Modeling study of surface ozone source-receptor relationships in East Asia

Modeling study of surface ozone source-receptor relationships in East Asia
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东亚地表臭氧源-受体关系的模拟研究

DOI:
10.1016/j.atmosres.2015.07.010
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发表时间:
2016
影响因子:
5.5
通讯作者:
Zhang Y.
Zhang Y.
中科院分区:
地球科学1区
文献类型:
--
作者:
Li J.J;Sun Y.;Fu P.;Zhang Y.

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东亚上空的臭氧源-受体的关系进行了定量研究,使用化学传输模式,包括一个在线示踪剂标记的程序,特别侧重于不同的每日臭氧混合比的源区。与观测结果的比较表明,模式再现了地面臭氧和对流层二氧化氮柱密度。来自东亚以外地区的远距离传输对偏远地区、朝鲜半岛和日本的年度地表臭氧贡献最大,达到臭氧总量的50%-80%。在朝鲜半岛半岛和日本,臭氧的自我贡献占5%-20%,而在中国,来自光化学生产的跨界输送的贡献小于5%-10%。在极高的臭氧水平下,朝鲜半岛的自我贡献达到50%-60%。臭氧源-受体关系显示东亚地区的季节性变化很大。在中国的次区域之间也发现了大量的运输,这给政策制定者带来了巨大的挑战,因为目前大多数控制策略都局限于特定的区域。
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.
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