{"id":"https://openalex.org/W2116310430","doi":"https://doi.org/10.2481/dsj.ss_igy-004","title":"Long-Term Seafloor Electromagnetic Observation in the Northwest Pacific May Detect the Vector Geomagnetic Secular Variation","display_name":"Long-Term Seafloor Electromagnetic Observation in the Northwest Pacific May Detect the Vector Geomagnetic Secular Variation","publication_year":2010,"publication_date":"2010-01-01","ids":{"openalex":"https://openalex.org/W2116310430","doi":"https://doi.org/10.2481/dsj.ss_igy-004","mag":"2116310430"},"language":"en","primary_location":{"id":"doi:10.2481/dsj.ss_igy-004","is_oa":true,"landing_page_url":"https://doi.org/10.2481/dsj.ss_igy-004","pdf_url":"https://storage.googleapis.com/jnl-up-j-dsj-files/journals/1/articles/153/submission/proof/153-1-289-1-10-20150415.pdf","source":{"id":"https://openalex.org/S62969111","display_name":"Data Science Journal","issn_l":"1683-1470","issn":["1683-1470"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320511","host_organization_name":"Ubiquity Press","host_organization_lineage":["https://openalex.org/P4310320511"],"host_organization_lineage_names":["Ubiquity Press"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Data Science Journal","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://storage.googleapis.com/jnl-up-j-dsj-files/journals/1/articles/153/submission/proof/153-1-289-1-10-20150415.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5058712478","display_name":"Hiroaki Toh","orcid":"https://orcid.org/0000-0003-3914-5613"},"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":"H. Toh","raw_affiliation_strings":["Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University, Kitashirakawa\u2019Oiwake-cho, Sakyo-ku, Kyoto 6068502 JAPAN"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University, Kitashirakawa\u2019Oiwake-cho, Sakyo-ku, Kyoto 6068502 JAPAN","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109529822","display_name":"Y. Hamano","orcid":null},"institutions":[{"id":"https://openalex.org/I1315852903","display_name":"Japan Agency for Marine-Earth Science and Technology","ror":"https://ror.org/059qg2m13","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1315852903"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Y. Hamano","raw_affiliation_strings":["Basic Research Program, IFREE, JAMSTEC, Natsushima, Yokosuka, Kanagawa 2370061 JAPAN"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Basic Research Program, IFREE, JAMSTEC, Natsushima, Yokosuka, Kanagawa 2370061 JAPAN","institution_ids":["https://openalex.org/I1315852903"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020745198","display_name":"Tada\u2010nori Goto","orcid":"https://orcid.org/0000-0002-7797-7309"},"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":"T. Goto","raw_affiliation_strings":["Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto University, Katsura,\r\nNishikyo-ku, Kyoto 6158540 JAPAN","Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto University, Katsura,#R##N#Nishikyo-ku, Kyoto 6158540 JAPAN"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto University, Katsura,\r\nNishikyo-ku, Kyoto 6158540 JAPAN","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto University, Katsura,#R##N#Nishikyo-ku, Kyoto 6158540 JAPAN","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5078465995","display_name":"Hisashi Utada","orcid":"https://orcid.org/0000-0001-5885-5675"},"institutions":[{"id":"https://openalex.org/I2800279901","display_name":"Earthquake Engineering Research Institute","ror":"https://ror.org/03v188q73","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I2800279901"]},{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP","US"],"is_corresponding":false,"raw_author_name":"H. Utada","raw_affiliation_strings":["Ocean Hemisphere Research Center, Earthquake Research Institute, University of Tokyo, Yayoi, Bunkyo-ku, Tokyo\r\n1130032 JAPAN","Ocean Hemisphere Research Center, Earthquake Research Institute, University of Tokyo, Yayoi, Bunkyo-ku, Tokyo#R##N#1130032 JAPAN"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ocean Hemisphere Research Center, Earthquake Research Institute, University of Tokyo, Yayoi, Bunkyo-ku, Tokyo\r\n1130032 JAPAN","institution_ids":["https://openalex.org/I2800279901","https://openalex.org/I74801974"]},{"raw_affiliation_string":"Ocean Hemisphere Research Center, Earthquake Research Institute, University of Tokyo, Yayoi, Bunkyo-ku, Tokyo#R##N#1130032 