{"created":"2021-03-01T06:00:00.726615+00:00","id":7558,"links":{},"metadata":{"_buckets":{"deposit":"ec237d3f-4c81-4738-8992-d9b21378307a"},"_deposit":{"created_by":188,"id":"7558","owners":[188],"pid":{"revision_id":0,"type":"depid","value":"7558"},"status":"published"},"_oai":{"id":"oai:kitami-it.repo.nii.ac.jp:00007558","sets":["1:87"]},"author_link":["38638","38639","38640","38641","38642","38643","38644"],"item_1646810750418":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_3_biblio_info_186":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"D16313","bibliographicPageEnd":"14","bibliographicPageStart":"1","bibliographicVolumeNumber":"115","bibliographic_titles":[{"bibliographic_title":"JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERE"}]}]},"item_3_description_184":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Dissolved methane concentrations (DM) in 17 lakes were measured as a part of the operations of the 45th Japanese Antarctic Research Expedition in ice-free rocky areas along the eastern coast of Lutzow-Holm Bay (Syowa Oasis) in East Antarctica in the summer of 2003~2004. DM at the surfaces of 14 lakes ranged from the atmospheric equilibrium concentration (about 4 nmol L?1 for fresh water) to 385 nmol L?1. Relatively low DM of less than 50 nmol L?1 were observed at about 60% of the lakes. Many of the lakes (area fraction of 85%) were supersaturated and are thus sources of methane to the atmosphere. The exchange coefficient was calculated using wind speed data at Syowa Station. Area fraction frequency distributions with 4 surface DM ranges were applied to all lakes at Syowa Oasis (110 lakes: total lake area of 9 km2). Extrapolation to the whole Syowa Oasis gives an estimate of total emission of about 1 t-CH4 yr?1. This is the first estimation of methane flux from the surfaces of thawed lakes to the atmosphere in Antarctica. Since methane efflux of about 2 t-CH4 yr?1 from frozen bubbles in lake ice was estimated in our previous study, a total amount of 3 t-CH4 yr?1 would be released to the atmosphere from the lakes during the ice melting season (December ~ January) at Syowa Oasis.","subitem_description_type":"Abstract"}]},"item_3_publisher_212":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Geophysical Union (AGU)","subitem_publisher_language":"en"}]},"item_3_relation_191":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1029/2010JD013822","subitem_relation_type_select":"DOI"}}]},"item_3_select_195":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"author","subitem_select_language":"en"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"SASAKI, Masafumi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"38638","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ENDOH, Noboru","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"38639","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"IMURA, Satoshi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"38640","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"KUDOH, Sakae","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"38641","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"YAMANOUCHI, Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"38642","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"MORIMOTO, Shinji","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"38643","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"HASHIDA, Gen","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"38644","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-11-22"}],"displaytype":"detail","filename":"JGR-#2+(KIT-R).pdf","filesize":[{"value":"879.3 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"JGR-#2+(KIT-R).pdf","url":"https://kitami-it.repo.nii.ac.jp/record/7558/files/JGR-#2+(KIT-R).pdf"},"version_id":"c929c57c-7dce-4500-ab04-02498692b02f"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Air-lake exchange","subitem_subject_scheme":"Other"},{"subitem_subject":"Syowa Oasis","subitem_subject_scheme":"Other"},{"subitem_subject":"East Antarctica","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":"Air-lake exchange of methane during the open water season in Syowa Oasis, East Antarctica","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Air-lake exchange of methane during the open water season in Syowa Oasis, East Antarctica","subitem_title_language":"en"}]},"item_type_id":"3","owner":"188","path":["87"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2013-11-11"},"publish_date":"2013-11-11","publish_status":"0","recid":"7558","relation_version_is_last":true,"title":["Air-lake exchange of methane during the open water season in Syowa Oasis, East Antarctica"],"weko_creator_id":"188","weko_shared_id":-1},"updated":"2025-01-16T03:18:03.450162+00:00"}