作者
Daniel J Jacob, Brendan D Field, Qinbin Li, Donald R Blake, Joost de Gouw, Carsten Warneke, Armin Hansel, Armin Wisthaler, Hanwant B Singh, A Guenther
发表日期
2005/4/27
期刊
Journal of Geophysical Research: Atmospheres
卷号
110
期号
D8
简介
We use a global three‐dimensional model simulation of atmospheric methanol to examine the consistency between observed atmospheric concentrations and current understanding of sources and sinks. Global sources in the model include 128 Tg yr−1 from plant growth, 38 Tg yr−1 from atmospheric reactions of CH3O2 with itself and other organic peroxy radicals, 23 Tg yr−1 from plant decay, 13 Tg yr−1 from biomass burning and biofuels, and 4 Tg yr−1 from vehicles and industry. The plant growth source is a factor of 3 higher for young than from mature leaves. The atmospheric lifetime of methanol in the model is 7 days; gas‐phase oxidation by OH accounts for 63% of the global sink, dry deposition to land 26%, wet deposition 6%, uptake by the ocean 5%, and aqueous‐phase oxidation in clouds less than 1%. The resulting simulation of atmospheric concentrations is generally unbiased in the Northern …
引用总数
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学术搜索中的文章
DJ Jacob, BD Field, Q Li, DR Blake, J de Gouw… - Journal of Geophysical Research: Atmospheres, 2005