JAPAN","institution_ids":["https://openalex.org/I74801974"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":350,"currency":"GBP","value_usd":429},"apc_paid":{"value":350,"currency":"GBP","value_usd":429},"fwci":0.6807,"has_fulltext":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.69885051,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"9","issue":null,"first_page":"IGY100","last_page":"IGY109"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11786","display_name":"Geomagnetism and Paleomagnetism Studies","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T11786","display_name":"Geomagnetism and Paleomagnetism Studies","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10572","display_name":"Geophysical and Geoelectrical Methods","score":0.9990000128746033,"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/T12424","display_name":"Earthquake Detection and Analysis","score":0.9987999796867371,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/earths-magnetic-field","display_name":"Earth's magnetic field","score":0.926301121711731},{"id":"https://openalex.org/keywords/seafloor-spreading","display_name":"Seafloor spreading","score":0.779868483543396},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.7695838809013367},{"id":"https://openalex.org/keywords/secular-variation","display_name":"Secular variation","score":0.759235143661499},{"id":"https://openalex.org/keywords/geomagnetic-secular-variation","display_name":"Geomagnetic secular variation","score":0.7010523080825806},{"id":"https://openalex.org/keywords/geophysics","display_name":"Geophysics","score":0.5466663241386414},{"id":"https://openalex.org/keywords/term","display_name":"Term (time)","score":0.4655305743217468},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.4534294307231903},{"id":"https://openalex.org/keywords/climatology","display_name":"Climatology","score":0.32663923501968384},{"id":"https://openalex.org/keywords/geomagnetic-storm","display_name":"Geomagnetic storm","score":0.19518223404884338},{"id":"https://openalex.org/keywords/magnetic-field","display_name":"Magnetic field","score":0.14800676703453064},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.08685675263404846},{"id":"https://openalex.org/keywords/astronomy","display_name":"Astronomy","score":0.0791863203048706}],"concepts":[{"id":"https://openalex.org/C199635899","wikidata":"https://www.wikidata.org/wiki/Q6500960","display_name":"Earth's magnetic field","level":3,"score":0.926301121711731},{"id":"https://openalex.org/C117485682","wikidata":"https://www.wikidata.org/wiki/Q215920","display_name":"Seafloor spreading","level":2,"score":0.779868483543396},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.7695838809013367},{"id":"https://openalex.org/C112197492","wikidata":"https://www.wikidata.org/wiki/Q1763933","display_name":"Secular variation","level":2,"score":0.759235143661499},{"id":"https://openalex.org/C149951536","wikidata":"https://www.wikidata.org/wiki/Q5535443","display_name":"Geomagnetic secular variation","level":5,"score":0.7010523080825806},{"id":"https://openalex.org/C8058405","wikidata":"https://www.wikidata.org/wiki/Q46255","display_name":"Geophysics","level":1,"score":0.5466663241386414},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.4655305743217468},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.4534294307231903},{"id":"https://openalex.org/C49204034","wikidata":"https://www.wikidata.org/wiki/Q52139","display_name":"Climatology","level":1,"score":0.32663923501968384},{"id":"https://openalex.org/C170641098","wikidata":"https://www.wikidata.org/wiki/Q130011","display_name":"Geomagnetic storm","level":4,"score":0.19518223404884338},{"id":"https://openalex.org/C115260700","wikidata":"https://www.wikidata.org/wiki/Q11408","display_name":"Magnetic field","level":2,"score":0.14800676703453064},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.08685675263404846},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0791863203048706},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.2481/dsj.ss_igy-004","is_oa":true,"landing_page_url":"https://doi.org/10.2481/dsj.ss_igy-004","pdf_url":"https://storage.googleapis.com/jnl-up-j-dsj-files/journals/1/articles/153/submission/proof/153-1-289-1-10-20150415.pdf","source":{"id":"https://openalex.org/S62969111","display_name":"Data Science Journal","issn_l":"1683-1470","issn":["1683-1470"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320511","host_organization_name":"Ubiquity Press","host_organization_lineage":["https://openalex.org/P4310320511"],"host_organization_lineage_names":["Ubiquity Press"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Data Science