{"created":"2021-03-01T06:06:52.061215+00:00","id":3126,"links":{},"metadata":{"_buckets":{"deposit":"9972faff-cb97-4b3c-ab67-9d644ef3c64c"},"_deposit":{"id":"3126","owners":[],"pid":{"revision_id":0,"type":"depid","value":"3126"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00003126","sets":["453:454","503:504:505"]},"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Snow hardness measurement using a digital load-gauge"}]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"5","bibliographicPageEnd":"449","bibliographicPageStart":"441","bibliographicVolumeNumber":"63","bibliographic_titles":[{"bibliographic_title":"雪氷"},{"bibliographic_title":"雪氷","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"積雪の硬度は，表層雪崩のすべり面となる弱層を検出する上で目安になるため，雪崩災害調査などで迅速かつ細かく簡便に測定できる方法の必要性が高い．そこで新しい積雪硬度計として提案したデジタル式荷重測定器（プッシュゲージ）について，測定方法の検討を行った．プッシュゲージは円板状のアタッチメントを積雪断面に等速で1～2cm押し込み，抵抗力の最大値を測定する．測定値を既存の木下式高度計やラムゾンデと比較した結果，プッシュゲージは積雪用高度計として使用可能であるのみならず，特に薄くて高度の小さな弱層の検出に適していることが示された．アタッチメントの径が小さい場合には測定値が大きくなるが，直径を約8mm以上にすると，大きさによらず一定の硬度が得られるとみなせることがわかった．また雪質や粒径を限定した場合に乾き雪の硬度が密度の4乗に比例するという関係式が，地域によらず成り立つことが確かめられた．","subitem_description_type":"Abstract"},{"subitem_description":"A new method of snow-hardness measurement using a handy-type digital load-gauge (push-gauge) is demonstrated. The push-gauge can measure the maximum strength of a snow layer when it is destroyed by the circular plate attachment pushed horizontally into the side of the pit. Snow-hardness measured with the push-gauge was compared with measurements with a rammsonde and Kinosita-type hardness meter. The measured values agreed with each other, confirming that the push-gauge can be used as a snow-hardness meter. It is especially useful to detect thin weak layers because it can measure snow-hardness at very small space intervals. The measured hardness can be regarded as constant if the diameter of circular plate is about 8mm or more. It was confirmed by data in various regions that the hardness of a fine-grained compacted snow layer with grain-sizes less than 0.5mm is highly correlated with the foourth power of the snow density.","subitem_description_type":"Abstract"}]},"item_5_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"40992","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Takeuchi, Yukari"}]},{"nameIdentifiers":[{"nameIdentifier":"40993","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Nohguchi, Yasuaki"}]},{"nameIdentifiers":[{"nameIdentifier":"40994","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Kawashima, Katsuhisa"}]},{"nameIdentifiers":[{"nameIdentifier":"40995","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Izumi, Kaoru"}]}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本雪氷学会"}]},"item_5_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00131221","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03731006","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"竹内, 由香里"}],"nameIdentifiers":[{"nameIdentifier":"40988","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"納口, 恭明"}],"nameIdentifiers":[{"nameIdentifier":"40989","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"河島, 克久"}],"nameIdentifiers":[{"nameIdentifier":"40990","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"和泉, 薫"}],"nameIdentifiers":[{"nameIdentifier":"40991","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":"2019-07-30"}],"displaytype":"detail","filename":"63(5)_441-449.pdf","filesize":[{"value":"741.4 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"63(5)_441-449.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/3126/files/63(5)_441-449.pdf"},"version_id":"f12359ca-cbc1-4347-b51f-b16720918020"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"硬度計","subitem_subject_scheme":"Other"},{"subitem_subject":"プッシュゲージ","subitem_subject_scheme":"Other"},{"subitem_subject":"積雪硬度分布","subitem_subject_scheme":"Other"},{"subitem_subject":"弱層の検出","subitem_subject_scheme":"Other"},{"subitem_subject":"積雪密度","subitem_subject_scheme":"Other"},{"subitem_subject":"hardness meter","subitem_subject_scheme":"Other"},{"subitem_subject":"push gauge","subitem_subject_scheme":"Other"},{"subitem_subject":"snow hardness distribution","subitem_subject_scheme":"Other"},{"subitem_subject":"detection of weak layer","subitem_subject_scheme":"Other"},{"subitem_subject":"snow density","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"デジタル式荷重測定器を利用した積雪の硬度測定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"デジタル式荷重測定器を利用した積雪の硬度測定"},{"subitem_title":"デジタル式荷重測定器を利用した積雪の硬度測定","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","505"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-08-11"},"publish_date":"2009-08-11","publish_status":"0","recid":"3126","relation_version_is_last":true,"title":["デジタル式荷重測定器を利用した積雪の硬度測定"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:36:16.754608+00:00"}