{"created":"2023-06-19T07:30:43.801411+00:00","id":738,"links":{},"metadata":{"_buckets":{"deposit":"bc977604-9cab-44fe-ac6e-c28be4fd6390"},"_deposit":{"created_by":3,"id":"738","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"738"},"status":"published"},"_oai":{"id":"oai:nodai.repo.nii.ac.jp:00000738","sets":["47:48:176:177"]},"author_link":["3931","3935","3932","3936","3933","3929","3934","3930"],"item_1_biblio_info_12":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueNumber":"1","bibliographicPageEnd":"41","bibliographicPageStart":"35","bibliographicVolumeNumber":"63","bibliographic_titles":[{}]}]},"item_1_description_10":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"大気エアロゾルは地球規模の放射伝達に影響を与えるだけではなく，海洋への微量元素の供給の意味で，海洋生態系の出発点である植物プランクトンに直接影響を与える。北太平洋亜寒帯は海洋生物生産の高い海域として知られているが，その一部は鉄不足によって植物プランクトンによる基礎生産が制限されるHNLC海域である。この海域への鉄の供給源としては，アムール川からオホーツク海を介し北太平洋に流れ込む海洋経路と，大陸から季節風によって大気から運搬される経路がある。近年，黄砂の増大が報告されており，大陸から季節風によって運搬される鉄の北太平洋への供給を見積もることは今後の海洋生物生産を推定するために有意義なことである。本研究は，その一部を担うため，網走上空のエアロゾル中の全鉄濃度を2008年から2014年までの7年間，水溶性鉄濃度を2015年までの8年間，それぞれ粗大粒子（≧2.1µm）と微細粒子（＜2.1µm）に分けて観測した。その結果，粗大粒子中の全鉄濃度は7年間平均が210.5µg m－3 day－1，最も平均濃度が高かった年は2010年で336.4µgm－3 day－1，平均濃度が低かった年は2014年で52.1µg m－3 day－1だった。粗大粒子中の水溶性鉄濃度は8年間平均が1.30µg m－3 day－1，最も平均濃度が高かった年は2012年の2.01µg m－3 day－1，平均濃度が低かったのは2013年の0.68µg m－3 day－1だった。微小粒子中の7年間平均全鉄濃度は99.4µg m－3 day－1，平均濃度が高かった年は2010年で153.0µg m－3 day－1，平均濃度が低かった年は2014年で21.4µg m－3 day－1だった。微小粒子中の水溶性鉄濃度は8年間平均が2.93µg m－3 day－1，最も平均濃度が高かった年は2012年の4.02µg m－3 day－1，平均濃度が低かったのは2013年の2.17µg m－3 day－1だった。全観測期間を通して全鉄濃度は減少傾向にあるが，水溶性鉄濃度は粗大粒子は増加傾向にあり，微小粒子では横ばいだった。大気エアロゾルから北太平洋へ供給される水溶性鉄は，植物プランクトンの成長に直接影響を与えるものであり，この研究により増加傾向にあることが判明した。","subitem_description_type":"Other"}]},"item_1_description_11":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"Atmospheric aerosol not only affects global earth radiation balance but also the supply of trace metal to the ocean, which directly affects the phytoplankton growth, the bottom production of the marine ecosystem.  The subarctic North Pacific is known as a higher productivity area of marine organisms, but a part of it is the HNLC (High Nutrient Low Chlorophyll) area where primary production is limited due to iron deficiency.  There are two routes as a source of iron supply to the subarctic North Pacific.  One of the routes is an oceanic route discharged from the Amur River through the Sea of Okhotsk to the North Pacific Ocean and the other route is the atmospheric route carried by the monsoon wind from the Asian continent.  In recent years, an increase in yellow sand has been reported, and estimating the supply of iron transported by the seasonal wind from the continent to the North Pacific is valuable for estimating future marine biological production.  In this research, the total iron concentration in the aerosol over the Abashiri area was measured for seven years from 2008 to 2014 and the water soluble iron concentration in the aerosol was measured during eight years from 2008 to 2015, and each iron concentration was measured separately for coarse particles (≧2.1µm) and fine particles (＜2.1µm).  The result showed the total iron concentration in the coarse particles was 210.5µg m－3 day－1 on average for seven years, 336.4µg m－3 day－1 for 2010 when the average concentration was the highest and 52.1µg m－3 day－1 for 2014 when the average concentration was lowest.  The water soluble iron concentration in the coarse particles was 1.30µg m－3 day－1 on average for eight years, 2.01µg m－3 day－1 for 2012 when the average concentration was the highest and 0.68µg m－3 day－1 for 2013 when the average concentration was lowest.  The total iron concentration in the fine particles was 99.4µg m－3 day－1 on average for seven years, 153.0µg m－3 day－1 for 2010 when the average concentration was the highest and 21.4µg m－3 day－1 for 2014 when the average concentration was lowest.  The water soluble iron concentration in the fine particles was 2.93µg m－3 day－1 on average for eight years, 4.02µg m－3 day－1 for 2015 when the average concentration was the highest and 2.17µg m－3 day－1 for 2013 when the average concentration was lowest.  Although the total iron concentration was on a decreasing trend throughout the whole observation period, the concentration of the water-soluble iron in coarse particles was increasing and the water-soluble iron concentration in fine particles remained flat.  