{"id":"https://openalex.org/W2033720387","doi":"https://doi.org/10.1016/0021-9169(64)90102-3","title":"Level of solar radio flux in the 3000 Mc/s region and its relation to the occurrence of sudden ionospheric disturbances","display_name":"Level of solar radio flux in the 3000 Mc/s region and its relation to the occurrence of sudden ionospheric disturbances","publication_year":1964,"publication_date":"1964-11-01","ids":{"openalex":"https://openalex.org/W2033720387","doi":"https://doi.org/10.1016/0021-9169(64)90102-3","mag":"2033720387"},"language":"en","primary_location":{"id":"doi:10.1016/0021-9169(64)90102-3","doi":"https://doi.org/10.1016/0021-9169(64)90102-3","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0021-9169(64)90102-3","pdf_url":null,"source":{"id":"https://openalex.org/S4210190731","display_name":"Journal of Atmospheric and Terrestrial Physics","issn_l":"0021-9169","issn":["0021-9169","1878-593X"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":["norway-1"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Atmospheric and Terrestrial Physics","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5054258792","display_name":"Abhijit Mitra","orcid":"https://orcid.org/0000-0002-1323-803X","observed_orcids":["https://orcid.org/0000-0002-1323-803X"]},"institutions":[{"id":"https://openalex.org/I88910343","display_name":"CSIR National Physical Laboratory of India","ror":"https://ror.org/0307k1x46","country_code":"IN","type":"facility","lineage":["https://openalex.org/I2799351866","https://openalex.org/I4210134808","https://openalex.org/I66760702","https://openalex.org/I88910343"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"A.P. Mitra","raw_affiliation_strings":["Radio Propagation Unit National Physical Laboratory New DelhiIndia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Radio Propagation Unit National Physical Laboratory New DelhiIndia","institution_ids":["https://openalex.org/I88910343"]}]},{"author_position":"middle","author":{"id":null,"display_name":"C.V. Subrahmanyam","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I88910343","display_name":"CSIR National Physical Laboratory of India","ror":"https://ror.org/0307k1x46","country_code":"IN","type":"facility","lineage":["https://openalex.org/I2799351866","https://openalex.org/I4210134808","https://openalex.org/I66760702","https://openalex.org/I88910343"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"C.V. Subrahmanyam","raw_affiliation_strings":["Radio Propagation Unit National Physical Laboratory New DelhiIndia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Radio Propagation Unit National Physical Laboratory New DelhiIndia","institution_ids":["https://openalex.org/I88910343"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086030758","display_name":"Mirjana Karabin","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I88910343","display_name":"CSIR National Physical Laboratory of India","ror":"https://ror.org/0307k1x46","country_code":"IN","type":"facility","lineage":["https://openalex.org/I2799351866","https://openalex.org/I4210134808","https://openalex.org/I66760702","https://openalex.org/I88910343"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Mirjana Karabin","raw_affiliation_strings":["Radio Propagation Unit National Physical Laboratory New DelhiIndia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Radio Propagation Unit National Physical Laboratory New DelhiIndia","institution_ids":["https://openalex.org/I88910343"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I88910343"],"apc_list":null,"apc_paid":null,"fwci":0.6634,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.69246353,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"26","issue":"11","first_page":"1138","last_page":"1142"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10159","display_name":"Ionosphere and magnetosphere dynamics","score":0.8223000168800354,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"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/T10159","display_name":"Ionosphere and magnetosphere dynamics","score":0.8223000168800354,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"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/T10251","display_name":"Solar and Space Plasma Dynamics","score":0.17270000278949738,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10787","display_name":"Lightning and