四川盆地大气气溶胶污染时空变化的地形影响研究进展  

Research Progress on Terrain Effects of Temporal and Spatial Variation of Atmospheric Aerosol Pollution in Sichuan Basin

作　　者：赵天良[1] 舒卓智 郑小波 李跃清[3] 徐祥德[4] 郭晓梅 胡俊[1] 吴明 张磊[4] 曹蔚 杨富燕 廖瑶 程晓龙[3] ZHAO Tianliang;SHU Zhuozhi;ZHENG Xiaobo;LI Yueqing;XU Xiangde;GUO Xiaomei;HU Jun;WU Ming;ZHANG Lei;CAO Wei;YANG Fuyan;LIAO Yao;CHENG Xiaolong(Key Laboratory of Aerosol and Cloud Precipitation,China Meteorological Administration,Nanjing University of Information Science and Technology,Nanjing 210044,China;Guizhou Institute of Mountainous Environment and Climate,Guiyang 550002,China;Institute of Plateau Meteorology,CMA,Chengdu 610072,China;State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081,China)

机构地区：[1]南京信息工程大学中国气象局气溶胶与云降水重点开放实验室,南京210044 [2]贵州省山地环境气候研究所,贵阳550002 [3]中国气象局成都高原气象研究所,成都610072 [4]中国气象科学研究院灾害天气国家重点实验室,北京100081

出　　处：《高原山地气象研究》2022年第4期1-8,共8页Plateau and Mountain Meteorology Research

基　　金：第二次青藏高原综合科学考察研究项目(2019QZKK0105);国家自然科学基金项目(42275196,91544109,91644223)。

摘　　要：四川盆地作为我国一个特殊的大气气溶胶污染区域,亟待厘清其大气污染时空变化与独特盆地地形影响相关机理。本文综述了近年来一系列相关研究成果,包括:(1)揭示了四川盆地大气环境变化中大地形影响作用,青藏高原东侧区域气溶胶空间分布“避风港”效应,以及大地形热力强迫对盆地空气质量变化的“气候调节”影响;(2)探明了四川盆地大气边界层结构对大气气溶胶变化的影响,冬季重霾期间大气边界层垂直结构变化特征及其相关PM_(2.5)物理化学特性;(3)明晰了大气气溶胶在四川盆地暴雨过程中的重要作用机理,以及四川盆地气溶胶高污染分布导致的降水分布型态的气候变化。这些研究提升了四川盆地气溶胶污染形成机理及大地形对大气环境变化影响效应的科学认识,并表明未来应该深入研究四川盆地地形背景下独特大气边界层结构,人为与自然源排放和环境大气物理-化学过程变化。The Sichuan Basin(SB) is a special area of atmospheric aerosol pollution in China,and the mechanism of spatial-temporal variations of air pollution and the influence of unique basin topography should be urgently investigated.This paper reviews a series of related studies,including:(1) Revealing the large topographic effect on atmospheric environment change in the SB,the “harbor effect” of aerosol spatial distribution in the eastern part of the Tibetan Plateau(TP),and the “climate regulation” of TP’s thermal forcing on basin air quality change.(2) Exploring the influence of the atmospheric boundary layer structure on the variations of atmospheric aerosols over the SB,the variations of the atmospheric boundary layer vertical structure during the heavy haze in winter and the related physical and chemical properties of PM_(2.5).(3) Clarifying the important mechanism of atmospheric aerosol on heavy rain in the SB and the climate change of regional precipitation distribution patterns connected with high aerosol pollution distribution in the SB.These studies have improved the scientific understanding of the formation mechanism of aerosol pollution in the SB and the influence of large topography on atmospheric environment change.In the future,the unique atmospheric boundary layer structure,anthropogenic and natural emissions as well as atmospheric physical-chemical process changes should be further studied under the topographic background of the SB.

关 键 词：四川盆地 气溶胶 大气污染 区域特征 

分 类 号：O648.18[理学—物理化学]