{"created":"2023-07-25T11:11:58.432650+00:00","id":16872,"links":{},"metadata":{"_buckets":{"deposit":"cfd0aeb5-872e-4461-8730-e988f5101f1c"},"_deposit":{"created_by":26,"id":"16872","owners":[26],"pid":{"revision_id":0,"type":"depid","value":"16872"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00016872","sets":["1259:1267:2084"]},"author_link":["73960","73959"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-12","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"100705","bibliographicVolumeNumber":"30","bibliographic_titles":[{},{"bibliographic_title":"Polar Science","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Using the Expendable CTDs (XCTDs) collected along two transects between Africa and Antarctica during 1–11 January (Cape Town−Prydz Bay, track-2) and 12-21 April 2018 (Prydz Bay−Cape Town, track-1), frontal locations are delineated and compared with the satellite-based maps of absolute dynamic topography (MADT). The MADT maps revealed that the intensity of the Agulhas Current (AC) was 1.3 ms−1 during both periods; the southernmost limit of the Agulhas Retroflection (AR) was traced to 40°S, 20.5°E/42°S, 15°E on track-1/track-2. The vertical sections of temperature and salinity revealed the Agulhas anticyclonic eddy (AAE) whose core was detected at ~38.4°S/~37.6°S on track-1/track-2. The cumulative transport across track-2 was 50% higher than across track-1 which is attributed to deep-sea upwelling and its subsequent transport across the track-2 to the south of 50°S. On both transects, the winter water was detected up to 50°S in the upper 100 m. The highest AC transport in the upper 1000 m was detected at 37.75°S/38.28°S on track-1/track-2, which was related to the flow characteristics of the AC. The eddies that detached from the AC system transported nutrient-rich water southward which mixed with the ambient water resulting in peak chlorophyll-a concentration (Chl-a) exceeding 0.5 mg/m3 to the north of 42°S on both tracks. The shallow topographic features such as the Ob-Lena rise (54°S) and the southwest Indian Ridge (44°−46°S) also enhanced Chl-a by 39% on track-2.\n\n","subitem_description_type":"Abstract"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2021.100705"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.polar.2021.100705","subitem_relation_type_select":"DOI"}}]},"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":"Luis, Alvarinho J.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Lotlikar, Vinit R.","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Southern ocean","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Hydrological fronts","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Baroclinic transport","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Water mass","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Chlorophyll-a","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":"Hydrographic characteristics along two XCTD sections between Africa and Antarctica during austral summer 2018","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Hydrographic characteristics along two XCTD sections between Africa and Antarctica during austral summer 2018"},{"subitem_title":"Hydrographic characteristics along two XCTD sections between Africa and Antarctica during austral summer 2018","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"26","path":["2084"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-05-20"},"publish_date":"2022-05-20","publish_status":"0","recid":"16872","relation_version_is_last":true,"title":["Hydrographic characteristics along two XCTD sections between Africa and Antarctica during austral summer 2018"],"weko_creator_id":"26","weko_shared_id":-1},"updated":"2023-07-25T12:49:09.371143+00:00"}