Electromagnetic Phenomena","score":0.0006000000284984708,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"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/sudden-ionospheric-disturbances","display_name":"sudden ionospheric disturbances","score":0.9539999961853027},{"id":"https://openalex.org/keywords/solar-radio-flux","display_name":"solar radio flux","score":0.8500000238418579},{"id":"https://openalex.org/keywords/solar-flares","display_name":"solar flares","score":0.9559999704360962},{"id":"https://openalex.org/keywords/seasonal-variation","display_name":"seasonal variation","score":0.753000020980835},{"id":"https://openalex.org/keywords/solar-cycle","display_name":"solar cycle","score":0.8159999847412109},{"id":"https://openalex.org/keywords/ionospheric-disturbances","display_name":"ionospheric disturbances","score":0.5400000214576721}],"concepts":[{"id":"https://openalex.org/C116403925","wikidata":"https://www.wikidata.org/wiki/Q162219","display_name":"Ionosphere","level":2,"score":0.7326618432998657},{"id":"https://openalex.org/C2992142144","wikidata":"https://www.wikidata.org/wiki/Q109032554","display_name":"Solar radio","level":2,"score":0.7026842832565308},{"id":"https://openalex.org/C2778334786","wikidata":"https://www.wikidata.org/wiki/Q1586270","display_name":"Variation (astronomy)","level":2,"score":0.5921116471290588},{"id":"https://openalex.org/C171428510","wikidata":"https://www.wikidata.org/wiki/Q2314257","display_name":"Solar minimum","level":5,"score":0.5836303234100342},{"id":"https://openalex.org/C43867161","wikidata":"https://www.wikidata.org/wiki/Q49385","display_name":"Solar cycle","level":4,"score":0.5821820497512817},{"id":"https://openalex.org/C185001636","wikidata":"https://www.wikidata.org/wiki/Q119830","display_name":"Solar flare","level":2,"score":0.5820204019546509},{"id":"https://openalex.org/C110619738","wikidata":"https://www.wikidata.org/wiki/Q7556140","display_name":"Solar cycle 22","level":5,"score":0.551930844783783},{"id":"https://openalex.org/C91586092","wikidata":"https://www.wikidata.org/wiki/Q757520","display_name":"Atmospheric sciences","level":1,"score":0.550412654876709},{"id":"https://openalex.org/C68709404","wikidata":"https://www.wikidata.org/wiki/Q1134475","display_name":"Flux (metallurgy)","level":2,"score":0.5345847606658936},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4850441813468933},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.46676963567733765},{"id":"https://openalex.org/C164495641","wikidata":"https://www.wikidata.org/wiki/Q3874259","display_name":"Solar cycle 23","level":5,"score":0.4630923569202423},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.38063934445381165},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.37443143129348755},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.2494218647480011},{"id":"https://openalex.org/C82706917","wikidata":"https://www.wikidata.org/wiki/Q10251","display_name":"Plasma","level":2,"score":0.15410766005516052},{"id":"https://openalex.org/C108411613","wikidata":"https://www.wikidata.org/wiki/Q79833","display_name":"Solar wind","level":3,"score":0.14042598009109497},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.13726311922073364},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0021-9169(64)90102-3","doi":"https://doi.org/10.1016/0021-9169(64)90102-3","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0021-9169(64)90102-3","pdf_url":null,"source":{"id":"https://openalex.org/S4210190731","display_name":"Journal of Atmospheric and Terrestrial Physics","issn_l":"0021-9169","issn":["0021-9169","1878-593X"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":["norway-1"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Atmospheric and Terrestrial Physics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":1,"referenced_works":["https://openalex.org/W2092668340"],"related_works":["https://openalex.org/W2071575735","https://openalex.org/W3136691319","https://openalex.org/W207524304","https://openalex.org/W1635459444","https://openalex.org/W1676769996","https://openalex.org/W2059519942","https://openalex.org/W2056262327","https://openalex.org/W2102710168","https://openalex.org/W4246930182","https://openalex.org/W1964078923"],"abstract_inverted_index":null,"counts_by_year":[{"year":2020,"cited_by_count":1}],"updated_date":"2026-09-29T14:09:16.559479","created_date":"2016-06-24T00:00:00"}
