{"created":"2023-06-20T15:18:51.627406+00:00","id":49232,"links":{},"metadata":{"_buckets":{"deposit":"0db8e4c8-72f2-4f1b-836d-e7be95ae6837"},"_deposit":{"created_by":1,"id":"49232","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"49232"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00049232","sets":["1543:1827:2263","1887:1891"]},"author_link":["554885","554890","554881","554886","554883","554882","554887","554888","554889","554884"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"大気上層の長期変動を考慮した宇宙開発の持続可能性評価"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2023-02-28","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"472","bibliographicPageStart":"457","bibliographic_titles":[{}]}]},"item_4_description_14":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第10回スペースデブリワークショップ (2022年11月28-30日. 主催: 宇宙航空研究開発機構研究開発部門(JAXA), 宇宙航空研究開発機構調布航空宇宙センター(JAXA)(CAC)), 調布市, 東京","subitem_description_type":"Other"}]},"item_4_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"The 10th Space Debris Workshop (November 28-30, 2022. Organizer: Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA), Chofu Aerospace Center, Japan Aerospace Exploration Agency (JAXA)(CAC)), Chofu, Tokyo, Japan","subitem_description_type":"Other"}]},"item_4_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"本研究は，熱圏の長期的な密度減少に起因する軌道環境の変化が，今後の宇宙開発に与える影響について評価することを目的としている．近年問題となっている温室効果が，宇宙機が多く運用されている高度800km までの熱圏で寒冷化を引き起こし，それによる大気密度の減少が報告されている．大気密度の減少を考慮せずに長期的な軌道環境の予測を行うと，低軌道におけるスペースデブリの数や軌道寿命が過小評価される恐れがある．本研究では，JAXA と九州大学が共同開発・運用している軌道環境推移モデルを用いて，大気密度減少化における長期的な軌道上のスペースデブリ数，スペースデブリの軌道寿命，及び宇宙機やスペースデブリの衝突確率を予測する．また，軌道環境の変化に対応可能となるよう，25 年ルールを満たす高度や必要増速量，能動的デブリ除去の効果を計算し，衛星運用の安全性向上のための方策について提案する．","subitem_description_type":"Abstract"}]},"item_4_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"There is a growing concern about climate change caused by greenhouse gases. Especially, carbon dioxide has significant influences not only on the lower atmosphere but also on the upper atmosphere such as the thermosphere where space objects are orbiting. One of the problems of increasing carbon dioxide is that it reduces the density of the thermosphere, resulting in less atmospheric drag on space objects. This paper evaluates the long- term influence of decreasing the atmospheric drag on the space environment and space activities using an orbital debris evolutionary model. In this study, Jacchia-Roberts 1971 atmospheric model is used to calculate the atmospheric density. In addition, this study makes correction to atmospheric density with considering the long-term density decrease. This paper also reveals the longterm impact of density decrease on space activity by calculating the debris number transition, the extension of debris orbital lifetime, and collision probability with debris. Furthermore, this study shows the change of delta-v and the collision probability with other objects to satisfy the 25-year rule.","subitem_description_type":"Other"}]},"item_4_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_4_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_4_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA2230027041","subitem_description_type":"Other"}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.20637/00049214","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構(JAXA)"}]},"item_4_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_4_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"九州大学"},{"subitem_text_value":"九州大学"},{"subitem_text_value":"宇宙航空研究開発機構研究開発部門(JAXA)"},{"subitem_text_value":"宇宙航空研究開発機構研究開発部門(JAXA)"},{"subitem_text_value":"九州大学"}]},"item_4_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Kyushu University"},{"subitem_text_language":"en","subitem_text_value":"Kyushu University"},{"subitem_text_language":"en","subitem_text_value":"Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Kyushu University"}]},"item_4_version_type_30":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"清水, 貴裕"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉村, 康広"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"河本, 聡美"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"原田, 隆佑"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"花田, 俊也"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SHIMIZU, Takahiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"YOSHIMURA, Yasuhiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KAWAMOTO, Satomi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"HARADA, Ryusuke","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"HANADA, Toshiya","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":"2023-02-28"}],"displaytype":"detail","filename":"AA2230027041.pdf","filesize":[{"value":"2.7 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AA2230027041.pdf","url":"https://jaxa.repo.nii.ac.jp/record/49232/files/AA2230027041.pdf"},"version_id":"a94d2c12-848e-4dfa-8e06-47cefe9d0478"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"Evaluation of Sustainable Space Development with Considering Long-term Change in Upper Atmosphere","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Evaluation of Sustainable Space Development with Considering Long-term Change in Upper Atmosphere","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["1891","2263"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-02-28"},"publish_date":"2023-02-28","publish_status":"0","recid":"49232","relation_version_is_last":true,"title":["Evaluation of Sustainable Space Development with Considering Long-term Change in Upper Atmosphere"],"weko_creator_id":"1","weko_shared_id":1},"updated":"2023-06-20T18:39:09.355393+00:00"}