{"@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/1360011144840323200.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/92ja00328"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F92JA00328"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/92JA00328"}}],"dc:title":[{"@value":"Distribution of ULF energy (ƒ < 80 mHz) in the inner magnetosphere: A statistical analysis of AMPTE CCE magnetic field data"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>The distribution of ULF energy (frequency < 80 mHz) in the inner magnetosphere (<jats:italic>L</jats:italic>=2.5–6.5) has been studied using magnetic field measurements made with the Active Magnetospheric Particle Tracers Explorers Charge Composition Explorer (AMPTE CCE) spacecraft during its whole mission of over 4 years. The magnetic field time series was split into consecutive 10‐min segments and subjected to fast Fourier transform (FFT), and the spectral data were archived along with the <jats:italic>K<jats:sub>p</jats:sub></jats:italic> index and the satellite location. This data base was then used to examine the spatial distribution of ULF energy. Overall, the oscillation energy is localized to the dayside except for compressional oscillations associated with substorms. From the spatial distributions of wave power and spectral structures we identify several pulsation types, including multiharmonic toroidal oscillations; equatorial compressional Pc 3 oscillations; second harmonic poloidal oscillations; and nightside compressional oscillations. The toroidal oscillations are observable even in the plasmasphere, and using their frequencies we can determine the statistical radial profile of the plasma mass density and Alfvén velocity. We find a clear signature of the plasmapause in the profiles of these average parameters. Of particular interest among the other oscillation types are the equatorial compressional Pc 3 oscillations that have an average spectral peak around 30 mHz and are present in the prenoon sector and from <jats:italic>L</jats:italic> ∼ 3 to ∼ 5. The oscillations are similar to the compressional Pc 3 previously observed at and near geostationary orbit and might represent magnetohydrodynamic waves propagating from the parallel portion of the bow shock.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380011144840323200","@type":"Researcher","foaf:name":[{"@value":"Kazue Takahashi"}]},{"@id":"https://cir.nii.ac.jp/crid/1380011144840323201","@type":"Researcher","foaf:name":[{"@value":"Brian J. Anderson"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Space Physics"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"1992-07","prism:volume":"97","prism:number":"A7","prism:startingPage":"10751","prism:endingPage":"10773"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F92JA00328"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/92JA00328"}],"createdAt":"2008-02-06","modifiedAt":"2023-09-22","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360009142458498688","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Propagation of Ultralow‐Frequency Waves from the Ion Foreshock into the Magnetosphere During the Passage of a Magnetic Cloud"}]},{"@id":"https://cir.nii.ac.jp/crid/1360021391860633856","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Plasmasphere Control of ULF Wave Distribution at Different Geomagnetic Conditions"}]},{"@id":"https://cir.nii.ac.jp/crid/1360025429408267904","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"From Foreshock 30-Second Waves to Magnetospheric Pc3 Waves"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285708266986368","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Magnetospheric responses to the passage of the interplanetary shock on 24 November 2008"}]},{"@id":"https://cir.nii.ac.jp/crid/1360565166662399744","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Dependence of the amplitude of Pc5‐band magnetic field variations on the solar wind and solar activity"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848654738468608","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Van Allen Probes Observations of Second Harmonic Poloidal Standing Alfvén Waves"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848658217221504","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Pi2 pulsations in the inner magnetosphere simultaneously observed by the Active Magnetospheric Particle Tracer Explorers/Charge Composition Explorer and Dynamics Explorer 1 satellites"}]},{"@id":"https://cir.nii.ac.jp/crid/1360861707357177344","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Long‐Lasting Ground‐Satellite High Coherence of Compressional Dayside Pc3–Pc4 Pulsations"}]},{"@id":"https://cir.nii.ac.jp/crid/1360861707357326592","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Distribution of ULF Wave Power in Magnetic Latitude and Local Time Using THEMIS and Arase Measurements"}]},{"@id":"https://cir.nii.ac.jp/crid/1360865815685070080","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Polarization and Spatial Distribution Features of Pc4 and Pc5 Waves in the Magnetosphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206511008256","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"ULF pulsations observed by the ETS-VI satellite"},{"@value":"ULF pulsations observed by the ETS-VI satellite: Substorm associated azimuthal Pc 4 pulsations on the nightside"},{"@value":"ULF pulsations observed by the ETS-VI satellite: Substorm associated azimuthal Pc 4 pulsation on the nightside"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206511887232","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Simultaneous ground-based and satellite observations of Pc5 geomagnetic pulsations: A case study using multipoint measurements"}]},{"@id":"https://cir.nii.ac.jp/crid/2050870367075034240","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Oxygen torus and its coincidence with EMIC wave in the deep inner magnetosphere : Van Allen Probe B and Arase 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