-2021, https://doi.org/10.5194/acp-21-13553-2021, 2021
Short summary
Short summary
El Niño has an important influence on climate systems. There are obviously negative water vapor anomalies from radiosonde observations in the tropical western Pacific during El Niño. The tropical Hadley, Walker, and monsoon circulation variations are revealed to play different roles in the observed water vapor anomaly in different types of El Niños. The Walker (monsoon) circulation anomaly made a major contribution in the 2015/16 (2009/10) strong eastern Pacific (central Pacific) El Niño event.
Junhui Che and Ping Zhao
Atmos. Chem. Phys., 21, 5253–5268, https://doi.org/10.5194/acp-21-5253-2021, https://doi.org/10.5194/acp-21-5253-2021, 2021
Short summary
Short summary
The importance of the atmospheric boundary layer (ABL) is recognized, but little is known about the Tibetan Plateau (TP) ABL due to the scarce data. Based on new observations from the Third Tibetan Plateau Atmospheric Scientific Experiment, we reveal a big drop in the ABL height from the west to the east of the TP for the first time, which is more remarkable than in the United States and all of China. This steep inhomogeneity in the TP is due to the difference in local climate and environment.
Wogu Zhong, Zhicong Yin, and Huijun Wang
Atmos. Chem. Phys., 19, 5941–5957, https://doi.org/10.5194/acp-19-5941-2019, https://doi.org/10.5194/acp-19-5941-2019, 2019
Short summary
Short summary
Haze pollution in the Beijing–Tianjin–Hebei region has become increasingly more severe and persistent in recent years.This research focused on severe haze during 2014–2016 and examined the impacts of the anticyclonic anomalies over northeastern Asia. The advance and retreat of anticyclonic anomalies over northeastern Asia (AANA) corresponded with the emergence and dissipation of severe haze, illustrating that AANA could be effective forecast indicators for air quality.
Zhicong Yin, Yuyan Li, and Huijun Wang
Atmos. Chem. Phys., 19, 1439–1453, https://doi.org/10.5194/acp-19-1439-2019, https://doi.org/10.5194/acp-19-1439-2019, 2019
Short summary
Short summary
Recently, haze pollution in the North China has been serious and disastrous. The preceding heavy autumn sea ice intensified the early winter haze pollution over North China. The results provide possibilities for the seasonal to interannual prediction of haze pollution that helps to determine whether extra stringent emission control measures are needed to counteract the effect of climate variability.
Zhicong Yin, Huijun Wang, and Huopo Chen
Atmos. Chem. Phys., 17, 1641–1651, https://doi.org/10.5194/acp-17-1641-2017, https://doi.org/10.5194/acp-17-1641-2017, 2017
Short summary
Short summary
The number of winter haze days over the north-central North China Plain in 2014 was largest in the past 30 years. With the anticyclone circulation over North China taken as an intermediate, the positive phases of the east Atlantic/west Russia, western Pacific, and Eurasian patterns led to a larger number of haze days in 2014. The related external forcing included preceding autumn Arctic sea ice, winter and pre-autumn surface temperature, and pre-autumn sea surface temperature in the Pacific.
Hui-Jun Wang and Huo-Po Chen
Atmos. Chem. Phys., 16, 4205–4211, https://doi.org/10.5194/acp-16-4205-2016, https://doi.org/10.5194/acp-16-4205-2016, 2016
Short summary
Short summary
The variability of the autumn Arctic sea ice extent, local precipitation and surface wind during winter is most influential to the haze pollution change in eastern China. The joint effect of fast increase of total energy consumption, rapid decline of Arctic sea ice extent and reduced precipitation and surface winds intensified the haze pollution in central North China after 2000. There is similar conclusion for haze pollution in eastern South China after 2000.
Xinghua Bao and Fuqing Zhang
Atmos. Chem. Phys., 13, 6965–6982, https://doi.org/10.5194/acp-13-6965-2013, https://doi.org/10.5194/acp-13-6965-2013, 2013
Cited articles
An, X., Sheng, L., Liu, Q., Li, C., Gao, Y., and Li, J.: The combined effect of two westerly jet waveguides on heavy haze in the North China Plain in November and December 2015, Atmos. Chem. Phys., 20, 4667–4680, https://doi.org/10.5194/acp-20-4667-2020, 2020.
