Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9458866 | Atmospheric Environment | 2005 | 7 Pages |
Abstract
As an effort to obtain more extensive data on sulfur dioxide dry deposition in northern China, experiments were carried out in Beijing by trying a new approach to the deposition flux determination. In this approach we determined the flux by a traditional concentration gradient method in the cases where the wind velocity profile conformed to the logarithmic law. In the cases outside the efficacy of the logarithmic law, in which considerable difficulty had been experienced in the traditional method, we resorted to a new concept of regarding the deposition as a reaction between sulfur dioxide and the ground surface. We introduced a mathematical model for the surface reaction, and, determining the reaction parameters on the basis of the logarithmic wind profile data, used the model to evaluate the flux in the non-logarithmic law cases. This method should enable us to obtain the dry deposition data for much more situations, including those which are difficult to be dealt with by the traditional method.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Masahiro Utiyama, Tsutomu Fukuyama, Kazuhiko Sakamoto, Hidekazu Ishihara, Atsuyuki Sorimachi, Takeshi Tanonaka, Xuhui Dong, Hao Quan, Wei Wang, Dagang Tang,