{"created":"2021-03-01T06:27:26.279317+00:00","id":19904,"links":{},"metadata":{"_buckets":{"deposit":"af4debc9-c377-484a-afbc-1d2e97516aaa"},"_deposit":{"id":"19904","owners":[],"pid":{"revision_id":0,"type":"depid","value":"19904"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:00019904","sets":["879:1183:1184:1735"]},"author_link":["84132","84133","84134","84135"],"item_1615768549627":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_9_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Explication of 14C age offsets at medieval cold period in tree ring from the northern Japan","subitem_alternative_title_language":"en"}]},"item_9_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"32","bibliographicPageStart":"27","bibliographicVolumeNumber":"26","bibliographic_titles":[{"bibliographic_title":"名古屋大学加速器質量分析計業績報告書","bibliographic_titleLang":"ja"}]}]},"item_9_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We measured radiocarbon (14C) content in tree ring from the northern Japan at medieval cold period (the latter 15th century) for accuracy improvement of Japanese 14c age calibration. As a result, these average value of 14C dates were 15 years younger than IntCal13. In previous study, the average value of 14C dates of the northern Japanese tree during the 14th to the early 15th century were 31 years older than lnlCal13, but our date showed a reverse tendency. The latter 15th century was in Spörer minimum period, and the atmospheric 14C content rose globally. We consider that this rising event may have been effected hard at the northern Japan. In a result of wiggle-matching using IntCal13, our data were calibrated true calendar dates. But our data were different from In1Cal13 in the shape of wiggle a little. Therefore agreement rates with IntCa113 were low for certain date. When these were independent data, a calendar year can't calibrate correctly. The atmospheric 14C offset during the 13th century when it is another medieval cold period should also be considered by 14C measurement of the dendrodated tree ring from the northern Japan.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"日本の14C年代暦年較正の高精度化に向け，北日本樹木の中世最寒冷期（15世紀後半）の年輪14C年代を測定した．その結果，IntCalより平均15年若い14C年代値が得られた．この結果は，その直前の時代にあたる14-15世紀前半が平均31年古くなることと逆の傾向であった．この原因の一つには，15世紀後半がシュペーラ一極小期前半にあたり，汎地球的に大気14C濃度が上昇したことが挙げられる．しかし，寒冷期中の一時的な温暖期に，試料の14C年代がさらに若くなる傾向も認められたため，太陽活動のみに制御された蓋然性は低く，気候変動も日本周辺大気の14C濃度変動に影響した可能性がある. IntCal13を使用してウィグルマッチングを行った結果，最外年輪試料の真の暦年代（AD1500）を含む較正暦年代（1493-1503 calAD（2σ））が算出された．しかしウィグルの形伏がIntCal13と異なるため，一部の試料の年代値は当てはまりが悪く，仮に単独試料であった場合，正確に暦年較正できないことも示された．今後は，もう一つの中世寒冷期にあたる13・14世紀における北日本の大気14Cオフセットを年代既知年輪試料の測定によって検討していく必要がある．","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_9_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"名古屋大学年代測定総合研究センターシンポジウム報告","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_9_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.18999/sumrua.26.27","subitem_identifier_reg_type":"JaLC"}]},"item_9_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"名古屋大学年代測定資料研究センター","subitem_publisher_language":"ja"}]},"item_9_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"箱崎, 真隆","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"84132","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中村, 俊夫","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"84133","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hakozaki, Masataka","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"84134","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nakamura, Toshio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"84135","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-02-21"}],"displaytype":"detail","filename":"hakozaki2014.pdf","filesize":[{"value":"5.9 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"hakozaki2014.pdf","objectType":"fulltext","url":"https://nagoya.repo.nii.ac.jp/record/19904/files/hakozaki2014.pdf"},"version_id":"fe0e5b1c-54f5-4163-a4cc-f83c2937a0ac"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Hiba arborvitae","subitem_subject_scheme":"Other"},{"subitem_subject":"Northern Japan","subitem_subject_scheme":"Other"},{"subitem_subject":"14C dating","subitem_subject_scheme":"Other"},{"subitem_subject":"regional 14C offset","subitem_subject_scheme":"Other"},{"subitem_subject":"14C calibration","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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"中世最寒冷期の北日本14C年代偏差の解明","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"中世最寒冷期の北日本14C年代偏差の解明","subitem_title_language":"ja"}]},"item_type_id":"9","owner":"1","path":["1735"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2015-05-15"},"publish_date":"2015-05-15","publish_status":"0","recid":"19904","relation_version_is_last":true,"title":["中世最寒冷期の北日本14C年代偏差の解明"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-01-16T04:09:00.744060+00:00"}