Barnston, A. G. and Livezey, R. E.: Classification, seasonality and
persistence of low frequency atmospheric circulation patterns, Mon. Weather
Rev., 115, 1083–1126, 1987.
Cai, W., Xu, X., Cheng, X., Wei, F., Qiu, X., and Zhu, W.: Impact of
“blocking” structure in the troposphere on the wintertime persistent heavy
air pollution in northern China, Sci. Total Environ., 741, 140325,
https://doi.org/10.1016/j.scitotenv.2020.140325, 2020.
Cai, W. J., Li, K., Liao, H., Wang, H. J., and Wu, L. X.: Weather Conditions
Conducive to Beijing Severe Haze More Frequent under Climate Change, Nat.
Clim. Change, 7, 257–262, https://doi.org/10.1038/nclimate3249, 2017.
Chang, W. Y. and Zhan, J. Q.: The association of weather patterns with haze episodes: Recognition by PM2.5 oriented circulation classification applied in Xiamen, Southeastern China, Atmos. Res., 197, 425–436, https://doi.org/10.1016/j.atmosres.2017.07.024, 2017.
CPC: Atmospheric data, CPC [data set], available at: http://www.cpc.ncep.noaa.gov/data/teledoc/telecontents.shtml, last access: 16 May, 2022.
Ding, X., Zhang, Y. Q., He, Q. F., Yu, Q. Q., Shen, R. Q., Zhang, Y. L., Zhang,
Z., Lyu, S. J., Hu, Q. H., Wang, Y. S., Li, L. F., Song, W., and Wang, X. M.: Spatial
and seasonal variations of secondary organic aerosol from terpenoids over
China. J. Geophys. Res.-Atmos, 121, 14661–14678, https://doi.org/10.1002/2016JD025467, 2016.
Ding, Y. H. and Liu, Y. J.: Analysis of long-term variations of fog and
haze in China in recent 50 years and their relations with atmospheric
humidity, Sci. China Ser. D: Earth Sci., 57, 36–46,
https://doi.org/10.1007/s11430-013-4792-1, 2014.
Fan, X. Q. and Sun, Z. B: Analysis on Features of Haze Weather in Xiamen City
during 1953–2008, Trans. Atmos. Sci. 32, 604–609, 2019.
Fang, B. and Lu, M.: Heatwave and blocking in the Northeastern Asia:
Occurrence, variability, and association, J. Geophys. Res.-Atmos., 125, e2019JD031627, https://doi.org/10.1029/2019JD031627, 2020.
Gong, S., Liu, Y., He, J., Zhang, L., Lu, S., and Zhang, X.: Multiscale
analysis of the impacts of meteorology and emissions on PM2.5 and
O3 trends at various regions in China from 2013 to 2020 1: Synoptic
circulation patterns and pollution, Sci. Total Environ., 815,
152770, https://doi.org/10.1016/j.scitotenv.2021.152770,
2022.
Hu, B., Chen, R., Xu, J. X., Yang, G. S., Xu, D. D., Chen, C. Y., and Zhao,
Y . L.: Health effects of ambient ultrafine (nano) particles in haze,
Chinese Sci. Bull., 60, 2808–2823, https://doi.org/10.1360/N972014-01404,
2015 (in Chinese).
Hwang, J., Son, S. W., Martineau, P., and Barriopedro, D.: Impact of winter
blocking on surface air temperature in East Asia: Ural versus Okhotsk
blocking, Clim. Dynam., 59, 2197–2212, https://doi.org/10.1007/s00382-022-06204-5, 2022.
Kalnay, E., Kanamitsu, M., Kistler, R., Collins,W., Deaven, D., Gandin, L.,
Iredell,M., Saha, S., White, G., Woollen, J., Zhu, Y., Leetmaa, A.,
Reynolds, R., Chelliah, M., Ebisuzaki, W., Higgins, W., Janowiak, J., Mo,
K.C., Ropelewski, C., Wang, J., Jenne, R., and Joseph, D.: The NCEP/NCAR 40-year
reanalysis project, B. Am. Meteorol. Soc., 77, 437–471, https://doi.org/10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO;2, 1996.
