{"id":"https://openalex.org/W4391361777","doi":"https://doi.org/10.3390/rs16030529","title":"Analysis of Pre-Seismic Ionospheric Disturbances Prior to 2020 Croatian Earthquakes","display_name":"Analysis of Pre-Seismic Ionospheric Disturbances Prior to 2020 Croatian Earthquakes","publication_year":2024,"publication_date":"2024-01-30","ids":{"openalex":"https://openalex.org/W4391361777","doi":"https://doi.org/10.3390/rs16030529"},"language":"en","primary_location":{"id":"doi:10.3390/rs16030529","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs16030529","pdf_url":null,"source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.3390/rs16030529","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5060546422","display_name":"M. Y. Boudjada","orcid":"https://orcid.org/0000-0002-1934-7616"},"institutions":[{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"government","lineage":["https://openalex.org/I138211613"]},{"id":"https://openalex.org/I4210091641","display_name":"Space Research Institute","ror":"https://ror.org/002w0jp71","country_code":"AT","type":"facility","lineage":["https://openalex.org/I138211613","https://openalex.org/I4210091641"]}],"countries":["AT"],"is_corresponding":true,"raw_author_name":"Mohammed Y. Boudjada","raw_affiliation_strings":["Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria","institution_ids":["https://openalex.org/I4210091641","https://openalex.org/I138211613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023813820","display_name":"P. F. Biagi","orcid":"https://orcid.org/0000-0003-2584-8481"},"institutions":[{"id":"https://openalex.org/I5561750","display_name":"University of Bari Aldo Moro","ror":"https://ror.org/027ynra39","country_code":"IT","type":"education","lineage":["https://openalex.org/I5561750"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Pier F. Biagi","raw_affiliation_strings":["Department of Physics, University of Bari, 70126 Bari, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Physics, University of Bari, 70126 Bari, Italy","institution_ids":["https://openalex.org/I5561750"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112209776","display_name":"Hans Eichelberger","orcid":null},"institutions":[{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"government","lineage":["https://openalex.org/I138211613"]},{"id":"https://openalex.org/I4210091641","display_name":"Space Research Institute","ror":"https://ror.org/002w0jp71","country_code":"AT","type":"facility","lineage":["https://openalex.org/I138211613","https://openalex.org/I4210091641"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Hans U. Eichelberger","raw_affiliation_strings":["Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria","institution_ids":["https://openalex.org/I4210091641","https://openalex.org/I138211613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032552944","display_name":"Giovanni Nico","orcid":"https://orcid.org/0000-0001-7621-5014"},"institutions":[{"id":"https://openalex.org/I4210155236","display_name":"National Research Council","ror":"https://ror.org/04zaypm56","country_code":"IT","type":"nonprofit","lineage":["https://openalex.org/I4210155236"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Giovanni Nico","raw_affiliation_strings":["Institute for Applied Mathematics (IAC), National Research Council of Italy (CNR), 70126 Bari, Italy"],"affiliations":[{"raw_affiliation_string":"Institute for Applied Mathematics (IAC), National Research Council of Italy (CNR), 70126 Bari, Italy","institution_ids":["https://openalex.org/I4210155236"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018365446","display_name":"Patrick H. M. Galopeau","orcid":"https://orcid.org/0000-0002-6114-672X"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I195731000","display_name":"Universit\u00e9 de Versailles Saint-Quentin-en-Yvelines","ror":"https://ror.org/03mkjjy25","country_code":"FR","type":"education","lineage":["https://openalex.org/I195731000","https://openalex.org/I277688954"]},{"id":"https://openalex.org/I277688954","display_name":"Universit\u00e9 Paris-Saclay","ror":"https://ror.org/03xjwb503","country_code":"FR","type":"education","lineage":["https://openalex.org/I277688954"]},{"id":"https://openalex.org/I4210154535","display_name":"Laboratoire atmosph\u00e8res, milieux, observations spatiales","ror":"https://ror.org/05ppf7q77","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I195731000","https://openalex.org/I277688954","https://openalex.org/I2799535048","https://openalex.org/I39804081","https://openalex.org/I4210154535"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Patrick H. M. Galopeau","raw_affiliation_strings":["LATMOS-CNRS, UVSQ Universit\u00e9 Paris-Saclay, 78280 Guyancourt, France"],"affiliations":[{"raw_affiliation_string":"LATMOS-CNRS, UVSQ Universit\u00e9 Paris-Saclay, 78280 