{"@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/1361137045421817472.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2001ja009159"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2001JA009159"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2001JA009159"}}],"dc:title":[{"@value":"Spatiotemporal variability and propagation of equatorial noise observed by Cluster"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>We report a multipoint case study of the electromagnetic equatorial noise observed by the Cluster project. High‐resolution data were measured in three close points in space located in the morning sector of the outer plasmasphere. We demonstrate a narrow latitudinal extent of the emissions with a typical width of 2°, centered near the minimum‐B equator. Power spectra recorded by the different satellites show a complex structure of emission lines whose relative intensities and positions vary at timescales of 1–2 min and/or at spatial scales of tens of wavelengths. These lines do not match harmonics of the local proton cyclotron frequency, as it would be expected if the waves are generated by energetic ions and observed near the source region. We bring observational evidence that the waves propagate with a significant radial component and thus can propagate from a distant generation region located at different radial distances where ion cyclotron frequencies match the observed fine structure.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380285711776167307","@type":"Researcher","foaf:name":[{"@value":"O. Santolík"}],"jpcoar:affiliationName":[{"@value":"Department of Physics and Astronomy University of Iowa  Iowa City Iowa USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045421817602","@type":"Researcher","foaf:name":[{"@value":"J. S. Pickett"}],"jpcoar:affiliationName":[{"@value":"Department of Physics and Astronomy University of Iowa  Iowa City Iowa USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045421817472","@type":"Researcher","foaf:name":[{"@value":"D. A. Gurnett"}],"jpcoar:affiliationName":[{"@value":"Department of Physics and Astronomy University of Iowa  Iowa City Iowa USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045421817601","@type":"Researcher","foaf:name":[{"@value":"M. Maksimovic"}],"jpcoar:affiliationName":[{"@value":"Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique Observatoire de Paris‐Meudon  Meudon France"}]},{"@id":"https://cir.nii.ac.jp/crid/1380016868766564736","@type":"Researcher","foaf:name":[{"@value":"N. Cornilleau‐Wehrlin"}],"jpcoar:affiliationName":[{"@value":"Centre d'Etude des Environnements Terrestre et Planétaires  Vélizy France"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Space Physics"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2002-12","prism:volume":"107","prism:number":"A12","prism:startingPage":"1495"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2001JA009159"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2001JA009159"}],"createdAt":"2003-01-13","modifiedAt":"2023-10-31","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360857593670395520","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Cross-Energy Couplings from Magnetosonic Waves to Electromagnetic Ion Cyclotron Waves through Cold Ion Heating inside the Plasmasphere"}]},{"@id":"https://cir.nii.ac.jp/crid/2050025942186664192","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Evaluation of waveform data processing in Wave-Particle Interaction Analyzer"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2001ja009159"},{"@type":"CROSSREF","@value":"10.1186/1880-5981-66-63_references_DOI_UVxaInWHXSjGhAvInv29hNRJ432"},{"@type":"CROSSREF","@value":"10.1103/physrevlett.127.245101_references_DOI_UVxaInWHXSjGhAvInv29hNRJ432"}]}