{"@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/1361981468962995200.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/gl017i011p01853"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2FGL017i011p01853"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/GL017i011p01853"}}],"dc:title":[{"@value":"Pc1 pulsations observed by AMPTE/CCE in the Earth's outer magnetosphere"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Electromagnetic ion cyclotron waves in the Pc1–2 frequency range (0.1–5 Hz) have been observed in Earth's equatorial magnetosphere over the range <jats:italic>L</jats:italic>=3 to 9 by the AMPTE/CCE magnetic fields experiment. We report detailed analysis of data from two orbits together with preliminary occurrence statistics from 31 days. One example occurred during disturbed geomagnetic conditions (maximum AE>1000 nT) and exhibited intense Pc1 from <jats:italic>L</jats:italic>=5 to the magnetopause (<jats:italic>L</jats:italic>≈7.5). The second example occurred during moderate to quiet conditions (average AE≈300 nT) and displayed Pc1 in two distinct <jats:italic>L</jats:italic> ranges: low (<jats:italic>L</jats:italic>≈4) and high (<jats:italic>L</jats:italic>>7,5). Statistical results show that Pc1 are ≈4 times more common for <jats:italic>L</jats:italic>>7 than for <jats:italic>L</jats:italic><6 and occur primarily in the afternoon. The discovery of a statistically dominant outer magnetospheric source region implies that ring current interaction with the plasmasphere is not the primary source of Pcl excitation but suggests that plasma sheet ions may be a significant energy source for Pc1. This result is consistent with the strong dependence of the linear convective growth rate on magnetic field strength.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381981468962995201","@type":"Researcher","foaf:name":[{"@value":"B. J. Anderson"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981468962995200","@type":"Researcher","foaf:name":[{"@value":"K. Takahashi"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981468962995203","@type":"Researcher","foaf:name":[{"@value":"R. E. Erlandson"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981468962995202","@type":"Researcher","foaf:name":[{"@value":"L. J. Zanetti"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00948276"},{"@type":"EISSN","@value":"19448007"}],"prism:publicationName":[{"@value":"Geophysical Research Letters"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"1990-10","prism:volume":"17","prism:number":"11","prism:startingPage":"1853","prism:endingPage":"1856"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2FGL017i011p01853"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/GL017i011p01853"}],"createdAt":"2008-02-06","modifiedAt":"2023-09-25","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050287685056607872","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Occurrence characteristics of electromagnetic ion cyclotron waves at sub-auroral Antarctic station Maitri during solar cycle 24"}]},{"@id":"https://cir.nii.ac.jp/crid/1360002214585636992","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Global characteristics of electromagnetic ion cyclotron waves: Occurrence rate and its storm dependence"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004229808273152","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Electromagnetic Ion Cyclotron Waves Detected by Kaguya and Geotail in the Earth's Magnetotail"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/gl017i011p01853"},{"@type":"CROSSREF","@value":"10.1002/jgra.50385_references_DOI_VrqrLH3D6wg8CaolNzC64gjGkTp"},{"@type":"CROSSREF","@value":"10.1002/2017ja024505_references_DOI_VrqrLH3D6wg8CaolNzC64gjGkTp"},{"@type":"CROSSREF","@value":"10.1186/s40623-020-01157-7_references_DOI_VrqrLH3D6wg8CaolNzC64gjGkTp"}]}