{"@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/1361981469033337856.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/2013ja019085"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2013JA019085"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/pdf/10.1002/2013JA019085"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/full-xml/10.1002/2013JA019085"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2013JA019085"}}],"dc:title":[{"@value":"Magnetosphere‐ionosphere coupling of global Pi2 pulsations"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>Global Pi2 pulsations have mainly been associated with either low/middle latitudes or middle/high latitudes and, as a result, have been treated as two different types of Pi2 pulsations, either the plasmaspheric cavity resonance or the transient response of the substorm current wedge, respectively. However, in some reports, global Pi2 pulsations have a single period spanning low/middle/high latitudes. This “super” global type has not yet been satisfactorily explained. In particular, it has been a major challenge to identify the coupling between the source region and the ground. Here we report two consecutive super global Pi2 events which were observed over a wide latitudinal and longitudinal range. Using four spacecraft that were azimuthally spread out in the nightside and one spacecraft in the tail lobe, it was possible to follow the Pi2 signal along various paths with time delays from the magnetotail to the ground. Furthermore, it was found that the global pulsations were a combination of various modes including the transient Alfvén and fast modes, field line resonance, and possibly a forced cavity‐type resonance. As for the source of the Pi2 periodicity, oscillatory plasma flow inside the plasma sheet during flow braking (e.g., interchange oscillations) is a likely candidate. Such flow modulations, resembling the ground Pi2 pulsations, were recorded for both events.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380848661782594948","@type":"Researcher","foaf:name":[{"@value":"A. Keiling"}],"jpcoar:affiliationName":[{"@value":"Space Sciences Laboratory University of California  Berkeley California USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337862","@type":"Researcher","foaf:name":[{"@value":"O. Marghitu"}],"jpcoar:affiliationName":[{"@value":"Institute for Space Sciences  Bucharest Romania"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337859","@type":"Researcher","foaf:name":[{"@value":"J. Vogt"}],"jpcoar:affiliationName":[{"@value":"Jacobs University Bremen  Bremen Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337858","@type":"Researcher","foaf:name":[{"@value":"O. Amm"}],"jpcoar:affiliationName":[{"@value":"Finnish Meteorological Institute  Helsinki Finland"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337857","@type":"Researcher","foaf:name":[{"@value":"C. Bunescu"}],"jpcoar:affiliationName":[{"@value":"Institute for Space Sciences  Bucharest Romania"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337863","@type":"Researcher","foaf:name":[{"@value":"V. Constantinescu"}],"jpcoar:affiliationName":[{"@value":"Institute for Space Sciences  Bucharest Romania"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337867","@type":"Researcher","foaf:name":[{"@value":"H. Frey"}],"jpcoar:affiliationName":[{"@value":"Space Sciences Laboratory University of California  Berkeley California USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337860","@type":"Researcher","foaf:name":[{"@value":"M. Hamrin"}],"jpcoar:affiliationName":[{"@value":"Umeå University  Umeå Sweden"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337861","@type":"Researcher","foaf:name":[{"@value":"T. Karlsson"}],"jpcoar:affiliationName":[{"@value":"Royal Institute of Technology  Stockholm Sweden"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337864","@type":"Researcher","foaf:name":[{"@value":"R. Nakamura"}],"jpcoar:affiliationName":[{"@value":"Space Research Institute  Graz Austria"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337868","@type":"Researcher","foaf:name":[{"@value":"H. Nilsson"}],"jpcoar:affiliationName":[{"@value":"Swedish Institute of Space Physics  Kiruna Sweden"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337865","@type":"Researcher","foaf:name":[{"@value":"J. Semeter"}],"jpcoar:affiliationName":[{"@value":"Boston University  Boston Massachusetts USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469033337856","@type":"Researcher","foaf:name":[{"@value":"E. Sorbalo"}],"jpcoar:affiliationName":[{"@value":"Jacobs University Bremen  Bremen Germany"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"21699380"},{"@type":"EISSN","@value":"21699402"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Space Physics"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2014-04","prism:volume":"119","prism:number":"4","prism:startingPage":"2717","prism:endingPage":"2739"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2013JA019085"},{"@id":"https://onlinelibrary.wiley.com/doi/pdf/10.1002/2013JA019085"},{"@id":"https://onlinelibrary.wiley.com/doi/full-xml/10.1002/2013JA019085"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2013JA019085"}],"createdAt":"2014-03-20","modifiedAt":"2023-09-02","relatedProduct":[{"@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/1360584339753560448","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Correspondence of Pi2 Pulsations, Aurora Luminosity, and Plasma Flux Fluctuation Near a Substorm Brightening Aurora: Arase Observations"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848654734286336","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Initial deflection of middle‐latitude Pi2 pulsations in the premidnight sector: Remote detection of oscillatory upward field‐aligned current at substorm onset"}]},{"@id":"https://cir.nii.ac.jp/crid/1361131418080098816","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Formation of a 3‐D Oscillatory Current System Associated With Global High‐Correlation Pi 2 Event: A Case Study"}]},{"@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":"10.1002/2013ja019085"},{"@type":"CROSSREF","@value":"10.1029/2023ja031648_references_DOI_RB6CyBeSNelXFgJ4VBbDHKrDHOC"},{"@type":"CROSSREF","@value":"10.1002/2015ja021698_references_DOI_RB6CyBeSNelXFgJ4VBbDHKrDHOC"},{"@type":"CROSSREF","@value":"10.1186/s40623-016-0514-1_references_DOI_RB6CyBeSNelXFgJ4VBbDHKrDHOC"},{"@type":"CROSSREF","@value":"10.1029/2019ja026988_references_DOI_RB6CyBeSNelXFgJ4VBbDHKrDHOC"},{"@type":"CROSSREF","@value":"10.1029/2018ja026094_references_DOI_RB6CyBeSNelXFgJ4VBbDHKrDHOC"}]}