{"created":"2023-06-20T14:35:40.817347+00:00","id":1948,"links":{},"metadata":{"_buckets":{"deposit":"9e6b88fe-bd81-4a36-a816-a26e39c2c2d4"},"_deposit":{"created_by":1,"id":"1948","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"1948"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00001948","sets":["1398:1408:1412","1887:1893","9:10:75:76"]},"author_link":["1705","1713","1714","1717","1720","1710","1721","1723","1716","1712","1707","1708","1709","1711","1718","1719","1722","1704","1706","1715"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_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"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014-03-31","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"86","bibliographicPageStart":"71","bibliographicVolumeNumber":"JAXA-RR-13-011","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発報告: 大気球研究報告"},{"bibliographic_title":"JAXA Research and Development Report","bibliographic_titleLang":"en"}]}]},"item_3_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"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熱拡散等の観測上の問題から生じる関係とは明らかに異なる値を示した。Brewer-Dobson 循環の変動に伴って重力分離と成層圏空気の年齢の関係が大きく変動することが2 次元大気化学輸送モデルを用いたシミュレーションから明らかになり、重力分離が成層圏大気循環研究における新たな指標となり得ることが示された。本稿では中層大気の重力分離とBrewer-Dobson 循環の変動に関する過去の研究例を短評した後、我々の最近の論文で報告された上記の成果をとりまとめて報告する。","subitem_description_type":"Abstract"}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"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.","subitem_description_type":"Other"}]},"item_3_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_3_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0062303004","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-RR-13-011","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構(JAXA)"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-1113","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1192675X","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"産業技術総合研究所(AIST)"},{"subitem_text_value":"宮城教育大学"},{"subitem_text_value":"東北大学"},{"subitem_text_value":"東北大学"},{"subitem_text_value":"東北大学"},{"subitem_text_value":"東京工業大学"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)"},{"subitem_text_value":"国立極地研究所"},{"subitem_text_value":"産業技術総合研究所(AIST)"},{"subitem_text_value":"国立極地研究所"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"National Institute of Advanced Industrial Science and Technology (AIST)"},{"subitem_text_language":"en","subitem_text_value":"Miyagi University of Education"},{"subitem_text_language":"en","subitem_text_value":"Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"Tokyo Institute of Technology"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)"},{"subitem_text_language":"en","subitem_text_value":"National Institute of Polar Research"},{"subitem_text_language":"en","subitem_text_value":"National Institute of Advanced Industrial Science and Technology (AIST)"},{"subitem_text_language":"en","subitem_text_value":"National Institute of Polar Research"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"石戸谷, 重之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"菅原, 敏"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"森本, 真司"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"青木, 周司"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中澤, 高清"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"豊田, 栄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"本田, 秀之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"橋田, 元"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"村山, 昌平"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山内, 恭"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ishidoya, Shigeyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sugawara, Satoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Morimoto, Shinji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Aoki, Shuji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakazawa, Takakiyo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Toyoda, Sakae","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Honda, Hideyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hashida, Gen","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Murayama, Shohei","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamanouchi, Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-15"}],"displaytype":"detail","filename":"62303004.pdf","filesize":[{"value":"1.5 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"62303004.pdf","url":"https://jaxa.repo.nii.ac.jp/record/1948/files/62303004.pdf"},"version_id":"17ea4520-79f7-4ef1-84f8-fa42544cc072"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Gravitational separation of atmospheric components","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Balloon-borne cryogenic air sampler","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Changes in the Brewer-Dobson circulation","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"technical 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