{"@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/1361699994840984192.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/s1364-6826(97)00094-1"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S1364682697000941?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S1364682697000941?httpAccept=text/plain"}}],"dc:title":[{"@value":"Conjugate observations of the mid-latitude electric field fluctuations with the MU radar and the Freja satellite"}],"description":[{"notation":[{"@value":"Abstract   Conjugate Freja satellite and MU radar observations were conducted from 1993 to 1995 to clarify the generation mechanism of mid-latitude electric field fluctuations (MEFs) which were found from DE-2 satellite observations. The detection of MEFs at higher altitudes than 1000 km by the Freja satellite confirms that the MEFs are transmitted along the geomagnetic field line without any significant damping. On one night of such conjugate observations, MEFs were observed in a traveling ionospheric disturbance (TID). On the other nights when the MEFs were observed by Freja, large scale density structures in the ionosphere were observed with the MU radar. Spread-F phenomena were also observed by ionosondes associated with these structures. The large scale modulation of the ionosphere, such as TIDs, might cause small scale modulations which grow through ionospheric instabilities. The linear growth rate is evaluated using a set of equations describing the growth of the mid-latitude ionospheric irregularities. The growth rate is shown to be too small under average conditions; however, when the neutral wind in TIDs is included, it is large enough to generate MEFs."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380017279837967631","@type":"Researcher","foaf:name":[{"@value":"A. Saito"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994840984196","@type":"Researcher","foaf:name":[{"@value":"T. Iyemori"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994840984193","@type":"Researcher","foaf:name":[{"@value":"L.G. Blomberg"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994840984194","@type":"Researcher","foaf:name":[{"@value":"M. Yamamoto"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994840984192","@type":"Researcher","foaf:name":[{"@value":"M. Takeda"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"13646826"}],"prism:publicationName":[{"@value":"Journal of Atmospheric and Solar-Terrestrial Physics"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"1998-01","prism:volume":"60","prism:number":"1","prism:startingPage":"129","prism:endingPage":"140"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S1364682697000941?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S1364682697000941?httpAccept=text/plain"}],"createdAt":"2002-07-25","modifiedAt":"2019-04-23","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050296123054925952","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Nighttime Midlatitude E-F Coupling in Geomagnetic Conjugate Ionospheres: A Double Thin Shell Model and a Multi-Source Data Investigation"},{"@value":"Nighttime Midlatitude E‐F Coupling in Geomagnetic Conjugate Ionospheres: A Double Thin Shell Model and a Multi‐Source Data Investigation"}]},{"@id":"https://cir.nii.ac.jp/crid/1360002215432406400","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Low and Midlatitude Ionospheric Plasma Density Irregularities and Their Effects on Geomagnetic Field"}]},{"@id":"https://cir.nii.ac.jp/crid/1360002216707211648","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Spatial relationship of nighttime medium‐scale traveling ionospheric disturbances and <i>F</i> region field‐aligned irregularities observed with two spaced all‐sky airglow imagers and the middle and upper atmosphere radar"}]},{"@id":"https://cir.nii.ac.jp/crid/1360017279830097664","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Multi‐Event Analysis of Magnetosphere‐Ionosphere Coupling of Nighttime Medium‐Scale Traveling Ionospheric Disturbances From the Ground and the Arase Satellite"}]},{"@id":"https://cir.nii.ac.jp/crid/1360283690408981632","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Overview of Nighttime Ionospheric Instabilities at Low- and Mid-Latitudes: Coupling Aspects Resulting in Structuring at the Mesoscale"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848658220450048","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Motion of high‐latitude nighttime medium‐scale traveling ionospheric disturbances associated with auroral brightening"}]},{"@id":"https://cir.nii.ac.jp/crid/2050588892108509184","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Electromagnetic conjugacy of ionospheric disturbances after the 2022 Hunga Tonga-Hunga Ha'apai volcanic eruption as seen in GNSS-TEC and SuperDARN Hokkaido pair of radars observations"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1016/s1364-6826(97)00094-1"},{"@type":"OPENAIRE","@value":"doi_dedup___::98e289a00c559453773e941b055bcb75"},{"@type":"CROSSREF","@value":"10.1007/s11214-016-0295-7_references_DOI_Ffu6hTxrhc6QsZqX9MigfSYvKTL"},{"@type":"CROSSREF","@value":"10.1029/2008ja013902_references_DOI_Ffu6hTxrhc6QsZqX9MigfSYvKTL"},{"@type":"CROSSREF","@value":"10.1029/2022ja030542_references_DOI_Ffu6hTxrhc6QsZqX9MigfSYvKTL"},{"@type":"CROSSREF","@value":"10.1186/s40623-022-01665-8_references_DOI_Ffu6hTxrhc6QsZqX9MigfSYvKTL"},{"@type":"CROSSREF","@value":"10.1029/2022ja031074_references_DOI_Ffu6hTxrhc6QsZqX9MigfSYvKTL"},{"@type":"CROSSREF","@value":"10.1007/s11214-011-9816-6_references_DOI_Ffu6hTxrhc6QsZqX9MigfSYvKTL"},{"@type":"CROSSREF","@value":"10.1029/2012ja017928_references_DOI_Ffu6hTxrhc6QsZqX9MigfSYvKTL"}]}