{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1362825893604167680.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/0021-9169(94)90130-9"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:0021916994901309?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:0021916994901309?httpAccept=text/plain"}}],"dc:title":[{"@value":"Periodic and quasiperiodic VLF emissions"}],"description":[{"notation":[{"@value":"Abstract   A review of periodic and quasiperiodic VLF emissions observed at ground-based stations and in the Earth's magnetosphere is presented. Emissions with periods below 10 s are divided into three main groups: periodic emissions, hisslers and pulsing hiss, while the quasiperiodic emissions with periods above 10 s are divided into two main groups: QP1, which are definitely related to geomagnetic pulsations, and QP2, which are not obviously related to them, based on ground observations. However, it is pointed out that all types of quasiperiodic emissions with periods over 10 s observed onboard satellites show some association with geomagnetic pulsations which suggests that both QP1 and QP2 can have similar mechanisms for their generation. Different approaches to the theoretical modelling of periodic and quasiperiodic emissions are discussed."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382825893604167681","@type":"Researcher","foaf:name":[{"@value":"S.S. Sazhin"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825893604167680","@type":"Researcher","foaf:name":[{"@value":"M. Hayakawa"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00219169"}],"prism:publicationName":[{"@value":"Journal of Atmospheric and Terrestrial Physics"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"1994-05","prism:volume":"56","prism:number":"6","prism:startingPage":"735","prism:endingPage":"753"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/","https://www.elsevier.com/legal/tdmrep-license"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:0021916994901309?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:0021916994901309?httpAccept=text/plain"}],"createdAt":"2003-08-06","modifiedAt":"2025-09-05","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050001338804864256","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"ELF/VLF wave propagation at subauroral latitudes: Conjugate observation between the ground and Van Allen Probes A"}]},{"@id":"https://cir.nii.ac.jp/crid/1050570852919412096","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Spatial Extent of Quasiperiodic Emissions Simultaneously Observed by Arase and Van Allen Probes on 29 November 2018"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004229802214400","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Ground‐based ELF/VLF chorus observations at subauroral latitudes—VLF‐CHAIN Campaign"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580230583935616","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Statistics of Unusual Naturally Occurring VLF Radio Emissions Termed Bursty‐Patches Observed at Kannuslehto, Finland"}]},{"@id":"https://cir.nii.ac.jp/crid/1360849943103363072","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Longitudinal Extent of Magnetospheric ELF/VLF Waves using Multipoint PWING Ground Stations at Subauroral Latitudes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360853567850575360","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Multievent Study of Characteristics and Propagation of Naturally Occurring ELF/VLF Waves Using High‐Latitude Ground Observations and Conjunctions With the Arase Satellite"}]},{"@id":"https://cir.nii.ac.jp/crid/2050588892106657280","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A review of unusual VLF bursty-patches observed in Northern Finland for Earth, Planets and Space"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1016/0021-9169(94)90130-9"},{"@type":"OPENAIRE","@value":"doi_dedup___::3f0f5b360922c9c6a1ddd18b3c1fd27c"},{"@type":"CROSSREF","@value":"10.1002/2014ja020161_references_DOI_7KuEqB6eQSQ169KGKfiWpRFAOI5"},{"@type":"CROSSREF","@value":"10.1029/2020ja028126_references_DOI_7KuEqB6eQSQ169KGKfiWpRFAOI5"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01516-y_references_DOI_7KuEqB6eQSQ169KGKfiWpRFAOI5"},{"@type":"CROSSREF","@value":"10.1002/2015ja022264_references_DOI_7KuEqB6eQSQ169KGKfiWpRFAOI5"},{"@type":"CROSSREF","@value":"10.1029/2022ja030792_references_DOI_7KuEqB6eQSQ169KGKfiWpRFAOI5"},{"@type":"CROSSREF","@value":"10.1029/2019ja026810_references_DOI_7KuEqB6eQSQ169KGKfiWpRFAOI5"},{"@type":"CROSSREF","@value":"10.1029/2020ja028682_references_DOI_7KuEqB6eQSQ169KGKfiWpRFAOI5"}]}