Leung, D. M., Tai, A. P. K., Mickley, L. J., Moch, J. M., van Donkelaar, A., Shen, L., and Martin, R. V.: Synoptic meteorological modes of variability for fine particulate matter (PM2.5) air quality in major metropolitan regions of China, Atmos. Chem. Phys., 18, 6733–6748, https://doi.org/10.5194/acp-18-6733-2018, 2018.
Li, J., Liao, H., Hu, J., and Li, N.: Severe particulate pollution days in
China during 2013–2018 and the associated typical weather patterns in
Beijing-Tianjin-Hebei and the Yangtze River Delta regions, Environ. Pollut.,
248, 74–81, 2019.
Li, J., Hao, X., Liao, H., Wang, Y., Cai, W., Li, K., Yue, X., Yang, Y., Chen, H.,
Mao, Y., Fu, Y., Chen, L., and Zhu, J.: Winter particulate pollution severity in
North China driven by atmospheric teleconnections, Nat. Geosci., 15,
349–355, https://doi.org/10.1038/s41561-022-00933-2, 2022.
Li, Q., Zhang, R. H., and Wang, Y.: Interannual variation of the winter-time
fog–haze days across central and eastern China and its relation with East
Asian winter monsoon, Int. J. Climatol., 36, 346–354, https://doi.org/10.1002/joc.4350, 2015.
Liao, Z., Xie, J., Fang, X., Wang, Y., Zhang, Y., Xu, X., and Fan, S.:
Modulation of synoptic circulation to dry season PM2.5 pollution over
the Pearl River Delta region: An investigation based on self organizing
maps, Atmos. Environ., 230, 117482, https://doi.org/10.1016/j.atmosenv.2020.117482, 2020.
Liu, N., Zhou, S., Liu, C., and Guo, J.: Synoptic circulation pattern and
boundary layer structure associated with PM2.5 during wintertime haze
pollution episodes in Shanghai, Atmos. Res., 228, 186–195,
https://doi.org/10.1016/j.atmosres.2019.06.001, 2019.
Liu, X., Hui, Y., Yin, Z. Y., Wang, Z., Xie, X., and Fang, J.: Deteriorating
haze situation and the severe haze episode during December 18–25 of 2013 in
Xi'an China, the worst event on record, Theor. Appl. Climatol., 125, 321–335, https://doi.org/10.1007/s00704-015-1509-8, 2015.
Monks, P., Granier, C., Fuzzi, S., Stohl, A., Williams, M., Akimoto, H.,
Amann, M., Baklanov, A., Baltensperger, U., and Bey, I.: Atmospheric composition
change–Global and regional air quality, Atmos. Environ, 43, 5268–5350,
https://doi.org/10.1016/j.atmosenv.2009.08.021, 2009.
NCEP/NCAR: Atmospheric data, NCEP/NCAR [data set], available at: http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html, last access: 16 May, 2022.
Niu, F., Li, Z. Q., Li, C., Lee, K. H., and Wang, M. Y.: Increase of wintertime
fog in China: Potential impacts of weakening of the eastern Asian monsoon
circulation and increasing aerosol loading, J. Geophys. Res., 115, D00K20,
https://doi.org/10.1029/2009JD013484, 2010.
Plumb, R. A.: On the three-dimensional propagation of stationary waves, J.
Atmos. Sci., 42, 217–229,
https://doi.org/10.1175/1520-0469(1985)042<0217:OTTDPO>2.0.CO;2, 1985.
Qian, Y., Gong, D., Fan, J., Leung, L. R., Bennartz, R., Chen, D., and Wang, W.:
Heavy pollution suppresses light rain in China: Observations and modeling,
J. Geophys. Res., 114, D00K02, https://doi.org/10.1029/2008JD011575,
2009.
Rokach, L. and Maimon, O.: Clustering Methods, in: Data Mining and Knowledge Discovery Handbook, edited by: Maimon, O. and Rokach, L., Springer, Boston, MA, https://doi.org/10.1007/0-387-25465-X_15, 2005.
Rousseeuw, P.: Silhouettes: A graphical aid to the interpretation and validation of cluster analysis, J. Comput. Appl. Math., 20, 53–65, https://doi.org/10.1016/0377-0427(87)90125-7, 1987.
