{"created":"2023-07-25T11:06:42.208510+00:00","id":10185,"links":{},"metadata":{"_buckets":{"deposit":"9e87c7ca-5cf7-47d2-95dc-0a2775d18ebc"},"_deposit":{"created_by":17,"id":"10185","owners":[17],"pid":{"revision_id":0,"type":"depid","value":"10185"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00010185","sets":[]},"author_link":["19333","19334","19338","18291","19332","19328","19331","19337","19336","19330","19335","19340","19329","19339"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"441","bibliographicPageStart":"431","bibliographicVolumeNumber":"4","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":"To investigate downward ionospheric-penetration characteristics of VLF (several hundred Hz to 17.8 kHz) whistler-mode waves, we conducted simultaneous observations (in 2006) of natural VLF waves using both ground stations in Antarctica and the Japanese Akebono satellite. The ground-based and satellite observations included an interesting event for which both observed similar VLF waves. In this study, we theoretically calculate down-going whistler-mode wave propagation based on ground-satellite observations using the full-wave analysis. In a case study, the observed wave-normal angles were approximately 140-160 degrees for a dayside chorus event on 15 March 2006. The theoretical calculation showed that the wave-normal angles for ionosphericpenetration should be around 155.6 degrees, with its angular width of approximately 2 degrees. Moreover, the wave-energy loss due to ionospheric penetration is estimated at 20.4 dB based on our theoretical calculation, in accordance with the observed 17-19 dB.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"ホイスラモード波の電離層透過特性を詳細に調べるために、2006年南極において地上とあけぼの衛星によるVLF（数百Hz～17.8 kHz）帯の自然電磁波動の同時観測を行った。この観測において、地上とあけぼの衛星で波動強度の周波数特性がよく似た自然VLF波動のイベントを得た。本研究では、この同時観測結果に基づきfull-wave解析を用いることによって理論的にホイスラモードの下降伝搬を計算している。事例解析として2006年3月15日のコーラスの同時観測イベントに対して、あけぼの衛星で観測された波動伝搬ベクトルは140～160度に分布した。一方で理論計算では、電離層透過のための波動伝搬ベクトルは155.6度、その角度幅約2度になる必要があるという結果を得た。さらに、電離層透過に対する波動エネルギーの減衰は、観測値の17～19 dBに一致して理論計算では20.4 dBと推定された。","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":"110007721874","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.2010.04.008"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2010.04.008","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":"Ozaki, M."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yagitani, S."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nagano, I."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kasahara, Y."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamagishi, H."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Satom, N."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kadokura, A."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ozaki, M.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yagitani, S.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nagano, I.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kasahara, Y.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamagishi, H.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Satom, N.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kadokura, A.","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Downward ionospheric penetration","subitem_subject_scheme":"Other"},{"subitem_subject":"VLF whistler-mode waves","subitem_subject_scheme":"Other"},{"subitem_subject":"Akebono satellite","subitem_subject_scheme":"Other"},{"subitem_subject":"Full-wave analysis","subitem_subject_scheme":"Other"},{"subitem_subject":"Downward ionospheric penetration","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"VLF whistler-mode waves","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Akebono satellite","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Full-wave analysis","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":"Simultaneous ground-based and satellite observations of natural VLF waves in Antarctica: A case study of downward ionospheric penetration of whistler-mode waves","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Simultaneous ground-based and satellite observations of natural VLF waves in Antarctica: A case study of downward ionospheric penetration of whistler-mode waves"},{"subitem_title":"Simultaneous ground-based and satellite observations of natural VLF waves in Antarctica: A case study of downward ionospheric penetration of whistler-mode waves","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"17","path":["1356"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-10-16"},"publish_date":"2014-10-16","publish_status":"0","recid":"10185","relation_version_is_last":true,"title":["Simultaneous ground-based and satellite observations of natural VLF waves in Antarctica: A case study of downward ionospheric penetration of whistler-mode waves"],"weko_creator_id":"17","weko_shared_id":17},"updated":"2023-07-25T14:22:13.820898+00:00"}