{"created":"2023-07-25T11:03:26.522097+00:00","id":6330,"links":{},"metadata":{"_buckets":{"deposit":"7bdcbeb4-c68a-4541-88f9-561f21a0af30"},"_deposit":{"created_by":4,"id":"6330","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"6330"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00006330","sets":["1259:1260:1261:802:805"]},"author_link":["35805","10166","35806"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-09","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"60","bibliographicPageStart":"43","bibliographicVolumeNumber":"15","bibliographic_titles":[{"bibliographic_title":"Advances in polar upper atmosphere research"}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yamamoto,Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Inoue, Shoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ozaki, Masao","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_1_description_1":{"attribute_name":"ページ属性","attribute_value_mlt":[{"subitem_description":"P(論文)","subitem_description_type":"Other"}]},"item_1_description_12":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"This paper proposes that the outer boundary of the \"firmly-closed\" region should be represented by field lines with the adiabaticity parameter, K, equal to unity at the equator, where K^2 is the ratio between the radius of the field-line curvature and the Larmor radius of an ion with 1 keV of energy. Just outside the boundary where K = 1, plasma particles (primarily ions) can be nonadiabatically accelerated in the presence of the dawn-to-dusk electric field. An inwardly convecting flux tube will attain the maximum content of nonadiabatically accelerated particles when it passes the K - 1 boundary. Thus, the K = 1 boundary outlines the region of the plasma population with a maximum content of nonadiabatically accelerated particles. In addition, the field lines with K = 1 are shown to have a minimum field strength of roughly 1 nT at the equator. From this fact, a field line with k < 1 may not be considered as being \"firmly-closed\" in the sense that such a field line may easily merge with an interplanetary field line. The outer boundary of the nightside firmly-closed region in the Tsyganenko model has an IMF Bz dependence that is consistent with observations. Moreover, this boundary is found to be \"distorted\", favoring the generation of region 1 field-aligned currents.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00006330","subitem_identifier_reg_type":"JaLC"}]},"item_1_publisher_22":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"National Institute of Polar Research"}]},"item_1_source_id_13":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AA11397422","subitem_source_identifier_type":"NCID"}]},"item_1_text_10":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Department of Earth and Planetary Physics, University of Tokyo/Faculty of Education, Iwate University/Institute of Industrial Science, University of Tokyo"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2001-09-01"}],"displaytype":"detail","filename":"KJ00000048070.pdf","filesize":[{"value":"2.1 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000048070","url":"https://nipr.repo.nii.ac.jp/record/6330/files/KJ00000048070.pdf"},"version_id":"1de9f521-4d9a-48d7-9c83-5ac7dbc1f914"}]},"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":"Distortion of the nightside boundary of the \"firmly-closed\" region in the 1996 Tsyganenko magnetic field model","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Distortion of the nightside boundary of the \"firmly-closed\" region in the 1996 Tsyganenko magnetic field model"}]},"item_type_id":"1","owner":"4","path":["805"],"pubdate":{"attribute_name":"公開日","attribute_value":"2001-09-01"},"publish_date":"2001-09-01","publish_status":"0","recid":"6330","relation_version_is_last":true,"title":["Distortion of the nightside boundary of the \"firmly-closed\" region in the 1996 Tsyganenko magnetic field model"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:02:58.249107+00:00"}