In conclusion, the concentration of water-soluble iron in aerosol particles transported to the North Pacific via the atmosphere, which directly affects primary production, is slightly increasing.","subitem_description_type":"Other"}]},"item_1_description_13":{"attribute_name":"レポート・講演番号","attribute_value_mlt":[{"subitem_description":"E","subitem_description_type":"Other"}]},"item_1_description_15":{"attribute_name":"表示順","attribute_value_mlt":[{"subitem_description":"4","subitem_description_type":"Other"}]},"item_1_description_2":{"attribute_name":"ページ属性","attribute_value_mlt":[{"subitem_description":"P","subitem_description_type":"Other"}]},"item_1_description_8":{"attribute_name":"記事種別(日)","attribute_value_mlt":[{"subitem_description":"論文","subitem_description_type":"Other"}]},"item_1_description_9":{"attribute_name":"記事種別(英)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_1_source_id_1":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00164184","subitem_source_identifier_type":"NCID"}]},"item_1_text_6":{"attribute_name":"著者所属(日)","attribute_value_mlt":[{"subitem_text_value":"東京農業大学生物産業学部アクアバイオ学科"},{"subitem_text_value":"東京農業大学大学院生物産業学研究科アクアバイオ専攻"},{"subitem_text_value":"東京農業大学生物産業学部アクアバイオ学科"},{"subitem_text_value":"東京農業大学生物産業学部アクアバイオ学科"}]},"item_1_text_7":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Department of Aquatic Bioscience, Faculty of Bioindustry, Tokyo University of Agriculture"},{"subitem_text_language":"en","subitem_text_value":"Department of Aquatic Bioscience, Graduate school of Bioindustry, Tokyo University of Agriculture"},{"subitem_text_language":"en","subitem_text_value":"Department of Aquatic Bioscience, Faculty of Bioindustry, Tokyo University of Agriculture"},{"subitem_text_language":"en","subitem_text_value":"Department of Aquatic Bioscience, Faculty of Bioindustry, Tokyo University of Agriculture"}]},"item_1_title_3":{"attribute_name":"論文名よみ","attribute_value_mlt":[{"subitem_title":"ホッカイドウ　アバシリ　チイキ　ジョウクウ　ノ　エアロゾル　チュウ　テツノウド　ノ　2008ネン　カラ　2015ネン　ノ　ネンヘンドウ"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"朝隈, 康司"},{"creatorName":"アサクマ, コウジ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3929","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"江島, 達郎"},{"creatorName":"エジマ, タツロウ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3930","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"土屋, 沙菜恵"},{"creatorName":"ツチヤ, サナエ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3931","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"田邊, かりん"},{"creatorName":"タナベ, カリン","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3932","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Asakuma, Koji","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3933","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ejima, Taturo","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3934","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tsutiya, Sanae","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3935","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tanabe, Karin","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3936","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":"2018-07-31"}],"displaytype":"detail","filename":"6301_035.pdf","filesize":[{"value":"947.5 kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"63_35","url":"https://nodai.repo.nii.ac.jp/record/738/files/6301_035.pdf"},"version_id":"aed9447d-ccaf-4964-941a-9918a6a98358"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"エアロゾル","subitem_subject_scheme":"Other"},{"subitem_subject":"鉄供給","subitem_subject_scheme":"Other"},{"subitem_subject":"HNLC海域","subitem_subject_scheme":"Other"},{"subitem_subject":"オホーツク海","subitem_subject_scheme":"Other"},{"subitem_subject":"北太平洋亜寒帯","subitem_subject_scheme":"Other"},{"subitem_subject":"Atmospheric aerosol","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Iron supply","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"HNLC area","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Sea of Okhotsk","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Subarctic North Pacific","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"北海道網走地域上空のエアロゾル中鉄濃度の2008年から2015年の年変動","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"北海道網走地域上空のエアロゾル中鉄濃度の2008年から2015年の年変動"},{"subitem_title":"Annual Variation of Iron Concentration in Aerosol over Abashiri Area, Hokkaido from 2008 to 2015","subitem_title_language":"en"}]},"item_type_id":"1","owner":"3","path":["177"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-07-31"},"publish_date":"2018-07-31","publish_status":"0","recid":"738","relation_version_is_last":true,"title":["北海道網走地域上空のエアロゾル中鉄濃度の2008年から2015年の年変動"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-19T07:47:28.096581+00:00"}