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Optical properties of aerosol particles in the atmospheric boundary layer in regions with and without sea ice
https://nipr.repo.nii.ac.jp/records/16831
https://nipr.repo.nii.ac.jp/records/16831b1bc8acd-4f57-434d-8584-950eeafcbd46
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2021-12-24 | |||||
タイトル | ||||||
タイトル | Optical properties of aerosol particles in the atmospheric boundary layer in regions with and without sea ice | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Optical properties of aerosol particles in the atmospheric boundary layer in regions with and without sea ice | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Scattering coefficient | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Absorption coefficient | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Single-scattering albedo | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Ångström exponent | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Southern ocean | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Sea ice | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Koga, Seizi
× Koga, Seizi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The optical properties of aerosol particles must be clearly understood to reduce uncertainty in the prediction of the global climate change. Simultaneous measurements of scattering and absorption coefficients of aerosol particles were conducted in the atmospheric boundary layer over the western North Pacific and the Southern Ocean. For the scattering coefficient, total scattering and backscattering coefficients were measured at three different wavelengths. Over the western North Pacific, significant differences in the Ångström exponent and absorption coefficient were found between polluted and pristine air masses. Over the parts of the Southern Ocean free of sea ice, the Ångström exponent and the ratio of the back-to total-scattering coefficients were uniform. However, over the sea-ice regions, the scattering coefficients were an order of magnitude lower, and the Ångström exponent an order of magnitude higher, than over the parts of the ocean free of sea ice. These differences appear to be due to the fact that the emission of aerosol precursors and sea salt particles is suppressed by sea ice. This study represents the difference in aerosol optical properties as a function of source region and sea condition. These results will contribute to improving the accuracy of estimates of the direct radiative forcing effects due to aerosol particles. | |||||
書誌情報 |
en : Polar Science 巻 29, p. 100704, 発行日 2021-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polar.2021.100704 | |||||
関連名称 | 10.1016/j.polar.2021.100704 |