Guyancourt, France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I4210154535","https://openalex.org/I195731000","https://openalex.org/I277688954"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035308295","display_name":"A. Ermini","orcid":"https://orcid.org/0000-0001-9323-6087"},"institutions":[{"id":"https://openalex.org/I116067653","display_name":"University of Rome Tor Vergata","ror":"https://ror.org/02p77k626","country_code":"IT","type":"education","lineage":["https://openalex.org/I116067653"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Anita Ermini","raw_affiliation_strings":["Department of Industrial Engineering, University of Tor Vergata, 00133 Rome, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Industrial Engineering, University of Tor Vergata, 00133 Rome, Italy","institution_ids":["https://openalex.org/I116067653"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062000489","display_name":"Maria Solovieva","orcid":"https://orcid.org/0000-0001-9883-6049"},"institutions":[{"id":"https://openalex.org/I4210152616","display_name":"Schmidt Institute of Physics of the Earth","ror":"https://ror.org/056mrsz54","country_code":"RU","type":"facility","lineage":["https://openalex.org/I1313323035","https://openalex.org/I4210152616","https://openalex.org/I4210163714"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"Maria Solovieva","raw_affiliation_strings":["Institute of the Earth Physics, Russian Academy of Sciences, Moscow 123995, Russia"],"affiliations":[{"raw_affiliation_string":"Institute of the Earth Physics, Russian Academy of Sciences, Moscow 123995, Russia","institution_ids":["https://openalex.org/I4210152616"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025678199","display_name":"Masashi Hayakawa","orcid":"https://orcid.org/0000-0001-7252-0425"},"institutions":[{"id":"https://openalex.org/I20529979","display_name":"University of Electro-Communications","ror":"https://ror.org/02x73b849","country_code":"JP","type":"education","lineage":["https://openalex.org/I20529979"]},{"id":"https://openalex.org/I4210110915","display_name":"Research Institute for Electromagnetic Materials","ror":"https://ror.org/0172njy07","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110915"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masashi Hayakawa","raw_affiliation_strings":["Advanced Wireless & Communications Research Center, The University of Electro-Communications, Tokyo 182-8585, Japan","Hayakawa Institute of Seismo Electromagnetics, Co., Ltd. (Hi-SEM), Tokyo 182-8585, Japan"],"affiliations":[{"raw_affiliation_string":"Advanced Wireless & Communications Research Center, The University of Electro-Communications, Tokyo 182-8585, Japan","institution_ids":["https://openalex.org/I20529979"]},{"raw_affiliation_string":"Hayakawa Institute of Seismo Electromagnetics, Co., Ltd. (Hi-SEM), Tokyo 182-8585, Japan","institution_ids":["https://openalex.org/I4210110915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026948328","display_name":"H. L\u00e4mmer","orcid":"https://orcid.org/0000-0002-0547-7671"},"institutions":[{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"government","lineage":["https://openalex.org/I138211613"]},{"id":"https://openalex.org/I4210091641","display_name":"Space Research Institute","ror":"https://ror.org/002w0jp71","country_code":"AT","type":"facility","lineage":["https://openalex.org/I138211613","https://openalex.org/I4210091641"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Helmut Lammer","raw_affiliation_strings":["Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria","institution_ids":["https://openalex.org/I4210091641","https://openalex.org/I138211613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007672137","display_name":"W. Voller","orcid":null},"institutions":[{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"government","lineage":["https://openalex.org/I138211613"]},{"id":"https://openalex.org/I4210091641","display_name":"Space Research Institute","ror":"https://ror.org/002w0jp71","country_code":"AT","type":"facility","lineage":["https://openalex.org/I138211613","https://openalex.org/I4210091641"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Wolfgang Voller","raw_affiliation_strings":["Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria","institution_ids":["https://openalex.org/I4210091641","https://openalex.org/I138211613"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5060824938","display_name":"Martin Pitterle","orcid":null},"institutions":[{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"government","lineage":["https://openalex.org/I138211613"]},{"id":"https://openalex.org/I4210091641","display_name":"Space Research Institute","ror":"https://ror.org/002w0jp71","country_code":"AT","type":"facility","lineage":["https://openalex.org/I138211613","https://openalex.org/I4210091641"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Martin