典型文献
The first 5-year Clean Air Action did increase the blue days in winter over Beijing-Tianjin-Hebei
文献摘要：
China has made great efforts to mitigate its long-standing envi-ronmental problem in recent years.In China,during the first 5-year Clean Air Action(2013-2017),remarkable reductions in primary pollutants such as SO2 and fine particle matter(PM2.5)have been achieved,especially in Beijing-Tianjin-Hebei(BTH)region[1,2].After an explosive increase in concern for the Beijing Blue Events in 2015,the direct changes of blue days in China have received widespread attention[3,4].However,less air pollution does not directly correspond to more blue skies.For example,days with high cloud cover or precipitation do not belong to blue days even though there is less air pollution.In addition,inconsistencies between dropping PM,unchanged low visibility events,and a remarkable increase of aerosol optical depth can be found even during the COVID-19 lockdown period[5-7].Beyond that,unfavor-able meteorological conditions counteract the effects of reduced emissions,resulting in frequent haze in the BTH region[8,9].Therefore,emission reductions do not lead directly to more blue days.
文献关键词：
中图分类号：
作者姓名：
Su Wang;Gang Huang;Tie Dai;Kaiming Hu
作者机构：
State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China;University of Chinese Academy of Sciences,Beijing 100049,China;Laboratory for Regional Oceanography and Numerical Modeling,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China;Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster of Ministry of Education,Nanjing University of Information Science and Technology,Nanjing 210044,China;Center for Monsoon System Research,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China
文献出处：
引用格式：
[1]Su Wang;Gang Huang;Tie Dai;Kaiming Hu-.The first 5-year Clean Air Action did increase the blue days in winter over Beijing-Tianjin-Hebei)[J].科学通报（英文版）,2022(08):774-776
A类：
unfavor
B类：
first,Clean,Air,Action,did,increase,blue,days,winter,Beijing,Tianjin,Hebei,China,has,made,great,efforts,mitigate,its,standing,envi,ronmental,problem,recent,years,In,during,remarkable,reductions,primary,pollutants,such,SO2,fine,particle,matter,PM2,have,been,achieved,especially,BTH,region,After,explosive,concern,Blue,Events,changes,received,widespread,attention,However,less,air,pollution,does,not,directly,correspond,more,skies,For,example,high,cloud,cover,precipitation,belong,though,there,addition,inconsistencies,between,dropping,unchanged,low,visibility,events,aerosol,optical,depth,can,found,lockdown,period,Beyond,that,meteorological,conditions,counteract,effects,reduced,emissions,resulting,frequent,haze,Therefore,lead
AB值：
0.614471
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
