{"created":"2023-07-25T09:58:59.882363+00:00","id":2217,"links":{},"metadata":{"_buckets":{"deposit":"87add57a-e328-494a-84e0-9480b5765868"},"_deposit":{"created_by":15,"id":"2217","owners":[15],"pid":{"revision_id":0,"type":"depid","value":"2217"},"status":"published"},"_oai":{"id":"oai:oacis.repo.nii.ac.jp:00002217","sets":["187:189:338","187:190:536","41:336","70:537","70:538","70:539"]},"author_link":["3461","3459","3460","2793","3458"],"item_3_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-01-11","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"74","bibliographicPageStart":"55","bibliographicVolumeNumber":"77","bibliographic_titles":[{"bibliographic_title":"Journal of Oceanography"}]}]},"item_3_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"While the Kuroshio is known to be a nutrient stream, as these nutrients are in dark subsurface layers, they are not immediately available for photosynthesis unless they are supplied to the sunlit surface layers. Recent microstructure observations have revealed that strong diapycnal mixing caused by the Kuroshio flowing over topographic features and double diffusion in the subsurface layers of the Kuroshio.\nHowever, it is still unclear how much nutrient flux can be provided by these microscale mixing processes. In this study, using an autonomous microstructure float and nutrient samplings, nutrient flux caused by the Kuroshio over the Izu Ridge, and that caused by double diffusion in the Kuroshio Extension are quantified. The nitrate diffu-sive flux is estimated to be >1mmolNm−2day−1 over a distance, 20–30 km near the Izu Ridge and >0.1mmolNm−2day−1 , \nwhich persists further downstream direction over 100 km along the Kuroshio, increasing the subsurface chlorophyll-a concen-tration in the region 200 km downstream. The double-diffusion-induced nitrate flux is estimated to be 1-10mmolNm−2day−1 in the pycnostad 26–26.5kgm−3 of the Kuroshio Extension, suggesting that whether this double-diffusion-induced nutrient \nflux in the subsurface layers can ultimately contribute to surface primary production depends on additional eddy up- and northward fluxes."}]},"item_3_description_63":{"attribute_name":"研究課題番号","attribute_value_mlt":[{"subitem_description":"19H01965"},{"subitem_description":"16H01590"},{"subitem_description":"18H04914"}]},"item_3_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"The Oceanographic Society of Japan"},{"subitem_publisher":"Springer Nature"}]},"item_3_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1007/s10872-020-00582-2","subitem_relation_type_select":"DOI"}}]},"item_3_relation_13":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Publisher's Version/PDF (OpenAccess)"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1007/s10872-020-00582-2","subitem_relation_type_select":"DOI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"KAKEN研究課題: 二台同時自由落下曳航観測手法を用いたマルチスケール混合現象とその影響に関する研究"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/ja/search/?kw=19H01965","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"KAKEN研究課題: 黒潮源流が陸棚縁で生成する近慣性内部波と躍層における鉛直混合メカニズムの解明"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/ja/grant/KAKENHI-PUBLICLY-16H01590/","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"KAKEN研究課題: 沖縄トラフ・トカラ海峡で高鉛直波数近慣性波シアと乱流が卓越するメカニズム"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/ja/grant/KAKENHI-PUBLICLY-18H04914/","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"研究代表者: 長井 健容 (東京海洋大学) "}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://nrid.nii.ac.jp/ja/nrid/1000090452044/","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"The Oceanographic Society of Japan"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaiyo-gakkai.jp/jos/","subitem_relation_type_select":"URI"}}]},"item_3_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0916-8370","subitem_source_identifier_type":"ISSN"}]},"item_3_subject_62":{"attribute_name":"件名","attribute_value_mlt":[{"subitem_subject":"科学研究費研究成果"}]},"item_3_subject_64":{"attribute_name":"科学研究費研究課題","attribute_value_mlt":[{"subitem_subject":"二台同時自由落下曳航観測手法を用いたマルチスケール混合現象とその影響に関する研究"},{"subitem_subject":"Resolving multi-scale mixing processes and their impacts using a twin tow-yo microstructure profiling system"},{"subitem_subject":"黒潮源流が陸棚縁で生成する近慣性内部波と躍層における鉛直混合メカニズムの解明"},{"subitem_subject":"Near-inertial wave generations and diapycnal mixing in the Kuroshio origin regions near the continental shelf"},{"subitem_subject":"沖縄トラフ・トカラ海峡で高鉛直波数近慣性波シアと乱流が卓越するメカニズム"},{"subitem_subject":"Mechanisms of dominant vertical high wavenumber near inertial shear and strong turbulence in the Okinawa Trough and the Tokara Strait"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nagai, Takeyoshi"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"Gandy Maria Rosales Quintana"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Gloria Silvana Durán Gómez"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hashihama, Fuminori"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"Komatsu, Kosei"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"The Kuroshio","subitem_subject_scheme":"Other"},{"subitem_subject":"Turbulence","subitem_subject_scheme":"Other"},{"subitem_subject":"Double-Diffusion","subitem_subject_scheme":"Other"},{"subitem_subject":"Izu-Ridge","subitem_subject_scheme":"Other"},{"subitem_subject":"The Kuroshio Extension","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"}]},"item_title":"Elevated turbulent and double-diffusive nutrient flux in the Kuroshio over the Izu Ridge and in the Kuroshio Extension","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Elevated turbulent and double-diffusive nutrient flux in the Kuroshio over the Izu Ridge and in the Kuroshio Extension"}]},"item_type_id":"3","owner":"15","path":["336","338","536","537","538","539"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-09-21"},"publish_date":"2021-09-21","publish_status":"0","recid":"2217","relation_version_is_last":true,"title":["Elevated turbulent and double-diffusive nutrient flux in the Kuroshio over the Izu Ridge and in the Kuroshio Extension"],"weko_creator_id":"15","weko_shared_id":-1},"updated":"2023-07-25T10:34:07.056946+00:00"}