{"created":"2023-05-15T12:07:32.564681+00:00","id":12583,"links":{},"metadata":{"_buckets":{"deposit":"93752e31-97f5-4f2f-aaf7-c07940f8c315"},"_deposit":{"created_by":3,"id":"12583","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"12583"},"status":"published"},"_oai":{"id":"oai:iwate-u.repo.nii.ac.jp:00012583","sets":["1523:1670"]},"author_link":["70084","70082","70083"],"item_16_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-01-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"60","bibliographicPageStart":"43","bibliographicVolumeNumber":"15","bibliographic_titles":[{"bibliographic_title":"Advances in polar upper atmosphere research"}]}]},"item_16_date_6":{"attribute_name":"登録日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2010-01-04"}]},"item_16_description_12":{"attribute_name":"Abstract","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_16_publisher_14":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"National Institute of Polar Research"}]},"item_16_rights_18":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"(c) 2001 National Institute of Polar Research"}]},"item_16_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1345-1065","subitem_source_identifier_type":"ISSN"}]},"item_16_text_4":{"attribute_name":"著者(機関)","attribute_value_mlt":[{"subitem_text_value":"Department of Earth and Planetary Physics, University of Tokyo"},{"subitem_text_value":"Faculty of Education, Iwate University"},{"subitem_text_value":"Institute of Industrial Science, (Present Address)Tokyo University of Agriculture University of Tokyo"}]},"item_16_version_type_27":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yamamoto, Takashi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Inoue, Shoshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ozaki, Masao"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-11-14"}],"displaytype":"detail","filename":"apuar-v15p43-60.pdf","filesize":[{"value":"663.7 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"apuar-v15p43-60.pdf","url":"https://iwate-u.repo.nii.ac.jp/record/12583/files/apuar-v15p43-60.pdf"},"version_id":"58fc04a6-61fa-4b15-93eb-784b63c2681d"}]},"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":"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":"16","owner":"3","path":["1670"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-01-04"},"publish_date":"2010-01-04","publish_status":"0","recid":"12583","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":"3","weko_shared_id":-1},"updated":"2023-05-16T11:31:55.047578+00:00"}