{"created":"2023-07-25T11:06:41.012970+00:00","id":10158,"links":{},"metadata":{"_buckets":{"deposit":"6cdf01e5-3ae4-432e-ae1c-965b1c13f12a"},"_deposit":{"created_by":27,"id":"10158","owners":[27],"pid":{"revision_id":0,"type":"depid","value":"10158"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00010158","sets":[]},"author_link":["19035","19037","19036","19034"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-04","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"22","bibliographicPageStart":"15","bibliographicVolumeNumber":"6","bibliographic_titles":[{"bibliographic_title":"Polar science"},{"bibliographic_title":"Polar science","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Climate change associated with recent global warming is most prominent in the Arctic and subarctic. The Arctic Oscillation (AO) is a dominant atmospheric phenomenon in the Northern Hemisphere. Decadal variability of surface air temperature (SAT) associated with the AO index shows high correlation with recent global warming trend. In this study, the SAT variability in the Northern Hemisphere is separated in contributions from decadal variability by the AO and remaining components.The results indicate that the decadal variability of the AO index shows high correlation with the SAT variation until 1990. The AO index and SAT variabilities show a negative trend during 1949–1969, while the trend is positive during 1969–1989. In addition, the spatial distribution pattern of the SAT linear trend during each period shows the same pattern as AO. However, while the AO index indicates a negative trend, the SAT trend is continuously positive also after 1990. This warming pattern appearing after 1990 is caused by the Arctic amplification.Although the AO has a large amplitude on local scale, the AO is almost dynamically orthogonal to the hemispheric warming component. However, the AO can be related to the decadal variability of the Arctic and subarctic temperature change through the feedbacks by climate sub-systems.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"　近年、地球温暖化に伴う北半球中高緯度の気候変動が注目されている。一方で、北半球中高緯度の大気大循環の長期変動を支配する要因として北極振動(AO)がある。AOは地上気圧のEOF-1として定義され、カオス的に変動する自然変動である。そこで本研究では、近年の地球温暖化トレンドから自然変動であるAO に伴う気温の変動を除去することを目的とした。\n　その結果、AOの構造は地上気温の最も卓越するパターン(EOF-1)としても現れ、温暖化パターン(EOF-2)よりも卓越することがわかった。しかし、AOの構造を北半球で平均すると正と負の偏差が相殺し、ゼロに近い値となってしまうことが示された。つまり、AOはローカルな気温変化には強く影響するものの、雪氷面とのフィードバックがない条件下では半球規模での気温の変動には影響を与えないという特徴がある。 ","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"国立極地研究所"}]},"item_10001_relation_12":{"attribute_name":"論文ID（NAID）","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"110009418536","subitem_relation_type_select":"NAID"}}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2012.02.001"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2012.02.001","subitem_relation_type_select":"DOI"}}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12240481","subitem_source_identifier_type":"NCID"}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18739652","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nagato, Yuta"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanaka, H.L."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nagato, Yuta","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanaka, H.L.","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Arctic Oscillation","subitem_subject_scheme":"Other"},{"subitem_subject":"Global warming","subitem_subject_scheme":"Other"},{"subitem_subject":"Decadal variability","subitem_subject_scheme":"Other"},{"subitem_subject":"Ice-albedo feedback","subitem_subject_scheme":"Other"},{"subitem_subject":"Arctic Oscillation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Global warming","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Decadal variability","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Ice-albedo feedback","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Global warming trend without the contributions from decadal variability of the Arctic Oscillation","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Global warming trend without the contributions from decadal variability of the Arctic Oscillation"},{"subitem_title":"Global warming trend without the contributions from decadal variability of the Arctic Oscillation","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"27","path":["1347"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-10-16"},"publish_date":"2014-10-16","publish_status":"0","recid":"10158","relation_version_is_last":true,"title":["Global warming trend without the contributions from decadal variability of the Arctic Oscillation"],"weko_creator_id":"27","weko_shared_id":27},"updated":"2023-07-25T16:21:21.715982+00:00"}