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Deposition processes of ionic constituents to snow cover
http://hdl.handle.net/2237/23080
http://hdl.handle.net/2237/230803ecb501e-9e12-4f36-84ad-4620d4512317
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-11-04 | |||||
タイトル | ||||||
タイトル | Deposition processes of ionic constituents to snow cover | |||||
言語 | en | |||||
著者 |
Osada, K.
× Osada, K.× Shido, Y.× Iida, H.× Kido, 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 | © 2010, Authors. Licensed under the Creative Commons (CC-BY-NC-ND 4.0, http://creativecommons.org/licenses/by-nc-nd/4.0/) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Acid deposition | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Scavenging process | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Eastern Asia | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Mountain slope | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Mount Tateyama | |||||
抄録 | ||||||
内容記述 | Atmospheric deposition is an important removal process of aerosol particles and gases from the atmosphere. To elucidate the relative contributions of wet and dry processes and in-cloud and below-cloud scavenging based on deposition amounts in winter at Mt. Tateyama, central Japan, we obtained daily samples (December, 2006–March, 2007) of size-segregated aerosol particles and precipitation at Senjyugahara (SJ; 475 m a.s.l.) and vertical samples of spring snow cover at Murododaira (MR, 2450 m a.s.l., 13 km distance from SJ) on the western flank of Mt. Tateyama. The NH4+ and nssSO42− in aerosols were mostly found in the fine fraction (<2 μm), although Na+, NO3−, and nssCa2+ were mainly detected in the coarse fraction (>2 μm). Average ionic concentrations (μg g−1) in precipitation at SJ were higher about 3.8 for Na+ and nssCa2+, 3.4 for NO3−, 3.7 for NH4+, 2.5 for nssSO42− than those at MR, whereas cumulative precipitation amounts at SJ and MR were, respectively, 84 and 175 cm of water equivalent. Wet and dry deposition amounts during the study period were estimated for sites using size-segregated aerosol data, winter averages of HNO3, NH3, and SO2 concentrations, and dry deposition velocities. Particle-dry deposition comprised about 3% (Na+) to 11% (NH4+) of the total deposition at MR. The maximum amounts of gas dry deposition were estimated, respectively, as 4, 13, and 3% of the total deposition at MR for NH4+, NO3−, and nssSO42−. The relative contributions of below-cloud scavenging (BCS) between MR and SJ were estimated as considering the wet only deposition amount at MR. Higher contributions of BCS were obtained for Na+ (56%) and nssCa2+ (45%), whereas BCSs for NH4+, NO3−, and nssSO42− were lower than 28%. Ionic constituents existing predominantly in the coarse fraction showed a large contribution of BCS. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Elsevier | |||||
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 | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.atmosenv.2009.10.031 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1352-2310 | |||||
書誌情報 |
en : Atmospheric Environment 巻 44, 号 3, p. 347-353, 発行日 2010-01 |
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著者版フラグ | ||||||
値 | author | |||||
URI | ||||||
識別子 | http://dx.doi.org/10.1016/j.atmosenv.2009.10.031 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/23080 | |||||
識別子タイプ | HDL |