A numerical two-dimensional hydrodynamic model was used to describe the influence of forest belts of different sizes on turbulent transport of SO$_2$ within the atmospheric surface layer. The results of the model calculations showed that the presence of a forest belt results in an substantial reduction of the horizontal SO$_2$ flux due to the decrease of the wind speed and the absorption of SO$_2$ by tree crowns. The extinction coefficient of SO$_2$ flux increases with an increase in the forest belt size and decrease with the pollution source height.
92.60.Fm Boundary layer structure and processes
$^1$Department of Physics, Moscow State University, Moscow, 119991 Russia
$^2$Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071 Russia
Science News of the Faculty of Physics, Lomonosov Moscow State University
This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.