ENSO对冬春中东部地区近地面臭氧的影响
The Impact of ENSO on Surface Ozone in the Middle and Eastern Regions During Winter and Spring
傅利委 1程叙耕 1唐南军2
作者信息
- 1. 福建师范大学地理科学学院、碳中和未来技术学院
- 2. 福建省气象台
- 折叠
摘要
厄尔尼诺-南方涛动（ENSO）作为全球年际气候变率的关键信号，通过大气遥相关显著调制中国中东部近地面臭氧浓度。本研究发现，在2015?2024年的厄尔尼诺事件期间，赤道沃克环流减弱、西太平洋反气旋异常增强，导致我国东南沿海盛行异常偏南风；该气流输送的海洋水汽使得降水增多、太阳辐射减弱且相对湿度上升等，从而共同抑制臭氧的光化学生成与积累。这一削弱作用呈现明显的季节演变特征：冬季影响集中于华南地区，春季随季风北推逐步扩展至华东和华中地区。研究揭示了ENSO通过引起与臭氧相关的大气物理过程和影响区域性臭氧生成的机制，为我国臭氧浓度的跨季节预测及防控提供了科学依据。
Abstract
The El Ni?o-Southern Oscillation (ENSO), as a key signal of global interannual climate variability, significantly modulates surface ozone concentrations in central and eastern China through atmospheric teleconnections. During the 2015 2024 El Ni?o events, this study observed that a weakened equatorial Walker circulation and an intensified anomalous anticyclone over the western Pacific led to persistent anomalous southerly winds along the southeastern coast of China. These winds transported marine moisture inland, resulting in increased precipitation, reduced solar radiation, and elevated relative humidity, which collectively suppressed the photochemical formation and accumulation of ozone. This ozone inhibiting effect exhibited distinct seasonal progression: its influence was confined to South China in winter, and progressively extended to East and Central China in spring as the monsoon advanced northward. The research elucidates the mechanism by which ENSO influences regional ozone production through ozone related atmospheric physical processes, providing a scientific basis for cross seasonal ozone prediction and pollution control strategies in China.关键词
厄尔尼诺事件/近地面臭氧/光化学生成Key words
El Ni?o event/Surface Ozone/Photochemical generation引用本文复制引用
傅利委,程叙耕,唐南军.ENSO对冬春中东部地区近地面臭氧的影响[EB/OL].(2026-03-27)[2026-03-28].http://www.paper.edu.cn/releasepaper/content/202603-268.学科分类
环境污染、环境污染防治
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