{"created":"2023-03-31T02:42:55.052903+00:00","id":5806,"links":{},"metadata":{"_buckets":{"deposit":"b3c1c7e2-0b14-46e8-9426-13f4c8916128"},"_deposit":{"id":"5806","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"5806"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00005806","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"99","bibliographicPageStart":"89","bibliographicVolumeNumber":"42","bibliographic_titles":[{"bibliographic_title":"日本水文科学会誌","bibliographic_titleLang":"ja"},{"bibliographic_title":"日本水文科学会誌","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"本研究では，低温室における積雪の水分特性曲線（WRC）の測定事例を紹介するとともに積雪内部の水分移動のモデル化に向け，土壌理論を積雪に応用する際の問題点に関しても議論を行った。まず，積雪のWRC が砂のWRC と似た挙動をすることを示し，土壌分野のモデルが積雪のWRC に適応可能であることを示した。また積雪のWRC の粒径（d）と乾き密度（ρ<SUB>dry</SUB>）依存性に関しても議論を行った。それらを踏まえ積雪のWRC に，土壌分野で広く使用されているBrooks - Corey モデル（BC モデル）とvan Genuchten モデル（VG モデル）を適用した。その結果, 両モデルとも積雪のWRC をよく再現するが，BC モデルよりもVG モデルのほうが測定された積雪のWRC をよく再現することを示した。次に土壌分野の水分移動特性モデルを積雪の不飽和透水係数（K）のモデル化に応用する際の問題点として，WRC のモデル化の際に使用するモデルの選択によってサクション（h）と不飽和透水係数（K）との関係式が大きく異なること，Kのモデル内の連結結合係数（<I>l</I>）の与え方によって，h とK の関係が大きく変わるので，積雪に適した<I>l</I> の取り扱い方を明らかにする必要があることを指摘した。","subitem_description_language":"ja","subitem_description_type":"Other"},{"subitem_description":"This paper introduces recent studies that measured the water retention curve (WRC) of snow in a cold laboratory. We then discuss the possibility of modeling the unsaturated hydraulic conductivity (K) of snow based on soil physics theories. Recent studies reported the dependence of the WRC of snow on both the sample grain size and density. In addition, they pointed out many similarities between the WRC of snow and sand, and then modeled the WRC of snow using two standard soil physics models, the Brooks and Corey model (BC model) and the van Genuchten model (VG model). Based on a comparison of the results of the models, they concluded that the VG model reconstructed the distribution of the measured WRC of snow better than the BC model did, although both models were in good agreement with the experimental WRC for snow. The modeled relationship between suction and the K of snow strongly depends on the model chosen for the WRC and on the value of the pore-connectivity coefficient (<I>l</I>) in the model. Therefore, the eventual determination of the hydraulic properties of snow will require future studies of the dependence of <I>l</I> on snow characteristics.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本水文科学会","subitem_publisher_language":"ja"},{"subitem_publisher":"THE JAPANESE ASSOCIATION OF HYDOROLOGICAL SCIENCES","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.4145/jahs.42.89"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1883-7166","subitem_source_identifier_type":"EISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"山口悟","creatorNameLang":"ja"},{"creatorName":"山口悟","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"渡辺晋生","creatorNameLang":"ja"},{"creatorName":"渡辺晋生","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"石井吉之","creatorNameLang":"ja"},{"creatorName":"石井吉之","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_title":"積雪内部の水分移動に関する実験的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"積雪内部の水分移動に関する実験的研究","subitem_title_language":"ja"},{"subitem_title":"Investigation of water movement through snowcover based on cold laboratory experiments","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"1","path":["1670839190650"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-30"},"publish_date":"2023-03-30","publish_status":"0","recid":"5806","relation_version_is_last":true,"title":["積雪内部の水分移動に関する実験的研究"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-08T09:30:33.167056+00:00"}