Sudden pollution incidents around Beijing on a crisp October day: Insights from capturing pollution conveyor belts

IF 1.8 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Journal of Atmospheric and Solar-Terrestrial Physics Pub Date : 2025-02-14 DOI:10.1016/j.jastp.2025.106461

Deying Wang , Jizhi Wang , Yuanqin Yang , Wenxing Jia , Junting Zhong , Xiaofei Jiang , Liangke Liu , Yaqiang Wang , Xiaoye Zhang

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Abstract

North China Plain, an area is usually sunny and cloudless in autumn, rare heavy pollution suddenly occurred around Beijing. This is a new focus of public attention and research. Since late October 2023, it has caused sudden haze pollution. This study focuses on capturing the mechanisms behind sudden pollution in clear skies, tracking the establishment and transmission of adverse weather conditions, focusing on targeted key stations affected by adverse weather. Revealing the correlation between implicit multiple types of precursor meteorological signals: atmospheric boundary layer, condensation rate threshold, in the atmosphere. Obtain the coupling point of the interaction and matching between micro-scale disturbances and weather-scale fluctuations, and reveal its driving mechanism behind sudden pollution in clear skies. The novelty of this study lies in targeting regions that have achieved certain success in emission reduction. Provide insights into the "feedback" effects that adverse weather conditions can cause. It particularly provides a further understanding of the interactions between clouds, aerosols in the “pollution conveyor belt” and provides quantitative indicators for early warning. Provide quantitative technical support for developing accurate response measures in air quality research.

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来源期刊

Journal of Atmospheric and Solar-Terrestrial Physics 地学-地球化学与地球物理

CiteScore

4.10

自引率

5.30%

发文量

审稿时长

6 months

期刊介绍： The Journal of Atmospheric and Solar-Terrestrial Physics (JASTP) is an international journal concerned with the inter-disciplinary science of the Earth''s atmospheric and space environment, especially the highly varied and highly variable physical phenomena that occur in this natural laboratory and the processes that couple them. The journal covers the physical processes operating in the troposphere, stratosphere, mesosphere, thermosphere, ionosphere, magnetosphere, the Sun, interplanetary medium, and heliosphere. Phenomena occurring in other "spheres", solar influences on climate, and supporting laboratory measurements are also considered. The journal deals especially with the coupling between the different regions. Solar flares, coronal mass ejections, and other energetic events on the Sun create interesting and important perturbations in the near-Earth space environment. The physics of such "space weather" is central to the Journal of Atmospheric and Solar-Terrestrial Physics and the journal welcomes papers that lead in the direction of a predictive understanding of the coupled system. Regarding the upper atmosphere, the subjects of aeronomy, geomagnetism and geoelectricity, auroral phenomena, radio wave propagation, and plasma instabilities, are examples within the broad field of solar-terrestrial physics which emphasise the energy exchange between the solar wind, the magnetospheric and ionospheric plasmas, and the neutral gas. In the lower atmosphere, topics covered range from mesoscale to global scale dynamics, to atmospheric electricity, lightning and its effects, and to anthropogenic changes.