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Enhancement of aerosol responses to changes in emissions over East Asia by gas-oxidant-aerosol coupling and detailed aerosol processes
http://hdl.handle.net/2237/25092
http://hdl.handle.net/2237/25092a5d0d574-afb6-41ff-9228-32bd62781ec3
名前 / ファイル | ライセンス | アクション |
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Matsui_et_al-2016-Journal_of_Geophysical_Research__Atmospheres.pdf ファイル公開:2016/12/27 (944.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-11-24 | |||||
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タイトル | Enhancement of aerosol responses to changes in emissions over East Asia by gas-oxidant-aerosol coupling and detailed aerosol processes | |||||
言語 | en | |||||
著者 |
Matsui, H.
× Matsui, H.× Koike, M. |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2016 American Geophysical Union | |||||
抄録 | ||||||
内容記述 | We quantify the responses of aerosols to changes in emissions (sulfur dioxide, black carbon (BC), primary organic aerosol, nitrogen oxides (NOx), and volatile organic compounds) over East Asia by using simulations including gas-oxidant-aerosol coupling, organic aerosol (OA) formation, and BC aging processes. The responses of aerosols to NOx emissions are complex and are dramatically changed by simulating gas-phase chemistry and aerosol processes online. Reduction of NOx emissions by 50% causes a 30–40% reduction of oxidant (hydroxyl radical and ozone) concentrations and slows the formation of sulfate and OA by 20–30%. Because the response of OA to changes in NOx emissions is sensitive to the treatment of emission and oxidation of semivolatile and intermediate volatility organic compounds, reduction of the uncertainty in these processes is necessary to evaluate gas-oxidant-aerosol coupling accurately. Our simulations also show that the sensitivity of aerosols to changes in emissions is enhanced by 50–100% when OA formation and BC aging processes are resolved in the model. Sensitivity simulations show that the increase of NOx emissions from 1850 to 2000 explains 70% (40%) of the enhancement of aerosol mass concentrations (direct radiative effects) over East Asia during that period through enhancement of oxidant concentrations and that this estimation is sensitive to the representation of OA formation and BC aging processes. Our results demonstrate the importance of simultaneous simulation of gas-oxidant-aerosol coupling and detailed aerosol processes. The impact of NOx emissions on aerosol formation will be a key to formulating effective emission reduction strategies such as BC mitigation and aerosol reduction policies in East Asia. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
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言語 | en | |||||
出版者 | Wiley | |||||
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言語 | eng | |||||
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資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
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出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1002/2015JD024671 | |||||
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収録物識別子タイプ | EISSN | |||||
収録物識別子 | 2169-8996 | |||||
書誌情報 |
en : JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 巻 121, 号 12, p. 7161-7171, 発行日 2016-06-27 |
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値 | publisher | |||||
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識別子 | http://doi.org/10.1002/2015JD024671 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/25092 | |||||
識別子タイプ | HDL |