{"created":"2023-07-25T11:01:40.174858+00:00","id":3752,"links":{},"metadata":{"_buckets":{"deposit":"fa47b111-5e6d-4d95-83d5-6b80cb48f4ad"},"_deposit":{"created_by":4,"id":"3752","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"3752"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00003752","sets":["1259:1260:1262:524:530"]},"author_link":["5907","5909","5905","5903","5904","5902","5908","5906"],"item_1_alternative_title_5":{"attribute_name":"論文名よみ","attribute_value_mlt":[{"subitem_alternative_title":"VARIATIONS OF CARBON ISOTOPIC RATIO OF ATMOSPHERIC CARBON DIOXIDE OVER JAPAN"}]},"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1992-12","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"148","bibliographicVolumeNumber":"6","bibliographic_titles":[{"bibliographic_title":"Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology"}]}]},"item_1_creator_7":{"attribute_name":"著者名よみ","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"ナカザワ, タカキヨ"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"モリモト, シンジ"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"アオキ, シュンジ"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"タナカ, マサユキ"}],"nameIdentifiers":[{}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"NAKAZAWA, Takakiyo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"MORIMOTO, Shinji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"AOKI, Shuhji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TANAKA, Masayuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_1_description_1":{"attribute_name":"ページ属性","attribute_value_mlt":[{"subitem_description":"P(論文)","subitem_description_type":"Other"}]},"item_1_description_12":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"Carbon dioxide samples collected in the troposphere over Japan during the periods from April 1984 to November 1990 were analyzed for the carbon isotope ratio, δ^<13>C, with a precision of 0.03‰ (one standard deviation). The seasonal cycle of δ^<13>C decreased with increasing height, with a phase delay of about one month between the lower and upper troposphere, which was quite similar to that of the CO_2 concentration. It was found from the observed seasonal cycles of the CO_2 concentration and δ^<13>C that the rate of change in δ^<13>C with respect to the CO_2 concentration is about -0.05‰ per ppmv. This implies that the seasonal CO_2 cycle over Japan is mainly induced by seasonally dependent biospheric activities. However, the air transport from different latitudes is also important for the seasonal CO_2 cycle, especially in the upper troposphere. δ^<13>C decreased secularly at an average rate of about -0.03‰ per year due mainly to combustion of fossil fuels with lighter CO_2 relative to the atmospheric CO_2. Irregular variations of δ^<13>C with the periods of two or three years, superimposed on the secular trend, were also observed; they were almost in phase with these of the CO_2 concentration. From the comparison of both irregular variations, it was found that the cause could primarily attributed to the imbalance in CO_2 exchange between the atmosphere and biosphere in association with climate change, rather than between the atmosphere and oceans.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00003752","subitem_identifier_reg_type":"JaLC"}]},"item_1_publisher_22":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"National Institute of Polar Research"}]},"item_1_source_id_13":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AA10756213","subitem_source_identifier_type":"NCID"}]},"item_1_text_10":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Center for Atmospheric and Oceanic Studies, Faculty of Science, Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"Center for Atmospheric and Oceanic Studies, Faculty of Science, Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"National Institute of Polar Research"},{"subitem_text_language":"en","subitem_text_value":"Center for Atmospheric and Oceanic Studies, Faculty of Science, Tohoku University"}]},"item_1_text_3":{"attribute_name":"記事種別(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"ABSTRACT"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"1992-12-01"}],"displaytype":"detail","filename":"KJ00000767906.pdf","filesize":[{"value":"68.6 kB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000767906","url":"https://nipr.repo.nii.ac.jp/record/3752/files/KJ00000767906.pdf"},"version_id":"6780535e-7119-49f8-9132-887330043979"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"VARIATIONS OF CARBON ISOTOPIC RATIO OF ATMOSPHERIC CARBON DIOXIDE OVER JAPAN","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"VARIATIONS OF CARBON ISOTOPIC RATIO OF ATMOSPHERIC CARBON DIOXIDE OVER JAPAN"}]},"item_type_id":"1","owner":"4","path":["530"],"pubdate":{"attribute_name":"公開日","attribute_value":"1992-12-01"},"publish_date":"1992-12-01","publish_status":"0","recid":"3752","relation_version_is_last":true,"title":["VARIATIONS OF CARBON ISOTOPIC RATIO OF ATMOSPHERIC CARBON DIOXIDE OVER JAPAN"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:29:27.288277+00:00"}