{"id":"https://openalex.org/W7209025532","doi":null,"title":"\u685c\u5cf6\u706b\u5c71\u306b\u304a\u3051\u308b\u7e70\u308a\u8fd4\u3057\u76f8\u5bfe\u91cd\u529b\u6e2c\u5b9a(2021\u5e7410\u6708\u304a\u3088\u30732022\u5e743\u6708)","display_name":"\u685c\u5cf6\u706b\u5c71\u306b\u304a\u3051\u308b\u7e70\u308a\u8fd4\u3057\u76f8\u5bfe\u91cd\u529b\u6e2c\u5b9a(2021\u5e7410\u6708\u304a\u3088\u30732022\u5e743\u6708)","publication_year":2022,"publication_date":"2022-12-01","ids":{"openalex":"https://openalex.org/W7209025532"},"language":"en","primary_location":{"id":"pmh:oai:irdb.nii.ac.jp:01221:0005697621","doi":null,"is_oa":true,"landing_page_url":"https://repository.kulib.kyoto-u.ac.jp/bitstreams/45aff415-a738-4c78-b2f1-6b0bad9f158c/download","pdf_url":"https://repository.kulib.kyoto-u.ac.jp/bitstreams/45aff415-a738-4c78-b2f1-6b0bad9f158c/download","source":{"id":"https://openalex.org/S7407056385","display_name":"Institutional Repositories DataBase (IRDB)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I184597095","host_organization_name":"National Institute of Informatics","host_organization_lineage":["https://openalex.org/I184597095"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Disaster Prevention Research Institute Annuals. B","raw_type":"departmental bulletin paper"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://repository.kulib.kyoto-u.ac.jp/bitstreams/45aff415-a738-4c78-b2f1-6b0bad9f158c/download","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5062378371","display_name":"Takahito Kazama","orcid":"https://orcid.org/0000-0001-7892-333X","observed_orcids":["https://orcid.org/0000-0001-7892-333X"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"KAZAMA, Takahito","raw_affiliation_strings":["Graduate School of Science, Kyoto University"],"raw_orcid":"https://orcid.org/0000-0001-7892-333X","affiliations":[{"raw_affiliation_string":"Graduate School of Science, Kyoto University","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058770765","display_name":"Ryo Oyanagi","orcid":"https://orcid.org/0000-0002-9262-8799","observed_orcids":["https://orcid.org/0000-0002-9262-8799"]},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"OYANAGI, Ryo","raw_affiliation_strings":["Graduate School of Science, Kyoto University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Science, Kyoto University","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111743578","display_name":"Keigo Yamamoto","orcid":"https://orcid.org/0000-0002-2253-1115","observed_orcids":["https://orcid.org/0000-0002-2253-1115"]},"institutions":[{"id":"https://openalex.org/I4405264767","display_name":"Disaster Prevention Research Institute, Kyoto University","ror":"https://ror.org/02xfpc920","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242","https://openalex.org/I4405264767"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"YAMAMOTO, Keigo","raw_affiliation_strings":["Disaster Prevention Research Institute, Kyoto University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Disaster Prevention Research Institute, Kyoto University","institution_ids":["https://openalex.org/I4405264767"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100975747","display_name":"Kazumi Okada","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I205349734","display_name":"Hokkaido University","ror":"https://ror.org/02e16g702","country_code":"JP","type":"education","lineage":["https://openalex.org/I205349734"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"OKADA, Kazumi","raw_affiliation_strings":["Graduate School of Science, Hokkaido University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Science, Hokkaido University","institution_ids":["https://openalex.org/I205349734"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103881884","display_name":"Hiromitsu Oshima","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I205349734","display_name":"Hokkaido University","ror":"https://ror.org/02e16g702","country_code":"JP","type":"education","lineage":["https://openalex.org/I205349734"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"OSHIMA, Hiromitsu","raw_affiliation_strings":["Graduate