Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6343140 | Atmospheric Research | 2016 | 39 Pages |
Abstract
Ozone source-receptor relationships over East Asia have been quantitatively investigated using a chemical transport model including an on-line tracer-tagged procedure, with a particular focus on the source regions of different daily ozone mixing ratios. Comparison with observations showed that the model reproduced surface ozone and tropospheric nitrogen dioxide column densities. Long-range transport from outside East Asia contributed the greatest fraction to annual surface ozone over remote regions, the Korean peninsula, and Japan, reaching 50%-80% of total ozone. Self-contributions accounted for 5%-20% ozone in the Korean peninsula and Japan, whereas the contribution of trans-boundary transport from photochemical production in China was less than 5%-10%. At extra-high ozone levels, self-contributions reached 50%-60% in the Korean peninsula. Ozone source-receptor relationships showed high seasonal variability over East Asia. Significant transport was also found between sub-regions in China, which presents a great challenge to policy-makers because most current control strategies are confined to specific regions.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Jie Li, Wenyi Yang, Zifa Wang, Huansheng Chen, Bo Hu, Jianjun. Li, Yele. Sun, Pingqing Fu, Yuqia Zhang,