{"created":"2023-03-31T02:06:36.181588+00:00","id":4900,"links":{},"metadata":{"_buckets":{"deposit":"00cd33b3-74e6-4dce-86d2-c3cb78e41621"},"_deposit":{"id":"4900","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"4900"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00004900","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1997-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"230","bibliographicPageStart":"227","bibliographicVolumeNumber":"43","bibliographic_titles":[{"bibliographic_title":"測地学会誌","bibliographic_titleLang":"ja"},{"bibliographic_title":"Journal of the Geodetic Society of Japan","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Since 1994 Geographical Survey Institute, Japan has deployed the GPS system (GEONET) which is composed of about 890 sites, and covers Japan Islands with interval length of about 25 km . This system is very powerful to detect the movement ofJapan Islands. However, it is difficult to detect the local crustal movement caused by volcanic and/or tectonic activity by GEONET, whose dimension is several 10 km. We need more dense GPS network to detect local events. Recently, a new small L1GPS receiver has been developed, which is improved for car navigation system. This type of receiver is small and cheep, and phase data can be generated. It may be useful for realizing the more dense GPS network and portable GPS System . Test measurements were carried out to verify that crustal deformation can be detected with the receivers. 5 baselines with length between 0.5 and 6 km were measured and Bernese GPS SoftwareVer 4.0 is used for the baseline analysis . The repeatabilities of length and height are 3 mm and 6.5 mm for 6 km baseline when the session length is 1 hour and the sampling interval is 1 second . Repeatabilities of length and height are 4 mm and 9 mm for 5 km baseline when session length is 40 minutes and sampling interval is 30 second. It has enough resolution to detect local crustal movement. It proves the possibility to realize the dense GPS network and portable GPS System using the small L1 GPS receiver.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本測地学会","subitem_publisher_language":"ja"},{"subitem_publisher":"The Geodetic Society of Japan","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.11366/sokuchi1954.43.227"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2185-517X","subitem_source_identifier_type":"EISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"中尾 茂","creatorNameLang":"ja"},{"creatorName":"Nakao Shigeru","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"森田 裕一","creatorNameLang":"ja"},{"creatorName":"Morita Yuichi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"平田 安廣","creatorNameLang":"ja"},{"creatorName":"Hirata Yasuhiro","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_title":"ＧＰＳによる多点高密度地殻変動観測実現の可能性","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ＧＰＳによる多点高密度地殻変動観測実現の可能性","subitem_title_language":"ja"},{"subitem_title":"Possibility for Observation of Crustal Deformation by means of Dense GPS Network.","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":"4900","relation_version_is_last":true,"title":["ＧＰＳによる多点高密度地殻変動観測実現の可能性"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-08T06:12:19.252152+00:00"}