Pitterle","raw_affiliation_strings":["Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria","institution_ids":["https://openalex.org/I4210091641","https://openalex.org/I138211613"]}]}],"institutions":[],"countries_distinct_count":5,"institutions_distinct_count":11,"corresponding_author_ids":["https://openalex.org/A5060546422"],"corresponding_institution_ids":["https://openalex.org/I138211613","https://openalex.org/I4210091641"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":6.251,"has_fulltext":true,"cited_by_count":12,"citation_normalized_percentile":{"value":0.97023331,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":99},"biblio":{"volume":"16","issue":"3","first_page":"529","last_page":"529"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12424","display_name":"Earthquake Detection and Analysis","score":1.0,"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/T12424","display_name":"Earthquake Detection and Analysis","score":1.0,"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/T11757","display_name":"Seismic Waves and Analysis","score":0.9965999722480774,"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":0.9927999973297119,"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/geology","display_name":"Geology","score":0.6469042301177979},{"id":"https://openalex.org/keywords/ionosphere","display_name":"Ionosphere","score":0.5689243674278259},{"id":"https://openalex.org/keywords/croatian","display_name":"Croatian","score":0.558881938457489},{"id":"https://openalex.org/keywords/seismology","display_name":"Seismology","score":0.5575963854789734},{"id":"https://openalex.org/keywords/geophysics","display_name":"Geophysics","score":0.31152522563934326}],"concepts":[{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.6469042301177979},{"id":"https://openalex.org/C116403925","wikidata":"https://www.wikidata.org/wiki/Q162219","display_name":"Ionosphere","level":2,"score":0.5689243674278259},{"id":"https://openalex.org/C83559648","wikidata":"https://www.wikidata.org/wiki/Q6654","display_name":"Croatian","level":2,"score":0.558881938457489},{"id":"https://openalex.org/C165205528","wikidata":"https://www.wikidata.org/wiki/Q83371","display_name":"Seismology","level":1,"score":0.5575963854789734},{"id":"https://openalex.org/C8058405","wikidata":"https://www.wikidata.org/wiki/Q46255","display_name":"Geophysics","level":1,"score":0.31152522563934326},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/rs16030529","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs16030529","pdf_url":null,"source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:HAL:insu-04439660v1","is_oa":true,"landing_page_url":"https://insu.hal.science/insu-04439660","pdf_url":"https://insu.hal.science/insu-04439660/document","source":{"id":"https://openalex.org/S4406922466","display_name":"SPIRE - Sciences Po Institutional REpository","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":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, 2024, 16 (3), pp.529. ⟨10.3390/rs16030529⟩","raw_type":"Journal articles"},{"id":"pmh:oai:HAL:insu-04550544v2","is_oa":true,"landing_page_url":"https://insu.hal.science/insu-04550544","pdf_url":"https://insu.hal.science/insu-04550544v2/document","source":{"id":"https://openalex.org/S4406922466","display_name":"SPIRE - Sciences Po Institutional REpository","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","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ISSN: 2072-4292","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:art.torvergata.it:2108/352326","is_oa":true,"landing_page_url":"https://hdl.handle.net/2108/352326","pdf_url":"https://art.torvergata.it/bitstream/2108/352326/1/remotesensing-16-00529.pdf","source":{"id":"https://openalex.org/S4306400993","display_name":"Cineca Institutional Research Information System (Tor Vergata University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I116067653","host_organization_name":"University of Rome Tor Vergata","host_organization_lineage":["https://openalex.org/I116067653"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:doaj.org/article:382440d26a134e169f3dda42235387df","is_oa":true,"landing_page_url":"https://doaj.org/article/382440d26a134e169f3dda42235387df","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, Vol 16, Iss 3, p 529 (2024)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.3390/rs16030529","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs16030529","pdf_url":null,"source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1539590706","display_name":null,"funder_award_id":"Saclay","funder_id":"https://openalex.org/F4320323911","funder_display_name":"Commissariat \u00e0 l'\u00c9nergie Atomique et aux \u00c9nergies Alternatives"},{"id":"https://openalex.org/G4973929103","display_name":null,"funder_award_id":"funding","funder_id":"https://openalex.org/F4320322892","funder_display_name":"Centre National de la Recherche Scientifique"},{"id":"https://openalex.org/G7348793423","display_name":null,"funder_award_id":"CNRS/INSU","funder_id":"https://openalex.org/F4320322892","funder_display_name":"Centre National de la Recherche Scientifique"},{"id":"https://openalex.org/G7758152977","display_name":null,"funder_award_id":"support","funder_id":"https://openalex.org/F4320322892","funder_display_name":"Centre