{"@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/1361418520462104576.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/96gl00661"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F96GL00661"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/96GL00661"}},{"identifier":{"@type":"NAID","@value":"30013366407"}}],"dc:title":[{"@value":"Are low‐latitude Pi2 pulsations cavity/waveguide modes?"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>The plasmasphere seems the most likely magnetospheric region in which compressional hydromagnetic waves may be trapped to form cavity modes. It has been suggested that substorm‐associated Pi2 magnetic pulsations have a cavity mode character at low latitudes. Recent detailed observations of night‐side Pi2 events at low latitudes have also suggested a cavity or waveguide character. We apply a well‐tried numerical hydromagnetic wave coupling model at low latitudes, and compare the model output with these observations. We find that the qualitative amplitude and phase characteristics of the model magnetic fields in latitude and longitude fit well with the observations, provided the ionospheric boundary condition at low latitudes gives negligible rotation of magnetic field components between ionosphere and ground. The comparison supports the idea that low‐latitude Pi2 pulsations are cavity/waveguide modes. It also suggests that the magnetic H component observed at the ground near the equator may be a combination of the radial and compressional components above the ionosphere.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1582543026270671872","@type":"Researcher","foaf:name":[{"@value":"W. Allan"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520462104580","@type":"Researcher","foaf:name":[{"@value":"F. W. Menk"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520462104579","@type":"Researcher","foaf:name":[{"@value":"B. J. Fraser"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520462104576","@type":"Researcher","foaf:name":[{"@value":"Y. Li"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520462104577","@type":"Researcher","foaf:name":[{"@value":"S. P. White"}]}],"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":"1996-04","prism:volume":"23","prism:number":"7","prism:startingPage":"765","prism:endingPage":"768"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F96GL00661"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/96GL00661"}],"createdAt":"2004-02-04","modifiedAt":"2023-11-22","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050282810719229056","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Wp index: A new substorm index derived from high-resolution geomagnetic field data at low latitude"},{"@value":"Wp index: A new substorm index derived from high‐resolution geomagnetic field data at low latitude"}]},{"@id":"https://cir.nii.ac.jp/crid/1050845763745243648","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Comprehensive Study of Low‐Latitude Pi2 Pulsations Using Observations From Multisatellite Swarm Mission and Global Network of Ground Observatories"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004229806082944","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Estimation of magnetospheric plasma ion composition for 1956–1975 by using high time resolution geomagnetic field data created from analog magnetograms"}]},{"@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/1360567183240429312","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Multipoint observation of fast mode waves trapped in the dayside plasmasphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206510990720","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Automated detection of Pi 2 pulsations using wavelet analysis: 2. An application for dayside Pi 2 pulsation study"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206511476992","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Evidence of the coupling of a fast magnetospheric cavity mode to field line resonances"},{"@language":"ja-Kana","@value":"Evidence of the coupling of a fast magn"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681489599360","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"A satellite magnetometer observation of dusk-to-dawn current in the midnight magnetosphere at low-latitude Pi2 onset"},{"@language":"ja-Kana","@value":"satellite magnetometer observation of dusk to dawn current in the midnight magnetosphere at low latitude Pi2 onset"}]},{"@id":"https://cir.nii.ac.jp/crid/2051714791863302528","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Solar terminator effects on middle- to low-latitude Pi2 pulsations"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/96gl00661"},{"@type":"CIA","@value":"30013366407"},{"@type":"CROSSREF","@value":"10.1186/bf03352162_references_DOI_R7Lsgk0Cv5EpGMwhIsQT4R3Eae0"},{"@type":"CROSSREF","@value":"10.1002/2016ja022510_references_DOI_R7Lsgk0Cv5EpGMwhIsQT4R3Eae0"},{"@type":"CROSSREF","@value":"10.1186/bf03352434_references_DOI_R7Lsgk0Cv5EpGMwhIsQT4R3Eae0"},{"@type":"CROSSREF","@value":"10.1186/bf03352206_references_DOI_R7Lsgk0Cv5EpGMwhIsQT4R3Eae0"},{"@type":"CROSSREF","@value":"10.1029/2010ja015956_references_DOI_R7Lsgk0Cv5EpGMwhIsQT4R3Eae0"},{"@type":"CROSSREF","@value":"10.1029/2012sw000785_references_DOI_R7Lsgk0Cv5EpGMwhIsQT4R3Eae0"},{"@type":"CROSSREF","@value":"10.1186/s40623-016-0514-1_references_DOI_R7Lsgk0Cv5EpGMwhIsQT4R3Eae0"},{"@type":"CROSSREF","@value":"10.1029/2020ja028474_references_DOI_FogW44ujcqH2FLnF4DSZHhvFwgO"},{"@type":"CROSSREF","@value":"10.1029/2018ja026094_references_DOI_R7Lsgk0Cv5EpGMwhIsQT4R3Eae0"}]}