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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

Black carbon simulations using a size- and mixing-state-resolved three-dimensional model: 1. Radiative effects and their uncertainties

http://hdl.handle.net/2237/24954
http://hdl.handle.net/2237/24954
d97f2e13-bf4b-43cb-a958-e9e5339d4aa3
名前 / ファイル ライセンス アクション
jgrd52704.pdf jgrd52704.pdf (1.4 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-10-14
タイトル
タイトル Black carbon simulations using a size- and mixing-state-resolved three-dimensional model: 1. Radiative effects and their uncertainties
言語 en
著者 Matsui, H.

× Matsui, H.

WEKO 67102

en Matsui, H.

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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
抄録
内容記述 This study quantifies how uncertainties in the size distribution and mixing state parameters of black carbon (BC) emissions translate into the uncertainties in BC radiative effects by using a particle-size- and mixing-state-resolved three-dimensional model, the Weather Research and Forecasting model with chemistry (WRF-chem) with the Aerosol Two-dimensional bin module for foRmation and Aging Simulation (ATRAS) and the Model for Simulating Aerosol Interactions and Chemistry (MOSAIC). The WRF-chem/ATRAS-MOSAIC model can explicitly calculate BC processes in the atmosphere, such as BC aging due to condensation and coagulation and the resulting enhancement of absorption and cloud condensation nuclei activity, with 12 size and 10 BC mixing state bins (128 bins in total). Fifteen model simulations perturbing the emission parameters within their uncertainties are conducted over East Asia (spring 2009) to understand which parameters and processes are important and which are associated with the uncertainty in evaluating BC radiative effects. The simulations reveal a large variability (uncertainty) of BC optical and radiative variables over the East Asian region (the variability is 58–99%), which corresponds to ranges of BC radiative effect of 1.6–2.8 W m−2 at the top of the atmosphere and from −5.2 to −2.1 W m−2 at the surface over East Asia. BC optical and radiative variables are 3 to 5 times sensitive to the size and the mixing state in emissions than BC mass concentrations (the variability is 20%). The two main causes of the difference in sensitivity are the reduction of the variability of BC mass concentrations by coagulation and the enhancement of the variability of BC absorption by resolving BC mixing state. These complicated responses of aerosol processes can be calculated for the first time using a detailed aerosol model such as ATRAS. The results suggest that the following two points are important in the estimation of BC radiative effects: (1) reduction of the uncertainties in the aerosol size distribution and mixing state in emissions and (2) improvement of the representation of BC mixing state and absorption enhancement in aerosol models because most models do not treat them sufficiently.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 AGU Publications
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/10.1002/2015JD023998
ISSN
収録物識別子タイプ PISSN
収録物識別子 2169-897X
書誌情報 en : JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES

巻 121, 号 4, p. 1793-1807, 発行日 2016-02
著者版フラグ
値 publisher
URI
識別子 http://doi.org/10.1002/2015JD023998
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/24954
識別子タイプ HDL
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