大気球観測により初めて捉えられた成層圏大気主成分の重力分離とその中層大気循環研究への応用

• Material Type: 規格・テクニカルリポート類
• Title: 大気球観測により初めて捉えられた成層圏大気主成分の重力分離とその中層大気循環研究への応用
• Author/Editor: 石戸谷, 重之; 菅原, 敏; 森本, 真司; 青木, 周司; 中澤, 高清; 豊田, 栄; 本田, 秀之; 橋田, 元; 村山, 昌平; 山内, 恭; Ishidoya, Shigeyuki; Sugawara, Satoshi; Morimoto, Shinji; Aoki, Shuji; Nakazawa, Takakiyo; Toyoda, Sakae; Honda, Hideyuki; Hashida, Gen; Murayama, Shohei; Yamanouchi, Takashi
• Author Heading: 石戸谷, 重之; 菅原, 敏; 森本, 真司; 青木, 周司; 中澤, 高清; 豊田, 栄; 本田, 秀之; 橋田, 元; 村山, 昌平; 山内, 恭; Ishidoya, Shigeyuki; Sugawara, Satoshi; Morimoto, Shinji; Aoki, Shuji; Nakazawa, Takakiyo; Toyoda, Sakae; Honda, Hideyuki; Hashida, Gen; Murayama, Shohei; Yamanouchi, Takashi
• Publication, Distribution, etc.: 宇宙航空研究開発機構(JAXA)
• Publication Date: 2014-03-31
• Publication Date (W3CDTF): 2014-03-31
• Alternative Title: Gravitational separation of major atmospheric components in the stratosphere observed using a balloon-borne cryogenic air sampler and its application to the middle atmospheric circulation study
• Periodical title: 宇宙航空研究開発機構研究開発報告: 大気球研究報告
• No. or year of volume/issue: JAXA-RR-13-011
• Volume: JAXA-RR-13-011
• Pages: 71-86
• ISSN (Periodical Title): ISSN : 1349-1113
• Text Language Code: jpn
• Subject Heading: Gravitational separation of atmospheric components; Balloon-borne cryogenic air sampler; Changes in the Brewer-Dobson circulation
• Target Audience: 一般
• Note (General): Gravitational separation of major atmospheric components in the stratosphere was detected firstly, from our high-precision measurements of O2/N2, Ar/N2 and the isotopic ratios of N2, O2 and Ar for the air samples collected using a balloon-borne cryogenic sampler. The relationships between the measured variables agree well with those expected from gravitational separation but clearly differ from those expected from artificial fractionation due to thermal diffusion. Simulations with a 2-dimensional model showed that a relationship between gravitational separation and the age of air in the stratosphere would be significantly affected by changes in the Brewer-Dobson circulation, which indicated gravitational separation is usable as a new indicator of the stratospheric circulation. In this paper, we review the past studies about gravitational separation in the middle atmosphere as well as changes in the Brewer-Dobson circulation briefly, and then summarize the above findings and suggestion presented in our recent papers.; 形態: カラー図版あり; Physical characteristics: Original contains color illustrations; 資料番号: AA0062303004; レポート番号: JAXA-RR-13-011
• Access Restrictions: インターネット公開
• Periodical Title (NCID): AA1192675X; https://ci.nii.ac.jp/ncid/AA1192675X
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ

• Summary, etc.: 大気球に搭載したクライオジェニックサンプラーを用いて採取された大気試料の大気主成分濃度および安定同位体比の高精度測定により、成層圏における大気主成分の重力分離が初めて検出された。測定された各観測値の間の関係は重力分離から予測される測定対象分子の質量数に比例した関係と一致し、空気取入口の日射加熱による...