{"created":"2023-06-19T07:00:21.598721+00:00","id":1628,"links":{},"metadata":{"_buckets":{"deposit":"f8a924dd-2476-48f8-8209-fd01003304b1"},"_deposit":{"created_by":3,"id":"1628","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"1628"},"status":"published"},"_oai":{"id":"oai:rakuno.repo.nii.ac.jp:00001628","sets":["9:10:23:24"]},"author_link":["3593","3591","3590","3592","3589"],"item_2_biblio_info_9":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2011-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"C7","bibliographicPageEnd":"9","bibliographicPageStart":"1","bibliographicVolumeNumber":"116","bibliographic_titles":[{"bibliographic_title":"Journal of Geophysical Research : Oceans"}]}]},"item_2_description_43":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_2_description_6":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"[1] Oceanic methane (CH_4) was examined in the South Pacific and the Southern Ocean from December 2001 to February 2002. From the oligotrophic South Pacific (10°S) to the Subtropical Front (STF), we observed the maximum concentrations of CH_4 in the subsurface layer which ranged from 2.7 to 3.9 nmol kg^<−1>. South of the STF, higher levels of CH_4 were often detected in both the surface and the subsurface layers. Elevated surface CH_4 concentrations (3.4-6.1 nmol kg^<−1>) south of the STF tended to be higher than those north of the STF. Higher CH_4 were often concomitant with an increase in chlorophyll a levels in the Seasonal Ice Zone (SIZ). Considering that phytoplankton does not generate methane directly, the high CH_4 production probably resulted from the grazing processes of Antarctic krill and/or zooplankton fed on phytoplankton and the subsequent microbial methanogenesis in addition to the aerobic CH_4 production in the water column. Present results showed a good relation between surface CH_4 data (<50 m) and σ_θ between 10°S and the Polar Front (PF), which allow us to provide interpolation/extrapolation schemes for CH_4 concentration and sea-air CH_4 flux in the wide area ([CH_4] = 0.15 σ_θ − 0.98 (RMS = 0.21 nmol kg^<−1>, r = 0.68, n = 49, p < 0.001). The sea-air fluxes estimated during our survey were from 2.4 to 4.9 mol CH_4 km^<−2> d^<−1> between 10°S and the PF (54°S), and from 0.8 to 2.3 mol CH_4 km^<−2> d^<−1> south of the PF, where the sea-air CH_4 flux was largely affected by the wind speed.","subitem_description_type":"Abstract"}]},"item_2_publisher_36":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Geophysical Union"}]},"item_2_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1029/2009JC006089","subitem_relation_type_select":"DOI"}}]},"item_2_source_id_10":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0148-0227","subitem_source_identifier_type":"ISSN"}]},"item_2_version_type_19":{"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":"Yoshida, Osamu"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Inoue, Hisayuki Y."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Watanabe, Shuichi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Suzuki, Koji"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Noriki, Shinichiro"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-09-14"}],"displaytype":"detail","filename":"S-2012-16_yoshida.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"S-2012-16_yoshida.pdf","url":"https://rakuno.repo.nii.ac.jp/record/1628/files/S-2012-16_yoshida.pdf"},"version_id":"6dd8ec25-f697-4f5f-ab6c-339e92065ce4"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"methane","subitem_subject_scheme":"Other"},{"subitem_subject":"Pacific","subitem_subject_scheme":"Other"},{"subitem_subject":"Southern Ocean","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":"Dissolved methane distribution in the South Pacific and the Southern Ocean in austral summer","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Dissolved methane distribution in the South Pacific and the Southern Ocean in austral summer"}]},"item_type_id":"2","owner":"3","path":["24"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-06-04"},"publish_date":"2013-06-04","publish_status":"0","recid":"1628","relation_version_is_last":true,"title":["Dissolved methane distribution in the South Pacific and the Southern Ocean in austral summer"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-19T09:04:18.028931+00:00"}