{"@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/1361699993958227072.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/gl015i008p00768"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2FGL015i008p00768"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/GL015i008p00768"}}],"dc:title":[{"@value":"First VHF radar observation of midlatitude F‐region field‐aligned irregularities"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>We describe the first midlatitude F‐region VHF radar observations of small‐scale Field‐Aligned Irregularities (FAI). Looking northward at ∼ 34° elevation the locus of perpendicularity with the geomagnetic field B remains inside the radar beam, such that FAI can be observed, at radar ranges from 350 to over 800 km or F region altitudes from 200 to 500 km, approximately. The preliminary results presented here show the large‐scale (> 20 km) configuration of small‐scale (322.6 cm, half the radar wavelength) F‐region irregularities as well as typical spectral results. Our most important finding is that at least on some occasions there is a quasi‐periodic variation in time and space, on scales of approximately 12 minutes and 50 km, of the observed plasma instabilities.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380285711828972675","@type":"Researcher","foaf:name":[{"@value":"S. Fukao"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699993958227076","@type":"Researcher","foaf:name":[{"@value":"J. P. McClure"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699993958227075","@type":"Researcher","foaf:name":[{"@value":"A. Ito"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699993958227073","@type":"Researcher","foaf:name":[{"@value":"T. Sato"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699993958227077","@type":"Researcher","foaf:name":[{"@value":"I. Kimura"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699993958227072","@type":"Researcher","foaf:name":[{"@value":"T. Tsuda"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699993958227074","@type":"Researcher","foaf:name":[{"@value":"S. Kato"}]}],"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":"1988-08","prism:volume":"15","prism:number":"8","prism:startingPage":"768","prism:endingPage":"771"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2FGL015i008p00768"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/GL015i008p00768"}],"createdAt":"2008-02-06","modifiedAt":"2023-11-22","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050846637961658624","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"First Incoherent Scatter Measurements and Adaptive Suppression of Field-Aligned Irregularities by the PANSY Radar at Syowa Station, Antarctic"}]},{"@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/1390282681488669184","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Observations of traveling ionospheric disturbances and 3-m scale irregularities in the nighttime <I>F</I>-region ionosphere with the MU radar and a GPS network"},{"@value":"Observations of traveling ionospheric disturbances and 3-m scale irregularities in the nighttime F-region ionosphere with the MU radar and a GPS network"}]},{"@id":"https://cir.nii.ac.jp/crid/2051996267026459008","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Occurrence characteristics and lowest speed limit of subauroral polarization stream (SAPS) observed by the SuperDARN Hokkaido East radar"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/gl015i008p00768"},{"@type":"OPENAIRE","@value":"doi_dedup___::1743e6e09d2effef94dea44ff4c6c85e"},{"@type":"CROSSREF","@value":"10.1029/2008ja013902_references_DOI_SnG3JVDSqDtImcEjEUYfGibsFEH"},{"@type":"CROSSREF","@value":"10.1186/bf03352419_references_DOI_SnG3JVDSqDtImcEjEUYfGibsFEH"},{"@type":"CROSSREF","@value":"10.1186/s40623-015-0299-7_references_DOI_SnG3JVDSqDtImcEjEUYfGibsFEH"},{"@type":"CROSSREF","@value":"10.1175/jtech-d-18-0175.1_references_DOI_SnG3JVDSqDtImcEjEUYfGibsFEH"}]}