Journal","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:735497bf16ae4dc49cc195c76434b410","is_oa":true,"landing_page_url":"https://doaj.org/article/735497bf16ae4dc49cc195c76434b410","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Data Science Journal, Vol 9 (2010)","raw_type":"article"},{"id":"pmh:oai:ojs.datascience.codata.org:article/153","is_oa":true,"landing_page_url":"https://datascience.codata.org/jms/article/view/dsj.SS_IGY-004","pdf_url":null,"source":{"id":"https://openalex.org/S62969111","display_name":"Data Science Journal","issn_l":"1683-1470","issn":["1683-1470"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320511","host_organization_name":"Ubiquity Press","host_organization_lineage":["https://openalex.org/P4310320511"],"host_organization_lineage_names":["Ubiquity Press"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Data Science Journal; Vol 9 (2010): Special Issue; IGY100-IGY109","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.2481/dsj.ss_igy-004","is_oa":true,"landing_page_url":"https://doi.org/10.2481/dsj.ss_igy-004","pdf_url":"https://storage.googleapis.com/jnl-up-j-dsj-files/journals/1/articles/153/submission/proof/153-1-289-1-10-20150415.pdf","source":{"id":"https://openalex.org/S62969111","display_name":"Data Science Journal","issn_l":"1683-1470","issn":["1683-1470"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320511","host_organization_name":"Ubiquity Press","host_organization_lineage":["https://openalex.org/P4310320511"],"host_organization_lineage_names":["Ubiquity Press"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Data Science Journal","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.8799999952316284,"display_name":"Life below water","id":"https://metadata.un.org/sdg/14"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320334896","display_name":"Japan Agency for Marine-Earth Science and Technology","ror":"https://ror.org/059qg2m13"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2116310430.pdf","grobid_xml":"https://content.openalex.org/works/W2116310430.grobid-xml"},"referenced_works_count":24,"referenced_works":["https://openalex.org/W1041749679","https://openalex.org/W1564934251","https://openalex.org/W1599533507","https://openalex.org/W1965628251","https://openalex.org/W1979957899","https://openalex.org/W1994010532","https://openalex.org/W1995144089","https://openalex.org/W2003402289","https://openalex.org/W2004926800","https://openalex.org/W2006656350","https://openalex.org/W2025228165","https://openalex.org/W2031183624","https://openalex.org/W2032721372","https://openalex.org/W2034048918","https://openalex.org/W2044741566","https://openalex.org/W2066866610","https://openalex.org/W2075567900","https://openalex.org/W2085765813","https://openalex.org/W2087869012","https://openalex.org/W2088616037","https://openalex.org/W2143215875","https://openalex.org/W2169985461","https://openalex.org/W2270597032","https://openalex.org/W4240235423"],"related_works":["https://openalex.org/W2378213456","https://openalex.org/W1980128101","https://openalex.org/W1976181586","https://openalex.org/W2266906890","https://openalex.org/W3092406331","https://openalex.org/W3118798048","https://openalex.org/W2884495416","https://openalex.org/W1872119943","https://openalex.org/W1976291451","https://openalex.org/W3162017197"],"abstract_inverted_index":{"Sea":[0],"Floor":[1],"ElectroMagnetic":[2],"Stations":[3],"(SFEMSs)":[4],"are":[5],"now":[6],"operating":[7],"at":[8,106],"two":[9],"deep":[10,47],"seafloor":[11,48],"sites":[12],"called":[13],"the":[14,17,20,25,32,36,41,46,62,70,93,97,102,107],"'WPB'":[15],"and":[16,24],"'NWP'":[18],"in":[19,101],"West":[21],"Philippine":[22],"Basin":[23],"Northwest":[26],"Pacific":[27],"Basin,":[28],"respectively.":[29],"One":[30],"of":[31,35,96],"main":[33],"objectives":[34],"SFEMSs":[37,59],"is":[38],"to":[39],"detect":[40],"geomagnetic":[42,51,64,71,81,103],"secular":[43,104],"variations":[44],"on":[45],"where":[49],"long-term":[50],"observations":[52],"have":[53],"not":[54],"so":[55],"far":[56],"been":[57],"achieved.":[58],"can":[60],"measure":[61],"absolute":[63],"total":[65],"force":[66],"as":[67,69],"well":[68],"vector":[72,80],"field":[73],"with":[74],"precise":[75],"attitude":[76],"monitoring":[77],"systems.":[78],"The":[79],"time-series":[82],"that":[83,92],"was":[84],"observed":[85],"for":[86],"more":[87],"than":[88],"5":[89],"years":[90],"revealed":[91],"westward":[94],"drift":[95],"equatorial":[98],"dipole":[99],"dominates":[100],"variation":[105],"NWP.":[108]},"counts_by_year":[{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}