National de la Recherche Scientifique"}],"funders":[{"id":"https://openalex.org/F4320320766","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302"},{"id":"https://openalex.org/F4320321519","display_name":"Centre National d\u2019Etudes Spatiales","ror":"https://ror.org/04h1h0y33"},{"id":"https://openalex.org/F4320322890","display_name":"Minist\u00e8re de l'Enseignement Sup\u00e9rieur et de la Recherche","ror":"https://ror.org/03sjk9a61"},{"id":"https://openalex.org/F4320322892","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73"},{"id":"https://openalex.org/F4320323229","display_name":"National Central University","ror":"https://ror.org/00944ve71"},{"id":"https://openalex.org/F4320323911","display_name":"Commissariat \u00e0 l'\u00c9nergie Atomique et aux \u00c9nergies Alternatives","ror":"https://ror.org/00jjx8s55"},{"id":"https://openalex.org/F4320324252","display_name":"Universit\u00e9 Paris-Saclay","ror":"https://ror.org/03xjwb503"},{"id":"https://openalex.org/F4320330625","display_name":"Soci\u00e9t\u00e9 d'Acc\u00e9l\u00e9ration du Transfert de Technologies","ror":null},{"id":"https://openalex.org/F4320331144","display_name":"Universit\u00e9 de Versailles Saint-Quentin-en-Yvelines","ror":"https://ror.org/03mkjjy25"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W300821818","https://openalex.org/W1973616447","https://openalex.org/W1999695734","https://openalex.org/W2029250655","https://openalex.org/W2076816574","https://openalex.org/W2086068384","https://openalex.org/W2109874102","https://openalex.org/W2118734953","https://openalex.org/W2124607032","https://openalex.org/W2161249568","https://openalex.org/W2167411386","https://openalex.org/W2170906853","https://openalex.org/W2238920231","https://openalex.org/W2443171867","https://openalex.org/W2505054656","https://openalex.org/W2913550993","https://openalex.org/W2945325291","https://openalex.org/W2954104700","https://openalex.org/W3000730432","https://openalex.org/W3005515591","https://openalex.org/W3121094733","https://openalex.org/W3125811234","https://openalex.org/W3190637020","https://openalex.org/W3214947061","https://openalex.org/W4224089647","https://openalex.org/W4242614415","https://openalex.org/W4293507940","https://openalex.org/W4307546875","https://openalex.org/W4328095715","https://openalex.org/W4353066190","https://openalex.org/W4389196242","https://openalex.org/W4389559562","https://openalex.org/W6610514767","https://openalex.org/W6718814209"],"related_works":["https://openalex.org/W2119694050","https://openalex.org/W2204178000","https://openalex.org/W3213497837","https://openalex.org/W2330448101","https://openalex.org/W761373407","https://openalex.org/W2737223429","https://openalex.org/W2909768588","https://openalex.org/W2044949058","https://openalex.org/W657208614","https://openalex.org/W273166032"],"abstract_inverted_index":{"We":[0,61,150],"study":[1,132],"the":[2,9,14,25,29,56,66,75,135,139,145,157,160,164,169],"sub-ionospheric":[3,45],"VLF":[4,91],"transmitter":[5,46,67,148],"signals":[6,19],"recorded":[7,70],"by":[8],"Austrian":[10,35],"Graz":[11,36,90],"station":[12],"in":[13,24,55,63,80],"year":[15],"2020.":[16],"Those":[17],"radio":[18],"are":[20],"known":[21],"to":[22,115,152,155,168],"propagate":[23],"Earth-ionosphere":[26],"waveguide":[27],"between":[28],"ground":[30],"and":[31,101,109,121,144,154,159],"lower":[32],"ionosphere.":[33],"The":[34,93],"facility":[37],"(geographic":[38],"coordinates:":[39],"15.46\u00b0E,":[40],"47.03\u00b0N)":[41],"can":[42],"receive":[43],"such":[44],"signals,":[47],"particularly":[48],"those":[49],"propagating":[50],"above":[51],"earthquake":[52],"(EQ)":[53],"regions":[54],"southern":[57],"part":[58],"of":[59,77,107,124,147,163],"Europe.":[60],"consider":[62],"this":[64],"work":[65],"amplitude":[68],"variations":[69],"a":[71,83],"few":[72],"weeks":[73],"before":[74],"occurrence":[76],"two":[78],"EQs":[79,95],"Croatia":[81],"at":[82],"distance":[84],"less":[85],"than":[86,127],"200":[87],"km":[88],"from":[89],"facility.":[92],"selected":[94],"happened":[96],"on":[97],"22":[98],"March":[99],"2020":[100],"29":[102],"December":[103],"2020,":[104],"with":[105,122],"magnitudes":[106],"Mw5.4":[108],"Mw6.4,":[110],"respectively,":[111],"epicenters":[112],"localized":[113],"close":[114],"Zagreb":[116],"(16.02\u00b0E,":[117],"45.87\u00b0N;":[118],"16.21\u00b0E,":[119],"45.42\u00b0N),":[120],"focuses":[123],"depth":[125],"smaller":[126],"10":[128],"km.":[129],"In":[130],"our":[131],"we":[133],"emphasize":[134],"anomaly":[136],"fluctuations":[137],"before/after":[138],"sunrise":[140],"times,":[141,143],"sunset":[142],"cross-correlation":[146],"signals.":[149],"attempt":[151],"evaluate":[153],"estimate":[156],"latitudinal":[158],"longitudinal":[161],"expansions":[162],"ionospheric":[165],"disturbances":[166],"related":[167],"seismic":[170],"preparation":[171],"areas.":[172]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":5}],"updated_date":"2026-04-10T15:06:20.359241","created_date":"2025-10-10T00:00:00"}