Shen, L., Jacob, D. J., Mickley, L. J., Wang, Y., and Zhang, Q.: Insignificant effect of climate change on winter haze pollution in Beijing, Atmos. Chem. Phys., 18, 17489–17496, https://doi.org/10.5194/acp-18-17489-2018, 2018.
Sun, Y., Ma, Z. F., Niu, T.R., Fu, Y., and Hu, J. F.: Characteristics of climate
change with respect to fog days and haze days in China in the past 40 years,
Clim. Environ. Res., 18, 397–406, 2013.
Sun, Y., Chen, C., Zhang, Y., Xu, W., Zhou, L., Cheng, X., Zheng, H., Ji,
D., Li, J., Tang, X., Fu, P., and Wang, Z.: Rapid formation and evolution of an
extreme haze episode in Northern China during winter 2015, Sci. Rep. 6,
27151, https://doi.org/10.1038/srep27151, 2016.
Sun, Y., Niu, T., He, J., Ma, Z., Liu, P., Xiao, D., Hu, J., Yang, J., and Yan,
X.: Classification of circulation patterns during the formation and
dissipation of continuous pollution weather over the Sichuan Basin, China,
Atmos. Environ., 223, 117244, https://doi.org/10.1016/j.atmosenv.2019.117244, 2020.
Tibaldi, S. and Molteni, F.: On the operational predictability of blocking,
Tellus, 42, 343–365, https://doi.org/10.1034/j.1600-0870.1990.t01-2-00003.x, 1990.
Tsaia, F., Tu, J. Y., Hsu, S. C., and Chen, W. N.: Case study of the Asian dust
and pollutant event in spring 2006: Source, transport, and contribution to
Taiwan, Sci. Total Environ, 478, 163–174, https://doi.org/10.1016/j.scitotenv.2014.01.072, 2014.
Wang, H. J., Chen, H. P., and Liu, J. P.: Arctic Sea Ice Decline Intensified
Haze Pollution in Eastern China. Atmos. Oceanic Sci., 8, 1–9, https://doi.org/10.3878/AOSL20140081, 2015.
Wang, K. C., Dickinson, R. E., and Liang, S. L.: Clear sky visibility has
decreased over land globally from 1973 to 2007, Science, 323, 1468–1470,
https://doi.org/10.1126/science.1167549, 2009.
Wang, X. and Zhang, R.: Effects of atmospheric circulations on the interannual variation in PM2.5 concentrations over the Beijing–Tianjin–Hebei region in 2013–2018, Atmos. Chem. Phys., 20, 7667–7682, https://doi.org/10.5194/acp-20-7667-2020, 2020.
Wang, X., Zhang, R., Tan, Y., and Yu, W.: Dominant synoptic patterns associated with the decay process of PM2.5 pollution episodes around Beijing, Atmos. Chem. Phys., 21, 2491–2508, https://doi.org/10.5194/acp-21-2491-2021, 2021.
Wang, Z. S., Liu, X. D., and Xie, X. N.: Effects of Strong East Asian Cold Surges
on Improving the Air Quality over Mainland China, Atmosphere, 7, 38,
https://doi.org/10.3390/atmos7030038, 2016.
Wu, M., Wu, D., Fan, Q., Wang, B. M., Li, H. W., and Fan, S. J.: Observational studies of the meteorological characteristics associated with poor air quality over the Pearl River Delta in China, Atmos. Chem. Phys., 13, 10755–10766, https://doi.org/10.5194/acp-13-10755-2013, 2013.
Wu, P., Ding, Y. H., Liu, Y. J., and Li, X. C.: Influence of the East Asian
winter monsoon and atmospheric humidity on the wintertime haze frequency
over central-eastern China, Acta Meteorol. Sin., 74, 352–366, https://doi.org/10.11676/qxxb2016.029, 2016 (in Chinese).
Wu, P., Ding, Y., and Liu, Y.: Atmospheric circulation and dynamic mechanism
for persistent haze events in the Beijing–Tianjin–Hebei region, Adv.
Atmos. Sci., 34, 429–440, 2017.
Xiao, C., Zhang, Y., Lofgren, B. M., and Nie, Y.: The concurrent
variability of East Asian subtropical and polar-front EAJSs and its
implication for the winter climate anomaly in China, J. Geophys.
