{"created":"2023-07-25T11:07:18.690577+00:00","id":11044,"links":{},"metadata":{"_buckets":{"deposit":"f4cdd565-912e-4593-96f9-bd2ae7fc3325"},"_deposit":{"created_by":27,"id":"11044","owners":[27],"pid":{"revision_id":0,"type":"depid","value":"11044"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00011044","sets":[]},"author_link":["25783","25787","25785","25786","25784"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"42","bibliographicPageStart":"36","bibliographicVolumeNumber":"10","bibliographic_titles":[{"bibliographic_title":"Polar Science"},{"bibliographic_title":"Polar Science","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We analyze snow-pit samples collected in May 2015 at the South East Dome (SE Dome) on the Greenland ice sheet. The analysis includes high-resolution records of δD and δ18O, as well as the major ions, CH3SO3−, Cl−, NO3−, SO42−, Na+, NH4+, K+, Ma2+, and Ca2+. We find that the 3.55-m snow pit recorded temperature and aerosol proxies back to summer or autumn of 2014. This indicates a higher accumulation rate than those at other major drilling sites in Greenland. Due to this high accumulation rate, ion concentrations except Na+ are lower than those typical of the central Greenland ice sheet. Concerning seasonal variability, the Na+, Cl−, Ca2+, Mg2+, and NO3− vary similarly to other sites in Greenland, with the Na+ and Cl− peaking in winter to early spring, Ca2+ peaking in spring, Mg2+ peaking in winter to spring, and NO3− towards a peak in summer while showing smaller peaks in winter to spring. The NH4+ increased in spring, and SO42− increased in autumn to winter at SE Dome. On the other hand, the seasonal trend in the Cl−/Na+ ratio differs from those in the inland region. As we did not fully recover one seasonal cycle, some seasonal peaks may have been missed.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"2015年5月にグリーンランド氷床南東ドームにおいて、3.55 mの積雪ピットを掘り、積雪断面観測および積雪試料の採取を行った。採取した雪試料を用い、水安定同位体比（δD、δ18O）と主要イオン濃度（CH3SO3−、Cl−、NO3−、SO42−、Na+、NH4+、K+、Ma2+、Ca2+）を分析した。断面観測と化学分析の結果から、3.55 mの積雪は2014年の夏〜秋以降に涵養したものであることがわかった。この涵養量はグリーンランド内陸の主な氷床コア掘削地点よりも高い。高い涵養量によって希釈されたため、Na+を除くイオン濃度はグリーンランド内陸よりも低かった。Na+、Cl−、Ca2+、Mg2+、NO3−の季節変動は、グリーンランド内陸と似ており、Na+とCl−は冬〜初春、Ca2+は春、Mg2+は冬〜春にピークをもつことがわかった。NO3−は夏に向かって濃度が高くなり、冬〜春にも小さなピークがあった。NH4+は春に増加し、SO42−は秋〜冬にかけて増加した。一方、Cl−/Na+の季節変動は他のグリーンランド内陸と異なることがわかった。ただし、我々が観察した積雪ピットは1年分の季節変動を追える深度に達していなかった可能性が高く、見逃したシグナルがあるかもしれない。","subitem_description_type":"Other"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2016.01.003"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2016.01.003","subitem_relation_type_select":"DOI"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1873-9652 ","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":"Ikumi Oyabu","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"25783","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sumito Matoba","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"25784","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tetsuhide Yamasaki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"25785","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Moe Kadota","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"25786","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yoshinori Iizuka","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"25787","nameIdentifierScheme":"WEKO"}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Snow chemistry","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Greenland","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Seasonality","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Ion species","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Glaciology","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":"Seasonal variations in the major chemical species of snow at the South East Dome in Greenland","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Seasonal variations in the major chemical species of snow at the South East Dome in Greenland"},{"subitem_title":"Seasonal variations in the major chemical species of snow at the South East Dome in Greenland","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"27","path":["1493"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-03-16"},"publish_date":"2016-03-16","publish_status":"0","recid":"11044","relation_version_is_last":true,"title":["Seasonal variations in the major chemical species of snow at the South East Dome in Greenland"],"weko_creator_id":"27","weko_shared_id":27},"updated":"2023-07-25T16:19:37.362948+00:00"}