Intense atmospheric pollution modifies weather: a case of mixed biomass burning with fossil fuel combustion pollution in eastern China
作者单位：Institute for Climate and Global Change Research & School of Atmospheric Sciences Nanjing University Department of Physics University of Helsinki Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Shenzhen Meteorological Bureau
会议名称：《第八届全国优秀青年气象科技工作者学术研讨会》
会议日期：2014年
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：funded by the MOST 973 Program (2010CB428500 and 2010CB950700) National Natural Science Foundation of China (D0510/41275129) the Jiangsu Provincial 2011 Program (Collaborative Innovation Center of Climate Change) supported by the ’985 Program and the Fundamental Research Funds for Central Universities from Ministry of Education, China supported by the Academy of Finland projects (1118615, 139656) the European Commission via ERC Advanced Grant ATM-NUCLE
摘 要：The influence of air pollutants, especially aerosols,on regional and global climate has been widely investigated,but only a very limited number of studies report their impacts on everyday weather. In this work, we present for the first time direct（observational） evidence of a clear effect of how a mixed atmospheric pollution changes the weather with a substantial modification in the air temperature and *** using comprehensive measurements in Nanjing, China,we found that mixed agricultural burning plumes with fossil fuel combustion pollution resulted in a decrease in the solar radiation intensity by more than 70 %, a decrease in the sensible heat by more than 85 %, a temperature drop by almost10 K, and a change in rainfall during both daytime and nighttime. Our results show clear air pollution–weather interactions, and quantify how air pollution affects weather via air pollution–boundary layer dynamics and aerosol–radiation–cloud feedbacks. This study highlights cross-disciplinary needs to investigate the environmental, weather and climate impacts of the mixed biomass burning and fossil fuel combustion sources in East China.