Res.-Atmos., 121, 6787–6801, 2016.
Xie, Y. B., Chen, J., and Li, W.: An assessment of PM2.5 related health
risks and impaired values of Beijing residents in a consecutive high-level
exposure during heavy haze days, Environ. Sci., 35, 1–8, 2014.
Xu, J., Yan, F., Xie, Y., Wang, F., Wu, J., and Fu, Q.: Impact of meteorological
conditions on a nine-day particulate matter pollution event observed in
December 2013, Shanghai, China, Particuology, 20, 69–79, https://doi.org/10.1016/j.partic.2014.09.001, 2015.
Yang, Y., Zhou, Y., Li, K., Wang, H., Ren, L., Zeng, L., Li, H., Wang, P.,
Li., B., and Liao, H.: Atmospheric circulation patterns conducive to severe
haze in eastern China have shifted under climate change, Geophys.
Res. Lett., 48, e2021GL095011, https://doi.org/10.1029/2021GL095011, 2021.
Yin, Z. C. and Wang, H. J.: The relationship between the subtropical Western
Pacific SST and haze over North-Central North China Plain, Int. J.
Climatol., 36, 3479–3491, https://doi.org/10.1002/joc.4570,
2016.
Yin, Z. and Wang, H.: Role of atmospheric circulations in haze pollution in December 2016, Atmos. Chem. Phys., 17, 11673–11681, https://doi.org/10.5194/acp-17-11673-2017, 2017.
Yin, Z. C. and Wang, H. J.: Possible Relationship between the Chukchi Sea Ice
in the Winter and the February Haze Pollution in the North China Plain,
J. Climate, 32, 5179–5190, https://doi.org/10.1175/JCLI-D-18-0634.1, 2019.
Yin, Z. C., Wang, H. J., and Yuan, D. M.: Interdecadal increase of haze in
winter over North China and the Huang-huai area and the weakening of the
East Asia winter monsoon, Chin. Sci. Bull., 60, 1395–1400, 2015.
Yin, Z., Wang, H., and Chen, H.: Understanding severe winter haze events in the North China Plain in 2014: roles of climate anomalies, Atmos. Chem. Phys., 17, 1641–1651, https://doi.org/10.5194/acp-17-1641-2017, 2017.
Yin, Z., Zhang, Y., Wang, H., and Li, Y.: Evident PM2.5 drops in the east of China due to the COVID-19 quarantine measures in February, Atmos. Chem. Phys., 21, 1581–1592, https://doi.org/10.5194/acp-21-1581-2021, 2021.
Yun, S., Yoo, C.: The effects of spring and winter blocking on PM10
Concentration in Kore, Atmosphere, 10, 410, https://doi.org/10.3390/atmos10070410, 2019.
Zhang, S., Zeng, G., Yang, X., Wu, R., and Yin, Z.: Comparison of the influence of two types of cold surge on haze dispersion in eastern China, Atmos. Chem. Phys., 21, 15185–15197, https://doi.org/10.5194/acp-21-15185-2021, 2021.
Zhang, S. Y., Zeng, G., Wang, T. J., Yang, X. Y., and Vedaste, I.: Interannual
relationship between displacement and intensity of East Asian jet stream and
haze over eastern China in winter, Sci. Total Environ., 829, 154672,
https://doi.org/10.1016/j.scitotenv.2022.154672, 2022.
Zhong, W., Yin, Z., and Wang, H.: The relationship between anticyclonic anomalies in northeastern Asia and severe haze in the Beijing–Tianjin–Hebei region, Atmos. Chem. Phys., 19, 5941–5957, https://doi.org/10.5194/acp-19-5941-2019, 2019.
Short summary
Severe haze days in eastern China (HDEC) are affected by the atmospheric circulation variations on a synoptic scale, while the dominant atmospheric circulation patterns influencing HDEC and the differences between them are still unclear. This study obtains three dominant circulation types that could lead to severe HDEC and investigates the differences between them. The results provide a basis for establishing applicable haze prediction and management policies.
Severe haze days in eastern China (HDEC) are affected by the atmospheric circulation variations...
Altmetrics
Final-revised paper
Preprint