{"_buckets": {"deposit": "40a66d8c-3c2a-4f0e-8bc3-fdf1e04367af"}, "_deposit": {"created_by": 27, "id": "10042", "owners": [27], "pid": {"revision_id": 0, "type": "depid", "value": "10042"}, "status": "published"}, "_oai": {"id": "oai:nipr.repo.nii.ac.jp:00010042", "sets": []}, "author_link": ["18078", "18083", "18084", "18075", "17943", "17947", "18077", "17939", "17942", "18081", "18082", "17941", "17940", "18080", "18079", "17946", "17949", "17948", "18076", "18074", "17945", "17944"], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2014-06", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "2", "bibliographicPageEnd": "113", "bibliographicPageStart": "96", "bibliographicVolumeNumber": "8", "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": "Understanding geocryological characteristics of frozen sediment, such as cryostratigraphy, ice content, and stable isotope ratio of ground ice, is essential to predicting consequences of projected permafrost thaw in response to global warming. These characteristics determine thermokarst extent and controls hydrological regime-and hence vegetation growth-especially in areas of high latitude; it also yields knowledge about the history of changes in the hydrological regime. To obtain these fundamental data, we sampled and analyzed unfrozen and frozen surficial sediments from 18 boreholes down to 1–2.3 m depth at five sites near Chokurdakh, Russia. Profiles of volumetric ice content in upper permafrost excluding wedge ice volume showed large variation, ranging from 40 to 96%, with an average of 75%. This large amount of ground ice was in the form of ice lenses or veins forming well-developed cryostructures, mainly due to freezing of frost-susceptible sediment under water-saturated condition. Our analysis of geocryological characteristics in frozen ground including ice content, cryostratigraphy, soil mechanical characteristics, organic matter content and components, and water stable isotope ratio provided information to reconstruct terrestrial paleo-environments and to estimate the influence of recent maximum thaw depth, microtopography, and flooding upon permafrost development in permafrost regions of NE Russia.", "subitem_description_type": "Abstract"}]}, "item_10001_description_6": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "　地球温暖化の結果として永久凍土の融解が予測されている。含氷率、地下氷の安定同位体比、層相などの地球雪氷学的な永久凍土に関する情報の把握は、特に高緯度における凍土の融解による地盤沈下（サーモカルスト）の程度、地表面の水文や植生の変化の理解に重要となる。本論文では、北東シベリアのチョクルダ市（ロシア）近郊の５サイトにおいて、18本（1-2.3m）のボアホールから採取した凍土試料を分析した結果を示した。永久凍土上部の体積含氷率は40-96%と大きな変動を示し、平均75%であった。この大きな含氷率は、凍土中におけるアイスレンズや氷脈の発達の良さを反映しており、凍上性のよい土が飽和状態で凍結したことを示している。さらに、他の地球雪氷学的要素の分析結果を総合して、インディギルガ川氾濫原における過去の堆積環境と永久凍土の発達史に関する情報が地中に保持されていることが分かった。 ", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "国立極地研究所"}]}, "item_10001_relation_12": {"attribute_name": "論文ID（NAID）", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "110009794517", "subitem_relation_type_select": "NAID"}}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "10.1016/j.polar.2014.01.005"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://doi.org/10.1016/j.polar.2014.01.005", "subitem_relation_type_select": "DOI"}}]}, "item_10001_source_id_11": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA12240481", "subitem_source_identifier_type": "NCID"}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "18739652", "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": "Iwahana, Go"}], "nameIdentifiers": [{"nameIdentifier": "18074", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Takano, Shinya"}], "nameIdentifiers": [{"nameIdentifier": "18075", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Petrov, Roman E."}], "nameIdentifiers": [{"nameIdentifier": "18076", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Tei, Shunsuke"}], "nameIdentifiers": [{"nameIdentifier": "18077", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Shingubara, Ryo"}], "nameIdentifiers": [{"nameIdentifier": "18078", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Maximov, Trofim C."}], "nameIdentifiers": [{"nameIdentifier": "18079", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Fedorov, Alexander N."}], "nameIdentifiers": [{"nameIdentifier": "18080", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Desyatkin, Alexey R."}], "nameIdentifiers": [{"nameIdentifier": "18081", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Nikolaev, Anatoly N."}], "nameIdentifiers": [{"nameIdentifier": "18082", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Desyatkin, Roman V."}], "nameIdentifiers": [{"nameIdentifier": "18083", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Sugimoto, Atsuko"}], "nameIdentifiers": [{"nameIdentifier": "18084", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Iwahana, Go", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17939", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Takano, Shinya", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17940", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Petrov, Roman E.", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17941", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Tei, Shunsuke", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17942", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Shingubara, Ryo", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17943", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Maximov, Trofim C.", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17944", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Fedorov, Alexander N.", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17945", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Desyatkin, Alexey R.", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17946", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Nikolaev, Anatoly N.", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17947", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Desyatkin, Roman V.", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17948", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Sugimoto, Atsuko", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17949", "nameIdentifierScheme": "WEKO"}]}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Ground ice", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Permafrost", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Indigirka", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Siberia", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Stable isotope", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Chokurdakh", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Ground ice", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Permafrost", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Indigirka", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Siberia", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Stable isotope", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Chokurdakh", "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": "Geocryological characteristics of the upper permafrost in a tundra-forest transition of the Indigirka River Valley, Russia", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Geocryological characteristics of the upper permafrost in a tundra-forest transition of the Indigirka River Valley, Russia"}, {"subitem_title": "Geocryological characteristics of the upper permafrost in a tundra-forest transition of the Indigirka River Valley, Russia", "subitem_title_language": "en"}]}, "item_type_id": "10001", "owner": "27", "path": ["1335"], "permalink_uri": "https://nipr.repo.nii.ac.jp/records/10042", "pubdate": {"attribute_name": "公開日", "attribute_value": "2014-10-14"}, "publish_date": "2014-10-14", "publish_status": "0", "recid": "10042", "relation": {}, "relation_version_is_last": true, "title": ["Geocryological characteristics of the upper permafrost in a tundra-forest transition of the Indigirka River Valley, Russia"], "weko_shared_id": 27}