{"created":"2021-03-01T06:52:58.009946+00:00","id":34109,"links":{},"metadata":{"_buckets":{"deposit":"cd555589-ee2e-4cd2-a98a-173a20731749"},"_deposit":{"id":"34109","owner":"1","owners":[],"pid":{"revision_id":0,"type":"depid","value":"34109"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00034109","sets":["80:4535:5077:5081","9:504:4538:5079:5082"]},"author_link":["132907","132908","132909","132904","132905","132906"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"日本に於ける地磁氣短周期變化の異常と地下構造(序報)"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1952-09-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"221","bibliographicPageStart":"207","bibliographicVolumeNumber":"30","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":"A brief outline of geomagnetic observation at Aburatsubo is described. The anomalously large amplitude of ΔZ and the strong parallelism between ΔH and ΔZ are found on the magnetograms there. The anomalous behavior is studied with the aid of magnetograms from various observatories in Japan and her vicinity. And the anomalous behavior is confirmed at all the observatories situated in the central part of Japan, while the said parallelism and large amplitude of ΔZ become less in the southern and northern parts of Japan. Analysing the geomagnetic data at the time of the solar eclipse on June 19, 1936, which proved to be most useful because of the proper distribution of temporary stations, it is found out that the anomalous distribution of geomagnetic force may be due to electric currents flowing under Japan, the currents seeming to be electromagnetically induced by changes in geomagnetic force of external origin in an electrically heterogeneous earth. Since we know that the electrical state beneath North Europe agrees well with the electrical states determined on a world-wide analysis, some special conditions may be said to exist in the earth's crust beneath Japan. As is well known, Japan is the most seismically active country in the world. And we naturally suspect that there are some relations between the above-mentioned peculiar condition and the seismicity or volcanism in Japan. In order to investigate in fuller detail, the writers are now collecting copies of magnetograms on June 19, 1936 from foreign observatories all over the world. A more complete analysis concerning the anomalous behavior of geomagnetic variations of short period in Japan will be made in the near future. In conclusion, the writers are grateful to the Ionosphere Research Committee of Japan with whose data a part of the present study was carried out. Especially the writers wish to express their thanks to the Wakkanai, the Kakioka and the Aso Magnetic Observatories. The writers are also indebted to Professor T. Nagata and Mr. N. Fukushima for their helpful discussions.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"132907","nameIdentifierScheme":"WEKO"}],"names":[{"name":"RIKITAKE, Tsuneji"}]},{"nameIdentifiers":[{"nameIdentifier":"132908","nameIdentifierScheme":"WEKO"}],"names":[{"name":"YKOYAMA, Izumi"}]},{"nameIdentifiers":[{"nameIdentifier":"132909","nameIdentifierScheme":"WEKO"}],"names":[{"name":"HISHIYAMA, Yoneko"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0000034109","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":"地震研究所"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"力武, 常次"}],"nameIdentifiers":[{"nameIdentifier":"132904","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"横山, 泉"}],"nameIdentifiers":[{"nameIdentifier":"132905","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菱山, よね子"}],"nameIdentifiers":[{"nameIdentifier":"132906","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":"2017-06-27"}],"displaytype":"detail","filename":"ji0303003.pdf","filesize":[{"value":"966.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ji0303003.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/34109/files/ji0303003.pdf"},"version_id":"45a7f0ff-1e29-4cde-9310-2aef7c33c4f2"}]},"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":"A Preliminary Study on the Anomalous Behavior of Geomagnetic Variations of Short Period in Japan and Its Relation to the Subterranean Structure","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"A Preliminary Study on the Anomalous Behavior of Geomagnetic Variations of Short Period in Japan and Its Relation to the Subterranean Structure","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["5081","5082"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-05-30"},"publish_date":"2008-05-30","publish_status":"0","recid":"34109","relation_version_is_last":true,"title":["A Preliminary Study on the Anomalous Behavior of Geomagnetic Variations of Short Period in Japan and Its Relation to the Subterranean Structure"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T04:08:51.155545+00:00"}