School of Science, Hokkaido University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Science, Hokkaido University","institution_ids":["https://openalex.org/I205349734"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5150376609","display_name":"Yusuke TAKENAKA","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405264767","display_name":"Disaster Prevention Research Institute, Kyoto University","ror":"https://ror.org/02xfpc920","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242","https://openalex.org/I4405264767"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"TAKENAKA, Yusuke","raw_affiliation_strings":["Disaster Prevention Research Institute, Kyoto University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Disaster Prevention Research Institute, Kyoto University","institution_ids":["https://openalex.org/I4405264767"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084583597","display_name":"Masato Iguchi","orcid":"https://orcid.org/0000-0002-4322-5854","observed_orcids":["https://orcid.org/0000-0002-4322-5854"]},"institutions":[{"id":"https://openalex.org/I4405264767","display_name":"Disaster Prevention Research Institute, Kyoto University","ror":"https://ror.org/02xfpc920","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242","https://openalex.org/I4405264767"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"IGUCHI, Masato","raw_affiliation_strings":["Disaster Prevention Research Institute, Kyoto University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Disaster Prevention Research Institute, Kyoto University","institution_ids":["https://openalex.org/I4405264767"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"65","issue":"B","first_page":"67","last_page":"76"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11405","display_name":"Geophysics and Gravity Measurements","score":0.9916999936103821,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11405","display_name":"Geophysics and Gravity Measurements","score":0.9916999936103821,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10110","display_name":"earthquake and tectonic studies","score":0.004399999976158142,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13177","display_name":"Geological and Geophysical Studies","score":0.0007999999797903001,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/sakurajima-volcano","display_name":"Sakurajima volcano","score":0.9229999780654907},{"id":"https://openalex.org/keywords/relative-gravity","display_name":"relative gravity","score":0.7590000033378601},{"id":"https://openalex.org/keywords/volcano-deformation","display_name":"volcano deformation","score":0.47600001096725464},{"id":"https://openalex.org/keywords/quiet-period","display_name":"quiet period","score":0.43799999356269836},{"id":"https://openalex.org/keywords/gravity-monitoring","display_name":"gravity monitoring","score":0.3269999921321869}],"concepts":[{"id":"https://openalex.org/C120806208","wikidata":"https://www.wikidata.org/wiki/Q8072","display_name":"Volcano","level":2,"score":0.8335999846458435},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.6912000179290771},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.5070000290870667},{"id":"https://openalex.org/C165205528","wikidata":"https://www.wikidata.org/wiki/Q83371","display_name":"Seismology","level":1,"score":0.3361999988555908},{"id":"https://openalex.org/C2777185736","wikidata":"https://www.wikidata.org/wiki/Q7265603","display_name":"QUIET","level":2,"score":0.2930999994277954},{"id":"https://openalex.org/C6363049","wikidata":"https://www.wikidata.org/wiki/Q505748","display_name":"Volcanism","level":3,"score":0.27309998869895935},{"id":"https://openalex.org/C96342900","wikidata":"https://www.wikidata.org/wiki/Q1413914","display_name":"Gravity anomaly","level":3,"score":0.2651999890804291},{"id":"https://openalex.org/C2781291010","wikidata":"https://www.wikidata.org/wiki/Q178580","display_name":"Period (music)","level":2,"score":0.2515000104904175},{"id":"https://openalex.org/C8058405","wikidata":"https://www.wikidata.org/wiki/Q46255","display_name":"Geophysics","level":1,"score":0.23270000517368317},{"id":"https://openalex.org/C36185635","wikidata":"https://www.wikidata.org/wiki/Q17006925","display_name":"Center of mass (relativistic)","level":3,"score":0.22339999675750732}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:irdb.nii.ac.jp:01221:0005697621","doi":null,"is_oa":true,"landing_page_url":"https://repository.kulib.kyoto-u.ac.jp/bitstreams/45aff415-a738-4c78-b2f1-6b0bad9f158c/download","pdf_url":"https://repository.kulib.kyoto-u.ac.jp/bitstreams/45aff415-a738-4c78-b2f1-6b0bad9f158c/download","source":{"id":"https://openalex.org/S7407056385","display_name":"Institutional Repositories DataBase (IRDB)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I184597095","host_organization_name":"National Institute of Informatics","host_organization_lineage":["https://openalex.org/I184597095"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Disaster Prevention Research Institute Annuals. B","raw_type":"departmental bulletin paper"},{"id":"pmh:oai:repository.kulib.kyoto-u.ac.jp:2433/279417","doi":null,"is_oa":false,"landing_page_url":"http://hdl.handle.net/2433/279417","pdf_url":null,"source":{"id":"https://openalex.org/S4306401454","display_name":"Kyoto University Research Information Repository (Kyoto University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I22299242","host_organization_name":"Kyoto University","host_organization_lineage":["https://openalex.org/I22299242"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"departmental bulletin paper"}],"best_oa_location":{"id":"pmh:oai:irdb.nii.ac.jp:01221:0005697621","doi":null,"is_oa":true,"landing_page_url":"https://repository.kulib.kyoto-u.ac.jp/bitstreams/45aff415-a738-4c78-b2f1-6b0bad9f158c/download","pdf_url":"https://repository.kulib.kyoto-u.ac.jp/bitstreams/45aff415-a738-4c78-b2f1-6b0bad9f158c/download","source":{"id":"https://openalex.org/S7407056385","display_name":"Institutional Repositories DataBase (IRDB)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I184597095","host_organization_name":"National Institute of Informatics","host_organization_lineage":["https://openalex.org/I184597095"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Disaster Prevention Research Institute Annuals. B","raw_type":"departmental bulletin paper"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7209889269","https://openalex.org/W7007402596","https://openalex.org/W7209861477","https://openalex.org/W3003639360","https://openalex.org/W2964698207","https://openalex.org/W7110989657","https://openalex.org/W7145918766","https://openalex.org/W7208098250","https://openalex.org/W7135236458","https://openalex.org/W4377028863"],"abstract_inverted_index":{"Relative":[0],"gravity":[1,8,31,55],"values":[2,32],"were":[3],"repeatedly":[4],"measured":[5],"at":[6,76,104],"19":[7],"points":[9],"in":[10,15,47],"and":[11,18],"around":[12],"Sakurajima":[13,94],"Volcano":[14],"October":[16],"2021":[17],"March":[19],"2022,":[20],"to":[21,36,44],"monitor":[22],"spatiotemporal":[23],"mass":[24,63,90],"variations":[25],"associated":[26],"with":[27],"volcanic":[28,89],"activity.":[29],"The":[30,54],"obtained":[33],"from":[34],"1998":[35],"2022":[37],"showed":[38],"a":[39,77],"clear":[40],"increase":[41,56,64],"of":[42,51,65,73,79,101],"up":[43],"+4.3":[45],"\uf06dGal/yr":[46],"the":[48,52,61,71,74,98,105],"central":[49],"part":[50],"volcano.":[53],"can":[57],"be":[58],"explained":[59],"by":[60],"point":[62],"8":[66],"\u00d7":[67],"109":[68],"kg/yr":[69],"under":[70,93],"center":[72],"volcano":[75],"depth":[78],"3":[80],"km":[81],"below":[82],"sea":[83],"level.":[84],"This":[85],"result":[86],"implies":[87],"that":[88],"continuously":[91],"increases":[92],"Volcano,":[95],"even":[96],"during":[97],"quiet":[99],"period":[100],"eruptive":[102],"activities":[103],"Minami-dake":[106],"crater.":[107]},"counts_by_year":[],"updated_date":"2026-09-29T14:09:16.559479","created_date":"2026-09-06T00:00:00"}