{"created":"2021-03-01T06:52:09.798824+00:00","id":33388,"links":{},"metadata":{"_buckets":{"deposit":"dd8b9818-9329-4dfc-b25a-7e68e8e42ed9"},"_deposit":{"id":"33388","owner":"1","owners":[],"pid":{"revision_id":0,"type":"depid","value":"33388"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00033388","sets":["80:4535:4899:4911","9:504:4538:4901:4912"]},"author_link":["130362","130363","130360","130361"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"5.地球磁場の移動性部分と停滞性部分の分離"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1969-03-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"97","bibliographicPageStart":"65","bibliographicVolumeNumber":"47","bibliographic_titles":[{"bibliographic_title":"東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo"}]}]},"item_4_description_13":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The earth's magnetic field has been separated into two types of field, the standing and the drifting fields by analysing the Gauss-Schmidt coefficients going back to the 17th century. The results show that the drifting field is mainly composed of a few low harmonics, and the standing field has a more complicated distribution. It has been confirmed that superposition of two types of field can well approximate the distribution of the observed non-dipole fields for various epochs. Even such a large rate of increase in the intensity amounting to 50γ/year as is observed for the Mongolian anomaly can also be accounted for by simple superposition of the two types of field. It is noteworthy that these two fields seem to have no interaction with each other, suggesting that they are of separate origin.|17世紀にさかのぼって,地球磁場の球函数展開係数をもちい,地球磁場を移動性部分と停滞性部分とに分離した.移動性磁場は球函数の低次の項で構成され,比較的単純な分布をしている.停滞性磁場の分布は,これに比べると複雑である.ここで分離された2種類の磁場を重ね合せることによって,過去数世紀にわたる地球磁場の変化を,充分よく近似できることが催められた.蒙古地方の磁気異常の年間50γにおよぶ急速な成長も,2種類の磁場の単純な重ね合せで説明できることがわかった.移動性磁場と停滞性磁場との間に,相互作用が認められないのは注目すべきことで,両者の発生機構が全く異るのではないかと考えられる.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"130362","nameIdentifierScheme":"WEKO"}],"names":[{"name":"行武, 毅"}]},{"nameIdentifiers":[{"nameIdentifier":"130363","nameIdentifierScheme":"WEKO"}],"names":[{"name":"立中, ひろ子"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0000033388","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学地震研究所"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162258","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00408972","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"453","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"Earthquake Research Institute, University of Tokyo"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Earthquake Research Institute"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yukutake, Takesi"}],"nameIdentifiers":[{"nameIdentifier":"130360","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tachinaka, Hiroko"}],"nameIdentifiers":[{"nameIdentifier":"130361","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":"2017-06-26"}],"displaytype":"detail","filename":"ji0471005.pdf","filesize":[{"value":"2.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ji0471005.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/33388/files/ji0471005.pdf"},"version_id":"4f063e7d-904e-4a06-86f6-d4e2c48db814"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"5. Separation of the Earth's Magnetic Field into the Drifting and the Standing Parts","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"5. Separation of the Earth's Magnetic Field into the Drifting and the Standing Parts","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["4911","4912"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-05-30"},"publish_date":"2008-05-30","publish_status":"0","recid":"33388","relation_version_is_last":true,"title":["5. Separation of the Earth's Magnetic Field into the Drifting and the Standing Parts"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T04:37:46.579524+00:00"}