{"created":"2026-01-13T06:26:55.989576+00:00","id":2001675,"links":{},"metadata":{"_buckets":{"deposit":"52046b9d-108e-4dfd-a9f2-2ed6aee1a1bc"},"_deposit":{"created_by":121,"id":"2001675","owner":"121","owners":[121],"pid":{"revision_id":0,"type":"depid","value":"2001675"},"status":"published"},"_oai":{"id":"oai:repository.naro.go.jp:02001675","sets":["1706970004180:1","87:661:1727312983899:1727312636636:1766559045470"]},"author_link":["256","259","257","258","5683"],"item_12_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2013-03-28","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"173","bibliographicPageStart":"163","bibliographicVolumeNumber":"214","bibliographic_titles":[{"bibliographic_title":"農村工学研究所技報","bibliographic_titleLang":"ja"},{"bibliographic_title":"Technical report of the National Institute for Rural Engineering","bibliographic_titleLang":"en"}]}]},"item_12_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Electric conductivity of groundwater was measured continuously at EL.0m, -5m, -8m, -11m, and -14m respectively in a borehole in Tarama Island, Japan to clarify the fluctuation of the freshwater lens. Electric conducitivity was fluctuated by the influence of the tide. The influence was removed by averaging measurements by 25 hours. However, the fluctuation of the irregular tide brought by the typhoon etc. was not able to be removed. The thickness of the freshwater lens was presumed from the electric conducitivity. The thickness of the freshwater lens was about 8m from November, 2011 to September, 2012. The thickness of the freshwater lens increased by 1.6m when Typhoon No.17 that brought heavy rains to the Tarama Island passed. Calculated groundwater recharge rate was appropriate for past research. This result shows that the continuous monitoring of electric conductivity was useful to clarify the fluctuation of the thickness of a freshwater lens.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_12_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24514/0002001675","subitem_identifier_reg_type":"JaLC"}]},"item_12_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"独立行政法人 農業・食品産業技術総合研究機構 農村工学研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"National Agriculture and Food Research Organization, National Institute for Rural Engineering","subitem_publisher_language":"en"}]},"item_12_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-3289","subitem_source_identifier_type":"PISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"ISHIDA, 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