Intense atmospheric pollution modifies weather: a case of mixed biomass burning with fossil fuel combustion pollution Institute for Climate and Global Change Research & School of Atmospheric Sciences, Nanjing University, Nanjing, 210093, China.2Department of Physics, University of Helsinki, 00014 Helsinki, Finland.3Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University,Hong Kong, China4Shenzhen Meteorological Bureau, Shenzhen, ChinaReceived: 30 April 2013 – Accepted: 19 May 2013 – Published: 3 June 2013 Abstract The influence of air pollutants, particularly aerosols, on regional and global climate is widely investigated, but only a very limited number of studies reports their impacts on everyday weather. In this work, we present for the first time direct (observational) 5 evidence of a clear effect how a mixed atmospheric pollution changes the weather with a substantial modification in air temperature and rainfall. By using comprehensive measurements in Nanjing, China, we found that mixed agricultural burning plumes with fossil fuel combustion pollution resulted in a decrease of solar radiation by more than 70 %, of sensible heat flux over 85 %, a temperature drop by almost 10 K, and a change 10 of rainfall during daytime and nighttime. Our results show clear air pollution – weather interactions, and quantify how air pollution affects weather with the influence of air pollution-boundary layer dynamics and aerosol-radiation-cloudy feedbacks. This study highlights a cross-disciplinary needs to study the environmental, weather and climate impact of the mixed biomass burning and fossil fuel combustion sources in the East China.
Posted on: Sun, 09 Jun 2013 15:07:12 +0000
Trending Topics
Recently Viewed Topics
© 2015