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  1. D300 大学院環境学研究科
  2. D300a 雑誌掲載論文
  3. 学術雑誌

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/2237/25092
a5d0d574-afb6-41ff-9228-32bd62781ec3
名前 / ファイル ライセンス アクション
Matsui_et_al-2016-Journal_of_Geophysical_Research__Atmospheres.pdf Matsui_et_al-2016-Journal_of_Geophysical_Research__Atmospheres.pdf ファイル公開:2016/12/27 (944.5 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-11-24
タイトル
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.

WEKO 67453

en Matsui, H.

Search repository
Koike, M.

× Koike, M.

WEKO 67454

en Koike, M.

Search repository
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
出版者
言語 en
出版者 Wiley
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
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
ISSN
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
著者版フラグ
値 publisher
URI
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
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