Influence of Human Activities on Wintertime Haze-Related Meteorological Conditions over the Jing–Jin–Ji Region
作者机构：National Climate CenterChina Meteorological AdministrationBeijing 100081China Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science and TechnologyNanjing 210044China School of Geography and Environmental EngineeringGannan Normal UniversityGanzhou 341000China Camford Royal SchoolBeijing 100093China Climate and Environment Modeling LabInstitute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China
出 版 物：《Engineering》 (工程（英文）)
年 卷 期：2021年第7卷第8期
页 面：1185-1192页
核心收录：
学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学]
基 金：This study was jointly supported by the National Key Research and Development Program of China(2017YF0603703 and 2017YF0605004) the Atmospheric Pollution Control of the Prime Minister Fund of China(DQGG0104)
主 题：Meteorological conditions Human activities Haze Jing-Jin-Ji region
摘 要：This work analyzes and discusses the influence of human activities on the meteorological conditions related to winter haze events in Beijing,Tianjin,and Hebei(i.e.,the Jing-Jin-Ji region)during 1961-2016,using the results of two numerical simulation experiments based on the Community Atmosphere Model version 5.1.1(http://***/models/cesm1.0/cam/docs/ug5_1_1/***)used in the international Climate Variability and Predictability Programme(CLIVAR)Climate of the 20th Century Detection and Attribution Project(C20C+D&A).The results show that,under the influence of human activities,the changes in dynamical and thermal meteorological conditions related to winter haze events in the Jing–Jin–Ji region are conducive to the formation and accumulation of haze,and prevent the diffusion of *** dynamical conditions mainly include the obvious weakening of the East Asian winter monsoon(EAWM)and the enhancement of the near-surface anomalous southerly *** thermal conditions include the obvious increase in surface temperature,and the enhancement of water vapor transport and near-surface *** relative contribution of dynamical and thermal conditions to the variation of haze days in the Jing-Jin-Ji region is analyzed using statistical *** results show that the contribution of human activities to the increase of haze days in the Jing-Jin-Ji region is greater than that of natural forcing for the study *** be specific,the dynamical meteorological factors contribute more to the haze days than the thermal meteorological *** contribution of thermal meteorological factors is basically the same in both scenarios.
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