四川盆地臭氧污染时空变化及平流层入侵影响研究进展  

Research Progress on the Spatiotemporal Variation of Ozone Pollution and Influence of Stratospheric Intrusion in Sichuan Basin

作　　者：赵天良[1] 张郁青 宁贵财 舒卓智 鲁震 孙晓芸 吴林 ZHAO Tianliang;ZHANG Yuqing;NING Guicai;SHU Zhuozhi;LU Zhen;SUN Xiaoyun;WU Lin(Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration,Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Nanjing 210044,China;Chengdu Fluid Dynamics Innovation Center,Chengdu 610031,China;Anhui Province Key Laboratory of Atmospheric Science and Satellite Remote Sensing,Anhui Institute of Meteorological Sciences,Hefei 230031,China)

机构地区：[1]南京信息工程大学气象灾害预报预警与评估协同创新中心/中国气象局气溶胶-云-降水重点开放实验室,南京210044 [2]成都流体动力创新中心,成都610031 [3]大气科学与卫星遥感安徽省重点实验室/安徽省气象科学研究所,合肥230031

出　　处：《高原山地气象研究》2024年第4期11-20,共10页Plateau and Mountain Meteorology Research

基　　金：国家重点研发计划(2022YFC3701204);国家自然科学基金项目(42275196,42405195);安徽省自然科学基金项目(2408085QD124)。

摘　　要：紧邻青藏高原东部的四川盆地是我国大气污染关键区之一。在高原和深盆地大地形的热动力强迫作用下,四川盆地呈现出不同于其他平原地区的独特大气污染特征。对流层臭氧(O_(3))作为环境大气的主要污染物之一,严重危害人体健康和自然环境,其主要来源为对流层O_(3)光化学反应和平流层O_(3)入侵。目前,针对四川盆地近地面O_(3)污染的研究主要集中于人为排放和气象条件变化对O_(3)光化学生成的影响,忽略了平流层O_(3)入侵的贡献,平流层入侵对盆地O_(3)污染变化的影响亟待深入探究。因此,本文综述了近年来的相关研究成果,主要涉及:(1)四川盆地近地面O_(3)污染的时空变化特征及其来源;(2)青藏高原-四川盆地大地形对四川盆地O_(3)污染的影响,尤其是地形热力和动力强迫的调制作用;(3)在青藏高原-四川盆地独特的大地形强迫作用下,平流层入侵对四川盆地近地面大气环境变化的影响及平流层O_(3)跨层输送的多尺度大气环流耦合驱动机制。这些研究加深了对四川盆地O_(3)污染的时空变化特征、平流层O_(3)入侵的影响及其与深盆地地形之间的协同作用机理的全面科学认知,并为制定科学有效的大气污染防控策略提供了理论支持。The Sichuan Basin(SCB),adjacent to the east of the Tibetan Plateau(TP),is one of the key regions of air pollution in China.With the thermal and dynamic forcing of the large-scale TP topography,the SCB exhibits unique air pollution characteristics.As a major air pollutant in the environmental atmosphere,tropospheric ozone(O_(3))poses a serious threat to human health and natural environ-ment from the tropospheric photochemical reactions and stratospheric intrusion(SI).Previous studies have mainly focused on the impacts of anthropogenic emissions and meteorological conditions on the photochemical O_(3) formation,but scarcely on the influence of SI on near-surface O_(3) pollution.Therefore,this paper reviews a series of related studies including:(1)The spatiotemporal variations of near-surface O_(3) pollution in the SCB and its sources.(2)The influence of the large-scale TP-SCB topography on O_(3) pollution changes over the SCB,es-pecially the modulation of thermal and dynamic forcing of the large-scale topography.(3)The influence of SI on the atmospheric environ-mental changes over the SCB and the multi-scale atmospheric circulation coupling driving mechanism of stratospheric O_(3) cross-layer transport under the unique plateau-basin topographic forcing.These studies enhance the comprehensive scientific understanding of the spa-tiotemporal variations in O_(3) pollution over the SCB,the impacts of SI on SCB’s near-surface atmosphere,and their interaction mechan-isms with the deep basin terrain,which can be applied in effective O_(3) pollution control strategies.

关 键 词：臭氧污染 四川盆地 青藏高原 平流层入侵 

分 类 号：P421.33[天文地球—大气科学及气象学]